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669 lines (577 loc) · 23.6 KB
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using System;
using System.Collections.Generic;
using System.Text;
using System.Security.Cryptography;
using System.IO;
using NETCore.Encrypt.Shared;
using NETCore.Encrypt.Extensions;
using NETCore.Encrypt.Internal;
using NETCore.Encrypt.Extensions.Internal;
namespace NETCore.Encrypt
{
public class EncryptProvider
{
#region AES
/// <summary>
/// create ase key
/// </summary>
/// <returns></returns>
public static AESKey CreateAesKey()
{
return new AESKey()
{
Key = GetRandomStr(32),
IV = GetRandomStr(16)
};
}
/// <summary>
/// Generate a random key
/// </summary>
/// <param name="n">key length，IV is 16，Key is 32</param>
/// <returns>return random value</returns>
private static string GetRandomStr(int length)
{
char[] arrChar = new char[]{
'a','b','d','c','e','f','g','h','i','j','k','l','m','n','p','r','q','s','t','u','v','w','z','y','x',
'0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','Q','P','R','T','S','V','U','W','X','Y','Z'
};
StringBuilder num = new StringBuilder();
Random rnd = new Random(DateTime.Now.Millisecond);
for (int i = 0; i < length; i++)
{
num.Append(arrChar[rnd.Next(0, arrChar.Length)].ToString());
}
return num.ToString();
}
/// <summary>
/// AES encrypt
/// </summary>
/// <param name="data">Raw data</param>
/// <param name="key">Key, requires 32 bits</param>
/// <param name="vector">IV,requires 16 bits</param>
/// <returns>Encrypted string</returns>
public static string AESEncrypt(string data, string key, string vector)
{
Check.Argument.IsNotEmpty(data, nameof(data));
Check.Argument.IsNotEmpty(key, nameof(key));
Check.Argument.IsNotOutOfRange(key.Length, 32, 32, nameof(key));
Check.Argument.IsNotEmpty(vector, nameof(vector));
Check.Argument.IsNotOutOfRange(vector.Length, 16, 16, nameof(vector));
Byte[] plainBytes = Encoding.UTF8.GetBytes(data);
Byte[] bKey = new Byte[32];
Array.Copy(Encoding.UTF8.GetBytes(key.PadRight(bKey.Length)), bKey, bKey.Length);
Byte[] bVector = new Byte[16];
Array.Copy(Encoding.UTF8.GetBytes(vector.PadRight(bVector.Length)), bVector, bVector.Length);
Byte[] Cryptograph = null; // encrypted data
using (Aes Aes = Aes.Create())
{
try
{
using (MemoryStream Memory = new MemoryStream())
{
using (CryptoStream Encryptor = new CryptoStream(Memory,
Aes.CreateEncryptor(bKey, bVector),
CryptoStreamMode.Write))
{
Encryptor.Write(plainBytes, 0, plainBytes.Length);
Encryptor.FlushFinalBlock();
Cryptograph = Memory.ToArray();
}
}
}
catch
{
Cryptograph = null;
}
return Convert.ToBase64String(Cryptograph);
}
}
/// <summary>
/// AES decrypt
/// </summary>
/// <param name="data">Encrypted data</param>
/// <param name="key">Key, requires 32 bits</param>
/// <param name="vector">IV,requires 16 bits</param>
/// <returns>Decrypted string</returns>
public static string AESDecrypt(string data, string key, string vector)
{
Check.Argument.IsNotEmpty(data, nameof(data));
Check.Argument.IsNotEmpty(key, nameof(key));
Check.Argument.IsNotOutOfRange(key.Length, 32, 32, nameof(key));
Check.Argument.IsNotEmpty(vector, nameof(vector));
Check.Argument.IsNotOutOfRange(vector.Length, 16, 16, nameof(vector));
Byte[] encryptedBytes = Convert.FromBase64String(data);
Byte[] bKey = new Byte[32];
Array.Copy(Encoding.UTF8.GetBytes(key.PadRight(bKey.Length)), bKey, bKey.Length);
Byte[] bVector = new Byte[16];
Array.Copy(Encoding.UTF8.GetBytes(vector.PadRight(bVector.Length)), bVector, bVector.Length);
Byte[] original = null; // decrypted data
using (Aes Aes = Aes.Create())
{
try
{
using (MemoryStream Memory = new MemoryStream(encryptedBytes))
{
using (CryptoStream Decryptor = new CryptoStream(Memory, Aes.CreateDecryptor(bKey, bVector), CryptoStreamMode.Read))
{
using (MemoryStream originalMemory = new MemoryStream())
{
Byte[] Buffer = new Byte[1024];
Int32 readBytes = 0;
while ((readBytes = Decryptor.Read(Buffer, 0, Buffer.Length)) > 0)
{
originalMemory.Write(Buffer, 0, readBytes);
}
original = originalMemory.ToArray();
}
}
}
}
catch
{
original = null;
}
return Encoding.UTF8.GetString(original);
}
}
/// <summary>
/// AES encrypt ( no IV)
/// </summary>
/// <param name="data">Raw data</param>
/// <param name="key">Key, requires 32 bits</param>
/// <returns>Encrypted string</returns>
public static string AESEncrypt(string data, string key)
{
Check.Argument.IsNotEmpty(data, nameof(data));
Check.Argument.IsNotEmpty(key, nameof(key));
Check.Argument.IsNotOutOfRange(key.Length, 32, 32, nameof(key));
using (MemoryStream mStream = new MemoryStream())
{
using (Aes aes = Aes.Create())
{
byte[] plainBytes = Encoding.UTF8.GetBytes(data);
Byte[] bKey = new Byte[32];
Array.Copy(Encoding.UTF8.GetBytes(key.PadRight(bKey.Length)), bKey, bKey.Length);
aes.Mode = CipherMode.ECB;
aes.Padding = PaddingMode.PKCS7;
aes.KeySize = 128;
//aes.Key = _key;
aes.Key = bKey;
//aes.IV = _iV;
using (CryptoStream cryptoStream = new CryptoStream(mStream, aes.CreateEncryptor(), CryptoStreamMode.Write))
{
try
{
cryptoStream.Write(plainBytes, 0, plainBytes.Length);
cryptoStream.FlushFinalBlock();
return Convert.ToBase64String(mStream.ToArray());
}
catch (Exception ex)
{
return null;
}
}
}
}
}
/// <summary>
/// AES decrypt( no IV)
/// </summary>
/// <param name="data">encrypted data</param>
/// <param name="key">Key, requires 32 bits</param>
/// <returns>Decrypted string</returns>
public static string AESDecrypt(string data, string key)
{
Check.Argument.IsNotEmpty(data, nameof(data));
Check.Argument.IsNotEmpty(key, nameof(key));
Check.Argument.IsNotOutOfRange(key.Length, 32, 32, nameof(key));
Byte[] encryptedBytes = Convert.FromBase64String(data);
Byte[] bKey = new Byte[32];
Array.Copy(Encoding.UTF8.GetBytes(key.PadRight(bKey.Length)), bKey, bKey.Length);
using (MemoryStream mStream = new MemoryStream(encryptedBytes))
{
//mStream.Write( encryptedBytes, 0, encryptedBytes.Length );
//mStream.Seek( 0, SeekOrigin.Begin );
using (Aes aes = Aes.Create())
{
aes.Mode = CipherMode.ECB;
aes.Padding = PaddingMode.PKCS7;
aes.KeySize = 128;
aes.Key = bKey;
//aes.IV = _iV;
using (CryptoStream cryptoStream = new CryptoStream(mStream, aes.CreateDecryptor(), CryptoStreamMode.Read))
{
try
{
byte[] tmp = new byte[encryptedBytes.Length + 32];
int len = cryptoStream.Read(tmp, 0, encryptedBytes.Length + 32);
byte[] ret = new byte[len];
Array.Copy(tmp, 0, ret, 0, len);
return Encoding.UTF8.GetString(ret);
}
catch (Exception ex)
{
return null;
}
}
}
}
}
#endregion
#region RSA
/// <summary>
/// RSA encrypt
/// </summary>
/// <param name="publicKey">public key</param>
/// <param name="srcString">src string</param>
/// <returns>encrypted string</returns>
public static string RSAEncrypt(string publicKey, string srcString)
{
Check.Argument.IsNotEmpty(publicKey, nameof(publicKey));
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
using (RSA rsa = RSA.Create())
{
rsa.FromJsonString(publicKey);
byte[] encryptBytes = rsa.Encrypt(Encoding.UTF8.GetBytes(srcString), RSAEncryptionPadding.OaepSHA1);
return encryptBytes.ToHexString();
}
}
/// <summary>
/// RSA decrypt
/// </summary>
/// <param name="privateKey">private key</param>
/// <param name="srcString">encrypted string</param>
/// <returns>Decrypted string</returns>
public static string RSADecrypt(string privateKey, string srcString)
{
Check.Argument.IsNotEmpty(privateKey, nameof(privateKey));
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
using (RSA rsa = RSA.Create())
{
rsa.FromJsonString(privateKey);
byte[] srcBytes = srcString.ToBytes();
byte[] decryptBytes = rsa.Decrypt(srcBytes, RSAEncryptionPadding.OaepSHA1);
return Encoding.UTF8.GetString(decryptBytes);
}
}
/// <summary>
/// Create an RSA key
/// </summary>
/// <returns></returns>
public static RSAKey CreateRsaKey()
{
using (RSA rsa = RSA.Create())
{
string publicKey = rsa.ToJsonString(false);
string privateKey = rsa.ToJsonString(true);
return new RSAKey()
{
PublicKey = publicKey,
PrivateKey = privateKey,
Exponent = rsa.ExportParameters(false).Exponent.ToHexString(),
Modulus = rsa.ExportParameters(false).Modulus.ToHexString()
};
}
}
#endregion
#region MD5
/// <summary>
/// MD5 hash
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <returns></returns>
public static string Md5(string srcString)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
using (MD5 md5 = MD5.Create())
{
byte[] bytes_md5_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_md5_out = md5.ComputeHash(bytes_md5_in);
string str_md5_out = BitConverter.ToString(bytes_md5_out);
str_md5_out = str_md5_out.Replace("-", "");
return str_md5_out;
}
}
#endregion
#region HMACMD5
/// <summary>
/// MD5 hash
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <param name="key">encrypte key</param>
/// <returns></returns>
public static string HMACMD5(string srcString, string key)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
Check.Argument.IsNotEmpty(key, nameof(key));
byte[] secrectKey = Encoding.UTF8.GetBytes(key);
using (HMACMD5 md5 = new HMACMD5(secrectKey))
{
byte[] bytes_md5_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_md5_out = md5.ComputeHash(bytes_md5_in);
string str_md5_out = BitConverter.ToString(bytes_md5_out);
str_md5_out = str_md5_out.Replace("-", "");
return str_md5_out;
}
}
#endregion
#region SHA1
/// <summary>
/// SHA1加密
/// </summary>
/// <param name="str">The string to be encrypted</param>
/// <returns></returns>
public static string Sha1(string str)
{
Check.Argument.IsNotEmpty(str, "SHA1待加密字符");
using (SHA1 sha1 = SHA1.Create())
{
byte[] bytes_sha1_in = Encoding.UTF8.GetBytes(str);
byte[] bytes_sha1_out = sha1.ComputeHash(bytes_sha1_in);
string str_sha1_out = BitConverter.ToString(bytes_sha1_out);
str_sha1_out = str_sha1_out.Replace("-", "");
return str_sha1_out;
}
}
#endregion
#region SHA256
/// <summary>
/// SHA256 encrypt
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <returns></returns>
public static string Sha256(string srcString)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
using (SHA256 sha256 = SHA256.Create())
{
byte[] bytes_sha256_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_sha256_out = sha256.ComputeHash(bytes_sha256_in);
string str_sha256_out = BitConverter.ToString(bytes_sha256_out);
str_sha256_out = str_sha256_out.Replace("-", "");
return str_sha256_out;
}
}
#endregion
#region SHA384
/// <summary>
/// SHA384 encrypt
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <returns></returns>
public static string Sha384(string srcString)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
using (SHA384 sha384 = SHA384.Create())
{
byte[] bytes_sha384_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_sha384_out = sha384.ComputeHash(bytes_sha384_in);
string str_sha384_out = BitConverter.ToString(bytes_sha384_out);
str_sha384_out = str_sha384_out.Replace("-", "");
return str_sha384_out;
}
}
#endregion
#region SHA512
/// <summary>
/// SHA512 encrypt
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <returns></returns>
public static string Sha512(string srcString)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
using (SHA512 sha512 = SHA512.Create())
{
byte[] bytes_sha512_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_sha512_out = sha512.ComputeHash(bytes_sha512_in);
string str_sha512_out = BitConverter.ToString(bytes_sha512_out);
str_sha512_out = str_sha512_out.Replace("-", "");
return str_sha512_out;
}
}
#endregion
#region HMACSHA1
/// <summary>
/// HMAC_SHA1
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <param name="key">encrypte key</param>
/// <returns></returns>
public static string HMACSHA1(string srcString, string key)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
Check.Argument.IsNotEmpty(key, nameof(key));
byte[] secrectKey = Encoding.UTF8.GetBytes(key);
using (HMACSHA1 hmac = new HMACSHA1(secrectKey))
{
hmac.Initialize();
byte[] bytes_hmac_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_hamc_out = hmac.ComputeHash(bytes_hmac_in);
string str_hamc_out = BitConverter.ToString(bytes_hamc_out);
str_hamc_out = str_hamc_out.Replace("-", "");
return str_hamc_out;
}
}
#endregion
#region HMACSHA256
/// <summary>
/// HMAC_SHA256
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <param name="key">encrypte key</param>
/// <returns></returns>
public static string HMACSHA256(string srcString, string key)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
Check.Argument.IsNotEmpty(key, nameof(key));
byte[] secrectKey = Encoding.UTF8.GetBytes(key);
using (HMACSHA256 hmac = new HMACSHA256(secrectKey))
{
hmac.Initialize();
byte[] bytes_hmac_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_hamc_out = hmac.ComputeHash(bytes_hmac_in);
string str_hamc_out = BitConverter.ToString(bytes_hamc_out);
str_hamc_out = str_hamc_out.Replace("-", "");
return str_hamc_out;
}
}
#endregion
#region HMACSHA384
/// <summary>
/// HMAC_SHA384
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <param name="key">encrypte key</param>
/// <returns></returns>
public static string HMACSHA384(string srcString, string key)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
Check.Argument.IsNotEmpty(key, nameof(key));
byte[] secrectKey = Encoding.UTF8.GetBytes(key);
using (HMACSHA384 hmac = new HMACSHA384(secrectKey))
{
hmac.Initialize();
byte[] bytes_hmac_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_hamc_out = hmac.ComputeHash(bytes_hmac_in);
string str_hamc_out = BitConverter.ToString(bytes_hamc_out);
str_hamc_out = str_hamc_out.Replace("-", "");
return str_hamc_out;
}
}
#endregion
#region HMACSHA512
/// <summary>
/// HMAC_SHA512
/// </summary>
/// <param name="srcString">The string to be encrypted</param>
/// <param name="key">encrypte key</param>
/// <returns></returns>
public static string HMACSHA512(string srcString, string key)
{
Check.Argument.IsNotEmpty(srcString, nameof(srcString));
Check.Argument.IsNotEmpty(key, nameof(key));
byte[] secrectKey = Encoding.UTF8.GetBytes(key);
using (HMACSHA512 hmac = new HMACSHA512(secrectKey))
{
hmac.Initialize();
byte[] bytes_hmac_in = Encoding.UTF8.GetBytes(srcString);
byte[] bytes_hamc_out = hmac.ComputeHash(bytes_hmac_in);
string str_hamc_out = BitConverter.ToString(bytes_hamc_out);
str_hamc_out = str_hamc_out.Replace("-", "");
return str_hamc_out;
}
}
#endregion
#region Machine Key
/// <summary>
/// Create decryptionKey
/// </summary>
/// <param name="length">decryption key length range is 16 -48</param>
/// <returns>DecryptionKey</returns>
public static string CreateDecryptionKey(int length)
{
Check.Argument.IsNotOutOfRange(length, 16, 48, nameof(length));
return CreateMachineKey(length);
}
/// <summary>
/// Create validationKey
/// </summary>
/// <param name="length"></param>
/// <returns>ValidationKey</returns>
public static string CreateValidationKey(int length)
{
Check.Argument.IsNotOutOfRange(length, 48, 128, nameof(length));
return CreateMachineKey(length);
}
/// <summary>
/// 使用加密服务提供程序实现加密生成随机数
///
/// 说明：
/// validationKey 的值可以是48到128个字符长，强烈建议使用可用的最长密钥
/// decryptionKey 的值可以是16到48字符长，建议使用48字符长
///
/// 使用方式：
/// string decryptionKey = EncryptManager.CreateMachineKey(48);
/// string validationKey = EncryptManager.CreateMachineKey(128);
/// </summary>
/// <param name="length">长度</param>
/// <returns></returns>
private static string CreateMachineKey(int length)
{
byte[] random = new byte[length / 2];
RandomNumberGenerator rng = RandomNumberGenerator.Create();
rng.GetBytes(random);
StringBuilder machineKey = new StringBuilder(length);
for (int i = 0; i < random.Length; i++)
{
machineKey.Append(string.Format("{0:X2}", random[i]));
}
return machineKey.ToString();
}
#endregion
#region Base64
#region Base64加密解密
/// <summary>
/// Base64 encrypt
/// </summary>
/// <param name="input">input value</param>
/// <returns></returns>
public static string Base64Encrypt(string input)
{
return Base64Encrypt(input, Encoding.UTF8);
}
/// <summary>
/// Base64 encrypt
/// </summary>
/// <param name="input">input value</param>
/// <param name="encoding">text encoding</param>
/// <returns></returns>
public static string Base64Encrypt(string input, Encoding encoding)
{
return Convert.ToBase64String(encoding.GetBytes(input));
}
/// <summary>
/// Base64 decrypt
/// </summary>
/// <param name="input">input value</param>
/// <returns></returns>
public static string Base64Decrypt(string input)
{
return Base64Decrypt(input, Encoding.UTF8);
}
/// <summary>
/// Base64 decrypt
/// </summary>
/// <param name="input">input value</param>
/// <param name="encoding">text encoding</param>
/// <returns></returns>
public static string Base64Decrypt(string input, Encoding encoding)
{
return encoding.GetString(Convert.FromBase64String(input));
}
#endregion
#endregion
}
}