42 lines
1.3 KiB
C#
42 lines
1.3 KiB
C#
using NUnit.Framework;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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using System.Threading.Tasks;
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namespace Obfuz.Utils
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{
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public static class KeyGenerator
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{
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public static byte[] GenerateKey(string initialString, int keyLength)
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{
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byte[] initialBytes = Encoding.UTF8.GetBytes(initialString);
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using (var sha512 = SHA512.Create())
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{
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byte[] hash = sha512.ComputeHash(initialBytes);
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byte[] key = new byte[keyLength];
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int bytesCopied = 0;
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while (bytesCopied < key.Length)
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{
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if (bytesCopied > 0)
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{
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// 再次哈希之前的哈希值以生成更多数据
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hash = sha512.ComputeHash(hash);
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}
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int bytesToCopy = Math.Min(hash.Length, key.Length - bytesCopied);
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Buffer.BlockCopy(hash, 0, key, bytesCopied, bytesToCopy);
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bytesCopied += bytesToCopy;
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}
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return key;
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}
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}
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public static int[] ConvertToIntKey(byte[] key)
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{
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return EncryptorBase.ConvertToIntKey(key);
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}
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}
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}
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