private static void ParsePrivateKey(RSACryptoServiceProvider csp, string privateKey)
{
try
{
switch (GetKeyEncoding(privateKey))
{
case RsaKeyEncoding.Json:
JsonDocument jsonDoc = JsonDocument.Parse(privateKey, new JsonDocumentOptions {
CommentHandling = JsonCommentHandling.Disallow, MaxDepth = 1
});
JsonElement jsonRoot = jsonDoc.RootElement;
var parameters = new RSAParameters();
parameters.Modulus = HashManager.FromBase64(jsonRoot.GetProperty(nameof(parameters.Modulus)).GetString() !.ToString());
parameters.Exponent = HashManager.FromBase64(jsonRoot.GetProperty(nameof(parameters.Exponent)).GetString() !.ToString());
parameters.P = HashManager.FromBase64(jsonRoot.GetProperty(nameof(parameters.P)).GetString() !.ToString());
parameters.Q = HashManager.FromBase64(jsonRoot.GetProperty(nameof(parameters.Q)).GetString() !.ToString());
parameters.DP = HashManager.FromBase64(jsonRoot.GetProperty(nameof(parameters.DP)).GetString() !.ToString());
parameters.DQ = HashManager.FromBase64(jsonRoot.GetProperty(nameof(parameters.DQ)).GetString() !.ToString());
parameters.InverseQ = HashManager.FromBase64(jsonRoot.GetProperty(nameof(parameters.InverseQ)).GetString() !.ToString());
parameters.D = HashManager.FromBase64(jsonRoot.GetProperty(nameof(parameters.D)).GetString() !.ToString());
csp.ImportParameters(parameters);
break;
case RsaKeyEncoding.Xml:
csp.FromXmlString(privateKey);
break;
case RsaKeyEncoding.Pem:
csp.ImportPkcs8PrivateKey(HashManager.FromBase64(privateKey.Replace(RsaPemPrivateKeyInitialString, string.Empty).Replace(RsaPemPrivateKeyFinalString, string.Empty).Trim()), out int bytesRead1);
break;
default:
csp.ImportPkcs8PrivateKey(HashManager.FromBase64(privateKey), out int bytesRead2);
break;
}
}
catch (Exception)
{
throw new Exception("Unable to parse private key.");
}
}
public static string DecryptFromBase64(string data, string key)
{
return(HashManager.ToString(DecryptRaw(HashManager.FromBase64(data), HashManager.ToByteArray(key))));
}
public static Boolean VerifyBase64Signature(string data, HashAlgorithm hashAlgorithm, string signature, string publicKey)
{
return(VerifyRaw(HashManager.ToByteArray(data), hashAlgorithm, HashManager.FromBase64(signature), publicKey));
}
public static string DecryptFromBase64(string data, string privateKey)
{
return(HashManager.ToString(DecryptRaw(HashManager.FromBase64(data), privateKey)));
}
