/// <inheritdoc />
protected internal override bool VerifySignature(byte[] data, byte[] signature)
{
using (var hasher = CryptographicEngine.GetHashAlgorithm(this.Algorithm))
{
byte[] hash = hasher.ComputeHash(data);
return(this.VerifyHash(hash, signature));
}
}
/// <inheritdoc />
protected internal override byte[] Sign(byte[] data)
{
using (var hasher = CryptographicEngine.GetHashAlgorithm(this.Algorithm))
{
byte[] hash = hasher.ComputeHash(data);
return(this.SignHash(hash));
}
}
/// <inheritdoc />
protected internal override byte[] Sign(byte[] data)
{
using (var hash = CryptographicEngine.GetHashAlgorithm(this.Algorithm))
{
AsymmetricSignatureFormatter formatter = this.GetSignatureFormatter();
formatter.SetHashAlgorithm(hash.ToString());
return(formatter.CreateSignature(hash.ComputeHash(data)));
}
}
/// <inheritdoc />
protected internal override bool VerifySignature(byte[] data, byte[] signature)
{
using (var hash = CryptographicEngine.GetHashAlgorithm(this.Algorithm))
{
var deformatter = this.GetSignatureDeformatter();
deformatter.SetHashAlgorithm(hash.ToString());
return(deformatter.VerifySignature(hash.ComputeHash(data), signature));
}
}
/// <inheritdoc />
protected internal override byte[] SignHash(byte[] data)
{
using (var hash = CryptographicEngine.GetHashAlgorithm(this.Algorithm))
{
var formatter = new RSAPKCS1SignatureFormatter(this.Rsa);
formatter.SetHashAlgorithm(hash.ToString());
return(formatter.CreateSignature(data));
}
}
/// <inheritdoc />
protected internal override bool VerifyHash(byte[] data, byte[] signature)
{
try
{
using (var hash = CryptographicEngine.GetHashAlgorithm(this.Algorithm))
{
var deformatter = this.GetSignatureDeformatter();
deformatter.SetHashAlgorithm(hash.ToString());
return(deformatter.VerifySignature(data, signature));
}
}
catch (CryptographicException)
{
return(false);
}
}