A Scalable Block Cipher Design Using Filter Banks and Lifting over Finite Fields

A Secure Data Communication System Using Cryptogaphy And Steganography

“…The cryptographic algorithm used in this paper is filter bank cipher over Galois field (GF ( 2 8 )) [16]. In this cipher the encryption process consists from two layers.…”

“…Figure 3 shows one round filter bank cipher. In this stage, the message is encrypted using filter bank cipher, where its filters coefficients are generated from the key [16].…”

Image Encryption Scheme Based on Filter Bank and Lifting

“…A further classification of an encryption algorithm can be block cipher and stream cipher [6]. A block cipher is a symmetric key cipher which takes a block of plaintext as an input and the output is another ciphertext block of the same length.…”

“…Whereas, a stream cipher takes the data one bit or one byte at a time. Due to this, the stream cipher is much faster than the block cipher and with less hardware complexity [6]. While, block cipher is better than the stream ciphers in that the data block can be serially encrypted by decimating large blocks into several smaller blocks [6].…”

“…Due to this, the stream cipher is much faster than the block cipher and with less hardware complexity [6]. While, block cipher is better than the stream ciphers in that the data block can be serially encrypted by decimating large blocks into several smaller blocks [6]. In [6], filter bank systems were employed as a cryptosystem, where the analysis filter banks were used to make the encryption process, while the synthesis filter banks were used to make the decryption process.…”