Supporting classes for en- and decryption of messages.

The package is organized in a way, that there is one central class responsible to manage the whole en- and decryption stuff. This class is called {@link com.top_logic.base.security.util.CryptSupport}. It provides methods for the following features:

One way encryption: {@link com.top_logic.base.security.util.CryptSupport#sign(java.lang.String) Sign} an incoming message in a way, that you cannot decrypt it later. To check, whether another message is equal to that one, use the {@link com.top_logic.base.security.util.CryptSupport#verify(java.lang.String,java.lang.String) verify} feature.
Two way cryption: {@link com.top_logic.base.security.util.CryptSupport#encodeString(java.lang.String) Encode} an incoming message to store it somewhere. This message can be reconstructed by the {@link com.top_logic.base.security.util.CryptSupport#decodeString(java.lang.String) decode} method later.

The keys for this operations will be stored in the $TOP_LOGIC$/database/keys directory. If there are no such keys, they will be generated by the matching classes. This is transparent to the user!