如何使用rsa c＃

Question

我想仅使用公钥来加密和解密RSA，但我在解密方面遇到错误。错误：＆＃34;未知块类型＆＃34; 你能帮忙吗？

BigInteger rsaPubMod = new BigInteger(Base64.Decode("ALGZqqOFBDh6qULIV0hf5g+Zg5uQqTYWhrw9fzUJwWL8dW7V6kd+9kO8yD+1/f8NVmSDAWGfmVImsPNZp/8x/tF/DycPi5vfRuzHfFcT0mSgD7VW2CfuKM0Gh2WOpgXct6IMC7UsWTkPf8VBSgHobbkr+Ex5pm09mooe2KXTtXN3"));
BigInteger rsaPubExp = new BigInteger(Base64.Decode("AQAB"));
Org.BouncyCastle.Crypto.AsymmetricCipherKeyPair keyPair = new AsymmetricCipherKeyPair(new RsaKeyParameters(false, rsaPubMod, rsaPubExp), new RsaKeyParameters(true, rsaPubMod,rsaPubExp));
RsaKeyParameters pubParameters = new RsaKeyParameters(false, rsaPubMod, rsaPubExp);
IAsymmetricBlockCipher eng = new Pkcs1Encoding(new RsaEngine());
eng.Init(true, pubParameters);
byte[] encdata = Convert.FromBase64String("test");
var encdataResult = eng.ProcessBlock(encdata, 0, encdata.Length);
string result = Convert.ToBase64String(encdataResult);
IAsymmetricBlockCipher deng = new Pkcs1Encoding(new RsaEngine());
deng.Init(false, pubParameters);
byte[] decdata = Convert.FromBase64String(result);
var dencdataResult = deng.ProcessBlock(decdata, 0, decdata.Length);
string result2 = Encoding.UTF8.GetString(dencdataResult);

Answer 1

RSA是一种非对称算法。使用公钥，您可以加密或执行签名验证。使用私钥，您可以解密，执行签名创建或创建公钥。