本文整理汇总了Java中sun.security.rsa.RSAPadding.getMaxDataSize方法的典型用法代码示例。如果您正苦于以下问题：Java RSAPadding.getMaxDataSize方法的具体用法？Java RSAPadding.getMaxDataSize怎么用？Java RSAPadding.getMaxDataSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sun.security.rsa.RSAPadding的用法示例。
在下文中一共展示了RSAPadding.getMaxDataSize方法的2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: checkRSAKeyLength
import sun.security.rsa.RSAPadding; //导入方法依赖的package包/类
private void checkRSAKeyLength(int len) throws InvalidKeyException {
RSAPadding padding;
try {
padding = RSAPadding.getInstance
(RSAPadding.PAD_BLOCKTYPE_1, (len + 7) >> 3);
} catch (InvalidAlgorithmParameterException iape) {
throw new InvalidKeyException(iape.getMessage());
}
int maxDataSize = padding.getMaxDataSize();
int encodedLength;
if (algorithm.equals("MD5withRSA") ||
algorithm.equals("MD2withRSA")) {
encodedLength = 34;
} else if (algorithm.equals("SHA1withRSA")) {
encodedLength = 35;
} else if (algorithm.equals("SHA224withRSA")) {
encodedLength = 47;
} else if (algorithm.equals("SHA256withRSA")) {
encodedLength = 51;
} else if (algorithm.equals("SHA384withRSA")) {
encodedLength = 67;
} else if (algorithm.equals("SHA512withRSA")) {
encodedLength = 83;
} else {
throw new ProviderException("Unknown signature algo: " + algorithm);
}
if (encodedLength > maxDataSize) {
throw new InvalidKeyException
("Key is too short for this signature algorithm");
}
}
示例2: checkRSAKeyLength
import sun.security.rsa.RSAPadding; //导入方法依赖的package包/类
private void checkRSAKeyLength(int len) throws InvalidKeyException {
RSAPadding padding;
try {
padding = RSAPadding.getInstance
(RSAPadding.PAD_BLOCKTYPE_1, (len + 7) >> 3);
} catch (InvalidAlgorithmParameterException iape) {
throw new InvalidKeyException(iape.getMessage());
}
int maxDataSize = padding.getMaxDataSize();
int encodedLength;
if (algorithm.equals("MD5withRSA") ||
algorithm.equals("MD2withRSA")) {
encodedLength = 34;
} else if (algorithm.equals("SHA1withRSA")) {
encodedLength = 35;
} else if (algorithm.equals("SHA256withRSA")) {
encodedLength = 51;
} else if (algorithm.equals("SHA384withRSA")) {
encodedLength = 67;
} else if (algorithm.equals("SHA512withRSA")) {
encodedLength = 83;
} else {
throw new ProviderException("Unknown signature algo: " + algorithm);
}
if (encodedLength > maxDataSize) {
throw new InvalidKeyException
("Key is too short for this signature algorithm");
}
}