java.security.NoSuchAlgorithmException: Cannot find any provider supporting AES/CBC/PKCS7Padding
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java.security.NoSuchAlgorithmException: Cannot find any provider supporting AES/CBC/PKCS7Padding
遇到以上问题,先后修改了jdk1.8的jar包
方法一失败:
在AES加解密工具类中加静态代码
static {
Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
}
升级bcprov包版本
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.56</version>
</dependency>
方法二成功:
1.在 jdk安装目录中(%JAVA_HOME%\jre\lib\ext)添加 jar 包 bcprov-jdk16-1.46.jar
2.在 jdk安装目录下( %JAVA_HOME%\jre\lib\security )修改 java.security 文件,的 security.provider.7=com.sun.security.sasl.Provider 替换为security.provider.7=org.bouncycastle.jce.provider.BouncyCastleProvider
此种方式有效,但是不能保证每台服务器都可以是这种状态
因此还需要从代码下手
方法三成功:
把用到解加密的AES包中的PKCS7Padding修改成PKCS5Padding
成功解决。
以下是我的AESUtil工具类
public class AESHelperNewForMsg {
private static final String ENCODE = “UTF-8”; // AES加密时使用UTF8编码方式
private final String KEY_GENERATION_ALG = "PBKDF2WithHmacSHA1";
private int HASH_ITERATIONS = 10000;
private int KEY_LENGTH = 256;
private byte[] salt = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF }; // must save this for next time we want the key
private PBEKeySpec myKeyspec = null;
private SecretKeyFactory keyfactory = null;
private SecretKey sk = null;
private SecretKeySpec key = null;
private Cipher cipher;
boolean isInited = false;
byte[] iv = { 0xA, 1, 0xB, 5, 4, 0xF, 7, 9, 0x17, 3, 1, 6, 8, 0xC, 0xD, 91 };
private IvParameterSpec IV;
final String algorithmStr = "AES/CBC/PKCS5Padding";
public AESHelperNewForMsg(String publicKey) {
Security.addProvider(new BouncyCastleProvider());
try {
cipher = Cipher.getInstance(algorithmStr);
IV = new IvParameterSpec(iv);
keyfactory = SecretKeyFactory.getInstance(KEY_GENERATION_ALG);
myKeyspec = new PBEKeySpec(publicKey.toCharArray(), salt, HASH_ITERATIONS, KEY_LENGTH);
sk = keyfactory.generateSecret(myKeyspec);
byte[] skAsByteArray = sk.getEncoded();
key = new SecretKeySpec(skAsByteArray, "AES");
} catch (Exception e) {
e.printStackTrace();
}
}
public AESHelperNewForMsg(String publicKey, Integer keyLength, Integer iterations) {
KEY_LENGTH = keyLength;
HASH_ITERATIONS = iterations;
Security.addProvider(new BouncyCastleProvider());
try {
cipher = Cipher.getInstance(algorithmStr);
IV = new IvParameterSpec(iv);
keyfactory = SecretKeyFactory.getInstance(KEY_GENERATION_ALG);
myKeyspec = new PBEKeySpec(publicKey.toCharArray(), salt, HASH_ITERATIONS, KEY_LENGTH);
sk = keyfactory.generateSecret(myKeyspec);
byte[] skAsByteArray = sk.getEncoded();
key = new SecretKeySpec(skAsByteArray, "AES");
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 加密方法
*
* @param content
* 要加密的字符串
* @return
*/
public String encrypt(String content) {
byte[] encryptedText = null;
try {
cipher.init(Cipher.ENCRYPT_MODE, key, IV);
encryptedText = cipher.doFinal(content.getBytes(ENCODE));
} catch (Exception e) {
e.printStackTrace();
}
return Base64.encodeBase64String(encryptedText);
}
/**
* 解密方法
* @return
* @throws UnsupportedEncodingException
*/
public String decrypt(String secretContent) throws UnsupportedEncodingException {
byte[] s = Base64.decodeBase64(secretContent);
byte[] encryptedText = null;
try {
cipher.init(Cipher.DECRYPT_MODE, key, IV);
encryptedText = cipher.doFinal(s);
} catch (Exception e) {
e.printStackTrace();
}
return new String(encryptedText, ENCODE);
}
private static byte[] shortMD5(String b) throws Exception {
try {
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(b.getBytes(ENCODE));
byte[] digest = md.digest();
return digest;
} catch (Exception e) {
throw new Exception();
}
}
public static void main(String[] args) {
String uh3nywr7n85fqqd8a6te3ra82c20inrw = null;
try {
uh3nywr7n85fqqd8a6te3ra82c20inrw = new AESHelperNew("uh3nywr7n85fqqd8a6te3ra82c20inrw").decrypt("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");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
System.out.println("a = " + uh3nywr7n85fqqd8a6te3ra82c20inrw);
}
}
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