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December 2, 2019 23:30
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http://www.voidcn.com/article/p-dspqubwz-yn.html and it is also at: https://blog.csdn.net/jiangfeng0213/article/details/84127742
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| using System; | |
| using System.Security.Cryptography; | |
| using System.Text; | |
| namespace Hash | |
| { | |
| public class Hash | |
| { | |
| public Hash() { } | |
| public enum HashType : int | |
| { | |
| MD5, | |
| SHA1, | |
| SHA256, | |
| SHA512 | |
| } | |
| public static string GetHash(string text, HashType hashType) | |
| { | |
| string hashString; | |
| switch (hashType) | |
| { | |
| case HashType.MD5: | |
| hashString = GetMD5(text); | |
| break; | |
| case HashType.SHA1: | |
| hashString = GetSHA1(text); | |
| break; | |
| case HashType.SHA256: | |
| hashString = GetSHA256(text); | |
| break; | |
| case HashType.SHA512: | |
| hashString = GetSHA512(text); | |
| break; | |
| default: | |
| hashString = "Invalid Hash Type"; | |
| break; | |
| } | |
| return hashString; | |
| } | |
| public static bool CheckHash(string original, string hashString, HashType hashType) | |
| { | |
| string originalHash = GetHash(original, hashType); | |
| return (originalHash == hashString); | |
| } | |
| private static string GetMD5(string text) | |
| { | |
| UnicodeEncoding UE = new UnicodeEncoding(); | |
| byte[] hashValue; | |
| byte[] message = UE.GetBytes(text); | |
| MD5 hashString = new MD5CryptoServiceProvider(); | |
| string hex = ""; | |
| hashValue = hashString.ComputeHash(message); | |
| foreach (byte x in hashValue) | |
| { | |
| hex += String.Format("{0:x2}", x); | |
| } | |
| return hex; | |
| } | |
| private static string GetSHA1(string text) | |
| { | |
| UnicodeEncoding UE = new UnicodeEncoding(); | |
| byte[] hashValue; | |
| byte[] message = UE.GetBytes(text); | |
| SHA1Managed hashString = new SHA1Managed(); | |
| string hex = ""; | |
| hashValue = hashString.ComputeHash(message); | |
| foreach (byte x in hashValue) | |
| { | |
| hex += String.Format("{0:x2}", x); | |
| } | |
| return hex; | |
| } | |
| private static string GetSHA256(string text) | |
| { | |
| UnicodeEncoding UE = new UnicodeEncoding(); | |
| byte[] hashValue; | |
| byte[] message = UE.GetBytes(text); | |
| SHA256Managed hashString = new SHA256Managed(); | |
| string hex = ""; | |
| hashValue = hashString.ComputeHash(message); | |
| foreach (byte x in hashValue) | |
| { | |
| hex += String.Format("{0:x2}", x); | |
| } | |
| return hex; | |
| } | |
| private static string GetSHA512(string text) | |
| { | |
| UnicodeEncoding UE = new UnicodeEncoding(); | |
| byte[] hashValue; | |
| byte[] message = UE.GetBytes(text); | |
| SHA512Managed hashString = new SHA512Managed(); | |
| string hex = ""; | |
| hashValue = hashString.ComputeHash(message); | |
| foreach (byte x in hashValue) | |
| { | |
| hex += String.Format("{0:x2}", x); | |
| } | |
| return hex; | |
| } | |
| } | |
| } |
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