CertificateExtract (Function)

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CertificateExtract (Function)

In french: CertificatExtrait

Extracts a certificate from a signature buffer or from a print duplicate.

Example

// Extract a certificate from the buffer
MyCertificate is Certificate
MyCertificate = CertificateExtract(buffSignature, certificateFromBuffer)

// Checks whether the signature does not correspond
// or whether the buffer is incorrect (details in ErrorInfo)
IF MyCertificate = Null THEN
Error("Error while retrieving the certificate." + CR + ErrorInfo())
RETURN
END

// Displays the trust level of the certificate
SWITCH MyCertificate..Reliability
CASE certificateOk: Info("Valid certificate")
CASE certificateInvalid: Info("Invalid certificate")
CASE certificateUntrusted: Info("Trust root of certificate not reliable")
CASE certificateExpired: Info("Expired validation dates of certificate")
END

Syntax

<Result> = CertificateExtract(<Signed Element> [, <Option>])

<Result>: Certificate variable

Certificate variable extracted from the element containing the signature.

<Signed Element>: Buffer variable or character string

Corresponds to:
a signature buffer. This buffer was obtained via CertificateSignString or CertificateSignFile.
the path of a signed print duplicate. The print duplicate was signed with iParameterDuplicate.

<Option>: Optional Integer constant

Specifies the type of element used:
certificateFromBuffer
(Default value) The element is a signature buffer.
certificateFromDuplicate The element is the path of a signed duplicate file.

Component : wd250std.dll