46 lines
1.5 KiB
C#
46 lines
1.5 KiB
C#
using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Crypto.Encodings;
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using Org.BouncyCastle.Crypto.Engines;
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using Org.BouncyCastle.Crypto.Parameters;
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using Org.BouncyCastle.Security;
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using System;
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using System.Collections.Generic;
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using System.IO;
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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.Text.RegularExpressions;
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namespace WpfApp1.Util
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{
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public static class RSAHelper
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{
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/// <summary>
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/// 公钥解密
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/// </summary>
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/// <param name="content">明文</param>
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/// <param name="key">公钥</param>
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public static string DecryptByPublicKey(string content, string key)
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{
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content = content.Replace("\r", "").Replace("\n", "").Replace(" ", "");
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//非对称加密算法，加解密用
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IAsymmetricBlockCipher engine = new Pkcs1Encoding(new RsaEngine());
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//解密
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try
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{
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RsaKeyParameters publicKeyParam = (RsaKeyParameters)PublicKeyFactory.CreateKey(Convert.FromBase64String(key));
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engine.Init(false, publicKeyParam);
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byte[] byteData = Convert.FromBase64String(content);
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var ResultData = engine.ProcessBlock(byteData, 0, byteData.Length);
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return System.Text.Encoding.UTF8.GetString(ResultData);
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}
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catch (Exception ex)
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{
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UnityEngine.Debug.LogError(ex.Message);
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return "";
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}
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}
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}
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}
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