Security Enhancement of AES Based Encryption Using Dynamic Salt Algorithm

Data are the main demand of today's modern era. However, the cryptanalysis attack can compromise the security of any data. Consequently, unauthorized peoples can take the data. The reason is Cryptography is currently only based on the results of the same encryption. In reducing cryptanalysis attacks, this paper discusses data security using dynamic encryption. Cryptosystem in this paper uses a modified of AES 256-bit. Procedure to generate dynamic encryption by giving a character (salt) to plain text. Salt formed from the result of a Linear Congruential Generator (LCG) algorithm. Then a combination of salt and plain text will merge with the algorithm of One Time Pad (OTP). The advantage of this method is, can be used on two different systems, in addition to dynamic encryption results. The tests conducted in this paper shows that the percentage of NIST Tool Suite Test, the successful result is 72.5% from eight parameters that tested.