GenXdev.Helpers

1.270.2025

Functions/GenXdev.Helpers/MD5.cs

// ################################################################################
// Part of PowerShell module : GenXdev.Helpers
// Original cmdlet filename : MD5.cs
// Original author : René Vaessen / GenXdev
// Version : 1.270.2025
// ################################################################################
// MIT License
//
// Copyright 2021-2025 GenXdev
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ################################################################################
 
 
 
using System.Text;
 
namespace GenXdev.Security
{
    public static class MD5
    {
        public static string CalculateMD5Hash(string input)
        {
            // step 1, calculate MD5 hash from input
            byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);
            byte[] hash = System.Security.Cryptography.MD5.HashData(inputBytes);
 
            // step 2, convert byte array to hex string
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < hash.Length; i++)
            {
                sb.Append(hash[i].ToString("X2"));
            }
            return sb.ToString().ToLower();
        }
        public static string CalculateMD5Hash(Stream s)
        {
            // step 1, calculate MD5 hash from input
            var md5 = System.Security.Cryptography.MD5.Create();
            byte[] hash = md5.ComputeHash(s);
 
            // step 2, convert byte array to hex string
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < hash.Length; i++)
            {
                sb.Append(hash[i].ToString("X2"));
            }
            return sb.ToString().ToLower();
        }
        public static string CalculateMD5Base64Hash(string input)
        {
            // step 1, calculate MD5 hash from input
            byte[] inputBytes = System.Text.Encoding.UTF8.GetBytes(input);
            byte[] hash = System.Security.Cryptography.MD5.HashData(inputBytes);
 
            return Convert.ToBase64String(hash).ToLowerInvariant();
        }
    }
}