private void Save()
{
string rootPath = Application.streamingAssetsPath + "/RSA/";
string RSAPath = Path.Combine(rootPath, "RSA");
string encryptFilePath = Path.Combine(RSAPath, "加密文件.dll");
string decryptFilePath = Path.Combine(RSAPath, "解密文件.txt");
string publicKeyPath = Path.Combine(RSAPath, "RSA公钥.xml");
string privateKeyPath = Path.Combine(RSAPath, "RSA私钥.xml");
string DESKeyPath = Path.Combine(RSAPath, "经过RSA加密的DES秘钥.dll");
string DESIVPath = Path.Combine(RSAPath, "经过RSA加密的DES向量.dll");
if (Directory.Exists(RSAPath))
{
Directory.Delete(RSAPath, true);
}
Directory.CreateDirectory(RSAPath);
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
string RSAPublic = rsa.ToXmlString(false); // RSA公钥
string RSAPrivate = rsa.ToXmlString(true); // RSA私钥
byte[] DESKey = DESHelper.CreateKey(); // DES秘钥
byte[] DESIV = DESHelper.CreateIV(); // DES向量
// DES加密输入内容
byte[] enData = DESHelper.EncryptOrDecrypt(Encoding.Unicode.GetBytes(data), DESKey, DESIV, true);
// 写入加密文件
RSAHelper.WriteByte(enData, encryptFilePath);
// 写入RSA公钥
RSAHelper.WriteText(RSAPublic, publicKeyPath);
// 写入RSA私钥
RSAHelper.WriteText(RSAPrivate, privateKeyPath);
// 写入经过RSA加密的DES秘钥
RSAHelper.WriteByte(RSAHelper.EncryptOrDecrypt(DESKey, RSAPublic, true), DESKeyPath);
// 写入经过RSA加密的DES向量
RSAHelper.WriteByte(RSAHelper.EncryptOrDecrypt(DESIV, RSAPublic, true), DESIVPath);
// 读取RSA私钥
string privateKey = RSAHelper.GetText(privateKeyPath);
// 读取DES秘钥并解密
byte[] realDESKey = RSAHelper.EncryptOrDecrypt(RSAHelper.GetByte(DESKeyPath), privateKey, false);
// 读取DES向量并解密
byte[] realDESIV = RSAHelper.EncryptOrDecrypt(RSAHelper.GetByte(DESIVPath), privateKey, false);
// 读取加密文件
byte[] enData2 = RSAHelper.GetByte(encryptFilePath);
// 解密文件
byte[] deData = DESHelper.EncryptOrDecrypt(enData2, realDESKey, realDESIV, false);
// 写入解密文件
RSAHelper.WriteText(Encoding.Unicode.GetString(deData), decryptFilePath);
}