如何获取证书的SHA256指纹? SHA 256证书有两个指纹,我能够检索主指纹而不是SHA256。
答案 0 :(得分:2)
如果您想获得证书的SHA256指纹,您必须做一些手动工作。内置Thumbprint属性仅限SHA1。
哟必须使用SHA256 class并对证书的内容进行计算哈希:
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"));
}
}
}
并在必要时将此代码转换为扩展方法。
答案 1 :(得分:0)
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.