// reset the states to the pre-initialized values
private void reset() {
initialized = false;
bytesBuffered = 0;
padBufferLen = 0;
if (session != null) {
session = token.releaseSession(session);
}
}
private void initialize() throws PKCS11Exception {
if (session == null) {
session = token.getOpSession();
}
CK_MECHANISM mechParams =
(blockMode == MODE_CTR
? new CK_MECHANISM(mechanism, new CK_AES_CTR_PARAMS(iv))
: new CK_MECHANISM(mechanism, iv));
try {
if (encrypt) {
token.p11.C_EncryptInit(session.id(), mechParams, p11Key.keyID);
} else {
token.p11.C_DecryptInit(session.id(), mechParams, p11Key.keyID);
}
} catch (PKCS11Exception ex) {
// release session when initialization failed
session = token.releaseSession(session);
throw ex;
}
bytesBuffered = 0;
padBufferLen = 0;
initialized = true;
}