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问题

加密/解密

# 私钥转报algid parse error, not a sequence

代码：

  PrivateKey getPrivateKey(String key) throws NoSuchAlgorithmException, InvalidKeySpecException {
    byte[] keyBytes = Base64.getDecoder().decode(key);
    PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyBytes);
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    return keyFactory.generatePrivate(keySpec);
  }
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错误：

java.security.spec.InvalidKeySpecException: java.security.InvalidKeyException: IOException : algid parse error, not a sequence
	at sun.security.rsa.RSAKeyFactory.engineGeneratePrivate(RSAKeyFactory.java:217)
	at java.security.KeyFactory.generatePrivate(KeyFactory.java:372)
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解决：

  PrivateKey getPrivateKey(String key) throws NoSuchAlgorithmException, InvalidKeySpecException {
    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
    byte[] keyBytes = Base64.getDecoder().decode(key);
    PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyBytes);
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    return keyFactory.generatePrivate(keySpec);
  }
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参考：
https://blog.csdn.net/ls0111/article/details/77533768 (opens new window)
https://blog.csdn.net/qq_29583513/article/details/78866461 (opens new window)
https://www.cnblogs.com/yszr/p/8215075.html (opens new window)

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