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MD5Hepler.cs
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98 lines (95 loc) · 3.59 KB
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using System;
using System.Security.Cryptography;
using System.Text;
namespace Blog.Core.Common.Helper
{
public class MD5Helper
{
/// <summary>
/// 16位MD5加密
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
public static string MD5Encrypt16(string password)
{
var md5 = MD5.Create();
string t2 = BitConverter.ToString(md5.ComputeHash(Encoding.Default.GetBytes(password)), 4, 8);
t2 = t2.Replace("-", string.Empty);
return t2;
}
/// <summary>
/// 32位MD5加密
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
public static string MD5Encrypt32(string password = "")
{
string pwd = string.Empty;
try
{
if (!string.IsNullOrEmpty(password) && !string.IsNullOrWhiteSpace(password))
{
MD5 md5 = MD5.Create(); //实例化一个md5对像
// 加密后是一个字节类型的数组，这里要注意编码UTF8/Unicode等的选择
byte[] s = md5.ComputeHash(Encoding.UTF8.GetBytes(password));
// 通过使用循环，将字节类型的数组转换为字符串，此字符串是常规字符格式化所得
foreach (var item in s)
{
// 将得到的字符串使用十六进制类型格式。格式后的字符是小写的字母，如果使用大写（X）则格式后的字符是大写字符
pwd = string.Concat(pwd, item.ToString("X2"));
}
}
}
catch
{
throw new Exception($"错误的 password 字符串:【{password}】");
}
return pwd;
}
/// <summary>
/// 64位MD5加密
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
public static string MD5Encrypt64(string password)
{
// 实例化一个md5对像
// 加密后是一个字节类型的数组，这里要注意编码UTF8/Unicode等的选择
MD5 md5 = MD5.Create();
byte[] s = md5.ComputeHash(Encoding.UTF8.GetBytes(password));
return Convert.ToBase64String(s);
}
/// <summary>
/// Sha1加密
/// </summary>
/// <param name="str">要加密的字符串</param>
/// <returns>加密后的十六进制的哈希散列（字符串）</returns>
public static string Sha1(string str, string format = "x2")
{
var buffer = Encoding.UTF8.GetBytes(str);
var data = SHA1.Create().ComputeHash(buffer);
var sb = new StringBuilder();
foreach (var t in data)
{
sb.Append(t.ToString(format));
}
return sb.ToString();
}
/// <summary>
/// Sha256加密
/// </summary>
/// <param name="str">要加密的字符串</param>
/// <returns>加密后的十六进制的哈希散列（字符串）</returns>
public static string Sha256(string str, string format = "x2")
{
var buffer = Encoding.UTF8.GetBytes(str);
var data = SHA256.Create().ComputeHash(buffer);
var sb = new StringBuilder();
foreach (var t in data)
{
sb.Append(t.ToString(format));
}
return sb.ToString();
}
}
}