public async Task <string> CreateJwtAssertion(ClientAssertion clientAssertion, string alg = null,
string typ = null)
{
if (alg != null && alg != Sha256Algorithm)
{
throw new AssertionException(
$"Invalid \"{nameof(alg)}\" header. The \"{nameof(alg)}\" header must contain the following value: \"{Sha256Algorithm}\".");
}
var jwt = CreateJwsToken(clientAssertion, null);
var publicKey = await _keyVault.GetPublicKey();
jwt.Header["x5c"] = new string[1] {
publicKey
};
jwt.Header["alg"] = Sha256Algorithm;
if (typ != null)
{
jwt.Header["typ"] = typ;
}
var jws = await _tokenGenerator.GenerateToken(jwt.Header, jwt.Payload);
return(jws);
}
public async Task <IEnumerable <SecurityKey> > GetValidationKeysAsync()
{
var publicKey = await _digitalSigner.GetPublicKey();
var certificate = publicKey.CreateX509Certificate2();
var securityKey = new X509SecurityKey(certificate);
return(new[] { securityKey });
}
private async Task <JwtHeader> BuildJwtHeader()
{
var header = new JwtHeader();
var publicKey = await _digitalSigner.GetPublicKey();
header.Add("x5c", new[] { publicKey });
header.Add("alg", SecurityAlgorithms.RsaSha256);
header.Add("typ", "JWT");
return(header);
}
private async Task <string[]> GetCertificates()
{
var publicKeyTask = _digitalSigner.GetPublicKey();
var publicKeysChainTask = _digitalSigner.GetPublicKeyChain();
await Task.WhenAll(publicKeyTask, publicKeysChainTask);
var keys = new List <string> {
publicKeyTask.Result
};
keys.AddRange(publicKeysChainTask.Result);
return(keys.ToArray());
}
public async Task <IEnumerable <SecurityKeyInfo> > GetValidationKeysAsync()
{
var publicKey = await _digitalSigner.GetPublicKey();
var certificate = publicKey.ConvertToX509Certificate2();
var securityKey = new X509SecurityKey(certificate);
return(new[]
{
new SecurityKeyInfo
{
Key = securityKey,
SigningAlgorithm = SecurityAlgorithms.RsaSha256
}
});
}
