RSA OAEP Padding

Demonstrates how to use OAEP padding with the RSA encryption algorithm. More information about OAEP Padding.

Download Chilkat Ruby Library

require 'chilkat'

rsa = Chilkat::CkRsa.new()

success = rsa.UnlockComponent("Anything for 30-day trial")
if (success != true)
    print "RSA component unlock failed" + "\n"
    exit
end

#  RSA public key in XML format:
publicKey = "<RSAKeyValue><Modulus>of3im3mRgd2NLXIGoK6uYLg6jj0Ug2b42rnqa5Tbwz2ieFqMJqt+++x2oqLYGurlz49nt+7/785g3XYWqoka4u9c9zul6YubIjnBM72dQy7rEkEfbUxgjcxqXyjZFx+FpaxFUecLu688XEu+9UA42VKiCgcl+E7TrqnfeeYpNXc=</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>"

rsa.ImportPublicKey(publicKey)

#  To use Optimal Asymmetric Encryption Padding (OAEP) padding,
#  simply set the OaepPadding property:
rsa.put_OaepPadding(true)

#  Encrypt a string and return the encrypted data base64-encoded:
rsa.put_EncodingMode("base64")

plainText = "RSA Encryption should be easy."

usePrivateKey = false
encryptedStr = rsa.encryptStringENC(plainText,usePrivateKey)
print encryptedStr + "\n";