作者:張小媫_602 | 来源:互联网 | 2023-05-25 15:54
1> Morio..:
OP的代码中存在一些错误.我做了一些改变.这是我跑的.
public class TFRSAEncryption
{
public string RsaEncryptWithPublic(string clearText, string publicKey)
{
var bytesToEncrypt = Encoding.UTF8.GetBytes(clearText);
var encryptEngine = new Pkcs1Encoding(new RsaEngine());
using (var txtreader = new StringReader(publicKey))
{
var keyParameter = (AsymmetricKeyParameter)new PemReader(txtreader).ReadObject();
encryptEngine.Init(true, keyParameter);
}
var encrypted = Convert.ToBase64String(encryptEngine.ProcessBlock(bytesToEncrypt, 0, bytesToEncrypt.Length));
return encrypted;
}
public string RsaEncryptWithPrivate(string clearText, string privateKey)
{
var bytesToEncrypt = Encoding.UTF8.GetBytes(clearText);
var encryptEngine = new Pkcs1Encoding(new RsaEngine());
using (var txtreader = new StringReader(privateKey))
{
var keyPair = (AsymmetricCipherKeyPair)new PemReader(txtreader).ReadObject();
encryptEngine.Init(true, keyPair.Private);
}
var encrypted = Convert.ToBase64String(encryptEngine.ProcessBlock(bytesToEncrypt, 0, bytesToEncrypt.Length));
return encrypted;
}
// Decryption:
public string RsaDecryptWithPrivate(string base64Input, string privateKey)
{
var bytesToDecrypt = Convert.FromBase64String(base64Input);
AsymmetricCipherKeyPair keyPair;
var decryptEngine = new Pkcs1Encoding(new RsaEngine());
using (var txtreader = new StringReader(privateKey))
{
keyPair = (AsymmetricCipherKeyPair)new PemReader(txtreader).ReadObject();
decryptEngine.Init(false, keyPair.Private);
}
var decrypted = Encoding.UTF8.GetString(decryptEngine.ProcessBlock(bytesToDecrypt, 0, bytesToDecrypt.Length));
return decrypted;
}
public string RsaDecryptWithPublic(string base64Input, string publicKey)
{
var bytesToDecrypt = Convert.FromBase64String(base64Input);
var decryptEngine = new Pkcs1Encoding(new RsaEngine());
using (var txtreader = new StringReader(publicKey))
{
var keyParameter = (AsymmetricKeyParameter)new PemReader(txtreader).ReadObject();
decryptEngine.Init(false, keyParameter);
}
var decrypted = Encoding.UTF8.GetString(decryptEngine.ProcessBlock(bytesToDecrypt, 0, bytesToDecrypt.Length));
return decrypted;
}
}
class Program
{
static void Main(string[] args)
{
// Set up
var input = "Perceived determine departure explained no forfeited";
var enc = new TFRSAEncryption();
var publicKey = "-----BEGIN PUBLIC KEY----- // Base64 string omitted // -----END PUBLIC KEY-----";
var privateKey = "-----BEGIN PRIVATE KEY----- // Base64 string omitted// -----END PRIVATE KEY-----";
// Encrypt it
var encryptedWithPublic = enc.RsaEncryptWithPublic(input, publicKey);
var encryptedWithPrivate = enc.RsaEncryptWithPrivate(input, privateKey);
// Decrypt
var output1 = enc.RsaDecryptWithPrivate(encryptedWithPublic, privateKey);
var output2 = enc.RsaDecryptWithPublic(encryptedWithPrivate, publicKey);
Console.WriteLine(output1 == output2 && output2 == input);
Console.Read();
}
}