期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2019
卷号：97
期号：11
页码：3003-3013
出版社：Journal of Theoretical and Applied
摘要：The audio is digital media that is widely used in the message exchange as it is easy to use and can be accessed anywhere. The security aspect is very important if the audio to be delivered contain secret information. Using cryptography, message content can be hidden so that the delivery of a message to a recipient can be more secure. The security of RSA (Rivest Shamir Adleman) lies in the difficulty of resolving the private key. This is because looking for prime factors of large integers is not easy. With a longer bit key, it becomes more difficult to solve. In practice, these cryptographic algorithms have a weakness that easily raises suspicions because of the character of the message changed or scrambled into another form that is not meaningful. So that the confidentiality of the message needs to be made safer, concealment of messages to address the cryptographic algorithms that are used, the author combines the cryptographic method with a method of steganography. MLSB method (Modified Least Significant Bit) on the Red Channel is an improvement over the method of LSB, in which the only one selected color channel to store the information. The bit that is used is the last bit of the red channel value is binary. The results showed that the combination of the two algorithms is successfully done and the possibility of knowing the existence of an audio message in the picture is very small.
关键词：Rivest Shamir Adleman; Modified Least Significant Bit; Audio; Cryptography
