public bool Verify(string payload, byte[] signature, JsonWebKey jsonWebKey)
{
var plainBytes = ASCIIEncoding.ASCII.GetBytes(payload);
using (var dsa = new ECDsaCng())
{
dsa.HashAlgorithm = CngHashAlg;
dsa.Import(jsonWebKey.Content);
return(dsa.VerifyData(plainBytes, signature, HashAlg));
}
}
public string Sign(string payload, JsonWebKey jsonWebKey)
{
var bytesToBeSigned = ASCIIEncoding.ASCII.GetBytes(payload);
using (var dsa = new ECDsaCng())
{
dsa.HashAlgorithm = CngHashAlg;
dsa.Import(jsonWebKey.Content);
return(dsa.SignData(bytesToBeSigned, HashAlg).Base64EncodeBytes());
}
}