(Ruby) Create Egypt ITIDA CAdES-BES .p7s Signature (with strings in-memory)

See more Egypt ITIDA Examples

Demonstrates how to create a .p7s signature that fits Egypt's ITIDA requirements.

Note: This example requires Chilkat v9.5.0.75 or greater.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

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()

# There are many ways to load the certificate.  
# This example was created for a customer using an ePass2003 USB token.
# Assuming the USB token is the only source of a hardware-based private key..
success = cert.LoadFromSmartcard("")
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

cmsOptions = Chilkat::CkJsonObject.new()
# Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used.
cmsOptions.UpdateBool("DigestData",true)
cmsOptions.UpdateBool("OmitAlgorithmIdNull",true)
crypt.put_CmsOptions(cmsOptions.emit())

# The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures. 
# To create a CAdES-BES signature, set this property equal to true. 
crypt.put_CadesEnabled(true)

crypt.put_HashAlgorithm("sha256")

jsonSigningAttrs = Chilkat::CkJsonObject.new()
jsonSigningAttrs.UpdateInt("contentType",1)
jsonSigningAttrs.UpdateInt("signingTime",1)
jsonSigningAttrs.UpdateInt("messageDigest",1)
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)

# Make sure we sign the utf-8 byte representation of the JSON string
crypt.put_Charset("utf-8")

# Create the CAdES-BES signature.
textToSign = "\"issuer\"\"address\"\"branchID\"\"0\"\"country\"\"EG\"\"regionCity..."

crypt.put_EncodingMode("base64")
sigBase64 = crypt.signStringENC(textToSign)
if (crypt.get_LastMethodSuccess() == false)
    print crypt.lastErrorText() + "\n";
    exit
end

print "Base64 signature:" + "\n";
print sigBase64 + "\n";