public static bool Verify(string data, string sign, string publicKey, string charset)
{
if (string.IsNullOrEmpty(data))
{
throw new ArgumentNullException(nameof(data));
}
if (string.IsNullOrEmpty(sign))
{
throw new ArgumentNullException(nameof(sign));
}
if (string.IsNullOrEmpty(publicKey))
{
throw new ArgumentNullException(nameof(publicKey));
}
if (string.IsNullOrEmpty(charset))
{
throw new ArgumentNullException(nameof(charset));
}
using (var rsa = RSA.Create())
{
rsa.ImportSubjectPublicKeyInfo(Convert.FromBase64String(publicKey), out var _);
return(rsa.VerifyData(InternalEncoding.GetEncoding(charset).GetBytes(data), Convert.FromBase64String(sign), HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1));
}
}
public static string Sign(string data, string privateKey, string charset)
{
if (string.IsNullOrEmpty(data))
{
throw new ArgumentNullException(nameof(data));
}
if (string.IsNullOrEmpty(privateKey))
{
throw new ArgumentNullException(nameof(privateKey));
}
if (string.IsNullOrEmpty(charset))
{
throw new ArgumentNullException(nameof(charset));
}
using (var rsa = RSA.Create())
{
rsa.ImportRSAPrivateKey(Convert.FromBase64String(privateKey), out var _);
return(Convert.ToBase64String(rsa.SignData(InternalEncoding.GetEncoding(charset).GetBytes(data), HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1)));
}
}
