Hello!
I would like to ask help from you about encrypt and decrypt. I actually have
here a simple code :
static String crypto( String passwd, int offset )
StringBuffer s_buff = new StringBuffer();
for( int i = 0; i < passwd.length(); i++ ) {
s_buff.append( (char)( offset + passwd.charAt( i ) ) );
}
return sb.toString();
}
public Crypto( String password ) {
int offset = 3;
password = crypto( password, offset );
System.out.println( "Password encyrpted as " + password );
password = crypto(password, -offset );
System.out.println( "Password decrypted to " + password );
}
but as my boss said it is not acceptable because it is so simple to decode
the password back to the unencrypted one. I study the encryption algorithm
of UNIX but it is very hard to decrypt or return the unencrypted one. Does
anybody here have a the kind heart to share some code about encrypt and
decrypt that is much harder to the one I wrote?
Thanks.
-Sharon
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