/// <inheritdoc />
/// <exception cref="ArgumentNullException" />
public string Encode(IDictionary <string, object> extraHeaders, object payload, byte[] key)
{
if (payload is null)
{
throw new ArgumentNullException(nameof(payload));
}
if (!_algorithm.IsAsymmetric() && key is null)
{
throw new ArgumentNullException(nameof(key));
}
var header = extraHeaders is null ?
new Dictionary <string, object>(2, StringComparer.OrdinalIgnoreCase) :
new Dictionary <string, object>(extraHeaders, StringComparer.OrdinalIgnoreCase);
if (!header.ContainsKey("typ"))
{
header.Add("typ", "JWT");
}
header.Add("alg", _algorithm.Name);
var headerBytes = GetBytes(_jsonSerializer.Serialize(header));
var payloadBytes = GetBytes(_jsonSerializer.Serialize(payload));
var headerSegment = _urlEncoder.Encode(headerBytes);
var payloadSegment = _urlEncoder.Encode(payloadBytes);
var stringToSign = headerSegment + "." + payloadSegment;
var bytesToSign = GetBytes(stringToSign);
var signature = _algorithm.Sign(key, bytesToSign);
var signatureSegment = _urlEncoder.Encode(signature);
return(stringToSign + "." + signatureSegment);
}
/// <inheritdoc />
/// <exception cref="ArgumentNullException" />
public string Encode(IDictionary <string, object> extraHeaders, object payload, byte[] key)
{
if (payload is null)
{
throw new ArgumentNullException(nameof(payload));
}
if (!_algorithm.IsAsymmetric() && key is null)
{
throw new ArgumentNullException(nameof(key));
}
var segments = new List <string>(3);
var header = extraHeaders is null ? new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase) : new Dictionary <string, object>(extraHeaders, StringComparer.OrdinalIgnoreCase);
header.Add("typ", "JWT");
header.Add("alg", _algorithm.Name);
var headerBytes = GetBytes(_jsonSerializer.Serialize(header));
var payloadBytes = GetBytes(_jsonSerializer.Serialize(payload));
segments.Add(_urlEncoder.Encode(headerBytes));
segments.Add(_urlEncoder.Encode(payloadBytes));
var stringToSign = String.Join(".", segments.ToArray());
var bytesToSign = GetBytes(stringToSign);
var signature = _algorithm.Sign(key, bytesToSign);
segments.Add(_urlEncoder.Encode(signature));
return(String.Join(".", segments.ToArray()));
}