PKCS12PBECipherCore(String symmCipherAlg, int defKeySize) throws NoSuchAlgorithmException {
algo = symmCipherAlg;
if (algo.equals("RC4")) {
pbeAlgo = "PBEWithSHA1AndRC4_" + defKeySize * 8;
} else {
SymmetricCipher symmCipher = null;
if (algo.equals("DESede")) {
symmCipher = new DESedeCrypt();
pbeAlgo = "PBEWithSHA1AndDESede";
} else if (algo.equals("RC2")) {
symmCipher = new RC2Crypt();
pbeAlgo = "PBEWithSHA1AndRC2_" + defKeySize * 8;
} else {
throw new NoSuchAlgorithmException(
"No Cipher implementation " + "for PBEWithSHA1And" + algo);
}
blockSize = symmCipher.getBlockSize();
cipher = new CipherCore(symmCipher, blockSize);
cipher.setMode("CBC");
try {
cipher.setPadding("PKCS5Padding");
} catch (NoSuchPaddingException nspe) {
// should not happen
}
}
keySize = defKeySize;
}
/**
* Sets the mode of this cipher.
*
* @param mode the cipher mode
* @exception NoSuchAlgorithmException if the requested cipher mode does not exist
*/
protected void engineSetMode(String mode) throws NoSuchAlgorithmException {
core.setMode(mode);
}