(CkPython) Duplicate OpenSSL smime Command

Demonstrates how to duplicate an OpenSSL smime command to sign a text file using cert + key.

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux, Solaris

import sys
import chilkat

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

# This example duplicates the following OpenSSL command:
# 
# smime -sign -in helloWorld.txt -signer cert.pem -inkey my.key -passin pass:test1234 -outform PEM -out helloWorldSigned.pem

certPath = "qa_data/cert.pem"
privateKeyPath = "qa_data/my.key"
password = "test1234"
dataFile = "qa_data/helloWorld.txt"

cert = chilkat.CkCert()
success = cert.LoadFromFile(certPath)
if (success != True):
    print(cert.lastErrorText())
    sys.exit()

privKey = chilkat.CkPrivateKey()
success = privKey.LoadEncryptedPemFile(privateKeyPath,password)
if (success != True):
    print(privKey.lastErrorText())
    sys.exit()

bd = chilkat.CkBinData()
success = bd.LoadFile(dataFile)
if (success != True):
    print("Failed to load " + dataFile)
    sys.exit()

crypt = chilkat.CkCrypt2()
success = crypt.SetSigningCert2(cert,privKey)
if (success != True):
    print(crypt.lastErrorText())
    sys.exit()

success = crypt.OpaqueSignBd(bd)
if (success != True):
    print(crypt.lastErrorText())
    sys.exit()

sbPem = chilkat.CkStringBuilder()
sbPem.AppendLine("-----BEGIN PKCS7-----",True)
sbPem.Append(bd.getEncoded("base64_mime"))
sbPem.AppendLine("-----END PKCS7-----",True)
sbPem.WriteFile("helloWorldSigned.pem","utf-8",False)

print(sbPem.getAsString())

# Sample output:

# -----BEGIN PKCS7-----
# MIINxAYJKoZIhvcNAQcCoIINtTCCDbECAQExCzAJBgUrDgMCGgUAMBoGCSqGSIb3DQEHAaANBAtI
# ZWxsbyBXb3JsZKCCC0owggYQMIID+KADAgECAhBNlCwQ1DvglAnFgS06KwZPMA0GCSqGSIb3DQEB
# DAUAMIGIMQswCQYDVQQGEwJVUzETMBEGA1UECBMKTmV3IEplcnNleTEUMBIGA1UEBxMLSmVyc2V5
# IENpdHkxHjAcBgNVBAoTFVRoZSBVU0VSVFJVU1QgTmV0d29yazEuMCwGA1UEAxMlVVNFUlRydXN0
# IFJTQSBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTAeFw0xODExMDIwMDAwMDBaFw0zMDEyMzEyMzU5
# NTlaMIGWMQswCQYDVQQGEwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQH
# EwdTYWxmb3JkMRgwFgYDVQQKEw9TZWN0aWdvIExpbWl0ZWQxPjA8BgNVBAMTNVNlY3RpZ28gUlNB
# IENsaWVudCBBdXRoZW50aWNhdGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMIIBIjANBgkqhkiG9w0B
# AQEFAAOCAQ8AMIIBCgKCAQEAyjztlApB/975Rrno1jvm2pK/KxBOqhq8gr2+JhwpKirSzZxQgT9t
# lC7zl6hn1fXjSo5MqXUfItMltrMaXqcESJuK8dtK56NCSrq4iDKaKq9NxOXFmqXX2zN8HHGjQ2b2
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# 36iZQs/J4K0AMA4GA1UdDwEB/wQEAwIBhjASBgNVHRMBAf8ECDAGAQH/AgEAMB0GA1UdJQQWMBQG
# CCsGAQUFBwMCBggrBgEFBQcDBDARBgNVHSAECjAIMAYGBFUdIAAwUAYDVR0fBEkwRzBFoEOgQYY/
# aHR0cDovL2NybC51c2VydHJ1c3QuY29tL1VTRVJUcnVzdFJTQUNlcnRpZmljYXRpb25BdXRob3Jp
# dHkuY3JsMHYGCCsGAQUFBwEBBGowaDA/BggrBgEFBQcwAoYzaHR0cDovL2NydC51c2VydHJ1c3Qu
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# YHbfazG4pK2ukI7xKI1sjxs5237fmdYhqUkH0S+0I708zv10/jLN6Ev8r6Q0ItwRh4gt5dTC8qPK
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# SIb3DQEJBTEPFw0xOTA0MDIyMjM2MjRaMCMGCSqGSIb3DQEJBDEWBBQKTVWo13jlAi+rcBl3xdhA
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# -----END PKCS7-----
# 
#