微信小程序用户信息解密失败导致的内存泄漏问题

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微信小程序用户信息解密失败导致的内存泄漏问题

作者： admin
发布于 2018-05-28 13:45:38
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栏目：解决方案

导语：微信小程序获取用户解密的Session_key 然后对 encryptedData进行解密偶尔报错时间长了之后会报内存溢出：

微信小程序获取用户解密的Session_key 然后对 encryptedData进行解密偶尔报错时间长了之后会报内存溢出：

java.lang.OutOfMemoryError: GC overhead limit exceeded
 
at javax.crypto.JarVerifier.verifySingleJar(JarVerifier.java:426)
at javax.crypto.JarVerifier.verifyJars(JarVerifier.java:322)
at javax.crypto.JarVerifier.verify(JarVerifier.java:250)
at javax.crypto.JceSecurity.verifyProviderJar(JceSecurity.java:160)
at javax.crypto.JceSecurity.getVerificationResult(JceSecurity.java:186)
at javax.crypto.Cipher.getInstance(Cipher.java:653)

看代码是java解密的时候报错了，

网上找了一篇文章，https://www.zhihu.com/question/40492755

然后将老代码

 
public byte[] aesCbcDecrypt(byte[] content, byte[] keyBytes, byte[] iv) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException {
    //密钥
    SecretKey k = new SecretKeySpec(keyBytes, "AES");
    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
 
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding",
 new BouncyCastleProvider()
);
 
    cipher.init(Cipher.DECRYPT_MODE, k, new IvParameterSpec(iv));
    //执行操作
    return cipher.doFinal(content);
}

改成如下方式

private static Provider provider = new BouncyCastleProvider();
 
public byte[] aesCbcDecrypt(byte[] content, byte[] keyBytes, byte[] iv) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException {
    //密钥
    SecretKey k = new SecretKeySpec(keyBytes, "AES");
    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
 
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding", provider);
 
    cipher.init(Cipher.DECRYPT_MODE, k, new IvParameterSpec(iv));
    //执行操作
    return cipher.doFinal(content);
}