/// <summary>
/// RC2加密
/// </summary>
/// <param name="plainStr">明文字符串</param>
/// <param name="key">加密密钥支持40~128长度，可以每8位递增（5到16个长度的字符串）</param>
/// <param name="iv">加密向量64位以上（8个字节上去字符串）</param>
/// <param name="isBase64Code">是否是Base64编码，否则是16进制编码</param>
/// <param name="mode">加密模式</param>
/// <param name="padding">填充模式</param>
/// <returns>密文</returns>
public static string RC2Encrypt(string plainStr, string key = DefaultRC2Key, string iv = DefaultRC2IV, bool isBase64Code = true, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
{
byte[] bKey = Encoding.UTF8.GetBytes(key);
byte[] bIV = Encoding.UTF8.GetBytes(iv);
byte[] byteArray = Encoding.UTF8.GetBytes(plainStr);
string encrypt = null;
var rc2 = new RC2CryptoServiceProvider();
try
{
rc2.Padding = padding;
rc2.Mode = mode;
using (var mStream = new MemoryStream())
{
using (var cStream = new CryptoStream(mStream, rc2.CreateEncryptor(bKey, bIV), CryptoStreamMode.Write))
{
cStream.Write(byteArray, 0, byteArray.Length);
cStream.FlushFinalBlock();
if (isBase64Code)
{
encrypt = Convert.ToBase64String(mStream.ToArray());
}
else
{
encrypt = ByteStrConvertHelper.ToString(mStream.ToArray());
}
}
}
}
catch { }
rc2.Clear();
return(encrypt);
}
/// <summary>
/// 生成16位的MD5散列值
/// </summary>
/// <param name="data">要算MD5的字符串</param>
/// <returns></returns>
public static string HashMD516(string data)
{
var md5 = new MD5CryptoServiceProvider();
byte[] bytes = Encoding.UTF8.GetBytes(data);
return(ByteStrConvertHelper.ToString(md5.ComputeHash(bytes)).Substring(8, 16));
}
/// <summary>
/// 对传入的明文密码进行Hash加密,密码不能为中文
/// </summary>
/// <param name="oriPassword">需要加密的明文密码</param>
/// <returns>经过Hash加密的密码</returns>
public static string HashPassword(string oriPassword)
{
if (string.IsNullOrEmpty(oriPassword))
{
throw new ArgumentException("oriPassword is valid");
}
var acii = new ASCIIEncoding();
var hashedBytes = Hash(acii.GetBytes(oriPassword));
return(ByteStrConvertHelper.ToString(hashedBytes));
}
/// <summary>
/// 对字符串进行SHA1散列
/// </summary>
/// <param name="data">需要哈稀的字符串</param>
/// <param name="isBase64">是否采用Base64</param>
/// <returns>密文</returns>
public static string HashSHA1(string data, bool isBase64 = false)
{
var StrRes = Encoding.UTF8.GetBytes(data);
HashAlgorithm iSHA = new SHA1CryptoServiceProvider();
StrRes = iSHA.ComputeHash(StrRes);
if (isBase64)
{
return(Convert.ToBase64String(StrRes));
}
else
{
return(ByteStrConvertHelper.ToString(StrRes));
}
}
/// <summary>
/// RSA加密
/// </summary>
/// <param name="plaintData">明文</param>
/// <param name="publicKey">RSA公钥</param>
/// <param name="isBase64">输出数据是否用Base64编码</param>
/// <returns></returns>
public static string RSAEncrypt(string plaintData, RSAParameters publicKey, bool isBase64 = false)
{
var rsa = new RSACryptoServiceProvider();
rsa.ImportParameters(publicKey);
var cipherbytes = rsa.Encrypt(Encoding.UTF8.GetBytes(plaintData), false);
if (isBase64)
{
return(Convert.ToBase64String(cipherbytes));
}
else
{
return(ByteStrConvertHelper.ToString(cipherbytes));
}
}
/// <summary>
/// 对字符串进行HmacSHA512散列
/// </summary>
/// <param name="key">密钥</param>
/// <param name="data">需要哈稀的字符串</param>
/// <param name="isBase64">是否采用Base64</param>
/// <returns>密文</returns>
public static string HmacSHA512(string key, string data, bool isBase64 = false)
{
var StrRes = Encoding.UTF8.GetBytes(data);
var bkey = Encoding.UTF8.GetBytes(key);
var hmacSha1 = new HMACSHA512(bkey);
StrRes = hmacSha1.ComputeHash(StrRes);
if (isBase64)
{
return(Convert.ToBase64String(StrRes));
}
else
{
return(ByteStrConvertHelper.ToString(StrRes));
}
}
/// <summary>
/// SHA512加密，不可逆转
/// </summary>
/// <param name="data">string data:被加密的字符串</param>
/// <param name="isBase64">是否采用Base64</param>
/// <returns>返回加密后的字符串</returns>
public static string HashSHA512(string data, bool isBase64 = false)
{
SHA512 s512 = new SHA512CryptoServiceProvider();
byte[] byte1 = Encoding.Default.GetBytes(data);
byte1 = s512.ComputeHash(byte1);
s512.Clear();
if (isBase64)
{
return(Convert.ToBase64String(byte1));
}
else
{
return(ByteStrConvertHelper.ToString(byte1));
}
}
/// <summary>
/// SHA384加密，不可逆转
/// </summary>
/// <param name="data">string data:被加密的字符串</param>
/// <param name="isBase64">是否采用Base64</param>
/// <returns>返回加密后的字符串</returns>
public static string HashSHA384(string data, bool isBase64 = false)
{
SHA384 s384 = new SHA384CryptoServiceProvider();
byte[] byte1 = Encoding.UTF8.GetBytes(data);
byte1 = s384.ComputeHash(byte1);
s384.Clear();
if (isBase64)
{
return(Convert.ToBase64String(byte1));
}
else
{
return(ByteStrConvertHelper.ToString(byte1));
}
}
/// <summary>
/// AES加密
/// </summary>
/// <param name="plainbytes">明文字节数组</param>
/// <param name="key">加密密钥支持128(16字节)、192(24字节)、256位(32字节)的key</param>
/// <param name="iv">加密向量(16到19字节)</param>
/// <param name="isBase64Code">是否是Base64编码，否则是16进制编码</param>
/// <param name="mode">加密模式</param>
/// <param name="padding">填充模式</param>
/// <returns>密文</returns>
public static string AESEncrypt(byte[] plainbytes, string key = DefaultAESKey, string iv = DefaultAESIV, bool isBase64Code = true, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
{
byte[] bKey = Encoding.UTF8.GetBytes(key);
byte[] bIV = Encoding.UTF8.GetBytes(iv);
var encrypts = AESEncrypt(plainbytes, key, iv, mode, padding);
if (isBase64Code)
{
return(Convert.ToBase64String(encrypts));
}
else
{
return(ByteStrConvertHelper.ToString(encrypts));
}
}
/// <summary>
/// RSA解密
/// </summary>
/// <param name="encryptData">密文</param>
/// <param name="privateKey">RSA私钥</param>
/// <param name="isBase64">密文数据是否用Base64编码</param>
/// <returns></returns>
public static string RSADecrypt(string encryptData, string privateKey = DefaultRSAPublicKey, bool isBase64 = false)
{
byte[] bData;
if (isBase64)
{
bData = Convert.FromBase64String(encryptData);
}
else
{
bData = ByteStrConvertHelper.ToBytes(encryptData);
}
var rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(privateKey);
var cipherbytes = rsa.Decrypt(bData, false);
return(Encoding.UTF8.GetString(cipherbytes));
}
/// <summary>
/// 计算MD5
/// </summary>
/// <param name="data">要算MD5的字符串</param>
/// <param name="isBase64Code">是否是Base64编码</param>
/// <returns>MD5字符串</returns>
public static string HashMD5(string data, bool isBase64Code = false)
{
if (string.IsNullOrEmpty(data))
{
return("");
}
var md5 = new MD5CryptoServiceProvider();
byte[] bytes = Encoding.UTF8.GetBytes(data);
bytes = md5.ComputeHash(bytes);
md5.Clear();
if (isBase64Code)
{
return(Convert.ToBase64String(bytes));
}
else
{
return(ByteStrConvertHelper.ToString(bytes));
}
}
/// <summary>
/// AES解密
/// </summary>
/// <param name="encryptStr">密文字符串</param>
/// <param name="key">加密密钥支持128(16字节)、192(24字节)、256位(32字节)的key</param>
/// <param name="iv">加密向量(16到19字节)</param>
/// <param name="isBase64Code">是否是Base64编码，否则是16进制编码</param>
/// <param name="mode">加密模式</param>
/// <param name="padding">填充模式</param>
/// <returns>明文字节数组</returns>
public static byte[] AESDecryptToBytes(string encryptStr, string key = DefaultAESKey, string iv = DefaultAESIV, bool isBase64Code = true, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
{
byte[] bKey = Encoding.UTF8.GetBytes(key);
byte[] bIV = Encoding.UTF8.GetBytes(iv);
byte[] byteArray;
if (isBase64Code)
{
byteArray = Convert.FromBase64String(encryptStr);
}
else
{
byteArray = ByteStrConvertHelper.ToBytes(encryptStr);
}
byte[] decrypt = null;
var aes = Rijndael.Create();
try
{
aes.Mode = mode;
aes.Padding = padding;
using (var mStream = new MemoryStream())
{
using (var cStream = new CryptoStream(mStream, aes.CreateDecryptor(bKey, bIV), CryptoStreamMode.Write))
{
cStream.Write(byteArray, 0, byteArray.Length);
cStream.FlushFinalBlock();
}
decrypt = mStream.ToArray();
}
}
catch { }
aes.Clear();
return(decrypt);
}
/// <summary>
/// 使用指定的128字节的密钥对8字节数组进行3Des解密
/// </summary>
/// <param name="encryptStr">密文字符串</param>
/// <param name="key">密钥长度，可以为128（16字节），或是192（24字节）</param>
/// <param name="iv">加密向量长度64位以上(8个字节以上)</param>
/// <param name="isBase64Code">是否是Base64编码，否则是16进制编码</param>
/// <param name="mode">加密模式</param>
/// <param name="padding">填充模式</param>
/// <returns>已解密的字符串</returns>
public static string TripleDESDecrypt(string encryptStr, string key = Default3DESKey, string iv = DefaultDESKey, bool isBase64Code = true, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
{
byte[] bKey = Encoding.UTF8.GetBytes(key);
byte[] bIV = Encoding.UTF8.GetBytes(iv);
byte[] byteArray;
if (isBase64Code)
{
byteArray = Convert.FromBase64String(encryptStr);
}
else
{
byteArray = ByteStrConvertHelper.ToBytes(encryptStr);
}
string decrypt = null;
var tdsc = new TripleDESCryptoServiceProvider();
try
{
tdsc.Mode = mode;
tdsc.Padding = padding;
using (var mStream = new MemoryStream())
{
using (var cStream = new CryptoStream(mStream, tdsc.CreateDecryptor(bKey, bIV), CryptoStreamMode.Write))
{
cStream.Write(byteArray, 0, byteArray.Length);
cStream.FlushFinalBlock();
decrypt = Encoding.UTF8.GetString(mStream.ToArray());
}
}
}
catch { }
tdsc.Clear();
return(decrypt);
}
