本文整理汇总了Java中com.sun.spotx.crypto.Cipher.DECRYPT_MODE属性的典型用法代码示例。如果您正苦于以下问题：Java Cipher.DECRYPT_MODE属性的具体用法？Java Cipher.DECRYPT_MODE怎么用？Java Cipher.DECRYPT_MODE使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类com.sun.spotx.crypto.Cipher的用法示例。
在下文中一共展示了Cipher.DECRYPT_MODE属性的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: engineInit
/**
* Initializes this cipher with a key and a set of algorithm
* parameters.
*
* @param opMode the operation mode of this cipher
* @param key the encryption key
* @param params the algorithm parameters
*
* @exception java.security.InvalidKeyException if the given key
* is inappropriate for initializing this cipher
* @exception java.security.InvalidAlgorithmParameterException
* if the given algorithm parameters are inappropriate for this cipher
* @exception IllegalArgumentException if opMode is incorrect
*/
protected void engineInit(int opMode, Key key, AlgorithmParameterSpec params)
throws InvalidKeyException, InvalidAlgorithmParameterException {
if (params!=null)
throw new InvalidAlgorithmParameterException(RSA_ALGORITHM_NAME+" does not support AlgorithmParameterSpec. Must be null.");
if (!(key instanceof RSAKey)) {
throw new InvalidKeyException();
}
if (opMode != Cipher.DECRYPT_MODE && opMode != Cipher.ENCRYPT_MODE) {
throw new IllegalArgumentException("Wrong operation mode");
}
mode = opMode;
ckey = (RSAKey)key;
if (ckey.getModulusLen() == 0) {
throw new InvalidKeyException();
}
messageToSign = new byte[ckey.getModulusLen()];
bytesInMessage = 0;
}
示例2: engineInit
protected void engineInit(int opmode, Key key, AlgorithmParameterSpec params)
throws InvalidKeyException, InvalidAlgorithmParameterException {
initOk = false;
if (!(key instanceof SecretKeySpec)) {
throw new InvalidKeyException("Key is not of required type SecretKey.");
}
if ((opmode != Cipher.ENCRYPT_MODE) && (opmode != Cipher.DECRYPT_MODE)) {
throw new IllegalArgumentException("Unsupported mode.");
}
if (params instanceof IvParameterSpec) {
ivParameter=(IvParameterSpec)params;
if (!modeCBC) {
throw new InvalidAlgorithmParameterException("AlgorithmParameterSpec must be null for "+ALG1+" in ECB mode.");
}
} else if (params!=null) {
throw new InvalidAlgorithmParameterException("AlgorithmParameterSpec params has to be null or IvParamater. Is: "+params.getClass().getName());
}
if (modeCBC) {
IV = new int[4];
if (ivParameter == null) {
clearIV();
} else {
unpackBlock(ivParameter.getIV(), 0, IV);
}
}
mode = opmode;
this.key = (SecretKeySpec)key;
generateWorkingKey(this.key.getEncoded(), (mode == Cipher.ENCRYPT_MODE));
initOk = true;
}
示例3: engineInit
protected void engineInit(int theMode, Key theKey, AlgorithmParameterSpec params) throws InvalidKeyException, InvalidAlgorithmParameterException {
if (params!=null)
throw new InvalidAlgorithmParameterException(ALG2+" does not support AlgorithmParameterSpec. Must be null");
if (!(theKey instanceof SecretKeySpec)) {
throw new InvalidKeyException();
}
if ((theMode != Cipher.ENCRYPT_MODE) &&
(theMode != Cipher.DECRYPT_MODE)) {
throw new InvalidAlgorithmParameterException();
//CryptoException.throwIt(CryptoException.ILLEGAL_VALUE);
}
/*if (!theKey.isInitialized()) {
CryptoException.throwIt(CryptoException.UNINITIALIZED_KEY);
}*/
this.mode = theMode;
this.key = theKey;
byte[] K = ((SecretKeySpec)theKey).getEncoded();
int kLen = ((SecretKeySpec)theKey).getEncoded().length;
/* Initialize S */
for (int i = 0; i < 256; i++) {
S[i] = (byte) i;
}
int j = 0;
int k = 0;
byte temp;
for (int i = 0; i < 256; i++) {
j = (j + ((S[i] + K[k]) & 0xff)) & 0xff;
temp = S[i];
S[i] = S[j];
S[j] = temp;
if (++k >= kLen) k = 0;
}
jj = ii = 0;
initOk = true;
needsReset = false;
}