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Brute Force: Cracking the Data Encryption Standard ******************************************************************************* ------------------------------------------------------------------------------- General Information ------------------------------------------------------------------------------- Type.................: Ebook Part Size............: 2,231,853 bytes ------------------------------------------------------------------------------- Post Information ------------------------------------------------------------------------------- Posted by............: ~tqw~ ------------------------------------------------------------------------------- Release Notes ------------------------------------------------------------------------------- "DES, the workhorse of cryptography and the U.S. government encryption standard for just shy of twenty years (from 1978 to 1997), was used to protect a vast array of sensitive information in the United Stated and throughout the rest of the world. Many cryptographers felt that DES, which was a 56-bit standard, was too easily broken. Computer scientists and industry software experts wanted the U.S. to be able to use and export stronger cryptography. The government resisted, claiming that more robust cryptography would allow terrorists, child pornographers, and drug traffickers to better hide their illicit activities." "In January of 1997, a company called RSA Data Security launched a contest that challenged DES. RSA wrote a secret message, encrypted it using DES, and promised a $10,000 prize to anyone who could decrypt the message, or break the code that hid it. Responding to the challenge and ultimately winning the prize was a group of programmers, computer scientists, and technology enthusiasts who organized themselves into a loose-knit consortium called DESCHALL (for the DES Challenge). They successfully decoded RSA's secret message using tens of thousands of computers all across the U.S. and Canada linked together via the Internet in an unprecedented distributed supercomputing effort. Using a technique called "brute-force," computers participating in the challenge simply began trying every possible decryption key. There were over 72 quadrillion keys to test." Brute Force tells the story of the thousands of volunteers who battled to prove the aging standard for data encryption was too weak and to wrestle strong cryptography from the control of the U.S. government. Matt Curtin, one of the leaders of DESCHALL, explains how DESCHALL broke RSA's secret message and demonstrated to the U.S. governments - and in fact to the world-wide business and technology communities - the need for stronger, publicly tested cryptography. Table of Contents Forward 1 Working late 1 2 Keeping secrets 3 3 Data encryption standard 11 4 Key length 23 5 Discovery 37 6 RSA crypto challenges 41 7 Congress takes note 49 8 Supercomputer 57 9 Organizing DESCHALL 63 10 Needle in a haystack 75 11 Spreading the word 77 12 The race is on 85 13 Clients 91 14 Architecture 97 15 Progress 113 16 Trouble 121 17 Milestones 127 18 Gateways 135 19 Network 139 20 Download 141 21 Short circuit 151 22 DESCHALL community 159 23 Proposal 163 24 In the lead 165 25 Recruiting 169 26 Threats 175 27 Overdrive 189 28 Distributed 199 29 An obstacle 207 30 Export 213 31 Getting word out 215 32 Salvos in the crypto wars 229 33 New competition 235 34 Netlag 239 35 Terminal velocity 241 36 Duct tape 249 37 Showdown in the Senate 255 38 Strong cryptography makes the world a safer place 259 39 Aftermath 267 40 Staying the course 271 41 In retrospect 275 Product Details * ISBN: 0387201092 * ISBN-13: 9780387201092 * Format: Hardcover, 291pp * Publisher: Springer-Verlag New York, LLC * Pub. Date: February 2005 ------------------------------------------------------------------------------- Install Notes ------------------------------------------------------------------------------- Adobe Acrobat Reader Related Torrents
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