linux
javax.crypto.BadPaddingException: Given final block not properly padded
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.AESCipher.engineDoFinal(DashoA13*..)
at javax.crypto.Cipher.doFinal(DashoA13*..)
at编程客栈 chb.test.crypto.AESUtils.crypt(AESUtils.java:386)
at chb.test.crypto.AESUtils.AesDecrypt(AESUtils.java:254)
at chb.test.crypto.AESUtils.main(AESUtils.java:40)
解决方法:
public static SecretKey getKey (String strKey) {
try {
KeyGenerator _generator = KeyGenerator.getInstance( "AES" );
_generator.init(128, new SecureRandom(strKey.getBytes()));
return _generator.generateKey();
&编程客栈nbsp; } catch (Exception e) {
throw new RuntimeException( " 初始化密钥出现异常 " );
&http://www.cppcns.comnbsp; }
}
修改到如下方式,问题解决:
public static SecretKey getKey(String strKey) {
try {
KeyGenerator _generator = KeyGenerator.getInstance( "AES" );
SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG" );
secureRandom.setSeed(strKey.getBytes());
_generator.init(128,secureRandom);
&nbkuCpwQQKsp; return _generator.generateKey();
} catch (Exception e) {
throw new RuntimeException( " 初始化密钥出现异常 " );
}
}
原因分析
操作系统
复制代码 代码如下:
javax.crypto.BadPaddingException: Given final block not properly padded
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.AESCipher.engineDoFinal(DashoA13*..)
at javax.crypto.Cipher.doFinal(DashoA13*..)
at编程客栈 chb.test.crypto.AESUtils.crypt(AESUtils.java:386)
at chb.test.crypto.AESUtils.AesDecrypt(AESUtils.java:254)
at chb.test.crypto.AESUtils.main(AESUtils.java:40)
解决方法:
复制代码 代码如下:
public static SecretKey getKey (String strKey) {
try {
KeyGenerator _generator = KeyGenerator.getInstance( "AES" );
_generator.init(128, new SecureRandom(strKey.getBytes()));
return _generator.generateKey();
&编程客栈nbsp; } catch (Exception e) {
throw new RuntimeException( " 初始化密钥出现异常 " );
&http://www.cppcns.comnbsp; }
}
修改到如下方式,问题解决:
复制代码 代码如下:
public static SecretKey getKey(String strKey) {
try {
KeyGenerator _generator = KeyGenerator.getInstance( "AES" );
SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG" );
secureRandom.setSeed(strKey.getBytes());
_generator.init(128,secureRandom);
&nbkuCpwQQKsp; return _generator.generateKey();
} catch (Exception e) {
throw new RuntimeException( " 初始化密钥出现异常 " );
}
}
原因分析
操作系统
本文标题: 完美解决Linux操作系统下aes解密失败的问题
本文地址: http://www.cppcns.com/os/linux/99240.html
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