JwtWrapper.cs

using System;
using System.Collections.Generic;

namespace Bit0.Utils.Security.Jwt
{
    /// <summary>
    /// Json Web Token wrapper
    /// </summary>
    public static class JwtWrapper
    {
        /// <summary>
        /// Genarate a new Json Web Token
        /// </summary>
        /// <param name="payload"></param>
        /// <param name="jwtKey"></param>
        /// <returns></returns>
        public static String Generate(IDictionary<String, Object> payload, IJwtKey jwtKey)
        {
            var token = Jose.JWT.Encode(payload, jwtKey.Key, jwtKey.Algorithm);
            return token;
        }

        /// <summary>
        /// Validate a Json Web Token
        /// </summary>
        /// <param name="token">Token to parse</param>
        /// <param name="jwtKey">JWT Key</param>
        /// <param name="validate">Additional </param>
        /// <returns></returns>
        public static IDictionary<String, Object> Parse(String token, IJwtKey jwtKey, Boolean validate = true)
        {
            var jwt = Jose.JWT.Decode<IDictionary<String, Object>>(token, validate ? jwtKey.Key : null);

            if (validate)
            {
                jwt.ValidateDate(JwtClaimKeys.Expiry, "Access token has expired.");
                jwt.ValidateDate(JwtClaimKeys.IssuedAt, "Invalid access token.");
                jwt.ValidateDate(JwtClaimKeys.NotBefore, "Invalid access token, cannot use before {0}.");
            }

            return jwt;
        }
        
        /// <summary>
        /// Get only payload from Json Web Token
        /// </summary>
        /// <param name="token"></param>
        /// <returns></returns>
        public static IDictionary<String, Object> Payload(String token)
        {
            return Jose.JWT.Payload<IDictionary<String, Object>>(token);
        }

    }
}