Question

我正在对angular 6和.net核心api端进行加密/解密请求/响应。我正在使用AES对angular中的数据进行加密，并使用RSA公钥对AES密钥进行加密，并将其发送到.net核心api。我创建了动作过滤器以解密请求，然后首先解密请求，我必须使用RSA私钥解密AES密钥，但是使用RSA私钥解密AES密钥时却给我一个错误：

ex {Org.BouncyCastle.Crypto.InvalidCipherTextException：块不正确   在Org.BouncyCastle.Crypto.Encodings.Pkcs1Encoding.DecodeBlock处（字节[]输入，Int32 inOff，Int32 inLen）   Phyzii.Core.Api.Security.RSA.Decrypt（String cipherText）}处的System.Exception {Org.BouncyCastle.Crypto.InvalidCipherTextException}

这是我在斜角端的RSA加密代码：

import JSEncrypt from 'jsencrypt';
encryptObj = new JSEncrypt();
transitionIn(data: any) {
    this.aesSecretKey=this.makeUniqueKey(10);
    console.log(this.aesSecretKey);
    this.data.DATAOBJ = this.aesEncrypt(this.aesSecretKey, data);
    this.encryptObj.setPublicKey(this.publicKeyClient);
    this.data.KEY = this.encryptObj.encrypt(this.aesSecretKey);
    return this.data;
}

这是我在C＃端的RSA解密代码：

private static AsymmetricCipherKeyPair ReadPemFile(string flag)
{
    string filePath = flag == "PUBLIC" ? "D:/Crypto/private_key.pem" : "D:/Crypto/private_key_server.pem";
    AsymmetricCipherKeyPair keys;
    using (var reader = File.OpenText(filePath))// file containing RSA PKCS1 private key
        keys = (AsymmetricCipherKeyPair)new PemReader(reader).ReadObject();
    AsymmetricKeyParameter private_key = keys.Private;
    AsymmetricKeyParameter public_key = keys.Public;
    return keys;
}


//cipherText = "gOItOryuGy0UXHfoNqo0omcXLIOS6dhLJas5zeDNA7MfvsHYwP4ccSWU9JwTrIRiYUq/NB9oRn62ZQ5ynDnsGXUmHfVT4oPxtQZE1fXTTMN5ycfgthegesmXoZMMcWxA/wnwjLAgE17MNaunKY307W+nyc3jEMT1QsWUoOBESo0="
public static string Decrypt(string cipherText) 
{
    try
    {
        byte[] cipherTextBytes = Convert.FromBase64String(cipherText);
        AsymmetricCipherKeyPair keys = ReadPemFile("PRIVATE");
        AsymmetricKeyParameter private_key = keys.Private;

        // Pure mathematical RSA implementation
        // RsaEngine eng = new RsaEngine();

        // PKCS1 v1.5 paddings
        // Pkcs1Encoding eng = new Pkcs1Encoding(new RsaEngine());

        // PKCS1 OAEP paddings
        Pkcs1Encoding eng = new Pkcs1Encoding(new RsaEngine());
        eng.Init(false, private_key);

        int length = cipherTextBytes.Length;
        int blockSize = eng.GetInputBlockSize();
        List<byte> plainTextBytes = new List<byte>();
        for (int chunkPosition = 0; chunkPosition < length; chunkPosition += blockSize)
        {
            int chunkSize = Math.Min(blockSize, length - chunkPosition);
            plainTextBytes.AddRange(eng.ProcessBlock(cipherTextBytes, chunkPosition, chunkSize));
        }
        return Encoding.UTF8.GetString(plainTextBytes.ToArray());
    }
    catch (Exception ex)
    {
        throw ex;
    }
}

并且如果我在Pkcs1Encoding Init中设置了true

Pkcs1Encoding eng = new Pkcs1Encoding(new RsaEngine());
eng.Init(true, private_key);

然后它将以这种格式��Ŧ��%�Rc��\u000e�\b\u0004��I�]&P~�+�뛡�^s�V�ʗ' \b��?Jv�F�ge\u001b�S��^�\u0002��v/|�vh�}�z�[A�}��\u0002u\\�Pp��\u0011k9\u001e\n�E\b�\u0003��\u001a#��}��y��\u000eTG�U\a�A_KV�\u007fs��?3��*/*\n\n~�w�Q��'��\a:��q��BH\u0004R�#c��'d�\u001f��\0 5\u007f��fs�<��\u0012\t��|�[\u0015\b+��8\u0003解密数据。[�v��Ǹ��8ځ\u001cԞv�{=��@ -o \ u0004.I \u0014J�\ 0＃4 `

这是不正确的，可能是什么问题？

使用RSA解密AES密钥时无效的密码文本异常

0 个答案: