The rapid development of global networks
and the tremendous possibilities offered by electronic
transactions in continuous communication today pose a
critical challenge to the protection of information
against transmission errors in a network. On the other
hand, this data must be unintelligible except to the
intended audience. In order to overcome these two
constraints, the coding of information is used to combat
transmission errors and data encryption is often used to
combat any spy system. In this paper, we try to
introduce a crypto public key system using error
correcting codes (it's a two-in-one system). The system
studied is the McEliece crypto system using the
Hamming cycle code correcting a simple error.
Keywords : Mceliece Crypto System, Hamming Code, Cryptography, Encryption, Public Key.