在dotnet核心中对字符串进行哈希处理时,我得到了奇怪的结果,我发现了类似的问题:
我已经安装了nuget软件包 System.Security.Cryptography.Algorithms (v 4.3.0)
也尝试使用 GetEncoding(0)获取sys默认编码。也不起作用。
解决方案我不确定'SHA-1 Online'如何代表您的哈希,但是因为它是一个哈希,它可以包含无法在(UTF8)字符串中表示的字符。我认为您最好使用 Convert.ToBase64String()轻松表示字符串中的字节数组哈希:
var hashString = Convert.ToBase64String(hash);要将其转换回字节数组,请使用 Convert.FromBase64String( ):
var bytes = Convert.FromBase64String(hashString);另请参阅:将md5哈希字节数组转换为字符串。其中显示了表示字符串中哈希的多种方法。例如, hash.ToString( X)将使用十六进制表示形式。
针对 broodjepoep 。 :-)
I get strange results when hashing a string in dotnet core I have found this similar question: Computing SHA1 with ASP.NET Core and have found how to convert a byte array to string in core
this is my code:
private static string CalculateSha1(string text) { var enc = Encoding.GetEncoding(65001); // utf-8 code page byte[] buffer = enc.GetBytes(text); var sha1 = System.Security.Cryptography.SHA1.Create(); var hash = sha1.ComputeHash(buffer); return enc.GetString(hash); }and this is my test:
string test = "broodjepoep"; // forgive me string shouldBe = "b2bc870e4ddf0e15486effd19026def2c8a54753"; // according to www.sha1-online/ string wouldBe = CalculateSha1(test); System.Diagnostics.Debug.Assert(shouldBe.Equals(wouldBe));output:
���M�Hn�ѐ&��ȥGS
I have the nuget package System.Security.Cryptography.Algorithms installed (v 4.3.0)
Also tried with GetEncoding(0) to get the sys default coding. Also did not work.
解决方案I'm not sure how 'SHA-1 Online' represents your hash, buts since it's a hash, it can contain characters that can't be represented in a (UTF8) string. I think you're better off using Convert.ToBase64String() to easily represent the byte-array hash in a string:
var hashString = Convert.ToBase64String(hash);To convert it back to a byte-array, use Convert.FromBase64String():
var bytes = Convert.FromBase64String(hashString);Also see: Converting a md5 hash byte array to a string. Which shows there a multiple ways to represent hash in a string. For example, hash.ToString("X") will use a hexadecimal representation.
Kudos for broodjepoep, by the way. :-)
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