Encryption Test

require 'openssl'
require 'Base64'

def encryption(data)

    cipher = OpenSSL::Cipher::AES.new(128, :CBC)

    cipher.encrypt
    key = cipher.random_key
    iv = cipher.random_iv
    encrypted = cipher.update(data) + cipher.final
  #  encoded =Base64.encode64(encrypted).encode('utf-8')
  #  p encoded
    p encrypted

   # decoded=Base64.decode64(encrypted).encode('ascii-8bit')
    decipher = OpenSSL::Cipher::AES.new(128, :CBC)
    decipher.decrypt
   # decipher.padding = 0
    decipher.key = key
    decipher.iv = iv
    plain = decipher.update(encrypted) + decipher.final
  #  p decoded
    p plain
end

if __FILE__ == $0

p encryption("This is crazy!")

end

Wall B

put "/message/:id/encrypt" do
  @message = Message.get(params[:id])
  wall_id = @message['wall_id']
  description = @message['description']
  # key = 'abcdefghabcdefghabcdefgh'
  # iv = '1234567812345678'
  cipher = OpenSSL::Cipher::AES.new(128, :CBC)
  decipher = OpenSSL::Cipher::AES.new(128, :CBC)
    key = cipher.random_key
    iv = cipher.random_iv
  if params[:secret] == SECRET_PASSWORD
    cipher.encrypt
    encrypted = cipher.update(description) + cipher.final
    # encoded =Base64.encode64(encrypted).encode('utf-8')
    @message.update(:description => encrypted)
    show_params
    p @message
    p encrypted
    redirect "/"
  elsif params[:secret] == SECRET_PASSWORD_2
    encrypted = @message['description']
   # decoded=Base64.decode64(encrypted).encode('ascii-8bit')

    decipher.decrypt
    decipher.padding = 0
    decipher.key = key
    decipher.iv = iv
    plain = decipher.update(encrypted) + decipher.final
    @message.update(:description => plain)
    show_params
    p plain
    redirect "/"
  else
    "you did not provide the right password"
  end
end

Wall Description

<p>
<h3><label>Title: <%= @wall.title %></h3>

   </label>

<h3><label>Description:  <%= @wall.description %></h3>

  </label>

<h3><label>Author:  <%= @wall.created_by %></h3>
  </label>

<button><a href="/walls/<%= @wall.id %>/new_message">Write a Message on This Wall</a></button>



<% @messages.each do |message| %>

     <p> Message id: <%= message.id %> </p>
       <form method="POST" action="/message/<%= message.id %>/encrypt">
          <input type="hidden" name="_method" value="PUT">
            <p>Message: <%= message.description %></p><button>Encrypt or decrypt this message</button><input type="string" name="secret" placeholder="password">
        </form>
        <br />

     <%= message.likes.to_s %> likes
        <form method="POST" action="/walls/messages/<%= message.id %>/likes">
           <p><button>Like!</button></p>
        </form>

    <% end %>

    </ul>