Xbase++

X509Certificate GetCertHash SHA256

See more Certificates Examples

Shows how to get the SHA256 hash of a certificate. Xbase++

LOCAL nSuccess
LOCAL oCert
LOCAL oBdDer
LOCAL cCertHash

nSuccess := 0

oCert := CreateObject("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..
nSuccess := oCert:LoadFromFile("qa_data/certs/cert_test123.cer")
IF (nSuccess != 1)
    ? oCert:LastErrorText
    oCert:destroy()
    RETURN
ENDIF

//  Get the binary DER of the certificae, and compute the SHA256 hash:
oBdDer := CreateObject("Chilkat.BinData")
oCert:ExportCertDerBd(oBdDer)

//  Get the base64 representation of the SHA256 hash.
cCertHash := oBdDer:GetHash("sha256", "base64")

? "Certificate hash in base64 = " + cCertHash

oCert:destroy()
oBdDer:destroy()