(Ruby) Apple Keychain - Get Certificate by Common Name

See more Apple Keychain Examples

Retrieves the certificate from the Apple Keychain that matches the specified common name (CN).

Note: This example requires Chilkat v10.0.0 or greater.

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

require 'chilkat'

# On MacOS or iOS, this searches both the Default keychains and System keychains for the certificate
# having the specified CN.
cert = Chilkat::CkCert.new()
success = cert.LoadByCommonName("Certum CA")
if (success == false)
    print cert.lastErrorText() + "\n";
    exit
end

print cert.subjectDN() + "\n";

# Note: In the Apple Keychain, a certificate with its private key represents an identity because it combines the certificate and its private key.
# When Chilkat loads a certificate from the Apple Keychain, it also gets the associated private key.
# You can simply use the cert in other places in Chilkat where a cert w/ private key is required.
cert2 = Chilkat::CkCert.new()
success = cert2.LoadByCommonName("Chilkat Software, Inc.")
if (success == false)
    print cert2.lastErrorText() + "\n";
    exit
end

print cert2.subjectDN() + "\n";
hasPrivKey = cert2.HasPrivateKey()
print "Has private key: " + hasPrivKey.to_s() + "\n";

print "Success." + "\n";