Hi,
I am new to Android. For an application, I need to upgrade a plain TCP
socket to SSL socket (server mode) on Android. The following code
worked, but it took about 12 seconds to finish the SSL handshake on
Samsung Galaxy S with Android 2.3.3 (API 10). I also tested the same
code on simulator with android 4.0.3 (API 15), the result was same.
The client was Chrome browser. From the Wireshark trace, all the SSL
handshake messages flowed very fast, and then there was a 10 seconds
gap between the Change Cipher Spec/Encrypted Handshake message (last
two messages of SSL handshake on server side) and the first
application Data (it was HTTP GET from chrome).
private boolean handleSSLHandshake() {
try {
SSLContext sc = SSLContext.getInstance("TLS");
sc.init(this.kmf.getKeyManagers(), null, null);
SSLSocketFactory factory = sc.getSocketFactory();
this.sslSocket = (SSLSocket) factory.createSocket(this.socket,
this.socket.getInetAddress().getHostAddress(),
this.socket.getPort(),
true);
this.sslSocket.setUseClientMode(false);
this.sslSocket.addHandshakeCompletedListener(this);
this.sslSocket.startHandshake();
Log.d(TAG, "SSL upgrade succeeds!");
this.input = this.sslSocket.getInputStream();
this.output = this.sslSocket.getOutputStream();
} catch (NoSuchAlgorithmException e) {
Log.d(TAG, "Got NoSuchAlgorithmException while upgrading to
SSL" + e);
this.sslSocket = null;
return false;
} catch (KeyManagementException e) {
Log.d(TAG, "Got KeyManagementException while upgrading to SSL"
+ e);
} catch (UnknownHostException e) {
Log.d(TAG, "Got UnknownHostException while upgrading to SSL" +
e);
this.sslSocket = null;
return false;
} catch (IOException e) {
Log.d(TAG, "Got IOException while upgrading to SSL" + e);
this.sslSocket = null;
return false;
}
return true;
}
Does anyone have clue on which code took 10 seconds? How to reduce
this? And how to debug the SSL handshake on Android?
Thanks a lot for help,
/Kaiduan
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