From: Eric Hodel <drbrain@...7.net>
Date: 2011-11-09T05:47:04+09:00
Subject: Re: ruby encryption & decryption using rsa

On Nov 7, 2011, at 11:14 PM, varma potthuri wrote:
> require 'openssl'
> include OpenSSL
> require 'base64'
> 
> class Generatekey
>   def keygeneration_and_encryption_decryption(txt)
>   rsa = PKey::RSA.generate(512)
> 
>  cipher_text_with_priv = rsa.private_encrypt(txt)
>  string=Base64.encode64(cipher_text_with_priv);
>  puts "encrypted string with the private key"
>  puts "#{string}"
> 
>  cipher_text_with_pub = rsa.public_encrypt(txt)
>  string1=Base64.encode64(cipher_text_with_pub);
>  puts "encrypted string with the public key "
>  puts "#{string1}"
> 
>  pt_with_pub = rsa.public_decrypt(cipher_text_with_priv)
>  puts "decrypted string with the public key"
>  puts "#{pt_with_pub}"
> 
>  pt_with_priv = rsa.private_decrypt(cipher_text_with_pub)
>  puts "decrypted string with the private key"
>  puts "#{pt_with_priv}"
>  end
> end
>  generatekey=Generatekey.new
>  generatekey.keygeneration_and_encryption_decryption('hello')

When I run this code I see:

$ pbpaste | ruby
encrypted string with the private key
AAH/////////////////////////////////////////////////////////
/////////////////wBoZWxsbw==
encrypted string with the public key 
AAKcp3TykBaaO4/PQ2A6x4k44ve6xkxjtA6ufszclAPW7NwshQOXqqSaLaMc
zPOtln6Kx/uMzi4cngBoZWxsbw==
decrypted string with the public key
hello
decrypted string with the private key
hello

What are you seeing?