Xojo Plugin

X509Certificate GetCertHash SHA256

See more Certificates Examples

Shows how to get the SHA256 hash of a certificate. Xojo Plugin

Dim success As Boolean
success = 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
    System.DebugLog(cert.LastErrorText)
    Return
End If

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

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

System.DebugLog("Certificate hash in base64 = " + certHash)