(Ruby) Examine SSL/TLS Server Certificate

See more Socket/SSL/TLS Examples

Demonstrates how an application can examine and check a server's SSL/TLS certificate.

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.

socket = Chilkat::CkSocket.new()

# Connect to a server.
useTls = true
maxWaitMs = 2000
success = socket.Connect("www.intel.com",443,useTls,maxWaitMs)
if (success == false)
    print socket.lastErrorText() + "\n";
    exit
end

# If we get here, the TLS connection ws made..
# In any SSL/TLS handshake, the server sends its certificate in a TLS handshake message.
# Chilkat will keep it cached within the object that made the connection.
# Get the server's cert and examine a few things.
# cert is a CkCert
cert = socket.GetSslServerCert()
if (socket.get_LastMethodSuccess() == false)
    # This is unexpected..
    print socket.lastErrorText() + "\n";
    exit
end

print "Distinguished Name: " + cert.subjectDN() + "\n";
print "Common Name: " + cert.subjectCN() + "\n";
print "Issuer Distinguished Name: " + cert.issuerDN() + "\n";
print "Issuer Common Name: " + cert.issuerCN() + "\n";

print "Expired: " + cert.get_Expired().to_s() + "\n";
print "Revoked: " + cert.get_Revoked().to_s() + "\n";
print "Signature Verified: " + cert.get_SignatureVerified().to_s() + "\n";
print "Trusted Root: " + cert.get_TrustedRoot().to_s() + "\n";

# Sample output:

# Distinguished Name: C=US, ST=California, O=Intel Corporation, CN=*.intel.com
# Common Name: *.intel.com
# Issuer Distinguished Name: C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Organization Validation Secure Server CA
# Issuer Common Name: Sectigo RSA Organization Validation Secure Server CA
# Expired: False
# Revoked: False
# Signature Verified: True
# Trusted Root: True