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- #!/usr/bin/ruby
- # XOR can be insecure!
- var key1 = "a"*64 # Alice key
- var key2 = "z"*64 # Bob key
- var msg = "Hello world! How are you doing?"
- var c1 = (msg ^ key1) # Alice encrypts the message with her private key and sends it to Bob
- var c2 = ( c1 ^ key2) # Bob encrypts the encrypted message with his private key and sends the message back to Alice
- var c3 = ( c2 ^ key1) # Alice removes her encryption layer and sends the message back to Bob
- say (c3 ^ key2) # Bob can now remove his layer of encryption and read the message
- # However, this is insecure!
- # Someone that intercepts the encrypted messages, can decrypt them!
- say (c2 ^ c3) # Alice's private key
- say (c1 ^ c2) # Bob's private key
- say (c1 ^ c2 ^ c3) # The original message decrypted from the encrypted messages
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