The EFF's US$250,000 DES cracking machine contained 1,856 custom chips and could brute force a DES key in a matter of days — the photo shows a two-sided DES Cracker circuit board fitted with 64 Deep Crack chipsThe EFF's DES cracker "Deep Crack" custom microchip
In cryptography, the EFF DES cracker (nicknamed "Deep Crack") is a machine built by the Electronic Frontier Foundation (EFF) in 1998, to perform a brute force search of the Data Encryption Standard (DES) cipher's key space – that is, to decrypt an encrypted message by trying every possible key. The aim in doing this was to prove that the key size of DES was not sufficient to be secure.
Detailed technical data of this machine, including block diagrams, circuit schematics, VHDL source code of the custom chips and its emulator, have all been published in the book Cracking DES. Its public domain license allows everyone to freely copy, use, or modify its design. To avoid the export regulation on cryptography by the US Government, the source code was distributed not in electronic form but as a hardcopy book, of which the open publication is protected by the First Amendment. Machine-readable metadata is provided to facilitate the transcription of the code into a computer via OCR by readers.[1]
^Electronic Frontier Foundation (1998). Cracking DES - Secrets of Encryption Research, Wiretap Politics & Chip Design. Oreilly & Associates Inc. ISBN 1-56592-520-3. Archived from the original on October 17, 2013. Retrieved October 30, 2016.
In cryptography, the EFFDEScracker (nicknamed "Deep Crack") is a machine built by the Electronic Frontier Foundation (EFF) in 1998, to perform a brute...
Challenges. They coordinated and supported the construction of the EFFDEScracker (nicknamed Deep Crack), using special purpose hardware and software...
feasibility of cracking DES quickly was demonstrated in 1998 when a custom DES-cracker was built by the Electronic Frontier Foundation (EFF), a cyberspace civil...
Triple DES (3DES or TDES), officially the Triple Data Encryption Algorithm (TDEA or Triple DEA), is a symmetric-key block cipher, which applies the DES cipher...
Energy Agency, Issy-les-Moulineaux, France. Retrieved 25 May 2011. "EFFDESCracker Source Code". Cosic.esat.kuleuven.be. Retrieved 8 July 2011. "Disarmament...
Electronic Frontier Foundation (EFF) built a dedicated password cracker using ASICs. Their machine, Deep Crack, broke a DES 56-bit key in 56 hours, testing...
"DESCracker Project". EFF. Archived from the original on May 7, 2017. Retrieved August 26, 2015. On Wednesday, July 17, 1998 the EFFDESCracker, which...
an encryption passphrase or password. The Electronic Frontier Foundation (EFF) argued that this is a violation of the protection from self-incrimination...
mounted by a cyber civil rights group with limited resources; see EFFDEScracker. Even before that demonstration, 56 bits was considered insufficient...
to use the term copyleft. He coined Deep Crack as the name of the EFFDEScracker. He ported the SimCity computer game to several versions of Unix and...
adopted by the U.S. government. It supersedes the Data Encryption Standard (DES), which was published in 1977. The algorithm described by AES is a symmetric-key...
CFB (see below for all), date back to 1981 and were specified in FIPS 81, DES Modes of Operation. In 2001, the US National Institute of Standards and Technology...
open and transparent than its predecessor, the Data Encryption Standard (DES). This process won praise from the open cryptographic community, and helped...
article details the various tables referenced in the Data Encryption Standard (DES) block cipher. All bits and bytes are arranged in big endian order in this...
Government adopted the DES (a cipher based on Lucifer, with changes made by the NSA) in 1976. Like other components of the DES, the iterative nature of...
named a Feistel network after Horst Feistel is notably implemented in the DES cipher. Many other realizations of block ciphers, such as the AES, are classified...
key into four 32-bit pieces and uses them repeatedly in successive rounds. DES has a key schedule in which the 56-bit key is divided into two 28-bit halves;...
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