http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c4c0cfa5/apidocs/src-html/org/apache/hadoop/hbase/io/crypto/Encryption.html ---------------------------------------------------------------------- diff --git a/apidocs/src-html/org/apache/hadoop/hbase/io/crypto/Encryption.html b/apidocs/src-html/org/apache/hadoop/hbase/io/crypto/Encryption.html index 331a8cb..3ce8f8a 100644 --- a/apidocs/src-html/org/apache/hadoop/hbase/io/crypto/Encryption.html +++ b/apidocs/src-html/org/apache/hadoop/hbase/io/crypto/Encryption.html @@ -35,558 +35,557 @@ <span class="sourceLineNo">027</span>import java.util.Arrays;<a name="line.27"></a> <span class="sourceLineNo">028</span>import java.util.Map;<a name="line.28"></a> <span class="sourceLineNo">029</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.29"></a> -<span class="sourceLineNo">030</span><a name="line.30"></a> -<span class="sourceLineNo">031</span>import javax.crypto.SecretKeyFactory;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import javax.crypto.spec.PBEKeySpec;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import javax.crypto.spec.SecretKeySpec;<a name="line.33"></a> -<span class="sourceLineNo">034</span><a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.commons.io.IOUtils;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.commons.logging.Log;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.commons.logging.LogFactory;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.conf.Configuration;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HConstants;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.util.ReflectionUtils;<a name="line.44"></a> -<span class="sourceLineNo">045</span><a name="line.45"></a> -<span class="sourceLineNo">046</span>/**<a name="line.46"></a> -<span class="sourceLineNo">047</span> * A facade for encryption algorithms and related support.<a name="line.47"></a> -<span class="sourceLineNo">048</span> */<a name="line.48"></a> -<span class="sourceLineNo">049</span>@InterfaceAudience.Public<a name="line.49"></a> -<span class="sourceLineNo">050</span>public final class Encryption {<a name="line.50"></a> -<span class="sourceLineNo">051</span><a name="line.51"></a> -<span class="sourceLineNo">052</span> private static final Log LOG = LogFactory.getLog(Encryption.class);<a name="line.52"></a> -<span class="sourceLineNo">053</span><a name="line.53"></a> -<span class="sourceLineNo">054</span> /**<a name="line.54"></a> -<span class="sourceLineNo">055</span> * Crypto context<a name="line.55"></a> -<span class="sourceLineNo">056</span> */<a name="line.56"></a> -<span class="sourceLineNo">057</span> @InterfaceAudience.Public<a name="line.57"></a> -<span class="sourceLineNo">058</span> public static class Context extends org.apache.hadoop.hbase.io.crypto.Context {<a name="line.58"></a> -<span class="sourceLineNo">059</span><a name="line.59"></a> -<span class="sourceLineNo">060</span> /** The null crypto context */<a name="line.60"></a> -<span class="sourceLineNo">061</span> public static final Context NONE = new Context();<a name="line.61"></a> -<span class="sourceLineNo">062</span><a name="line.62"></a> -<span class="sourceLineNo">063</span> private Context() {<a name="line.63"></a> -<span class="sourceLineNo">064</span> super();<a name="line.64"></a> -<span class="sourceLineNo">065</span> }<a name="line.65"></a> -<span class="sourceLineNo">066</span><a name="line.66"></a> -<span class="sourceLineNo">067</span> private Context(Configuration conf) {<a name="line.67"></a> -<span class="sourceLineNo">068</span> super(conf);<a name="line.68"></a> -<span class="sourceLineNo">069</span> }<a name="line.69"></a> -<span class="sourceLineNo">070</span><a name="line.70"></a> -<span class="sourceLineNo">071</span> @Override<a name="line.71"></a> -<span class="sourceLineNo">072</span> public Context setCipher(Cipher cipher) {<a name="line.72"></a> -<span class="sourceLineNo">073</span> super.setCipher(cipher);<a name="line.73"></a> -<span class="sourceLineNo">074</span> return this;<a name="line.74"></a> -<span class="sourceLineNo">075</span> }<a name="line.75"></a> -<span class="sourceLineNo">076</span><a name="line.76"></a> -<span class="sourceLineNo">077</span> @Override<a name="line.77"></a> -<span class="sourceLineNo">078</span> public Context setKey(Key key) {<a name="line.78"></a> -<span class="sourceLineNo">079</span> super.setKey(key);<a name="line.79"></a> -<span class="sourceLineNo">080</span> return this;<a name="line.80"></a> -<span class="sourceLineNo">081</span> }<a name="line.81"></a> -<span class="sourceLineNo">082</span><a name="line.82"></a> -<span class="sourceLineNo">083</span> public Context setKey(byte[] key) {<a name="line.83"></a> -<span class="sourceLineNo">084</span> super.setKey(new SecretKeySpec(key, getCipher().getName()));<a name="line.84"></a> -<span class="sourceLineNo">085</span> return this;<a name="line.85"></a> -<span class="sourceLineNo">086</span> }<a name="line.86"></a> -<span class="sourceLineNo">087</span> }<a name="line.87"></a> -<span class="sourceLineNo">088</span><a name="line.88"></a> -<span class="sourceLineNo">089</span> public static Context newContext() {<a name="line.89"></a> -<span class="sourceLineNo">090</span> return new Context();<a name="line.90"></a> -<span class="sourceLineNo">091</span> }<a name="line.91"></a> -<span class="sourceLineNo">092</span><a name="line.92"></a> -<span class="sourceLineNo">093</span> public static Context newContext(Configuration conf) {<a name="line.93"></a> -<span class="sourceLineNo">094</span> return new Context(conf);<a name="line.94"></a> -<span class="sourceLineNo">095</span> }<a name="line.95"></a> -<span class="sourceLineNo">096</span><a name="line.96"></a> -<span class="sourceLineNo">097</span> // Prevent instantiation<a name="line.97"></a> -<span class="sourceLineNo">098</span> private Encryption() {<a name="line.98"></a> -<span class="sourceLineNo">099</span> super();<a name="line.99"></a> -<span class="sourceLineNo">100</span> }<a name="line.100"></a> -<span class="sourceLineNo">101</span><a name="line.101"></a> -<span class="sourceLineNo">102</span> /**<a name="line.102"></a> -<span class="sourceLineNo">103</span> * Get an cipher given a name<a name="line.103"></a> -<span class="sourceLineNo">104</span> * @param name the cipher name<a name="line.104"></a> -<span class="sourceLineNo">105</span> * @return the cipher, or null if a suitable one could not be found<a name="line.105"></a> -<span class="sourceLineNo">106</span> */<a name="line.106"></a> -<span class="sourceLineNo">107</span> public static Cipher getCipher(Configuration conf, String name) {<a name="line.107"></a> -<span class="sourceLineNo">108</span> return getCipherProvider(conf).getCipher(name);<a name="line.108"></a> -<span class="sourceLineNo">109</span> }<a name="line.109"></a> -<span class="sourceLineNo">110</span><a name="line.110"></a> -<span class="sourceLineNo">111</span> /**<a name="line.111"></a> -<span class="sourceLineNo">112</span> * Get names of supported encryption algorithms<a name="line.112"></a> -<span class="sourceLineNo">113</span> *<a name="line.113"></a> -<span class="sourceLineNo">114</span> * @return Array of strings, each represents a supported encryption algorithm<a name="line.114"></a> -<span class="sourceLineNo">115</span> */<a name="line.115"></a> -<span class="sourceLineNo">116</span> public static String[] getSupportedCiphers() {<a name="line.116"></a> -<span class="sourceLineNo">117</span> return getSupportedCiphers(HBaseConfiguration.create());<a name="line.117"></a> -<span class="sourceLineNo">118</span> }<a name="line.118"></a> -<span class="sourceLineNo">119</span><a name="line.119"></a> -<span class="sourceLineNo">120</span> /**<a name="line.120"></a> -<span class="sourceLineNo">121</span> * Get names of supported encryption algorithms<a name="line.121"></a> -<span class="sourceLineNo">122</span> *<a name="line.122"></a> -<span class="sourceLineNo">123</span> * @return Array of strings, each represents a supported encryption algorithm<a name="line.123"></a> -<span class="sourceLineNo">124</span> */<a name="line.124"></a> -<span class="sourceLineNo">125</span> public static String[] getSupportedCiphers(Configuration conf) {<a name="line.125"></a> -<span class="sourceLineNo">126</span> return getCipherProvider(conf).getSupportedCiphers();<a name="line.126"></a> -<span class="sourceLineNo">127</span> }<a name="line.127"></a> -<span class="sourceLineNo">128</span><a name="line.128"></a> -<span class="sourceLineNo">129</span> /**<a name="line.129"></a> -<span class="sourceLineNo">130</span> * Return the MD5 digest of the concatenation of the supplied arguments.<a name="line.130"></a> -<span class="sourceLineNo">131</span> */<a name="line.131"></a> -<span class="sourceLineNo">132</span> public static byte[] hash128(String... args) {<a name="line.132"></a> -<span class="sourceLineNo">133</span> byte[] result = new byte[16];<a name="line.133"></a> -<span class="sourceLineNo">134</span> try {<a name="line.134"></a> -<span class="sourceLineNo">135</span> MessageDigest md = MessageDigest.getInstance("MD5");<a name="line.135"></a> -<span class="sourceLineNo">136</span> for (String arg: args) {<a name="line.136"></a> -<span class="sourceLineNo">137</span> md.update(Bytes.toBytes(arg));<a name="line.137"></a> -<span class="sourceLineNo">138</span> }<a name="line.138"></a> -<span class="sourceLineNo">139</span> md.digest(result, 0, result.length);<a name="line.139"></a> -<span class="sourceLineNo">140</span> return result;<a name="line.140"></a> -<span class="sourceLineNo">141</span> } catch (NoSuchAlgorithmException e) {<a name="line.141"></a> -<span class="sourceLineNo">142</span> throw new RuntimeException(e);<a name="line.142"></a> -<span class="sourceLineNo">143</span> } catch (DigestException e) {<a name="line.143"></a> -<span class="sourceLineNo">144</span> throw new RuntimeException(e);<a name="line.144"></a> -<span class="sourceLineNo">145</span> }<a name="line.145"></a> -<span class="sourceLineNo">146</span> }<a name="line.146"></a> -<span class="sourceLineNo">147</span><a name="line.147"></a> -<span class="sourceLineNo">148</span> /**<a name="line.148"></a> -<span class="sourceLineNo">149</span> * Return the MD5 digest of the concatenation of the supplied arguments.<a name="line.149"></a> -<span class="sourceLineNo">150</span> */<a name="line.150"></a> -<span class="sourceLineNo">151</span> public static byte[] hash128(byte[]... args) {<a name="line.151"></a> -<span class="sourceLineNo">152</span> byte[] result = new byte[16];<a name="line.152"></a> -<span class="sourceLineNo">153</span> try {<a name="line.153"></a> -<span class="sourceLineNo">154</span> MessageDigest md = MessageDigest.getInstance("MD5");<a name="line.154"></a> -<span class="sourceLineNo">155</span> for (byte[] arg: args) {<a name="line.155"></a> -<span class="sourceLineNo">156</span> md.update(arg);<a name="line.156"></a> -<span class="sourceLineNo">157</span> }<a name="line.157"></a> -<span class="sourceLineNo">158</span> md.digest(result, 0, result.length);<a name="line.158"></a> -<span class="sourceLineNo">159</span> return result;<a name="line.159"></a> -<span class="sourceLineNo">160</span> } catch (NoSuchAlgorithmException e) {<a name="line.160"></a> -<span class="sourceLineNo">161</span> throw new RuntimeException(e);<a name="line.161"></a> -<span class="sourceLineNo">162</span> } catch (DigestException e) {<a name="line.162"></a> -<span class="sourceLineNo">163</span> throw new RuntimeException(e);<a name="line.163"></a> -<span class="sourceLineNo">164</span> }<a name="line.164"></a> -<span class="sourceLineNo">165</span> }<a name="line.165"></a> -<span class="sourceLineNo">166</span><a name="line.166"></a> -<span class="sourceLineNo">167</span> /**<a name="line.167"></a> -<span class="sourceLineNo">168</span> * Return the SHA-256 digest of the concatenation of the supplied arguments.<a name="line.168"></a> -<span class="sourceLineNo">169</span> */<a name="line.169"></a> -<span class="sourceLineNo">170</span> public static byte[] hash256(String... args) {<a name="line.170"></a> -<span class="sourceLineNo">171</span> byte[] result = new byte[32];<a name="line.171"></a> -<span class="sourceLineNo">172</span> try {<a name="line.172"></a> -<span class="sourceLineNo">173</span> MessageDigest md = MessageDigest.getInstance("SHA-256");<a name="line.173"></a> -<span class="sourceLineNo">174</span> for (String arg: args) {<a name="line.174"></a> -<span class="sourceLineNo">175</span> md.update(Bytes.toBytes(arg));<a name="line.175"></a> -<span class="sourceLineNo">176</span> }<a name="line.176"></a> -<span class="sourceLineNo">177</span> md.digest(result, 0, result.length);<a name="line.177"></a> -<span class="sourceLineNo">178</span> return result;<a name="line.178"></a> -<span class="sourceLineNo">179</span> } catch (NoSuchAlgorithmException e) {<a name="line.179"></a> -<span class="sourceLineNo">180</span> throw new RuntimeException(e);<a name="line.180"></a> -<span class="sourceLineNo">181</span> } catch (DigestException e) {<a name="line.181"></a> -<span class="sourceLineNo">182</span> throw new RuntimeException(e);<a name="line.182"></a> -<span class="sourceLineNo">183</span> }<a name="line.183"></a> -<span class="sourceLineNo">184</span> }<a name="line.184"></a> -<span class="sourceLineNo">185</span><a name="line.185"></a> -<span class="sourceLineNo">186</span> /**<a name="line.186"></a> -<span class="sourceLineNo">187</span> * Return the SHA-256 digest of the concatenation of the supplied arguments.<a name="line.187"></a> -<span class="sourceLineNo">188</span> */<a name="line.188"></a> -<span class="sourceLineNo">189</span> public static byte[] hash256(byte[]... args) {<a name="line.189"></a> -<span class="sourceLineNo">190</span> byte[] result = new byte[32];<a name="line.190"></a> -<span class="sourceLineNo">191</span> try {<a name="line.191"></a> -<span class="sourceLineNo">192</span> MessageDigest md = MessageDigest.getInstance("SHA-256");<a name="line.192"></a> -<span class="sourceLineNo">193</span> for (byte[] arg: args) {<a name="line.193"></a> -<span class="sourceLineNo">194</span> md.update(arg);<a name="line.194"></a> -<span class="sourceLineNo">195</span> }<a name="line.195"></a> -<span class="sourceLineNo">196</span> md.digest(result, 0, result.length);<a name="line.196"></a> -<span class="sourceLineNo">197</span> return result;<a name="line.197"></a> -<span class="sourceLineNo">198</span> } catch (NoSuchAlgorithmException e) {<a name="line.198"></a> -<span class="sourceLineNo">199</span> throw new RuntimeException(e);<a name="line.199"></a> -<span class="sourceLineNo">200</span> } catch (DigestException e) {<a name="line.200"></a> -<span class="sourceLineNo">201</span> throw new RuntimeException(e);<a name="line.201"></a> -<span class="sourceLineNo">202</span> }<a name="line.202"></a> -<span class="sourceLineNo">203</span> }<a name="line.203"></a> -<span class="sourceLineNo">204</span><a name="line.204"></a> -<span class="sourceLineNo">205</span> /**<a name="line.205"></a> -<span class="sourceLineNo">206</span> * Return a 128 bit key derived from the concatenation of the supplied<a name="line.206"></a> -<span class="sourceLineNo">207</span> * arguments using PBKDF2WithHmacSHA1 at 10,000 iterations.<a name="line.207"></a> -<span class="sourceLineNo">208</span> * <a name="line.208"></a> -<span class="sourceLineNo">209</span> */<a name="line.209"></a> -<span class="sourceLineNo">210</span> public static byte[] pbkdf128(String... args) {<a name="line.210"></a> -<span class="sourceLineNo">211</span> byte[] salt = new byte[128];<a name="line.211"></a> -<span class="sourceLineNo">212</span> Bytes.random(salt);<a name="line.212"></a> -<span class="sourceLineNo">213</span> StringBuilder sb = new StringBuilder();<a name="line.213"></a> -<span class="sourceLineNo">214</span> for (String s: args) {<a name="line.214"></a> -<span class="sourceLineNo">215</span> sb.append(s);<a name="line.215"></a> -<span class="sourceLineNo">216</span> }<a name="line.216"></a> -<span class="sourceLineNo">217</span> PBEKeySpec spec = new PBEKeySpec(sb.toString().toCharArray(), salt, 10000, 128);<a name="line.217"></a> -<span class="sourceLineNo">218</span> try {<a name="line.218"></a> -<span class="sourceLineNo">219</span> return SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1")<a name="line.219"></a> -<span class="sourceLineNo">220</span> .generateSecret(spec).getEncoded();<a name="line.220"></a> -<span class="sourceLineNo">221</span> } catch (NoSuchAlgorithmException e) {<a name="line.221"></a> -<span class="sourceLineNo">222</span> throw new RuntimeException(e);<a name="line.222"></a> -<span class="sourceLineNo">223</span> } catch (InvalidKeySpecException e) {<a name="line.223"></a> -<span class="sourceLineNo">224</span> throw new RuntimeException(e);<a name="line.224"></a> -<span class="sourceLineNo">225</span> }<a name="line.225"></a> -<span class="sourceLineNo">226</span> }<a name="line.226"></a> -<span class="sourceLineNo">227</span><a name="line.227"></a> -<span class="sourceLineNo">228</span> /**<a name="line.228"></a> -<span class="sourceLineNo">229</span> * Return a 128 bit key derived from the concatenation of the supplied<a name="line.229"></a> -<span class="sourceLineNo">230</span> * arguments using PBKDF2WithHmacSHA1 at 10,000 iterations.<a name="line.230"></a> -<span class="sourceLineNo">231</span> * <a name="line.231"></a> -<span class="sourceLineNo">232</span> */<a name="line.232"></a> -<span class="sourceLineNo">233</span> public static byte[] pbkdf128(byte[]... args) {<a name="line.233"></a> -<span class="sourceLineNo">234</span> byte[] salt = new byte[128];<a name="line.234"></a> -<span class="sourceLineNo">235</span> Bytes.random(salt);<a name="line.235"></a> -<span class="sourceLineNo">236</span> StringBuilder sb = new StringBuilder();<a name="line.236"></a> -<span class="sourceLineNo">237</span> for (byte[] b: args) {<a name="line.237"></a> -<span class="sourceLineNo">238</span> sb.append(Arrays.toString(b));<a name="line.238"></a> -<span class="sourceLineNo">239</span> }<a name="line.239"></a> -<span class="sourceLineNo">240</span> PBEKeySpec spec = new PBEKeySpec(sb.toString().toCharArray(), salt, 10000, 128);<a name="line.240"></a> -<span class="sourceLineNo">241</span> try {<a name="line.241"></a> -<span class="sourceLineNo">242</span> return SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1")<a name="line.242"></a> -<span class="sourceLineNo">243</span> .generateSecret(spec).getEncoded();<a name="line.243"></a> -<span class="sourceLineNo">244</span> } catch (NoSuchAlgorithmException e) {<a name="line.244"></a> -<span class="sourceLineNo">245</span> throw new RuntimeException(e);<a name="line.245"></a> -<span class="sourceLineNo">246</span> } catch (InvalidKeySpecException e) {<a name="line.246"></a> -<span class="sourceLineNo">247</span> throw new RuntimeException(e);<a name="line.247"></a> -<span class="sourceLineNo">248</span> }<a name="line.248"></a> -<span class="sourceLineNo">249</span> }<a name="line.249"></a> -<span class="sourceLineNo">250</span><a name="line.250"></a> -<span class="sourceLineNo">251</span> /**<a name="line.251"></a> -<span class="sourceLineNo">252</span> * Encrypt a block of plaintext<a name="line.252"></a> -<span class="sourceLineNo">253</span> * <p><a name="line.253"></a> -<span class="sourceLineNo">254</span> * The encryptor's state will be finalized. It should be reinitialized or<a name="line.254"></a> -<span class="sourceLineNo">255</span> * returned to the pool.<a name="line.255"></a> -<span class="sourceLineNo">256</span> * @param out ciphertext<a name="line.256"></a> -<span class="sourceLineNo">257</span> * @param src plaintext<a name="line.257"></a> -<span class="sourceLineNo">258</span> * @param offset<a name="line.258"></a> -<span class="sourceLineNo">259</span> * @param length<a name="line.259"></a> -<span class="sourceLineNo">260</span> * @param e<a name="line.260"></a> -<span class="sourceLineNo">261</span> * @throws IOException<a name="line.261"></a> -<span class="sourceLineNo">262</span> */<a name="line.262"></a> -<span class="sourceLineNo">263</span> public static void encrypt(OutputStream out, byte[] src, int offset,<a name="line.263"></a> -<span class="sourceLineNo">264</span> int length, Encryptor e) throws IOException {<a name="line.264"></a> -<span class="sourceLineNo">265</span> OutputStream cout = e.createEncryptionStream(out);<a name="line.265"></a> -<span class="sourceLineNo">266</span> try {<a name="line.266"></a> -<span class="sourceLineNo">267</span> cout.write(src, offset, length);<a name="line.267"></a> -<span class="sourceLineNo">268</span> } finally {<a name="line.268"></a> -<span class="sourceLineNo">269</span> cout.close();<a name="line.269"></a> -<span class="sourceLineNo">270</span> }<a name="line.270"></a> -<span class="sourceLineNo">271</span> }<a name="line.271"></a> -<span class="sourceLineNo">272</span><a name="line.272"></a> -<span class="sourceLineNo">273</span> /**<a name="line.273"></a> -<span class="sourceLineNo">274</span> * Encrypt a block of plaintext<a name="line.274"></a> -<span class="sourceLineNo">275</span> * @param out ciphertext<a name="line.275"></a> -<span class="sourceLineNo">276</span> * @param src plaintext<a name="line.276"></a> -<span class="sourceLineNo">277</span> * @param offset<a name="line.277"></a> -<span class="sourceLineNo">278</span> * @param length<a name="line.278"></a> -<span class="sourceLineNo">279</span> * @param context<a name="line.279"></a> -<span class="sourceLineNo">280</span> * @param iv<a name="line.280"></a> -<span class="sourceLineNo">281</span> * @throws IOException<a name="line.281"></a> -<span class="sourceLineNo">282</span> */<a name="line.282"></a> -<span class="sourceLineNo">283</span> public static void encrypt(OutputStream out, byte[] src, int offset,<a name="line.283"></a> -<span class="sourceLineNo">284</span> int length, Context context, byte[] iv) throws IOException {<a name="line.284"></a> -<span class="sourceLineNo">285</span> Encryptor e = context.getCipher().getEncryptor();<a name="line.285"></a> -<span class="sourceLineNo">286</span> e.setKey(context.getKey());<a name="line.286"></a> -<span class="sourceLineNo">287</span> e.setIv(iv); // can be null<a name="line.287"></a> -<span class="sourceLineNo">288</span> e.reset();<a name="line.288"></a> -<span class="sourceLineNo">289</span> encrypt(out, src, offset, length, e);<a name="line.289"></a> -<span class="sourceLineNo">290</span> }<a name="line.290"></a> -<span class="sourceLineNo">291</span><a name="line.291"></a> -<span class="sourceLineNo">292</span> /**<a name="line.292"></a> -<span class="sourceLineNo">293</span> * Encrypt a stream of plaintext given an encryptor<a name="line.293"></a> -<span class="sourceLineNo">294</span> * <p><a name="line.294"></a> -<span class="sourceLineNo">295</span> * The encryptor's state will be finalized. 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// can be null<a name="line.411"></a> -<span class="sourceLineNo">412</span> decrypt(out, in, outLen, d);<a name="line.412"></a> -<span class="sourceLineNo">413</span> }<a name="line.413"></a> -<span class="sourceLineNo">414</span><a name="line.414"></a> -<span class="sourceLineNo">415</span> /**<a name="line.415"></a> -<span class="sourceLineNo">416</span> * Resolves a key for the given subject<a name="line.416"></a> -<span class="sourceLineNo">417</span> * @param subject<a name="line.417"></a> -<span class="sourceLineNo">418</span> * @param conf<a name="line.418"></a> -<span class="sourceLineNo">419</span> * @return a key for the given subject<a name="line.419"></a> -<span class="sourceLineNo">420</span> * @throws IOException if the key is not found<a name="line.420"></a> -<span class="sourceLineNo">421</span> */<a name="line.421"></a> -<span class="sourceLineNo">422</span> public static Key getSecretKeyForSubject(String subject, Configuration conf)<a name="line.422"></a> -<span class="sourceLineNo">423</span> throws IOException {<a name="line.423"></a> -<span class="sourceLineNo">424</span> KeyProvider provider = (KeyProvider)getKeyProvider(conf);<a name="line.424"></a> -<span class="sourceLineNo">425</span> if (provider != null) try {<a name="line.425"></a> -<span class="sourceLineNo">426</span> Key[] keys = provider.getKeys(new String[] { subject });<a name="line.426"></a> -<span class="sourceLineNo">427</span> if (keys != null && keys.length > 0) {<a name="line.427"></a> -<span class="sourceLineNo">428</span> return keys[0];<a name="line.428"></a> -<span class="sourceLineNo">429</span> }<a name="line.429"></a> -<span class="sourceLineNo">430</span> } catch (Exception e) {<a name="line.430"></a> -<span class="sourceLineNo">431</span> throw new IOException(e);<a name="line.431"></a> -<span class="sourceLineNo">432</span> }<a name="line.432"></a> -<span class="sourceLineNo">433</span> throw new IOException("No key found for subject '" + subject + "'");<a name="line.433"></a> -<span class="sourceLineNo">434</span> }<a name="line.434"></a> -<span class="sourceLineNo">435</span><a name="line.435"></a> -<span class="sourceLineNo">436</span> /**<a name="line.436"></a> -<span class="sourceLineNo">437</span> * Encrypts a block of plaintext with the symmetric key resolved for the given subject<a name="line.437"></a> -<span class="sourceLineNo">438</span> * @param out ciphertext<a name="line.438"></a> -<span class="sourceLineNo">439</span> * @param in plaintext<a name="line.439"></a> -<span class="sourceLineNo">440</span> * @param conf configuration<a name="line.440"></a> -<span class="sourceLineNo">441</span> * @param cipher the encryption algorithm<a name="line.441"></a> -<span class="sourceLineNo">442</span> * @param iv the initialization vector, can be null<a name="line.442"></a> -<span class="sourceLineNo">443</span> * @throws IOException<a name="line.443"></a> -<span class="sourceLineNo">444</span> */<a name="line.444"></a> -<span class="sourceLineNo">445</span> public static void encryptWithSubjectKey(OutputStream out, InputStream in,<a name="line.445"></a> -<span class="sourceLineNo">446</span> String subject, Configuration conf, Cipher cipher, byte[] iv)<a name="line.446"></a> -<span class="sourceLineNo">447</span> throws IOException {<a name="line.447"></a> -<span class="sourceLineNo">448</span> Key key = getSecretKeyForSubject(subject, conf);<a name="line.448"></a> -<span class="sourceLineNo">449</span> if (key == null) {<a name="line.449"></a> -<span class="sourceLineNo">450</span> throw new IOException("No key found for subject '" + subject + "'");<a name="line.450"></a> -<span class="sourceLineNo">451</span> }<a name="line.451"></a> -<span class="sourceLineNo">452</span> Encryptor e = cipher.getEncryptor();<a name="line.452"></a> -<span class="sourceLineNo">453</span> e.setKey(key);<a name="line.453"></a> -<span class="sourceLineNo">454</span> e.setIv(iv); // can be null<a name="line.454"></a> -<span class="sourceLineNo">455</span> encrypt(out, in, e);<a name="line.455"></a> -<span class="sourceLineNo">456</span> }<a name="line.456"></a> -<span class="sourceLineNo">457</span><a name="line.457"></a> -<span class="sourceLineNo">458</span> /**<a name="line.458"></a> -<span class="sourceLineNo">459</span> * Decrypts a block of ciphertext with the symmetric key resolved for the given subject<a name="line.459"></a> -<span class="sourceLineNo">460</span> * @param out plaintext<a name="line.460"></a> -<span class="sourceLineNo">461</span> * @param in ciphertext<a name="line.461"></a> -<span class="sourceLineNo">462</span> * @param outLen the expected plaintext length<a name="line.462"></a> -<span class="sourceLineNo">463</span> * @param subject the subject's key alias<a name="line.463"></a> -<span class="sourceLineNo">464</span> * @param conf configuration<a name="line.464"></a> -<span class="sourceLineNo">465</span> * @param cipher the encryption algorithm<a name="line.465"></a> -<span class="sourceLineNo">466</span> * @param iv the initialization vector, can be null<a name="line.466"></a> -<span class="sourceLineNo">467</span> * @throws IOException<a name="line.467"></a> -<span class="sourceLineNo">468</span> */<a name="line.468"></a> -<span class="sourceLineNo">469</span> public static void decryptWithSubjectKey(OutputStream out, InputStream in, int outLen,<a name="line.469"></a> -<span class="sourceLineNo">470</span> String subject, Configuration conf, Cipher cipher, byte[] iv) throws IOException {<a name="line.470"></a> -<span class="sourceLineNo">471</span> Key key = getSecretKeyForSubject(subject, conf);<a name="line.471"></a> -<span class="sourceLineNo">472</span> if (key == null) {<a name="line.472"></a> -<span class="sourceLineNo">473</span> throw new IOException("No key found for subject '" + subject + "'");<a name="line.473"></a> -<span class="sourceLineNo">474</span> }<a name="line.474"></a> -<span class="sourceLineNo">475</span> Decryptor d = cipher.getDecryptor();<a name="line.475"></a> -<span class="sourceLineNo">476</span> d.setKey(key);<a name="line.476"></a> -<span class="sourceLineNo">477</span> d.setIv(iv); // can be null<a name="line.477"></a> -<span class="sourceLineNo">478</span> try {<a name="line.478"></a> -<span class="sourceLineNo">479</span> decrypt(out, in, outLen, d);<a name="line.479"></a> -<span class="sourceLineNo">480</span> } catch (IOException e) {<a name="line.480"></a> -<span class="sourceLineNo">481</span> // If the current cipher algorithm fails to unwrap, try the alternate cipher algorithm, if one<a name="line.481"></a> -<span class="sourceLineNo">482</span> // is configured<a name="line.482"></a> -<span class="sourceLineNo">483</span> String alternateAlgorithm = conf.get(HConstants.CRYPTO_ALTERNATE_KEY_ALGORITHM_CONF_KEY);<a name="line.483"></a> -<span class="sourceLineNo">484</span> if (alternateAlgorithm != null) {<a name="line.484"></a> -<span class="sourceLineNo">485</span> if (LOG.isDebugEnabled()) {<a name="line.485"></a> -<span class="sourceLineNo">486</span> LOG.debug("Unable to decrypt data with current cipher algorithm '"<a name="line.486"></a> -<span class="sourceLineNo">487</span> + conf.get(HConstants.CRYPTO_KEY_ALGORITHM_CONF_KEY, HConstants.CIPHER_AES)<a name="line.487"></a> -<span class="sourceLineNo">488</span> + "'. Trying with the alternate cipher algorithm '" + alternateAlgorithm<a name="line.488"></a> -<span class="sourceLineNo">489</span> + "' configured.");<a name="line.489"></a> -<span class="sourceLineNo">490</span> }<a name="line.490"></a> -<span class="sourceLineNo">491</span> Cipher alterCipher = Encryption.getCipher(conf, alternateAlgorithm);<a name="line.491"></a> -<span class="sourceLineNo">492</span> if (alterCipher == null) {<a name="line.492"></a> -<span class="sourceLineNo">493</span> throw new RuntimeException("Cipher '" + alternateAlgorithm + "' not available");<a name="line.493"></a> -<span class="sourceLineNo">494</span> }<a name="line.494"></a> -<span class="sourceLineNo">495</span> d = alterCipher.getDecryptor();<a name="line.495"></a> -<span class="sourceLineNo">496</span> d.setKey(key);<a name="line.496"></a> -<span class="sourceLineNo">497</span> d.setIv(iv); // can be null<a name="line.497"></a> -<span class="sourceLineNo">498</span> decrypt(out, in, outLen, d);<a name="line.498"></a> -<span class="sourceLineNo">499</span> } else {<a name="line.499"></a> -<span class="sourceLineNo">500</span> throw new IOException(e);<a name="line.500"></a> -<span class="sourceLineNo">501</span> }<a name="line.501"></a> -<span class="sourceLineNo">502</span> }<a name="line.502"></a> -<span class="sourceLineNo">503</span> }<a name="line.503"></a> -<span class="sourceLineNo">504</span><a name="line.504"></a> -<span class="sourceLineNo">505</span> private static ClassLoader getClassLoaderForClass(Class<?> c) {<a name="line.505"></a> -<span class="sourceLineNo">506</span> ClassLoader cl = Thread.currentThread().getContextClassLoader();<a name="line.506"></a> -<span class="sourceLineNo">507</span> if (cl == null) {<a name="line.507"></a> -<span class="sourceLineNo">508</span> cl = c.getClassLoader();<a name="line.508"></a> -<span class="sourceLineNo">509</span> }<a name="line.509"></a> -<span class="sourceLineNo">510</span> if (cl == null) {<a name="line.510"></a> 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DefaultCipherProvider.class.getName());<a name="line.521"></a> -<span class="sourceLineNo">522</span> try {<a name="line.522"></a> -<span class="sourceLineNo">523</span> CipherProvider provider = (CipherProvider)<a name="line.523"></a> -<span class="sourceLineNo">524</span> ReflectionUtils.newInstance(getClassLoaderForClass(CipherProvider.class)<a name="line.524"></a> -<span class="sourceLineNo">525</span> .loadClass(providerClassName),<a name="line.525"></a> -<span class="sourceLineNo">526</span> conf);<a name="line.526"></a> -<span class="sourceLineNo">527</span> return provider;<a name="line.527"></a> -<span class="sourceLineNo">528</span> } catch (Exception e) {<a name="line.528"></a> -<span class="sourceLineNo">529</span> throw new RuntimeException(e);<a name="line.529"></a> -<span class="sourceLineNo">530</span> }<a name="line.530"></a> -<span class="sourceLineNo">531</span> }<a name="line.531"></a> -<span class="sourceLineNo">532</span><a name="line.532"></a> -<span class="sourceLineNo">533</span> static final Map<Pair<String,String>,KeyProvider> keyProviderCache = new ConcurrentHashMap<>();<a name="line.533"></a> -<span class="sourceLineNo">534</span><a name="line.534"></a> -<span class="sourceLineNo">535</span> public static KeyProvider getKeyProvider(Configuration conf) {<a name="line.535"></a> -<span class="sourceLineNo">536</span> String providerClassName = conf.get(HConstants.CRYPTO_KEYPROVIDER_CONF_KEY,<a name="line.536"></a> -<span class="sourceLineNo">537</span> KeyStoreKeyProvider.class.getName());<a name="line.537"></a> -<span class="sourceLineNo">538</span> String providerParameters = conf.get(HConstants.CRYPTO_KEYPROVIDER_PARAMETERS_KEY, "");<a name="line.538"></a> -<span class="sourceLineNo">539</span> try {<a name="line.539"></a> -<span class="sourceLineNo">540</span> Pair<String,String> providerCacheKey = new Pair<>(providerClassName,<a name="line.540"></a> -<span class="sourceLineNo">541</span> providerParameters);<a name="line.541"></a> -<span class="sourceLineNo">542</span> KeyProvider provider = keyProviderCache.get(providerCacheKey);<a name="line.542"></a> -<span class="sourceLineNo">543</span> if (provider != null) {<a name="line.543"></a> -<span class="sourceLineNo">544</span> return provider;<a name="line.544"></a> -<span class="sourceLineNo">545</span> }<a name="line.545"></a> -<span class="sourceLineNo">546</span> provider = (KeyProvider) ReflectionUtils.newInstance(<a name="line.546"></a> -<span class="sourceLineNo">547</span> getClassLoaderForClass(KeyProvider.class).loadClass(providerClassName),<a name="line.547"></a> -<span class="sourceLineNo">548</span> conf);<a name="line.548"></a> -<span class="sourceLineNo">549</span> provider.init(providerParameters);<a name="line.549"></a> -<span class="sourceLineNo">550</span> if (LOG.isDebugEnabled()) {<a name="line.550"></a> -<span class="sourceLineNo">551</span> LOG.debug("Installed " + providerClassName + " into key provider cache");<a name="line.551"></a> -<span class="sourceLineNo">552</span> }<a name="line.552"></a> -<span class="sourceLineNo">553</span> keyProviderCache.put(providerCacheKey, provider);<a name="line.553"></a> -<span class="sourceLineNo">554</span> return provider;<a name="line.554"></a> -<span class="sourceLineNo">555</span> } catch (Exception e) {<a name="line.555"></a> -<span class="sourceLineNo">556</span> throw new RuntimeException(e);<a name="line.556"></a> -<span class="sourceLineNo">557</span> }<a name="line.557"></a> -<span class="sourceLineNo">558</span> }<a name="line.558"></a> -<span class="sourceLineNo">559</span><a name="line.559"></a> -<span class="sourceLineNo">560</span> public static void incrementIv(byte[] iv) {<a name="line.560"></a> -<span class="sourceLineNo">561</span> incrementIv(iv, 1);<a name="line.561"></a> -<span class="sourceLineNo">562</span> }<a name="line.562"></a> -<span class="sourceLineNo">563</span><a name="line.563"></a> -<span class="sourceLineNo">564</span> public static void incrementIv(byte[] iv, int v) {<a name="line.564"></a> -<span class="sourceLineNo">565</span> int length = iv.length;<a name="line.565"></a> -<span class="sourceLineNo">566</span> boolean carry = true;<a name="line.566"></a> -<span class="sourceLineNo">567</span> // TODO: Optimize for v > 1, e.g. 16, 32<a name="line.567"></a> -<span class="sourceLineNo">568</span> do {<a name="line.568"></a> -<span class="sourceLineNo">569</span> for (int i = 0; i < length; i++) {<a name="line.569"></a> -<span class="sourceLineNo">570</span> if (carry) {<a name="line.570"></a> -<span class="sourceLineNo">571</span> iv[i] = (byte) ((iv[i] + 1) & 0xFF);<a name="line.571"></a> -<span class="sourceLineNo">572</span> carry = 0 == iv[i];<a name="line.572"></a> -<span class="sourceLineNo">573</span> } else {<a name="line.573"></a> -<span class="sourceLineNo">574</span> break;<a name="line.574"></a> -<span class="sourceLineNo">575</span> }<a name="line.575"></a> -<span class="sourceLineNo">576</span> }<a name="line.576"></a> -<span class="sourceLineNo">577</span> v--;<a name="line.577"></a> -<span class="sourceLineNo">578</span> } while (v > 0);<a name="line.578"></a> -<span class="sourceLineNo">579</span> }<a name="line.579"></a> -<span class="sourceLineNo">580</span><a name="line.580"></a> -<span class="sourceLineNo">581</span>}<a name="line.581"></a> +<span class="sourceLineNo">030</span>import javax.crypto.SecretKeyFactory;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import javax.crypto.spec.PBEKeySpec;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import javax.crypto.spec.SecretKeySpec;<a name="line.32"></a> +<span class="sourceLineNo">033</span><a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.commons.io.IOUtils;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.commons.logging.Log;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.commons.logging.LogFactory;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.conf.Configuration;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.HConstants;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.util.ReflectionUtils;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.43"></a> +<span class="sourceLineNo">044</span><a name="line.44"></a> +<span class="sourceLineNo">045</span>/**<a name="line.45"></a> +<span class="sourceLineNo">046</span> * A facade for encryption algorithms and related support.<a name="line.46"></a> +<span class="sourceLineNo">047</span> */<a name="line.47"></a> +<span class="sourceLineNo">048</span>@InterfaceAudience.Public<a name="line.48"></a> +<span class="sourceLineNo">049</span>public final class Encryption {<a name="line.49"></a> +<span class="sourceLineNo">050</span><a name="line.50"></a> +<span class="sourceLineNo">051</span> private static final Log LOG = LogFactory.getLog(Encryption.class);<a name="line.51"></a> +<span class="sourceLineNo">052</span><a name="line.52"></a> +<span class="sourceLineNo">053</span> /**<a name="line.53"></a> +<span class="sourceLineNo">054</span> * Crypto context<a name="line.54"></a> +<span class="sourceLineNo">055</span> */<a name="line.55"></a> +<span class="sourceLineNo">056</span> @InterfaceAudience.Public<a name="line.56"></a> +<span class="sourceLineNo">057</span> public static class Context extends org.apache.hadoop.hbase.io.crypto.Context {<a name="line.57"></a> +<span class="sourceLineNo">058</span><a name="line.58"></a> +<span class="sourceLineNo">059</span> /** The null crypto context */<a name="line.59"></a> +<span class="sourceLineNo">060</span> public static final Context NONE = new Context();<a name="line.60"></a> +<span class="sourceLineNo">061</span><a name="line.61"></a> +<span class="sourceLineNo">062</span> private Context() {<a name="line.62"></a> +<span class="sourceLineNo">063</span> super();<a name="line.63"></a> +<span class="sourceLineNo">064</span> }<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> private Context(Configuration conf) {<a name="line.66"></a> +<span class="sourceLineNo">067</span> super(conf);<a name="line.67"></a> +<span class="sourceLineNo">068</span> }<a name="line.68"></a> +<span class="sourceLineNo">069</span><a name="line.69"></a> +<span class="sourceLineNo">070</span> @Override<a name="line.70"></a> +<span class="sourceLineNo">071</span> public Context setCipher(Cipher cipher) {<a name="line.71"></a> +<span class="sourceLineNo">072</span> super.setCipher(cipher);<a name="line.72"></a> +<span class="sourceLineNo">073</span> return this;<a name="line.73"></a> +<span class="sourceLineNo">074</span> }<a name="line.74"></a> +<span class="sourceLineNo">075</span><a name="line.75"></a> +<span class="sourceLineNo">076</span> @Override<a name="line.76"></a> +<span class="sourceLineNo">077</span> public Context setKey(Key key) {<a name="line.77"></a> +<span class="sourceLineNo">078</span> super.setKey(key);<a name="line.78"></a> +<span class="sourceLineNo">079</span> return this;<a name="line.79"></a> +<span class="sourceLineNo">080</span> }<a name="line.80"></a> +<span class="sourceLineNo">081</span><a name="line.81"></a> +<span class="sourceLineNo">082</span> public Context setKey(byte[] key) {<a name="line.82"></a> +<span class="sourceLineNo">083</span> super.setKey(new SecretKeySpec(key, getCipher().getName()));<a name="line.83"></a> +<span class="sourceLineNo">084</span> return this;<a name="line.84"></a> +<span class="sourceLineNo">085</span> }<a name="line.85"></a> +<span class="sourceLineNo">086</span> }<a name="line.86"></a> +<span class="sourceLineNo">087</span><a name="line.87"></a> +<span class="sourceLineNo">088</span> public static Context newContext() {<a name="line.88"></a> +<span class="sourceLineNo">089</span> return new Context();<a name="line.89"></a> +<span class="sourceLineNo">090</span> }<a name="line.90"></a> +<span class="sourceLineNo">091</span><a name="line.91"></a> +<span class="sourceLineNo">092</span> public static Context newContext(Configuration conf) {<a name="line.92"></a> +<span class="sourceLineNo">093</span> return new Context(conf);<a name="line.93"></a> +<span class="sourceLineNo">094</span> }<a name="line.94"></a> +<span class="sourceLineNo">095</span><a name="line.95"></a> +<span class="sourceLineNo">096</span> // Prevent instantiation<a name="line.96"></a> +<span class="sourceLineNo">097</span> private Encryption() {<a name="line.97"></a> +<span class="sourceLineNo">098</span> super();<a name="line.98"></a> +<span class="sourceLineNo">099</span> }<a name="line.99"></a> +<span class="sourceLineNo">100</span><a name="line.100"></a> +<span class="sourceLineNo">101</span> /**<a name="line.101"></a> +<span class="sourceLineNo">102</span> * Get an cipher given a name<a name="line.102"></a> +<span class="sourceLineNo">103</span> * @param name the cipher name<a name="line.103"></a> +<span class="sourceLineNo">104</span> * @return the cipher, or null if a suitable one could not be found<a name="line.104"></a> +<span class="sourceLineNo">105</span> */<a name="line.105"></a> +<span class="sourceLineNo">106</span> public static Cipher getCipher(Configuration conf, String name) {<a name="line.106"></a> +<span class="sourceLineNo">107</span> return getCipherProvider(conf).getCipher(name);<a name="line.107"></a> +<span class="sourceLineNo">108</span> }<a name="line.108"></a> +<span class="sourceLineNo">109</span><a name="line.109"></a> +<span class="sourceLineNo">110</span> /**<a name="line.110"></a> +<span class="sourceLineNo">111</span> * Get names of supported encryption algorithms<a name="line.111"></a> +<span class="sourceLineNo">112</span> *<a name="line.112"></a> +<span class="sourceLineNo">113</span> * @return Array of strings, each represents a supported encryption algorithm<a name="line.113"></a> +<span class="sourceLineNo">114</span> */<a name="line.114"></a> +<span class="sourceLineNo">115</span> public static String[] getSupportedCiphers() {<a name="line.115"></a> +<span class="sourceLineNo">116</span> return getSupportedCiphers(HBaseConfiguration.create());<a name="line.116"></a> +<span class="sourceLineNo">117</span> }<a name="line.117"></a> +<span class="sourceLineNo">118</span><a name="line.118"></a> +<span class="sourceLineNo">119</span> /**<a name="line.119"></a> +<span class="sourceLineNo">120</span> * Get names of supported encryption algorithms<a name="line.120"></a> +<span class="sourceLineNo">121</span> *<a name="line.121"></a> +<span class="sourceLineNo">122</span> * @return Array of strings, each represents a supported encryption algorithm<a name="line.122"></a> +<span class="sourceLineNo">123</span> */<a name="line.123"></a> +<span class="sourceLineNo">124</span> public static String[] getSupportedCiphers(Configuration conf) {<a name="line.124"></a> +<span class="sourceLineNo">125</span> return getCipherProvider(conf).getSupportedCiphers();<a name="line.125"></a> +<span class="sourceLineNo">126</span> }<a name="line.126"></a> +<span class="sourceLineNo">127</span><a name="line.127"></a> +<span class="sourceLineNo">128</span> /**<a name="line.128"></a> +<span class="sourceLineNo">129</span> * Return the MD5 digest of the concatenation of the supplied arguments.<a name="line.129"></a> +<span class="sourceLineNo">130</span> */<a name="line.130"></a> +<span class="sourceLineNo">131</span> public static byte[] hash128(String... args) {<a name="line.131"></a> +<span class="sourceLineNo">132</span> byte[] result = new byte[16];<a name="line.132"></a> +<span class="sourceLineNo">133</span> try {<a name="line.133"></a> +<span class="sourceLineNo">134</span> MessageDigest md = MessageDigest.getInstance("MD5");<a name="line.134"></a> +<span class="sourceLineNo">135</span> for (String arg: args) {<a name="line.135"></a> +<span class="sourceLineNo">136</span> md.update(Bytes.toBytes(arg));<a name="line.136"></a> +<span class="sourceLineNo">137</span> }<a name="line.137"></a> +<span class="sourceLineNo">138</span> md.digest(result, 0, result.length);<a name="line.138"></a> +<span class="sourceLineNo">139</span> return result;<a name="line.139"></a> +<span class="sourceLineNo">140</span> } catch (NoSuchAlgorithmException e) {<a name="line.140"></a> +<span class="sourceLineNo">141</span> throw new RuntimeException(e);<a name="line.141"></a> +<span class="sourceLineNo">142</span> } catch (DigestException e) {<a name="line.142"></a> +<span class="sourceLineNo">143</span> throw new RuntimeException(e);<a name="line.143"></a> +<span class="sourceLineNo">144</span> }<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">146</span><a name="line.146"></a> +<span class="sourceLineNo">147</span> /**<a name="line.147"></a> +<span class="sourceLineNo">148</span> * Return the MD5 digest of the concatenation of the supplied arguments.<a name="line.148"></a> +<span class="sourceLineNo">149</span> */<a name="line.149"></a> +<span class="sourceLineNo">150</span> public static byte[] hash128(byte[]... args) {<a name="line.150"></a> +<span class="sourceLineNo">151</span> byte[] result = new byte[16];<a name="line.151"></a> +<span class="sourceLineNo">152</span> try {<a name="line.152"></a> +<span class="sourceLineNo">153</span> MessageDigest md = MessageDigest.getInstance("MD5");<a name="line.153"></a> +<span class="sourceLineNo">154</span> for (byte[] arg: args) {<a name="line.154"></a> +<span class="sourceLineNo">155</span> md.update(arg);<a name="line.155"></a> +<span class="sourceLineNo">156</span> }<a name="line.156"></a> +<span class="sourceLineNo">157</span> md.digest(result, 0, result.length);<a name="line.157"></a> +<span class="sourceLineNo">158</span> return result;<a name="line.158"></a> +<span class="sourceLineNo">159</span> } catch (NoSuchAlgorithmException e) {<a name="line.159"></a> +<span class="sourceLineNo">160</span> throw new RuntimeException(e);<a name="line.160"></a> +<span class="sourceLineNo">161</span> } catch (DigestException e) {<a name="line.161"></a> +<span class="sourceLineNo">162</span> throw new RuntimeException(e);<a name="line.162"></a> +<span class="sourceLineNo">163</span> }<a name="line.163"></a> +<span class="sourceLineNo">164</span> }<a name="line.164"></a> +<span class="sourceLineNo">165</span><a name="line.165"></a> +<span class="sourceLineNo">166</span> /**<a name="line.166"></a> +<span class="sourceLineNo">167</span> * Return the SHA-256 digest of the concatenation of the supplied arguments.<a name="line.167"></a> +<span class="sourceLineNo">168</span> */<a name="line.168"></a> +<span class="sourceLineNo">169</span> public static byte[] hash256(String... args) {<a name="line.169"></a> +<span class="sourceLineNo">170</span> byte[] result = new byte[32];<a name="line.170"></a> +<span class="sourceLineNo">171</span> try {<a name="line.171"></a> +<span class="sourceLineNo">172</span> MessageDigest md = MessageDigest.getInstance("SHA-256");<a name="line.172"></a> +<span class="sourceLineNo">173</span> for (String arg: args) {<a name="line.173"></a> +<span class="sourceLineNo">174</span> md.update(Bytes.toBytes(arg));<a name="line.174"></a> +<span class="sourceLineNo">175</span> }<a name="line.175"></a> +<span class="sourceLineNo">176</span> md.digest(result, 0, result.length);<a name="line.176"></a> +<span class="sourceLineNo">177</span> return result;<a name="line.177"></a> +<span class="sourceLineNo">178</span> } catch (NoSuchAlgorithmException e) {<a name="line.178"></a> +<span class="sourceLineNo">179</span> throw new RuntimeException(e);<a name="line.179"></a> +<span class="sourceLineNo">180</span> } catch (DigestException e) {<a name="line.180"></a> +<span class="sourceLineNo">181</span> throw new RuntimeException(e);<a name="line.181"></a> +<span class="sourceLineNo">182</span> }<a name="line.182"></a> +<span class="sourceLineNo">183</span> }<a name="line.183"></a> +<span class="sourceLineNo">184</span><a name="line.184"></a> +<span class="sourceLineNo">185</span> /**<a name="line.185"></a> +<span class="sourceLineNo">186</span> * Return the SHA-256 digest of the concatenation of the supplied arguments.<a name="line.186"></a> +<span class="sourceLineNo">187</span> */<a name="line.187"></a> +<span class="sourceLineNo">188</span> public static byte[] hash256(byte[]... args) {<a name="line.188"></a> +<span class="sourceLineNo">189</span> byte[] result = new byte[32];<a name="line.189"></a> +<span class="sourceLineNo">190</span> try {<a name="line.190"></a> +<span class="sourceLineNo">191</span> MessageDigest md = MessageDigest.getInstance("SHA-256");<a name="line.191"></a> +<span class="sourceLineNo">192</span> for (byte[] arg: args) {<a name="line.192"></a> +<span class="sourceLineNo">193</span> md.update(arg);<a name="line.193"></a> +<span class="sourceLineNo">194</span> }<a name="line.194"></a> +<span class="sourceLineNo">195</span> md.digest(result, 0, result.length);<a name="line.195"></a> +<span class="sourceLineNo">196</span> return result;<a name="line.196"></a> +<span class="sourceLineNo">197</span> } catch (NoSuchAlgorithmException e) {<a name="line.197"></a> +<span class="sourceLineNo">198</span> throw new RuntimeException(e);<a name="line.198"></a> +<span class="sourceLineNo">199</span> } catch (DigestException e) {<a name="line.199"></a> +<span class="sourceLineNo">200</span> throw new RuntimeException(e);<a name="line.200"></a> +<span class="sourceLineNo">201</span> }<a name="line.201"></a> +<span class="sourceLineNo">202</span> }<a name="line.202"></a> +<span class="sourceLineNo">203</span><a name="line.203"></a> +<span class="sourceLineNo">204</span> /**<a name="line.204"></a> +<span class="sourceLineNo">205</span> * Return a 128 bit key derived from the concatenation of the supplied<a name="line.205"></a> +<span class="sourceLineNo">206</span> * arguments using PBKDF2WithHmacSHA1 at 10,000 iterations.<a name="line.206"></a> +<span class="sourceLineNo">207</span> * <a name="line.207"></a> +<span class="sourceLineNo">208</span> */<a name="line.208"></a> +<span class="sourceLineNo">209</span> public static byte[] pbkdf128(String... args) {<a name="line.209"></a> +<span class="sourceLineNo">210</span> byte[] salt = new byte[128];<a name="line.210"></a> +<span class="sourceLineNo">211</span> Bytes.random(salt);<a name="line.211"></a> +<span class="sourceLineNo">212</span> StringBuilder sb = new StringBuilder();<a name="line.212"></a> +<span class="sourceLineNo">213</span> for (String s: args) {<a name="line.213"></a> +<span class="sourceLineNo">214</span> sb.append(s);<a name="line.214"></a> +<span class="sourceLineNo">215</span> }<a name="line.215"></a> +<span class="sourceLineNo">216</span> PBEKeySpec spec = new PBEKeySpec(sb.toString().toCharArray(), salt, 10000, 128);<a name="line.216"></a> +<span class="sourceLineNo">217</span> try {<a name="line.217"></a> +<span class="sourceLineNo">218</span> return SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1")<a name="line.218"></a> +<span class="sourceLineNo">219</span> .generateSecret(spec).getEncoded();<a name="line.219"></a> +<span class="sourceLineNo">220</span> } catch (NoSuchAlgorithmException e) {<a name="line.220"></a> +<span class="sourceLineNo">221</span> throw new RuntimeException(e);<a name="line.221"></a> +<span class="sourceLineNo">222</span> } catch (InvalidKeySpecException e) {<a name="line.222"></a> +<span class="sourceLineNo">223</span> throw new RuntimeException(e);<a name="line.223"></a> +<span class="sourceLineNo">224</span> }<a name="line.224"></a> +<span class="sourceLineNo">225</span> }<a name="line.225"></a> +<span class="sourceLineNo">226</span><a name="line.226"></a> +<span class="sourceLineNo">227</span> /**<a name="line.227"></a> +<span class="sourceLineNo">228</span> * Return a 128 bit key derived from the concatenation of the supplied<a name="line.228"></a> +<span class="sourceLineNo">229</span> * arguments using PBKDF2WithHmacSHA1 at 10,000 iterations.<a name="line.229"></a> +<span class="sourceLineNo">230</span> * <a name="line.230"></a> +<span class="sourceLineNo">231</span> */<a name="line.231"></a> +<span class="sourceLineNo">232</span> public static byte[] pbkdf128(byte[]... args) {<a name="line.232"></a> +<span class="sourceLineNo">233</span> byte[] salt = new byte[128];<a name="line.233"></a> +<span class="sourceLineNo">234</span> Bytes.random(salt);<a name="line.234"></a> +<span class="sourceLineNo">235</span> StringBuilder sb = new StringBuilder();<a name="line.235"></a> +<span class="sourceLineNo">236</span> for (byte[] b: args) {<a name="line.236"></a> +<span class="sourceLineNo">237</span> sb.append(Arrays.toString(b));<a name="line.237"></a> +<span class="sourceLineNo">238</span> }<a name="line.238"></a> +<span class="sourceLineNo">239</span> PBEKeySpec spec = new PBEKeySpec(sb.toString().toCharArray(), salt, 10000, 128);<a name="line.239"></a> +<span class="sourceLineNo">240</span> try {<a name="line.240"></a> +<span class="sourceLineNo">241</span> return SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1")<a name="line.241"></a> +<span class="sourceLineNo">242</span> .generateSecret(spec).getEncoded();<a name="line.242"></a> +<span class="sourceLineNo">243</span> } catch (NoSuchAlgorithmException e) {<a name="line.243"></a> +<span class="sourceLineNo">244</span> throw new RuntimeException(e);<a name="line.244"></a> +<span class="sourceLineNo">245</span> } catch (InvalidKeySpecException e) {<a name="line.245"></a> +<span class="sourceLineNo">246</span> throw new RuntimeException(e);<a name="line.246"></a> +<span class="sourceLineNo">247</span> }<a name="line.247"></a> +<span class="sourceLineNo">248</span> }<a name="line.248"></a> +<span class="sourceLineNo">249</span><a name="line.249"></a> +<span class="sourceLineNo">250</span> /**<a name="line.250"></a> +<span class="sourceLineNo">251</span> * Encrypt a block of plaintext<a name="line.251"></a> +<span class="sourceLineNo">252</span> * <p><a name="line.252"></a> +<span class="sourceLineNo">253</span> * The encryptor's state will be finalized. It should be reinitialized or<a name="line.253"></a> +<span class="sourceLineNo">254</span> * returned to the pool.<a name="line.254"></a> +<span class="sourceLineNo">255</span> * @param out ciphertext<a name="line.255"></a> +<span class="sourceLineNo">256</span> * @param src plaintext<a name="line.256"></a> +<span class="sourceLineNo">257</span> * @param offset<a name="line.257"></a> +<span class="sourceLineNo">258</span> * @param length<a name="line.258"></a> +<span class="sourceLineNo">259</span> * @param e<a name="line.259"></a> +<span class="sourceLineNo">260</span> * @throws IOException<a name="line.260"></a> +<span class="sourceLineNo">261</span> */<a name="line.261"></a> +<span class="sourceLineNo">262</span> public static void encrypt(OutputStream out, byte[] src, int offset,<a name="line.262"></a> +<span class="sourceLineNo">263</span> int length, Encryptor e) throws IOException {<a name="line.263"></a> +<span class="sourceLineNo">264</span> OutputStream cout = e.createEncryptionStream(out);<a name="line.264"></a> +<span class="sourceLineNo">265</span> try {<a name="line.265"></a> +<span class="sourceLineNo">266</span> cout.write(src, offset, length);<a name="line.266"></a> +<span class="sourceLineNo">267</span> } finally {<a name="line.267"></a> +<span class="sourceLineNo">268</span> cout.close();<a name="line.268"></a> +<span class="sourceLineNo">269</span> }<a name="line.269"></a> +<span class="sourceLineNo">270</span> }<a name="line.270"></a> +<span class="sourceLineNo">271</span><a name="line.271"></a> +<span class="sourceLineNo">272</span> /**<a name="line.272"></a> +<span class="sourceLineNo">273</span> * Encrypt a block of plaintext<a name="line.273"></a> +<span class="sourceLineNo">274</span> * @param out ciphertext<a name="line.274"></a> +<span class="sourceLineNo">275</span> * @param src plaintext<a name="line.275"></a> +<span class="sourceLineNo">276</span> * @param offset<a name="line.276"></a> +<span class="sourceLineNo">277</span> * @param length<a name="line.277"></a> +<span class="sourceLineNo">278</span> * @param context<a name="line.278"></a> +<span class="sourceLineNo">279</span> * @param iv<a name="line.279"></a> +<span class="sourceLineNo">280</span> * @throws IOException<a name="line.280"></a> +<span class="sourceLineNo">281</span> */<a name="line.281"></a> +<span class="sourceLineNo">282</span> public static void encrypt(OutputStream out, byte[] src, int offset,<a name="line.282"></a> +<span class="sourceLineNo">283</span> int length, Context context, byte[] iv) throws IOException {<a name="line.283"></a> +<span class="sourceLineNo">284</span> Encryptor e = context.getCipher().getEncryptor();<a name="line.284"></a> +<span class="sourceLineNo">285</span> e.setKey(context.getKey());<a name="line.285"></a> +<span class="sourceLineNo">286</span> e.setIv(iv); // can be null<a name="line.286"></a> +<span class="sourceLineNo">287</span> e.reset();<a name="line.287"></a> +<span class="sourceLineNo">288</span> encrypt(out, src, offset, length, e);<a name="line.288"></a> +<span class="sourceLineNo">289</span> }<a name="line.289"></a> +<span class="sourceLineNo">290</span><a name="line.290"></a> +<span class="sourceLineNo">291</span> /**<a name="line.291"></a> +<span class="sourceLineNo">292</span> * Encrypt a stream of plaintext given an encryptor<a name="line.292"></a> +<span class="sourceLineNo">293</span> * <p><a name="line.293"></a> +<span class="sourceLineNo">294</span> * The encryptor's state will be finalized. It should be reinitialized or<a name="line.294"></a> +<span class="sourceLineNo">295</span> * returned to the pool.<a name="line.295"></a> +<span class="sourceLineNo">296</span> * @param out ciphertext<a name="line.296"></a> +<span class="sourceLineNo">297</span> * @param in plaintext<a name="line.297"></a> +<span class="sourceLineNo">298</span> * @param e<a name="line.298"></a> +<span class="sourceLineNo">299</span> * @throws IOException<a name="line.299"></a> +<span class="sourceLineNo">300</span> */<a name="line.300"></a> +<span class="sourceLineNo">301</span> public static void encrypt(OutputStream out, InputStream in, Encryptor e)<a name="line.301"></a> +<span class="sourceLineNo">302</span> throws IOException {<a name="line.302"></a> +<span class="sourceLineNo">303</span> OutputStream cout = e.createEncryptionStream(out);<a name="line.303"></a> +<span class="sourceLineNo">304</span> try {<a name="line.304"></a> +<span class="sourceLineNo">305</span> IOUtils.copy(in, cout);<a name="line.305"></a> +<span class="sourceLineNo">306</span> } finally {<a name="line.306"></a> +<span class="sourceLineNo">307</span> cout.close();<a name="line.307"></a> +<span class="sourceLineNo">308</span> }<a name="line.308"></a> +<span class="sourceLineNo">309</span> }<a name="line.309"></a> +<span class="sourceLineNo">310</span><a name="line.310"></a> +<span class="sourceLineNo">311</span> /**<a name="line.311"></a> +<span class="sourceLineNo">312</span> * Encrypt a stream of plaintext given a context and IV<a name="line.312"></a> +<span class="sourceLineNo">313</span> * @param out ciphertext<a name="line.313"></a> +<span class="sourceLineNo">314</span> * @param in plaintet<a name="line.314"></a> +<span class="sourceLineNo">315</span> * @param context<a name="line.315"></a> +<span class="sourceLineNo">316</span> * @param iv<a name="line.316"></a> +<span class="sourceLineNo">317</span> * @throws IOException<a name="line.317"></a> +<span class="sourceLineNo">318</span> */<a name="line.318"></a> +<span class="sourceLineNo">319</span> public static void encrypt(OutputStream out, InputStream in, Context context,<a name="line.319"></a> +<span class="sourceLineNo">320</span> byte[] iv) throws IOException {<a name="line.320"></a> +<span class="sourceLineNo">321</span> Encryptor e = context.getCipher().getEncryptor();<a name="line.321"></a> +<span class="sourceLineNo">322</span> e.setKey(context.getKey());<a name="line.322"></a> +<span class="sourceLineNo">323</span> e.setIv(iv); // can be null<a name="line.323"></a> +<span class="sourceLineNo">324</span> e.reset();<a name="line.324"></a> +<span class="sourceLineNo">325</span> encrypt(out, in, e);<a name="line.325"></a> +<span class="sourceLineNo">326</span> }<a name="line.326"></a> +<span class="sourceLineNo">327</span><a name="line.327"></a> +<span class="sourceLineNo">328</span> /**<a name="line.328"></a> +<span class="sourceLineNo">329</span> * Decrypt a block of ciphertext read in from a stream with the given<a name="line.329"></a> +<span class="sourceLineNo">330</span> * cipher and context<a name="line.330"></a> +<span class="sourceLineNo">331</span> * <p><a name="line.331"></a> +<span class="sourceLineNo">332</span> * The decryptor's state will be finalized. It should be reinitialized or<a name="line.332"></a> +<span class="sourceLineNo">333</span> * returned to the pool.<a name="line.333"></a> +<span class="sourceLineNo">334</span> * @param dest<a name="line.334"></a> +<span class="sourceLineNo">335</span> * @param destOffset<a name="line.335"></a> +<span class="sourceLineNo">336</span> * @param in<a name="line.336"></a> +<span class="sourceLineNo">337</span> * @param destSize<a name="line.337"></a> +<span class="sourceLineNo">338</span> * @param d<a name="line.338"></a> +<span class="sourceLineNo">339</span> * @throws IOException<a name="line.339"></a> +<span class="sourceLineNo">340</span> */<a name="line.340"></a> +<span class="sourceLineNo">341</span> public static void decrypt(byte[] dest, int destOffset, InputStream in,<a name="line.341"></a> +<span class="sourceLineNo">342</span> int destSize, Decryptor d) throws IOException {<a name="line.342"></a> +<span class="sourceLineNo">343</span> InputStream cin = d.createDecryptionStream(in);<a name="line.343"></a> +<span class="sourceLineNo">344</span> try {<a name="line.344"></a> +<span class="sourceLineNo">345</span> IOUtils.readFully(cin, dest, destOffset, destSize);<a name="line.345"></a> +<span class="sourceLineNo">346</span> } finally {<a name="line.346"></a> +<span class="sourceLineNo">347</span> cin.close();<a name="line.347"></a> +<span class="sourceLineNo">348</span> }<a name="line.348"></a> +<span class="sourceLineNo">349</span> }<a name="line.349"></a> +<span class="sourceLineNo">350</span><a name="line.350"></a> +<span class="sourceLineNo">351</span> /**<a name="line.351"></a> +<span class="sourceLineNo">352</span> * Decrypt a block of ciphertext from a stream given a context and IV<a name="line.352"></a> +<span class="sourceLineNo">353</span> * @param dest<a name="line.353"></a> +<span class="sourceLineNo">354</span> * @param destOffset<a name="line.354"></a> +<span class="sourceLineNo">355</span> * @param in<a name="line.355"></a> +<span class="sourceLineNo">356</span> * @param destSize<a name="line.356"></a> +<span class="sourceLineNo">357</span> * @param context<a name="line.357"></a> +<span class="sourceLineNo">358</span> * @param iv<a name="line.358"></a> +<span class="sourceLineNo">359</span> * @throws IOException<a name="line.359"></a> +<span class="sourceLineNo">360</span> */<a name="line.360"></a> +<span class="sourceLineNo">361</span> public static void decrypt(byte[] dest, int destOffset, InputStream in,<a name="line.361"></a> +<span class="sourceLineNo">362</span> int destSize, Context context, byte[] iv) throws IOException {<a name="line.362"></a> +<span class="sourceLineNo">363</span> Decryptor d = context.getCipher().getDecryptor();<a name="line.363"></a> +<span class="sourceLineNo">364</span> d.setKey(context.getKey());<a name="line.364"></a> +<span class="sourceLineNo">365</span> d.setIv(iv); // can be null<a name="line.365"></a> +<span class="sourceLineNo">366</span> decrypt(dest, destOffset, in, destSize, d);<a name="line.366"></a> +<span class="sourceLineNo">367</span> }<a name="line.367"></a> +<span class="sourceLineNo">368</span><a name="line.368"></a> +<span class="sourceLineNo">369</span> /**<a name="line.369"></a> +<span class="sourceLineNo">370</span> * Decrypt a stream of ciphertext given a decryptor<a name="line.370"></a> +<span class="sourceLineNo">371</span> * @param out<a name="line.371"></a> +<span class="sourceLineNo">372</span> * @param in<a name="line.372"></a> +<span class="sourceLineNo">373</span> * @param outLen<a name="line.373"></a> +<span class="sourceLineNo">374</span> * @param d<a name="line.374"></a> +<span class="sourceLineNo">375</span> * @throws IOException<a name="line.375"></a> +<span class="sourceLineNo">376</span> */<a name="line.376"></a> +<span class="sourceLineNo">377</span> public static void decrypt(OutputStream out, InputStream in, int outLen,<a name="line.377"></a> +<span class="sourceLineNo">378</span> Decryptor d) throws IOException {<a name="line.378"></a> +<span class="sourceLineNo">379</span> InputStream cin = d.createDecryptionStream(in);<a name="line.379"></a> +<span class="sourceLineNo">380</span> byte buf[] = new byte[8*1024];<a name="line.380"></a> +<span class="sourceLineNo">381</span> long remaining = outLen;<a name="line.381"></a> +<span class="sourceLineNo">382</span> try {<a name="line.382"></a> +<span class="sourceLineNo">383</span> while (remaining > 0) {<a name="line.383"></a> +<span class="sourceLineNo">384</span> int toRead = (int)(remaining < buf.length ? remaining : buf.length);<a name="line.384"></a> +<span class="sourceLineNo">385</span> int read = cin.read(buf, 0, toRead);<a name="line.385"></a> +<span class="sourceLineNo">386</span> if (read < 0) {<a name="line.386"></a> +<span class="sourceLineNo">387</span> break;<a name="line.387"></a> +<span class="sourceLineNo">388</span> }<a name="line.388"></a> +<span class="sourceLineNo">389</span> out.write(buf, 0, read);<a name="line.389"></a> +<span class="sourceLineNo">390</span> remaining -= read;<a name="line.390"></a> +<span class="sourceLineNo">391</span> }<a name="line.391"></a> +<span class="sourceLineNo">392</span> } finally {<a name="line.392"></a> +<span class="sourceLineNo">393</span> cin.close();<a name="line.393"></a> +<span class="sourceLineNo">394</span> }<a name="line.394"></a> +<span class="sourceLineNo">395</span> }<a name="line.395"></a> +<span class="sourceLineNo">396</span><a name="line.396"></a> +<span class="sourceLineNo">397</span> /**<a name="line.397"></a> +<span class="sourceLineNo">398</span> * Decrypt a stream of ciphertext given a context and IV<a name="line.398"></a> +<span class="sourceLineNo">399</span> * @param out<a name="line.399"></a> +<span class="sourceLineNo">400</span> * @param in<a name="line.400"></a> +<span class="sourceLineNo">401</span> * @param outLen<a name="line.401"></a> +<span class="sourceLineNo">402</span> * @param context<a name="line.402"></a> +<span class="sourceLineNo">403</span> * @param iv<a name="line.403"></a> +<span class="sourceLineNo">404</span> * @throws IOException<a name="line.404"></a> +<span class="sourceLineNo">405</span> */<a name="line.405"></a> +<span class="sourceLineNo">406</span> public static void decrypt(OutputStream out, InputStream in, int outLen,<a name="line.406"></a> +<span class="sourceLineNo">407</span> Context context, byte[] iv) throws IOException {<a name="line.407"></a> +<span class="sourceLineNo">408</span> Decryptor d = context.getCipher().getDecryptor();<a name="line.408"></a> +<span class="sourceLineNo">409</span> d.setKey(context.getKey());<a name="line.409"></a> +<span class="sourceLineNo">410</span> d.setIv(iv); // can be null<a name="line.410"></a> +<span class="sourceLineNo">411</span> decrypt(out, in, outLen, d);<a name="line.411"></a> +<span class="sourceLineNo">412</span> }<a name="line.412"></a> +<span class="sourceLineNo">413</span><a name="line.413"></a> +<span class="sourceLineNo">414</span> /**<a name="line.414"></a> +<span class="sourceLineNo">415</span> * Resolves a key for the given subject<a name="line.415"></a> +<span class="sourceLineNo">416</span> * @param subject<a name="line.416"></a> +<span class="sourceLineNo">417</span> * @param conf<a name="line.417"></a> +<span class="sourceLineNo">418</span> * @return a key for the given subject<a name="line.418"></a> +<span class="sourceLineNo">419</span> * @throws IOException if the key is not found<a name="line.419"></a> +<span class="sourceLineNo">420</span> */<a name="line.420"></a> +<span class="sourceLineNo">421</span> public static Key getSecretKeyForSubject(String subject, Configuration conf)<a name="line.421"></a> +<span class="sourceLineNo">422</span> throws IOException {<a name="line.422"></a> +<span class="sourceLineNo">423</span> KeyProvider provider = (KeyProvider)getKeyProvider(conf);<a name="line.423"></a> +<span class="sourceLineNo">424</span> if (provider != null) try {<a name="line.424"></a> +<span class="sourceLineNo">425</span> Key[] keys = provider.getKeys(new String[] { subject });<a name="line.425"></a> +<span class="sourceLineNo">426</span> if (keys != null && keys.length > 0) {<a name="line.426"></a> +<span class="sourceLineNo">427</span> return keys[0];<a name="line.427"></a> +<span class="sourceLineNo">428</span> }<a name="line.428"></a> +<span class="sourceLineNo">429</span> } catch (Exception e) {<a name="line.429"></a> +<span class="sourceLineNo">430</span> throw new IOException(e);<a name="line.430"></a> +<span class="sourceLineNo">431</span> }<a name="line.431"></a> +<span class="sourceLineNo">432</span> throw new IOException("No key found for subject '" + subject + "'");<a name="line.432"></a> +<span class="sourceLineNo">433</span> }<a name="line.433"></a> +<span class="sourceLineNo">434</span><a name="line.434"></a> +<span class="sourceLineNo">435</span> /**<a name="line.435"></a> +<span class="sourceLineNo">436</span> * Encrypts a block of plaintext with the symmetric key resolved for the given subject<a name="line.436"></a> +<span class="sourceLineNo">437</span> * @param out ciphertext<a name="line.437"></a> +<span class="sourceLineNo">438</span> * @param in plaintext<a name="line.438"></a> +<span class="sourceLineNo">439</span> * @param conf configuration<a name="line.439"></a> +<span class="sourceLineNo">440</span> * @param cipher the encryption algorithm<a name="line.440"></a> +<span class="sourceLineNo">441</span> * @param iv the initialization vector, can be null<a name="line.441"></a> +<span class="sourceLineNo">442</span> * @throws IOException<a name="line.442"></a> +<span class="sourceLineNo">443</span> */<a name="line.443"></a> +<span class="sourceLineNo">444</span> public static void encryptWithSubjectKey(OutputStream out, InputStream in,<a name="line.444"></a> +<span class="sourceLineNo">445</span> String subject, Configuration conf, Cipher cipher, byte[] iv)<a name="line.445"></a> +<span class="sourceLineNo">446</span> throws IOException {<a name="line.446"></a> +<span class="sourceLineNo">447</span> Key key = getSecretKeyForSubject(subject, conf);<a name="line.447"></a> +<span class="sourceLineNo">448</span> if (key == null) {<a name="line.448"></a> +<span class="sourceLineNo">449</span> throw new IOException("No key found for subject '" + subject + "'");<a name="line.449"></a> +<span class="sourceLineNo">450</span> }<a name="line.450"></a> +<span class="sourceLineNo">451</span> Encryptor e = cipher.getEncryptor();<a name="line.451"></a> +<span class="sourceLineNo">452</span> e.setKey(key);<a name="line.452"></a> +<span class="sourceLineNo">453</span> e.setIv(iv); // can be null<a name="line.453"></a> +<span class="sourceLineNo">454</span> encrypt(out, in, e);<a name="line.454"></a> +<span class="sourceLineNo">455</span> }<a name="line.455"></a> +<span class="sourceLineNo">456</span><a name="line.456"></a> +<span class="sourceLineNo">457</span> /**<a name="line.457"></a> +<span class="sourceLineNo">458</span> * Decrypts a block of ciphertext with the symmetric key resolved for the given subject<a name="line.458"></a> +<span class="sourceLineNo">459</span> * @param out plaintext<a name="line.459"></a> +<span class="sourceLineNo">460</span> * @param in ciphertext<a name="line.460"></a> +<span class="sourceLineNo">461</span> * @param outLen the expected plaintext length<a name="line.461"></a> +<span class="sourceLineNo">462</span> * @param subject the subject's key alias<a name="line.462"></a> +<span class="sourceLineNo">463</span> *
<TRUNCATED>
