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Stored procedures
CertificateCheckFileSignatureFile (Function)
In french: CertificatVérifieFichierSignatureFichier
Checks the correspondence between a signature and a file. The signature was kept as an external file.
Example
MyCertificate is Certificate
 
// Open the certificate picker of Windows
MyCertificate = CertificateSelect()
 
// Cancelation 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 file containing the signature
bufSignature is Buffer
bufSignature = CertificateSignFile(FullFileName, MyCertificate, MySignatureFile)
 
 
// Check the signature
SWITCH CertificateCheckFileSignatureFile(FullFileName, MySignatureFile)
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> = CertificateCheckFileSignatureFile(<File name> , <Signature file>)
<Result>: Integer constant
Result of signature check:
certificateExpiredValid signature but expired certificate.
certificateInvalidInvalid signature or certificate.
certificateUntrustedValid signature but untrusted certificate root.
certificateOkTrusted signature and certificate.
<File name>: Character string (with quotes)
Full or relative name of the file on which the check must be performed.
<Signature file>: Character string (with quotes)
Full or relative name of the external file containing the signature. This file is created by CertificateSignFile.
Remarks
Component : wd250std.dll
Minimum version required
  • Version 16
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