47 lines
1.9 KiB
C#
47 lines
1.9 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Security.Cryptography;
|
|
using System.Text;
|
|
|
|
namespace LightlessSync.Utils;
|
|
|
|
public static class Crypto
|
|
{
|
|
#pragma warning disable SYSLIB0021 // Type or member is obsolete
|
|
|
|
private static readonly Dictionary<(string, ushort), string> _hashListPlayersSHA256 = new();
|
|
private static readonly Dictionary<string, string> _hashListSHA256 = new(StringComparer.Ordinal);
|
|
private static readonly SHA256CryptoServiceProvider _sha256CryptoProvider = new();
|
|
|
|
public static string GetFileHash(this string filePath)
|
|
{
|
|
using SHA1 sha1 = SHA1.Create();
|
|
using FileStream stream = File.Open(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete);
|
|
return BitConverter.ToString(sha1.ComputeHash(stream)).Replace("-", "", StringComparison.Ordinal);
|
|
}
|
|
|
|
public static string GetHash256(this (string, ushort) playerToHash)
|
|
{
|
|
if (_hashListPlayersSHA256.TryGetValue(playerToHash, out var hash))
|
|
return hash;
|
|
|
|
return _hashListPlayersSHA256[playerToHash] =
|
|
BitConverter.ToString(_sha256CryptoProvider.ComputeHash(Encoding.UTF8.GetBytes(playerToHash.Item1 + playerToHash.Item2.ToString()))).Replace("-", "", StringComparison.Ordinal);
|
|
}
|
|
|
|
public static string GetHash256(this string stringToHash)
|
|
{
|
|
return GetOrComputeHashSHA256(stringToHash);
|
|
}
|
|
|
|
private static string GetOrComputeHashSHA256(string stringToCompute)
|
|
{
|
|
if (_hashListSHA256.TryGetValue(stringToCompute, out var hash))
|
|
return hash;
|
|
|
|
return _hashListSHA256[stringToCompute] =
|
|
BitConverter.ToString(_sha256CryptoProvider.ComputeHash(Encoding.UTF8.GetBytes(stringToCompute))).Replace("-", "", StringComparison.Ordinal);
|
|
}
|
|
#pragma warning restore SYSLIB0021 // Type or member is obsolete
|
|
} |