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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package sun.security.krb5.internal.crypto;
import sun.security.krb5.internal.crypto.dk.Des3DkCrypto;
import sun.security.krb5.KrbCryptoException;
import java.security.GeneralSecurityException;
/**
* Class with static methods for doing Triple DES operations.
*/
public class Des3 {
private static final Des3DkCrypto CRYPTO = new Des3DkCrypto();
private Des3() {
}
public static byte[] stringToKey(char[] chars)
throws GeneralSecurityException {
return CRYPTO.stringToKey(chars);
}
public static byte[] parityFix(byte[] value)
throws GeneralSecurityException {
return CRYPTO.parityFix(value);
}
// in bytes
public static int getChecksumLength() {
return CRYPTO.getChecksumLength();
}
public static byte[] calculateChecksum(byte[] baseKey, int usage,
byte[] input, int start, int len) throws GeneralSecurityException {
return CRYPTO.calculateChecksum(baseKey, usage, input, start, len);
}
public static byte[] encrypt(byte[] baseKey, int usage,
byte[] ivec, byte[] plaintext, int start, int len)
throws GeneralSecurityException, KrbCryptoException {
return CRYPTO.encrypt(baseKey, usage, ivec, null /* new_ivec */,
plaintext, start, len);
}
/* Encrypt plaintext; do not add confounder, padding, or checksum */
public static byte[] encryptRaw(byte[] baseKey, int usage,
byte[] ivec, byte[] plaintext, int start, int len)
throws GeneralSecurityException, KrbCryptoException {
return CRYPTO.encryptRaw(baseKey, usage, ivec, plaintext, start, len);
}
public static byte[] decrypt(byte[] baseKey, int usage, byte[] ivec,
byte[] ciphertext, int start, int len)
throws GeneralSecurityException {
return CRYPTO.decrypt(baseKey, usage, ivec, ciphertext, start, len);
}
/**
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