VB.NET

X509Certificate GetCertHash SHA256

See more Certificates Examples

Shows how to get the SHA256 hash of a certificate. VB.NET

Dim success As Boolean = False

Dim cert As New Chilkat.Cert

' Load a certificate object with a certificate.
' The certificate object could have come from any source,
' or perhaps was obtained from another Chilkat function.
' The source does not matter.  What matters is that we have
' a cert object loaded with the certificate..
success = cert.LoadFromFile("qa_data/certs/cert_test123.cer")
If (success <> True) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If


' Get the binary DER of the certificae, and compute the SHA256 hash:
Dim bdDer As New Chilkat.BinData
cert.ExportCertDerBd(bdDer)

' Get the base64 representation of the SHA256 hash.
Dim certHash As String = bdDer.GetHash("sha256","base64")

Debug.WriteLine("Certificate hash in base64 = " & certHash)