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(Tcl) Create .p7s Compliant with ICP-Brazil Digital Signature Standard

Demonstrates how to create a .p7s signature that contains a data file, which in this case is a PDF. The .p7s will be compliant with the ICP-Brazil Digital Signature Standard.

Important: This example requires Chilkat v9.5.0.92 or later.

Chilkat Tcl Extension Downloads

Chilkat Tcl Extension Downloads

load ./chilkat.dll

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

set crypt [new_CkCrypt2]

# Any type of file can be signed.  It doesn't have to be a PDF.
set inFile "qa_data/pdf/helloWorld.pdf"

set bd [new_CkBinData]

set success [CkBinData_LoadFile $bd $inFile]
if {$success == 0} then {
    puts "Failed to load $inFile"
    delete_CkCrypt2 $crypt
    delete_CkBinData $bd
    exit
}

# Get the certificate we'll be using to sign.
set cert [new_CkCert]

set success [CkCert_LoadPfxFile $cert "qa_data/pfx/cert_test123.pfx" "test123"]
if {$success == 0} then {
    puts [CkCert_lastErrorText $cert]
    delete_CkCrypt2 $crypt
    delete_CkBinData $bd
    delete_CkCert $cert
    exit
}

set success [CkCrypt2_SetSigningCert $crypt $cert]
if {$success == 0} then {
    puts [CkCrypt2_lastErrorText $crypt]
    delete_CkCrypt2 $crypt
    delete_CkBinData $bd
    delete_CkCert $cert
    exit
}

# Set properties for signing...
CkCrypt2_put_HashAlgorithm $crypt "sha256"

set jsonSigningAttrs [new_CkJsonObject]

CkJsonObject_UpdateInt $jsonSigningAttrs "contentType" 1
CkJsonObject_UpdateInt $jsonSigningAttrs "signingTime" 1
CkJsonObject_UpdateInt $jsonSigningAttrs "messageDigest" 1
CkJsonObject_UpdateInt $jsonSigningAttrs "signingCertificateV2" 1

# Listed here are the currently existing profiles. (Chilkat will add additional ICP Brasil policy profiles in future versions as new ones are created.)
# See https://www.gov.br/iti/pt-br/assuntos/repositorio/artefatos-de-assinatura-digital for more information.
# 
# PA_AD_RA --> 2.16.76.1.7.1.5.1
# PA_AD_RA_v1_1 --> 2.16.76.1.7.1.5.1.1
# PA_AD_RA_v1_2 --> 2.16.76.1.7.1.5.1.2
# PA_AD_RA_v2_0 --> 2.16.76.1.7.1.5.2
# PA_AD_RA_v2_1 --> 2.16.76.1.7.1.5.2.1
# PA_AD_RA_v2_2 --> 2.16.76.1.7.1.5.2.2
# PA_AD_RA_v2_3 --> 2.16.76.1.7.1.5.2.3
# PA_AD_RA_v2_4 --> 2.16.76.1.7.1.5.2.4
# PA_AD_RB --> 2.16.76.1.7.1.1.1
# PA_AD_RB_v1_1 --> 2.16.76.1.7.1.1.1.1
# PA_AD_RB_v2_0 --> 2.16.76.1.7.1.1.2
# PA_AD_RB_v2_1 --> 2.16.76.1.7.1.1.2.1
# PA_AD_RB_v2_2 --> 2.16.76.1.7.1.1.2.2
# PA_AD_RB_v2_3 --> 2.16.76.1.7.1.1.2.3
# PA_AD_RC --> 2.16.76.1.7.1.4.1
# PA_AD_RC_v1_1 --> 2.16.76.1.7.1.4.1.1
# PA_AD_RC_v2_0 --> 2.16.76.1.7.1.4.2
# PA_AD_RC_v2_1 --> 2.16.76.1.7.1.4.2.1
# PA_AD_RC_v2_2 --> 2.16.76.1.7.1.4.2.2
# PA_AD_RC_v2_3 --> 2.16.76.1.7.1.4.2.3
# PA_AD_RT --> 2.16.76.1.7.1.2.1
# PA_AD_RT_v1_1 --> 2.16.76.1.7.1.2.1.1
# PA_AD_RT_v2_0 --> 2.16.76.1.7.1.2.2
# PA_AD_RT_v2_1 --> 2.16.76.1.7.1.2.2.1
# PA_AD_RT_v2_2 --> 2.16.76.1.7.1.2.2.2
# PA_AD_RT_v2_3 --> 2.16.76.1.7.1.2.2.3
# PA_AD_RV --> 2.16.76.1.7.1.3.1
# PA_AD_RV_v1_1 --> 2.16.76.1.7.1.3.1.1
# PA_AD_RV_v2_0 --> 2.16.76.1.7.1.3.2
# PA_AD_RV_v2_1 --> 2.16.76.1.7.1.3.2.1
# PA_AD_RV_v2_2 --> 2.16.76.1.7.1.3.2.2
# PA_AD_RV_v2_3 --> 2.16.76.1.7.1.3.2.3

# Set the policy OID and the profile name
CkJsonObject_UpdateString $jsonSigningAttrs "policyId.id" "2.16.76.1.7.1.1.2.3"
CkJsonObject_UpdateString $jsonSigningAttrs "policyId.profile" "PA_AD_RB_v2_3"

CkCrypt2_put_SigningAttributes $crypt [CkJsonObject_emit $jsonSigningAttrs]

# Sign. 
set success [CkCrypt2_OpaqueSignBd $crypt $bd]
if {$success == 0} then {
    puts [CkCrypt2_lastErrorText $crypt]
    delete_CkCrypt2 $crypt
    delete_CkBinData $bd
    delete_CkCert $cert
    delete_CkJsonObject $jsonSigningAttrs
    exit
}

# Save to a .p7s
set success [CkBinData_WriteFile $bd "qa_output/helloWorld.pdf.p7s"]

puts "Success"

delete_CkCrypt2 $crypt
delete_CkBinData $bd
delete_CkCert $cert
delete_CkJsonObject $jsonSigningAttrs

 

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