我試過並嘗試過,但我仍然得到「壞數據」。如何使用RSACryptoServiceProvider和公鑰的指數/模數來解密數據?C#RSA公共模/指數? (壞數據)
public static byte[] Encrypt(byte[] b, byte[] mod, byte[] exp)
{
CspParameters csp = new CspParameters();
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(csp);
RSACryptoServiceProvider.UseMachineKeyStore = false;
RSAParameters par = new RSAParameters();
par.Exponent = exp;
par.Modulus = mod;
rsa.ImportParameters(par);
return rsa.Encrypt(b, false);
}
public static byte[] Decrypt(byte[] b, byte[] pubexp, byte[] mod, byte[] priexp)
{
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
RSACryptoServiceProvider.UseMachineKeyStore = false;
RSAParameters rp = new RSAParameters();
rp.Exponent = pubexp;
rp.D = priexp;
rp.Modulus = mod;
rsa.ImportParameters(rp);
return rsa.Decrypt(b, false);
}
static List<byte[]> Base2Array(string str)
{
byte[] b = Convert.FromBase64String(str);
List<byte[]> Bytes = new List<byte[]>();
int i = 0;
while (i < b.Length)
{
int size = IPAddress.NetworkToHostOrder(BitConverter.ToInt32(b, i));
i += 4;
byte[] b2 = new byte[size];
Array.Copy(b, i, b2, 0, size);
Bytes.Add(b2);
i += size;
}
return Bytes;
}
static void Main(string[] args)
{
List<byte[]> pub = Base2Array("AAAAB3NzaC1yc2EAAAABJQAAAIBMW4HxU1glv+CcZpJnvUKEyeNfFoKkyLOVLOOb/vNXQkrkGsNdpYAZkKKizij8fD3u3/iYT8UI+xkFoyonRYVipgCslirJB1VdvLivXs69Ht4vf7VAv2yJSUni3XsIHauMlfOkjJ7DpUW75ZkrxsGieICFWlXvRnAyDdqQrkZRZQ==");
List<byte[]> pri = Base2Array("AAAAgBSjHDNiojO3UXZg6Ux4VyrOx9SCn9mCWgykWTEUeR6Anp6DxhlPUw3UEEetVy97hlw8iGCEQxcvG4T7qocni9UtUTLdpuQzvr6718y2CP0ouKt/1hVKD9QssT08XUvJEBQnnl2yVZAbIqT/DGnUH36L0BnQE/2ombPakwHscfFFAAAAQQCSfQy2cP8Oa0IR0u0whxqGmuuXY/3tCD8NaaSCYm31ly0QBdxFdf2WkC51DNVaf5/1ErHceMapFN9Z3j+/6lA7AAAAQQCFcMoSA32f240nFBmMv/nn/mL1uSdAXOxjUHViJc6M8ntZvW2ZuP2qTvfA3mh1AK5K69piX/4T72xxqTA2tmrfAAAAQFxX1JunFI+fpobdienVCZcjibwbpDPf1MVTbwQhAXHqVBL3XXgkysS/67X/aWnv/+SdBDaXa1SnDpphSWOkxAQ=");
//pub[0] 7
//pub[1] 1
//pub[2] 128
//pri[0] 128
//pri[1] 65
//pri[2] 65
//pri[3] 64
byte[] pubmod = null;
byte[] primod = null;
byte[] pubexp = null;
byte[] priexp = null;
pubexp = pub[0];
pubmod = pub[2];
priexp = pri[0];
primod = pri[2];
byte[] bstr = Encoding.ASCII.GetBytes("Test");
bstr = Encrypt(bstr, pubmod, pubexp);
bstr = Decrypt(bstr, pubexp, pubmod, null);
string str = Encoding.ASCII.GetString(bstr);
}
接近不夠的信息.... – 2010-05-26 05:51:15
添加了不起作用的代碼。 – user230821 2010-05-26 15:04:30
似乎microsofts RSA類是非常基本的,只接受其格式的密鑰。哦,下載的彈性城堡,並試圖找出它。 – user230821 2010-05-26 23:01:55