Ruby

Generate a CSR with SAN (Subject Alternative Name) Extension

See more CSR Examples

Demonstrates how to generate a private key and a Certificate Signing Request (CSR) that includes the SAN extension. Ruby

require 'chilkat'

success = false

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

# First generate an RSA private key.
# (It is also possible to create CSRs based on ECDSA private keys..)
rsa = Chilkat::CkRsa.new()

# Generate a random 2048-bit RSA key.
privKey = Chilkat::CkPrivateKey.new()
success = rsa.GenKey(2048,privKey)
if (success == false)
    print rsa.lastErrorText() + "\n";
    exit
end

# Create the CSR object and set properties.
csr = Chilkat::CkCsr.new()

# Specify the Common Name. 
csr.put_CommonName("mysubdomain.mydomain.com")

# Country Name (2 letter code)
csr.put_Country("GB")

# State or Province Name (full name)
csr.put_State("Yorks")

# Locality Name (eg, city)
csr.put_Locality("York")

# Organization Name (eg, company)
csr.put_Company("Internet Widgits Pty Ltd")

# Organizational Unit Name (eg, secion/division)
csr.put_CompanyDivision("IT")

# Email address
csr.put_EmailAddress("support@mydomain.com")

# Add Subject Alternative Names
# (The AddSan method is added in Chilkat v9.5.0.84)
# Call AddSan for each alternative name.
success = csr.AddSan("dnsName","mydomain.com")
success = csr.AddSan("dnsName","mysubdomain.mydomain.com")
success = csr.AddSan("ipAddress","192.168.0.123")

# Create the CSR using the private key.
pemStr = csr.genCsrPem(privKey)
if (csr.get_LastMethodSuccess() != true)
    print csr.lastErrorText() + "\n";
    exit
end

# Save the private key and CSR to a files.
privKey.SavePkcs8EncryptedPemFile("password","qa_output/privKey1.pem")

fac = Chilkat::CkFileAccess.new()
fac.WriteEntireTextFile("qa_output/csr1.pem",pemStr,"utf-8",false)

# Show the CSR.
print pemStr + "\n";

# Sample output:

# 	-----BEGIN CERTIFICATE REQUEST-----
# 	MIIC6jCCAdICAQAwgaQxITAfBgNVBAMMGG15c3ViZG9tYWluLm15ZG9tYWluLmNv
# 	bTELMAkGA1UEBhMCR0IxDjAMBgNVBAgMBVlvcmtzMQ0wCwYDVQQHDARZb3JrMSEw
# 	HwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxCzAJBgNVBAsMAklUMSMw
# 	IQYJKoZIhvcNAQkBFhRzdXBwb3J0QG15ZG9tYWluLmNvbTCCASIwDQYJKoZIhvcN
# 	AQEBBQADggEPADCCAQoCggEBALnQ0un/wF8whk+gPuiAlf3qvx14jgAOV6Erm6EB
# 	H7WACPCpnKcm/8KP+7uoPiwRQaENhMeCgf45vcivl2p6aAn/spLXyEkXyw2d8wFb
# 	YYAGRkiz4Xf7ASJiKuwcOtORz+sSDzgtdfokHfXU1cYeFE2yQhSdLUY5fMn425+g
# 	KoEEsRSjSDe6AKru4+4iGNrLKd8pB9IA5/jOE139IkWlB9r5fEPD5bUTsgqXk9eb
# 	68O0gc712V2eZK07N24lDmFC4bIMTD4csDWocR5hFHXj7NX7c8sOBDcpEb9mPIk4
# 	elxubnhkfnjhOi4J3lDHcT/0ALnbLhf9LnaiKqs+5VcVZvECAwEAAaAAMA0GCSqG
# 	SIb3DQEBBQUAA4IBAQC0AETLIcP3foh5nbu2hVFS8uCUNZ5hEIR1eXmYZmZoBQq2
# 	26ZAoT4CZwixlggC+n7WvAXJ5Pzxpl4wLV4loTiQzaKPX1w0ERo5ZRwLy0n56oG2
# 	6QG+WTViT1C8rlgtVwkCFNOXr0kSSRs8FdaPllqKxK1hxYSL7zwNpumsk39F2cDt
# 	vhcekvH0V3BuGrQFm3dKN/0azW6GOod9+Vq4VzSyOe3kp15oxLBsZOFOu/REujcw
# 	Tzu2jt1asQKUm60CZ9wNHpYepR0Ww40uP1slbehEaFDa6V8b60/tlHHmBbJ4/fy5
# 	hJnYCvjzFz4O9VtT+JtP9ldRHWV3KpZ8ne3AjD+F
# 	-----END CERTIFICATE REQUEST-----