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(Ruby) Include the SigningCertificateV2 Authenticated Attribute in CAdES (CMS) SignatureDemonstrates how to include the SigningCertificateV2 authenticated attribute in a CMS (.p7m/.p7s) signature.
require 'chilkat' # This example assumes the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. crypt = Chilkat::CkCrypt2.new() cert = Chilkat::CkCert.new() success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123") if (success != true) print cert.lastErrorText() + "\n"; exit end # Tell the crypt component to use this cert. success = crypt.SetSigningCert(cert) if (success != true) print crypt.lastErrorText() + "\n"; exit end # The CadesEnabled property applies to all methods that create PKCS7 signatures. # To create a CAdES-BES signature, set this property equal to true. crypt.put_CadesEnabled(true) crypt.put_HashAlgorithm("sha256") # We can sign any type of file, creating a .p7s as output. # The .p7s contains the signature and also embeds the data of the file that is signed. inFile = "qa_data/pdf/sample.pdf" p7sFile = "qa_output/sample.pdf.p7s" jsonSigningAttrs = Chilkat::CkJsonObject.new() jsonSigningAttrs.UpdateInt("contentType",1) jsonSigningAttrs.UpdateInt("signingTime",1) jsonSigningAttrs.UpdateInt("messageDigest",1) # This is where we specify for the signingCertificateV2 attribute to be included: jsonSigningAttrs.UpdateInt("signingCertificateV2",1) crypt.put_SigningAttributes(jsonSigningAttrs.emit()) # By default, all the certs in the chain of authentication are included in the signature. # If desired, we can choose to only include the signing certificate: crypt.put_IncludeCertChain(false) # Create the CAdES-BES attached signature, which contains the original data. # Note: Chilkat's function naming is not accurate. CreateP7M creates a PKCS7 signature where the signed file # is contained within the signature. CreateP7S creates a detached PKCS7 signature where the signed file # is NOT contained within the signature. We want the data to be contained in the signature, therefore # we call CreateP7M even though we are naming our output file .p7s. success = crypt.CreateP7M(inFile,p7sFile) if (success == false) print crypt.lastErrorText() + "\n"; exit end # Verify the .p7s file and extract the original file from the .p7s. extractedToFilePath = "qa_output/sample.pdf" success = crypt.VerifyP7M(p7sFile,extractedToFilePath) if (success == false) print crypt.lastErrorText() + "\n"; exit end print "Success!" + "\n"; |
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