#cipher text

Advanced Encryption Standard (AES) algorithm is one of the most common and widely used symmetric block cipher algorithm. This algorithm has its own particular structure to encrypt and decrypt sensitive data and is applied in hardware and software, all over the world. It is extremely difficult for hackers to get the real data when encrypting by AES algorithm. In AES algorithm, encryption and decryption involves a number of rounds that depends on the length of the key and the number of block columns. So, to improve the strength of the AES the number of rounds is increased. Till date there is not any evidence to crack this algorithm. AES has the ability to deal with three different key sizes such as AES 128, 192 and 256 bit and each of this ciphers has 128 bit block size. This paper will provide an overview of AES algorithm and explain several crucial features of this algorithm in detail. 

Steganography is the skill and learning of script unseen messages in such a mode that apart from the transmitter and envisioned receiver even recognizes there is a unseen message. Steganography works by exchanging bits of unusable or idle data in systematic Audio file with bits of dissimilar, imperceptible information. This unknown material can be plain text or cipher text. In a computer-based audio Steganography structure, underground messages are surrounded in numeral sound. The furtive memo is surrounded by marginally moving the twofold order of a sound file. Implanting surreptitious messages in numeral sound is usually a more hard process than inserting messages in other media, such as numeral images. These procedures sort from quite modest algorithms that pullout gen in the form of gesture noise to more dominant methods that feat erudite signal processing techniques to pelt material. Thus the main persistence of this project is to enlighten using Audio Steganography we can direct texts or even transcript files secretly