Message-Id: <1.5.4.32.19980207223844.00675e08@pop.solar.com.br>
Date: Sat, 07 Feb 1998 20:38:44 -0200
To: java-security@web1.javasoft.com
From: Rodrigo Sodre <rsodre@solar.com.br>
Subject: Cipher or CipherSpi?
Greetings,
To implement a provider, the first step is implement the
criptographic algoritm classes. For example, if I want to prove an MD5 class
I must do it in the following way:
class MyMD5Class extends Message Digest {
...
}
and inside defining the methods starting by "engine" (remembring that
MessageDigest is a subclass of MessageDigestSpi, wich defines a group of
methods started by "engine").
So, my doubt: if I want to prove a class that implements RSA, wich
class should I extend: Chipher or CipherSpi? (Cipher isn't a class of
CipherSpi).
Thanks in advance and best regards.
Rodrigo Sodre - rsodre@solar.com.br