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(Perl) Validate CAdES-T Signature (.p7m)Validates a CAdES-T CMS signature and extracts the time-stamp token and gets information about it. Also validates the time-stamp token. Note: This example requires Chilkat v9.5.0.78 or greater.
use chilkat(); # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. $crypt = chilkat::CkCrypt2->new(); # Indicate that the CAdES-T timestamp tokens must also pass validation for the signature to be validated. $cmsOptions = chilkat::CkJsonObject->new(); $cmsOptions->UpdateBool("ValidateTimestampTokens",1); $crypt->put_CmsOptions($cmsOptions->emit()); # Validate the .p7m and extract the original signed data to an output file. # Note: The timestampToken is an unauthenticated attribute. See the code below that parses the LastJsonData # for details about examining timestampToken. $success = $crypt->VerifyP7M("qa_data/cades/CAdES-T/Signature-C-T-1.p7m","qa_output/out.dat"); # Get information about the CMS signature in the LastJsonData. # The detailed results of the signature validation are available in LastJsonData. # (If the non-success return status was caused by an error such as "file not found", then the # LastJsonData would be empty.) # json is a JsonObject $json = $crypt->LastJsonData(); $json->put_EmitCompact(0); print $json->emit() . "\r\n"; # Here is a sample result: # See the parsing code below.. # Use this online tool to generate parsing code from sample JSON: # Generate Parsing Code from JSON # { # "pkcs7": { # "verify": { # "digestAlgorithms": [ # "sha256" # ], # "signerInfo": [ # { # "cert": { # "serialNumber": "00DCB814678CDB", # "issuerCN": "LevelBCAOK", # "issuerDN": "", # "digestAlgOid": "2.16.840.1.101.3.4.2.1", # "digestAlgName": "SHA256" # }, # "contentType": "1.2.840.113549.1.7.1", # "signingTime": "131203065741Z", # "messageDigest": "JJZt41Nt8VsYahP+Xti4rR3vBDkUfRd6gquItl6R5Os=", # "signingAlgOid": "1.2.840.113549.1.1.1", # "signingAlgName": "RSA-PKCSV-1_5", # "authAttr": { # "1.2.840.113549.1.9.3": { # "name": "contentType", # "oid": "1.2.840.113549.1.7.1" # }, # "1.2.840.113549.1.9.5": { # "name": "signingTime", # "utctime": "131203065741Z" # }, # "1.2.840.113549.1.9.4": { # "name": "messageDigest", # "digest": "JJZt41Nt8VsYahP+Xti4rR3vBDkUfRd6gquItl6R5Os=" # }, # "1.2.840.113549.1.9.16.2.47": { # "name": "signingCertificateV2", # "der": "MIGIMIGFMIGCBCBJrxOU0w0dWGsVovjLv9QDH3syB5mLVv3grSYA40x9IDBeMFOkUTBPMQswCQYDVQQGEwJGUjENMAsGA1UEChMERVRTSTEcMBoGA1UECwwTUGx1Z3Rlc3RzXzIwMTMtMjAxNDETMBEGA1UEAxMKTGV2ZWxCQ0FPSwIHANy4FGeM2w==" # } # }, # "unauthAttr": { # "1.2.840.113549.1.9.16.2.14": { # "name": "timestampToken", # "der": "MIIL+AYJKoZI...u7CfcjURNTY=", # "verify": { # "digestAlgorithms": [ # "sha256" # ], # "signerInfo": [ # { # "cert": { # "serialNumber": "01AA4592D36C61", # "issuerCN": "RootCAOK", # "issuerDN": "", # "digestAlgOid": "2.16.840.1.101.3.4.2.1", # "digestAlgName": "SHA256" # }, # "contentType": "1.2.840.113549.1.9.16.1.4", # "messageDigest": "NSsMUrfoyCQ0OszPE1YLx1j3EyyCiBmnE5Sua6ghu/Q=", # "signingAlgOid": "1.2.840.113549.1.1.1", # "signingAlgName": "RSA-PKCSV-1_5", # "authAttr": { # "1.2.840.113549.1.9.3": { # "name": "contentType", # "oid": "1.2.840.113549.1.9.16.1.4" # }, # "1.2.840.113549.1.9.4": { # "name": "messageDigest", # "digest": "NSsMUrfoyCQ0OszPE1YLx1j3EyyCiBmnE5Sua6ghu/Q=" # }, # "1.2.840.113549.1.9.16.2.47": { # "name": "signingCertificateV2", # "der": "MIGGMIGDMIGABCDB/np5UxvhcPnSxD2Kme+C88uXGCMWLAvFPHNvTApTWDBcMFGkTzBNMQswCQYDVQQGEwJGUjENMAsGA1UEChMERVRTSTEcMBoGA1UECwwTUGx1Z3Rlc3RzXzIwMTMtMjAxNDERMA8GA1UEAxMIUm9vdENBT0sCBwGqRZLTbGE=" # } # } # } # ] # }, # "timestampSignatureVerified": true, # "tstInfo": { # "tsaPolicyId": "1.3.6.1.4.1.2706.2.2.5.2.1.1.1", # "messageImprint": { # "hashAlg": "sha256", # "digest": "C8xEe9NA4X1cUyHGX9zG89ipmQ2byFs3aa+Xe4Fz2P0=", # "digestMatches": true # }, # "serialNumber": "313E162121D922", # "genTime": "20131203065742Z" # } # } # } # } # ] # } # } # } # $signingTime = chilkat::CkDtObj->new(); $authAttrSigningTimeUtctime = chilkat::CkDtObj->new(); $unauthAttrTimestampTokenTstInfoGenTime = chilkat::CkDtObj->new(); # Iterate over the hash algorithms used in the signature. $i = 0; $count_i = $json->SizeOfArray("pkcs7.verify.digestAlgorithms"); while ($i < $count_i) { $json->put_I($i); $strVal = $json->stringOf("pkcs7.verify.digestAlgorithms[i]"); $i = $i + 1; } # For each signer... $i = 0; $count_i = $json->SizeOfArray("pkcs7.verify.signerInfo"); while ($i < $count_i) { $json->put_I($i); # Get information about the certificate used by this signer. $certSerialNumber = $json->stringOf("pkcs7.verify.signerInfo[i].cert.serialNumber"); $certIssuerCN = $json->stringOf("pkcs7.verify.signerInfo[i].cert.issuerCN"); $certIssuerDN = $json->stringOf("pkcs7.verify.signerInfo[i].cert.issuerDN"); $certDigestAlgOid = $json->stringOf("pkcs7.verify.signerInfo[i].cert.digestAlgOid"); $certDigestAlgName = $json->stringOf("pkcs7.verify.signerInfo[i].cert.digestAlgName"); # Get additional information for this signer, such as the signingTime, signature algorithm, etc. $contentType = $json->stringOf("pkcs7.verify.signerInfo[i].contentType"); $json->DtOf("pkcs7.verify.signerInfo[i].signingTime",0,$signingTime); $messageDigest = $json->stringOf("pkcs7.verify.signerInfo[i].messageDigest"); $signingAlgOid = $json->stringOf("pkcs7.verify.signerInfo[i].signingAlgOid"); $signingAlgName = $json->stringOf("pkcs7.verify.signerInfo[i].signingAlgName"); # -------------------------------- # Examine authenticated attributes. # -------------------------------- # contentType if ($json->HasMember("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.3\"") == 1) { $authAttrContentTypeName = $json->stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.3\".name"); $authAttrContentTypeOid = $json->stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.3\".oid"); } # signingTime if ($json->HasMember("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.5\"") == 1) { $authAttrSigningTimeName = $json->stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.5\".name"); $json->DtOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.5\".utctime",0,$authAttrSigningTimeUtctime); } # messageDigest if ($json->HasMember("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.4\"") == 1) { $authAttrMessageDigestName = $json->stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.4\".name"); $authAttrMessageDigestDigest = $json->stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.4\".digest"); } # signingCertificateV2 if ($json->HasMember("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.16.2.47\"") == 1) { $authAttrSigningCertificateV2Name = $json->stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.16.2.47\".name"); $authAttrSigningCertificateV2Der = $json->stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.16.2.47\".der"); } # -------------------------------- # Examine unauthenticated attributes. # -------------------------------- # timestampToken (the timestampToken is what makes this signature a CAdES-T) if ($json->HasMember("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\"") == 1) { $unauthAttrTimestampTokenName = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".name"); $unauthAttrTimestampTokenDer = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".der"); # This is where we find out if the timestampToken's signature is valid. $unauthAttrTimestampTokenTimestampSignatureVerified = $json->BoolOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".timestampSignatureVerified"); $unauthAttrTimestampTokenTstInfoTsaPolicyId = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.tsaPolicyId"); $unauthAttrTimestampTokenTstInfoMessageImprintHashAlg = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.messageImprint.hashAlg"); $unauthAttrTimestampTokenTstInfoMessageImprintDigest = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.messageImprint.digest"); # Here is where we check to see if the digest in the timestampToken's messageImprint matches the digest of the signature of this signerInfo $unauthAttrTimestampTokenTstInfoMessageImprintDigestMatches = $json->BoolOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.messageImprint.digestMatches"); $unauthAttrTimestampTokenTstInfoSerialNumber = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.serialNumber"); # Here is where we get the date/time of the timestampToken (i.e. when it was timestamped) $json->DtOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.genTime",0,$unauthAttrTimestampTokenTstInfoGenTime); # The following code gets details about the validity of the timestampToken's signature... $j = 0; $count_j = $json->SizeOfArray("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.digestAlgorithms"); while ($j < $count_j) { $json->put_J($j); $strVal = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.digestAlgorithms[j]"); $j = $j + 1; } $j = 0; $count_j = $json->SizeOfArray("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo"); while ($j < $count_j) { $json->put_J($j); $certSerialNumber = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.serialNumber"); $certIssuerCN = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.issuerCN"); $certIssuerDN = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.issuerDN"); $certDigestAlgOid = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.digestAlgOid"); $certDigestAlgName = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.digestAlgName"); $contentType = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].contentType"); $messageDigest = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].messageDigest"); $signingAlgOid = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].signingAlgOid"); $signingAlgName = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].signingAlgName"); $authAttrContentTypeName = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.3\".name"); $authAttrContentTypeOid = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.3\".oid"); $authAttrMessageDigestName = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.4\".name"); $authAttrMessageDigestDigest = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.4\".digest"); $authAttrSigningCertificateV2Name = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.16.2.47\".name"); $authAttrSigningCertificateV2Der = $json->stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.16.2.47\".der"); $j = $j + 1; } } $i = $i + 1; } if ($success != 1) { print $crypt->lastErrorText() . "\r\n"; print "CAdES-T verification failed." . "\r\n"; } else { print "CAdES-T signature is valid." . "\r\n"; } |
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