(Ruby) Binary Certificate Extension Data

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Demonstrates how to binary certificate extension data by OID.

The GetExtensionBd method is added in Chilkat v9.5.0.96.

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

require 'chilkat'

cert = Chilkat::CkCert.new()

success = cert.LoadFromFile("qa_data/certs/testCert.cer")
if (success == false)
    print cert.lastErrorText() + "\n";
    exit
end

bd = Chilkat::CkBinData.new()

# The particular certificate in this test contains the following extensions

oid = "1.2.250.1.71.1.2.5"
success = cert.GetExtensionBd(oid,bd)
if (success == true)
    print oid + ": " + bd.getEncoded("hex_lower") + "\n";
end

oid = "1.2.250.1.71.1.2.2"
success = cert.GetExtensionBd(oid,bd)
if (success == true)
    print oid + ": " + bd.getEncoded("hex_lower") + "\n";
end

oid = "1.2.250.1.71.1.2.3"
success = cert.GetExtensionBd(oid,bd)
if (success == true)
    print oid + ": " + bd.getEncoded("hex_lower") + "\n";
end

oid = "1.2.250.1.71.1.2.7"
success = cert.GetExtensionBd(oid,bd)
if (success == true)
    print oid + ": " + bd.getEncoded("hex_lower") + "\n";
end

oid = "1.2.250.1.71.4.2.5"
success = cert.GetExtensionBd(oid,bd)
if (success == true)
    print oid + ": " + bd.getEncoded("hex_lower") + "\n";
end

# Sample output:
# 1.2.250.1.71.1.2.5: 040180
# 1.2.250.1.71.1.2.2: 020100
# 1.2.250.1.71.1.2.3: 1315383032353030303030312f32393030303539313432
# 1.2.250.1.71.1.2.7: 02010a
# 1.2.250.1.71.4.2.5: 30060c04534d3236

# The above binary values are actually ASN.1
# You can get the ASN.1 decoed by calling GetExtensionAsXml to get it in XML format,
# and then you extract the values from the XML.

oid = "1.2.250.1.71.1.2.5"
strXml = cert.getExtensionAsXml(oid)
if (cert.get_LastMethodSuccess() == true)
    print oid + ": " + strXml + "\n";
end

oid = "1.2.250.1.71.1.2.2"
strXml = cert.getExtensionAsXml(oid)
if (cert.get_LastMethodSuccess() == true)
    print oid + ": " + strXml + "\n";
end

oid = "1.2.250.1.71.1.2.3"
strXml = cert.getExtensionAsXml(oid)
if (cert.get_LastMethodSuccess() == true)
    print oid + ": " + strXml + "\n";
end

oid = "1.2.250.1.71.1.2.7"
strXml = cert.getExtensionAsXml(oid)
if (cert.get_LastMethodSuccess() == true)
    print oid + ": " + strXml + "\n";
end

oid = "1.2.250.1.71.4.2.5"
strXml = cert.getExtensionAsXml(oid)
if (cert.get_LastMethodSuccess() == true)
    print oid + ": " + strXml + "\n";
end

# Sample output:
# 1.2.250.1.71.1.2.5: <octets>gA==</octets>
# 1.2.250.1.71.1.2.2: <int>00</int>
# 1.2.250.1.71.1.2.3: <printable>8025000001/2900059142</printable>
# 1.2.250.1.71.1.2.7: <int>0A</int>
# 1.2.250.1.71.4.2.5: <sequence><utf8>SM26</utf8></sequence>

# "gA==" is the base64 encoded byte values
# "0A" is hex for decimal 1