[英]How to get SHA256 certificate thumbprint?
如何獲得證書的SHA256指紋? SHA 256證書有兩個指紋,我能夠檢索主指紋但不能檢索SHA256。
如果您想獲得證書的SHA256指紋,您必須做一些手動工作。 內置Thumbprint屬性僅限SHA1。
喲必須使用SHA256類並計算證書內容的哈希值:
using System;
using System.Linq;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
namespace MyNamespace {
class MyClass {
public static String GetSha2Thumbprint(X509Certificate2 cert) {
Byte[] hashBytes;
using (var hasher = new SHA256Managed()) {
hashBytes = hasher.ComputeHash(cert.RawData);
}
return hashBytes.Aggregate(String.Empty, (str, hashByte) => str + hashByte.ToString("x2"));
}
}
}
並在必要時將此代碼轉換為擴展方法。
public static String GetSha2Thumbprint(X509Certificate2 cert)
{
Byte[] hashBytes;
using (var hasher = new SHA256Managed())
{
hashBytes = hasher.ComputeHash(cert.RawData);
}
string result = BitConverter.ToString(hashBytes)
// this will remove all the dashes in between each two haracters
.Replace("-", string.Empty).ToLower();
return result;
}
After getting the Hashbytes , you have to do the bit convertion.
這篇文章也對我有所幫助。 在Windows窗體中使用SHA-256哈希文本
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