IMPLEMENTASI ALGORITMA KRIPTOGRAFI BLOWFISH DAN METODE STEGANOGRAFI END OF FILE (EOF) UNTUK KEAMANAN DATA

YULIANA, CUCU TRI EKA (2014) IMPLEMENTASI ALGORITMA KRIPTOGRAFI BLOWFISH DAN METODE STEGANOGRAFI END OF FILE (EOF) UNTUK KEAMANAN DATA. Skripsi, Fakultas Ilmu Komputer.

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Abstract

Cryptography is the science of encryption technique where the data is scrambled using an encryption key to be something that is not easily read by someone who does not have the decryption key. But now, cryptanalyst (science and art to solve without knowing the cryptographic keys used) has grown, so many algorithms that can be solved, so the security level of cryptography is reduced. So that one of them needed steganographic techniques to enhance security by hiding the message that has been encrypted. Steganography is the process of hiding a message in an image. Steganography can be said to be more secure because it does not randomize, so the inserted file is not suspicious, although each method has its advantages and disadvantages. In this study, an encryption implementation using Blowfish cryptography algorithm is created and then it is hidden in an image by using End of File (EOF) method. It is aimed to increase the message security because the encryption message will be hidden in an image which the difference is invisible. The implementation of this study is applied by using a source in Visual Basic 6.0 programming language. The result is a picture which does not show the secret message in it.

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