(Ruby) Generate an RSA Key and Save to Encrypted PEM

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

require 'chilkat'

rsa = Chilkat::CkRsa.new()

# Generate a 2048-bit key.
success = rsa.GenerateKey(2048)
if (success == false)
    print rsa.lastErrorText() + "\n";
    exit
end

# privKey is a CkPrivateKey
privKey = rsa.ExportPrivateKeyObj()
password = "secret"
# Saving to a relative path (from the current working directory of the process).
path = "rsaKeys/myTestRsaPrivate.pem"
# Encrypt the PEM using 256-bit AES encryption.
privKey.put_Pkcs8EncryptAlg("aes256")
success = privKey.SavePkcs8EncryptedPemFile(password,path)
if (success == false)
    print privKey.lastErrorText() + "\n";
    exit
end

# 

# We can also save the public key.
# There is no need to encrypt public keys.
# pubKey is a CkPublicKey
pubKey = rsa.ExportPublicKeyObj()
path = "rsaKeys/myTestRsaPublic.pem"
# Choose PKCS1 or PKCS8
# We'll choose PKCS8.
preferPkcs1 = false
success = pubKey.SavePemFile(preferPkcs1,path)
if (success == false)
    print pubKey.lastErrorText() + "\n";
    exit
end

# 

print "Success." + "\n";