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Smart cards are often used in different applications which require strong security protection and authentication; such as corporate organization, government, banks etc. its popularity is increasing due to its price and safety. Several cryptographic algorithms have been implemented to smart cards among them we find the DES (Data Encryption Standard). In this paper we propose to compare and find the...
E-HATS is a symmetric key encryption algorithm which encrypts and decrypts a 128-bit data block. E-HATS inherits the simplicity, feistel nature of DES and security analogous to AES. Key Updation is addressed by 16 additional bits in the cipher key. A Dynamic Substitution Rule is used in the substitution step. At the software level, E-HATS exhibits superior avalanche characteristics, achieves a reduction...
In allusion to the malpractice about pure software encryption techniques, this article puts forward an exploring thought and design process of a hardware encryption and decryption system. This system applies DES encryption algorithm, implements hardware encryption and on-line upgrade. It adopts FPGA chip and MCU as the control cores, applies microchip control technology to implement PCI bus protocol,...
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