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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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67

Reverse Engineer An Algorithm Challenge In Our Cryptography Contest

This week, we begin to reverse engineer the home-grown encryption algorithm discussed last week. Last week I offered you five examples of "encrypted" text that were generated by a home-grown crypto system. Your job was to reverse engineer the algorithm. . .. This week, we begin to reverse engineer the home-grown encryption algorithm discussed last week. Last week I offered you five examples of "encrypted" text that were generated by a home-grown crypto system. Your job was to reverse engineer the algorithm . Well, the week went by and folks did take a stab at it, but no one managed to break it yet. So I'm extending the contest another week. This article will provide the first part of the algorithm which should get you started. Once you get through this layer, you should be able to work through the solution in a few shifts.[2] If you break the code, write me email and the best writeup describing the algorithm will get a copy of Hacking Linux Exposed, Second Edition. So, let's look at the first part of my reverse engineering. We had only encrypted data to work with, and some idea of what acceptable contents would look like, in this case, normal English text. You might argue in an ideal world you would not have any idea what the plaintext would look like, but in the real world you can usually hazard a guess. For example if you find encrypted-looking text in a database, the field name will probably indicate what it is. If an email contains only an encrypted body, then it is likely composed of readable characters. The five encrypted strings were as follows: # String 1 !!@!1P!=P!?P!=P!?`!> `! @!A0!,P!> @!B@!A` # String 2 !T`!M0!TP!V0!X0!Y0!C@!P0!Y0!W0!UP!Y@!H@ ... . Join our coding challenge and immerse yourself in deconstructing a unique cipher system for an opportunity to triumph!. encryption challenge, cryptanalysis techniques, home-grown algorithms, code cracking contest. . LinuxSecurity.com Team

Calendar 2 Jan 29, 2003 User Avatar LinuxSecurity.com Team Cryptography
67

Thawte Computing's Cryptography Challenge Attracts Global Coders

A cryptography challenge run by Cape Town-based Thawte Computing is attracting interest from around the world with entrants from as far as Afghanistan and Barbados struggling to crack the code. . .. A cryptography challenge run by Cape Town-based Thawte Computing is attracting interest from around the world with entrants from as far as Afghanistan and Barbados struggling to crack the code posted on its Web site. The challenge, primarily a marketing exercise run by the company started by space traveller Mark Shuttleworth, will run until the code has been cracked, says Melanie Reed, Thawte marketing co-ordinator. "They are competing against one another, not the clock." Reed says the challenge is quite tough and no one has solved it yet. Thawte will issue clues to the challenge every two weeks until it has been solved. The link for this article located at ITWeb is no longer available. . A new cryptography contest hosted by CipherTech in Johannesburg is drawing international interest and engaging competitors.. Cryptography Challenge, Code Cracking, Global Participation. . LinuxSecurity.com Team

Calendar 2 Jul 08, 2002 User Avatar LinuxSecurity.com Team Cryptography
67

Cracking 108-Bit Encryption: A Collaboration Of Science And Open Source

597 computers get stuck into a feat of number crunching madness. Will Knight reports A group of French scientists joined forces with open source enthusiasts this week and claim to have broken a public encryption key of unprecedented strength (108-bit), . . .. 597 computers get stuck into a feat of number crunching madness. Will Knight reports A group of French scientists joined forces with open source enthusiasts this week and claim to have broken a public encryption key of unprecedented strength (108-bit), snatching a world's first in code-breaking. It took 597 different computers, 6 months of number crunching to crack the encryption. The code breaking stunt is part of a challenge set by cryptographic technology firm Certicom which offered a cash prize of $10,000 (£6,200) for the successful code smasher. The encryption is based on a one way maths problem with just two answers. The two lucky individuals who managed to find the these will receive $1,000 each, but $8,000 of the prize money is to be donated to the Free Software Foundation. The link for this article located at ZDNet UK -- is no longer available. . A collective of researchers and hobbyists successfully decrypted a robust public encryption algorithm utilizing a powerful fleet of 597 devices. Learn about their innovative techniques!. code breaking, open source encryption, encryption methods, distributed analysis. . LinuxSecurity.com Team

Calendar 2 Apr 06, 2000 User Avatar LinuxSecurity.com Team Cryptography
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150
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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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