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Stored procedures
Checks the correspondence between a signature and a file. The signature was stored as a Buffer variable.
Example
MyCertificate is Certificate

// Open the certificate picker of Windows
MyCertificate = CertificateSelect()

// Cancellation or error
IF MyCertificate.Name = "" THEN
RETURN
END

// Checks whether the selected certificate is valid for signing
IF MyCertificate.ValidForSignature = False THEN
Info("The selected certificate cannot be used to generate a signature.")
RETURN
END

// Retrieve the buffer containing the signature
bufSignature is Buffer
bufSignature = CertificateSignFile(FullFileName, MyCertificate)


// Check the signature
SWITCH CertificateCheckFileSignatureBuffer(FullFileName, bufSignature)
CASE certificateOk: Info("Valid signature and trusted certificate")
CASE certificateInvalid: Info("Invalid signature or certificate")
CASE certificateExpired: Info("Valid signature but expired certificate")
CASE certificateUntrusted: Info("Valid signature but root confidence "+  ...
"of certificate not reliable")
END
Syntax
<Result> = CertificateCheckBufferSignatureFile(<File name> , <Signature buffer>)
<Result>: Integer
Result of signature check:
certificateExpired (3)Valid signature but expired certificate.
certificateInvalid (0)Invalid signature or certificate.
certificateOk (1)Trusted signature and certificate.
certificateUntrusted (4)Valid signature but untrusted certificate root.
<File name>: Character string
Full or relative name of the file on which the check must be performed.
<Signature buffer>: Buffer
Buffer containing the signature of the file. This buffer is returned by CertificateSignFile.
Remarks
Component: wd290std.dll
Minimum version required
  • Version 16
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Last update: 09/12/2023

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