[研究][C#][ASP.NET]計算字串SHA256值

[研究][C#][ASP.NET]計算字串SHA256值

2022-3-17

參考

HashAlgorithm.ComputeHash 方法 (System.Security.Cryptography) | Microsoft Docs

https://docs.microsoft.com/zh-tw/dotnet/api/system.security.cryptography.hashalgorithm.computehash?view=net-6.0

private string GetStringSHA256(string input) { using (SHA256 sha256Hash = SHA256.Create()) { byte[] data = sha256Hash.ComputeHash(Encoding.UTF8.GetBytes(input)); var sBuilder = new StringBuilder(); for (int i = 0; i < data.Length; i++) { sBuilder.Append(data[i].ToString("x2")); } return sBuilder.ToString(); } }

可以下載 HashCalc 軟體測試比較

http://www.slavasoft.com/hashcalc/index.htm

注意，對字串和對檔案做SHA256是兩碼子事情。

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