Tcl Requires Chilkat v11.0.0+
Tcl
Generate a CSR containing an Extension Request
See more CSR Examples
Demonstrates how to generate a CSR containing a 1.2.840.113549.1.9.14 extensionRequest.Chilkat Tcl Downloads
load ./chilkat.dll
set success 0
# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
# This example will generate a secp256r1 ECDSA key for the CSR.
set ecc [new_CkEcc]
set prng [new_CkPrng]
set privKey [new_CkPrivateKey]
set success [CkEcc_GenKey $ecc "secp256r1" $prng $privKey]
if {$success == 0} then {
puts "Failed to generate a new ECDSA private key."
delete_CkEcc $ecc
delete_CkPrng $prng
delete_CkPrivateKey $privKey
exit
}
set csr [new_CkCsr]
# Add common CSR fields:
CkCsr_put_CommonName $csr "mysubdomain.mydomain.com"
CkCsr_put_Country $csr "GB"
CkCsr_put_State $csr "Yorks"
CkCsr_put_Locality $csr "York"
CkCsr_put_Company $csr "Internet Widgits Pty Ltd"
CkCsr_put_EmailAddress $csr "support@mydomain.com"
# Add the following 1.2.840.113549.1.9.14 extensionRequest
# Note: The easiest way to know the content and format of the XML to be added is to examine
# a pre-existing CSR with the same desired extensionRequest. You can use Chilkat to
# get the extensionRequest from an existing CSR.
# Here is a sample extension request:
# <?xml version="1.0" encoding="utf-8"?>
# <set>
# <sequence>
# <sequence>
# <oid>1.3.6.1.4.1.311.20.2</oid>
# <asnOctets>
# <printable>ZATCA-Code-Signing</printable>
# </asnOctets>
# </sequence>
# <sequence>
# <oid>2.5.29.17</oid>
# <asnOctets>
# <sequence>
# <contextSpecific tag="4" constructed="1">
# <sequence>
# <set>
# <sequence>
# <oid>2.5.4.4</oid>
# <utf8>334623324234325</utf8>
# </sequence>
# </set>
# <set>
# <sequence>
# <oid>0.9.2342.19200300.100.1.1</oid>
# <utf8>310122393500003</utf8>
# </sequence>
# </set>
# <set>
# <sequence>
# <oid>2.5.4.12</oid>
# <utf8>0000</utf8>
# </sequence>
# </set>
# <set>
# <sequence>
# <oid>2.5.4.26</oid>
# <utf8>Sample E</utf8>
# </sequence>
# </set>
# <set>
# <sequence>
# <oid>2.5.4.15</oid>
# <utf8>Sample Business</utf8>
# </sequence>
# </set>
# </sequence>
# </contextSpecific>
# </sequence>
# </asnOctets>
# </sequence>
# </sequence>
# </set>
# Use this online tool to generate code from sample XML:
# Generate Code to Create XML
# Here's the code to generate the above extension request.
set xml [new_CkXml]
CkXml_put_Tag $xml "set"
CkXml_UpdateChildContent $xml "sequence|sequence|oid" "1.3.6.1.4.1.311.20.2"
CkXml_UpdateChildContent $xml "sequence|sequence|asnOctets|printable" "ZATCA-Code-Signing"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|oid" "2.5.29.17"
CkXml_UpdateAttrAt $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific" 1 "tag" "4"
CkXml_UpdateAttrAt $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific" 1 "constructed" "1"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|oid" "2.5.4.4"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|utf8" "334623324234325"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|oid" "0.9.2342.19200300.100.1.1"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|utf8" "310122393500003"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|oid" "2.5.4.12"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|utf8" "0000"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|oid" "2.5.4.26"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|utf8" "Sample E"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|oid" "2.5.4.15"
CkXml_UpdateChildContent $xml "sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|utf8" "Sample Business"
# Add the extension request to the CSR
CkCsr_SetExtensionRequest $csr $xml
# Generate the CSR with the extension request
set csrPem [CkCsr_genCsrPem $csr $privKey]
if {[CkCsr_get_LastMethodSuccess $csr] == 0} then {
puts [CkCsr_lastErrorText $csr]
delete_CkEcc $ecc
delete_CkPrng $prng
delete_CkPrivateKey $privKey
delete_CkCsr $csr
delete_CkXml $xml
exit
}
puts "$csrPem"
# Sample PEM output:
# -----BEGIN CERTIFICATE REQUEST-----
# MIICEjCCAbkCAQAwgZcxITAfBgNVBAMMGG15c3ViZG9tYWluLm15ZG9tYWluLmNv
# bTELMAkGA1UEBhMCR0IxDjAMBgNVBAgMBVlvcmtzMQ0wCwYDVQQHDARZb3JrMSEw
# HwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxIzAhBgkqhkiG9w0BCQEW
# FHN1cHBvcnRAbXlkb21haW4uY29tMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE
# g8EVNSV0ttlM9kG2E+J3ZB9WEDYVf2QA/8idrPRUafia1CHjd1kslwZA8eP2bAcf
# 2O493QAENqtW6DTHJbRz8KCBvjCBuwYJKoZIhvcNAQkOMYGtMIGqMCEGCSsGAQQB
# gjcUAgQUExJaQVRDQS1Db2RlLVNpZ25pbmcwgYQGA1UdEQR9MHukeTB3MRgwFgYD
# VQQEDA8zMzQ2MjMzMjQyMzQzMjUxHzAdBgoJkiaJk/IsZAEBDA8zMTAxMjIzOTM1
# MDAwMDMxDTALBgNVBAwMBDAwMDAxETAPBgNVBBoMCFNhbXBsZSBFMRgwFgYDVQQP
# DA9TYW1wbGUgQnVzaW5lc3MwCgYIKoZIzj0EAwIDRwAwRAIgF7D30eSBklfo+oel
# 1B0z64eJDB9MB3rCoiFZlj+mz0YCIHYI87eyqdtw2LOcAoBRhyxlBT6i28+Z/8t9
# bYsMIYvp
# -----END CERTIFICATE REQUEST-----
delete_CkEcc $ecc
delete_CkPrng $prng
delete_CkPrivateKey $privKey
delete_CkCsr $csr
delete_CkXml $xml