init lserp cs 5.0

2026-07-10 15:25:05 +08:00
commit 90f3fda86a
3799 changed files with 976868 additions and 0 deletions
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+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Security.Cryptography;
+
+namespace Zhaizj.Framework {
+
+    /// <summary>
+    /// 常用 hash 算法类型
+    /// </summary>
+    public enum HashType {
+        MD5,
+        MD5_16,
+        SHA1,
+        SHA256,
+        SHA384,
+        SHA512
+    }
+
+    /// <summary>
+    /// 封装了常用 hash 算法
+    /// </summary>
+    public class HashTool : IHashTool {
+
+        /// <summary>
+        /// 根据指定的 hash 算法，加密字符串(比如密码)
+        /// </summary>
+        /// <param name="pwd">需要 hash 的字符串</param>
+        /// <param name="ht">hash 算法类型</param>
+        /// <returns></returns>
+        public virtual String Get( String pwd, HashType ht ) {
+
+            HashAlgorithm algorithm;
+
+            if (ht == HashType.MD5 || ht == HashType.MD5_16)
+                algorithm = MD5.Create();
+            else if (ht == HashType.SHA1)
+                algorithm = SHA1CryptoServiceProvider.Create();
+            else if (ht == HashType.SHA256)
+                algorithm = SHA256Managed.Create();
+            else if (ht == HashType.SHA384)
+                algorithm = SHA384Managed.Create();
+            else if (ht == HashType.SHA512)
+                algorithm = SHA512Managed.Create();
+            else
+                algorithm = MD5.Create();
+
+            byte[] buffer = Encoding.UTF8.GetBytes( pwd );
+            String result = BitConverter.ToString( algorithm.ComputeHash( buffer ) ).Replace( "-", "" );
+            if (ht == HashType.MD5_16) return result.Substring( 8, 16 ).ToLower();
+            return result;
+        }
+
+        /// <summary>
+        /// 根据 hash 算法和指定的 salt，加密字符串
+        /// </summary>
+        /// <param name="pwd"></param>
+        /// <param name="salt">指定的 salt</param>
+        /// <param name="ht">hash 算法类型</param>
+        /// <returns></returns>
+        public virtual String GetBySalt( String pwd, String salt, HashType ht ) {
+            return Get( pwd + salt, ht );
+        }
+
+        /// <summary>
+        /// 获取随机密码(由英文字母和数字构成)
+        /// </summary>
+        /// <param name="passwordLength">密码长度</param>
+        /// <returns></returns>
+        public virtual String GetRandomPassword( int passwordLength ) {
+            return GetRandomPassword( passwordLength, true );
+        }
+
+        /// <summary>
+        /// 获取随机密码(由英文字母和数字构成)
+        /// </summary>
+        /// <param name="passwordLength">密码长度</param>
+        /// <param name="isLower">结果是否小写</param>
+        /// <returns></returns>
+        public virtual String GetRandomPassword( int passwordLength, Boolean isLower ) {
+
+            String charList = isLower ? "abcdefghijklmnopqrstuvwxyz0123456789" : "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+            byte[] buffer = new byte[passwordLength];
+
+            RNGCryptoServiceProvider.Create().GetBytes( buffer );
+
+            char[] chars = new char[passwordLength];
+            int charCount = charList.Length;
+            for (int i = 0; i < passwordLength; i++) {
+                chars[i] = charList[(int)buffer[i] % charCount];
+            }
+
+            return new string( chars );
+        }
+
+        /// <summary>
+        /// 根据指定长度获取salt
+        /// </summary>
+        /// <param name="size">salt的长度</param>
+        /// <returns></returns>
+        public virtual String GetSalt( int size ) {
+            byte[] buffer = new byte[size];
+            RNGCryptoServiceProvider.Create().GetBytes( buffer );
+            return BitConverter.ToString( buffer ).Replace( "-", "" );
+        }
+
+    }
+
+}