Following paper examines hardware implementation methods regarding Advanced Encryption Standard (AES). Compared to software implementation, migrating to hardware provides higher level of security and faster encryption speed. An overview of existing AES hardware implementation techniques are summarized. Then the direction of reconfigurable coprocessor as a cryptography hardware is proposed. Keyw...

This memo describes the use of the Advanced Encryption Standard (AES) with 192and 256-bit keys within the Secure RTP (SRTP) protocol. It details counter mode encryption for SRTP and Secure Realtime Transport Control Protocol (SRTCP) and a new SRTP Key Derivation Function (KDF) for AES-192 and AES-256.

Deniable encryption (Canetti et al. CRYPTO ’97) is an intriguing primitive that provides a security guarantee against not only eavesdropping attacks as required by semantic security, but also stronger coercion attacks performed after the fact. The concept of deniability has later demonstrated useful and powerful in many other contexts, such as leakage resilience, adaptive security of protocols,...

The Advanced Encryption System – AES is now used in almost all network-based applications to ensure security. In this paper, we propose a very efficient pipelined hardware implementation of AES128. The design is versatile as it allows both encryption and decryption. The core computation of AES, which is performed on data blocks of 128 bits, is iterated for several rounds, depending on the key s...

—Multimedia information availability has increased dramatically with the advent of mobile devices. But with this availability comes problems of maintaining the security of information that is displayed in public. Many approaches have been used or proposed for providing security for information dissemination over networks, protection system classified with more specific as encryption information...

The security of digital information in modern times is one of the most important factors to keep in mind. For this reason, in this paper, the author has proposed a new standard method of image encryption. The proposed method consists of 4 different stages: 1) First, a number is generated from the password and each pixel of the image is converted to its equivalent eight binary number, and in tha...

Spatiotemporal chaos of a two-dimensional one-way coupled map lattice is used for chaotic cryptography. The chaotic outputs of many space units are used for encryption simultaneously. This system shows satisfactory cryptographic properties of high security; fast encryption (decryption) speed; and robustness against noise disturbances in communication channel. The overall features of this spatio...

At present year, most of the hospitals and diagnostic centre have exchanging the biomedical information through wireless media. reliability of the information can be verified by adding ownership data as the watermarking and encryption in the original information. In our proposed work, a joint encryption/watermarking system for the purpose of protecting medical image. This system based on approa...

In January 1999, distributed.net collaborated with the Electronic Frontier Foundation to break a DES (i.e., Data Encryption Standard) key, spending 22 hours and 15 minutes, and implying that the DES is no longer a secure encryption method. In this paper, we propose a more secure one, called the True Random Number Encryption Method (TRNEM for short), which employs current time, true random numbe...

Cryptographic primitives are required to protect an IT (Information Technology) system. They are used to provide CIA (Confidentiality, Integrity, and Availability) and other security attributes to the system. So far, NIST (National Institute of Standard and Technology) has successfully standardized AES (Advanced Encryption Standard) for confidentiality and SHA (Secure Hash Algorithm) for integr...