RANCANG BANGUN SISTIM ENKRIPSI PENGIRIMAN INFORMASI MENGGUNAKAN ALGORITMA KRIPTOGRAFI KLASIK

M. Zen , Samsono Hadi and Ir. Nanang, Syahroni (2011) RANCANG BANGUN SISTIM ENKRIPSI PENGIRIMAN INFORMASI MENGGUNAKAN ALGORITMA KRIPTOGRAFI KLASIK. EEPI Final Project.

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Abstract

In today's competitive environment, enabling people to communicate and exchange information / data remotely. Between cities, countries and between continents is not an obstacle anymore in the communication and data exchange. Along with that the demand for securities (security) to the confidentiality of information exchanged on the rise. Therefore it is developing branch of science that studies on ways of data security or cryptography known. Just as a data security system created at the end of this project, the encryption process to be advocates in him. In the process of encryption there is a process by which data is encrypted in the form of random letters, and the process is called the plaintext-ciphertext. While on the side of the receiver will experience a process description, in which random data is converted to actual data or can be called with the ciphertext-plaintext. By using the method vigenere cipher, then the need for a key to obtain a ciphertext. Where the lock is determined by the length of the plaintext letters are entered. The result of this study issending data through the client to the server with encryption system so that the data to the server will be directly encoded. On the server, the encrypted data will be converted into the plaintext back through the process description Key : cryptography, algorithms, C programming, vigenere cipher, socket programming

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