cryptanalysis

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In memoriam - Mavis Batey MBE, codebreaker extraordinaire at Bletchley Park

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Mavis Batey MBE, codebreaker extraordinaire at Bletchley Park during World War II, died this week at the age of 92.

Batey's big breakthrough against the Italian military's Enigma encryption machine gives us an fascinating insight into how cryptanalysts think.

SSCC 120 - Vulnerabilities, backdoors, crypto done right, and crypto done wrong [PODCAST]

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Ah, the irony! Good crypto from the bad guys, and bad crypto from the good guys...

Chet and Duck turn the latest security news into an insightful, amusing and educational discussion in the latest episode of their two-weekly podcast.

Boffins 'crack' HTTPS encryption in Lucky Thirteen attack

The security of web transactions is again in the spotlight as a pair of UK cryptographers take aim at TLS.

Like 2011's much-talked-about BEAST attack, it has a groovy name: Lucky Thirteen.

VIDEO: How to solve the RSA 2012 #sophospuzzle

VIDEO: How to solve the RSA 2012 #sophospuzzle

By popular request, here is a video explaining how to solve the cryptographic puzzle we published on our RSA 2012 conference T-shirt...

VIDEO: How to solve the #dragontattoo #sophospuzzle

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By popular request, here is a video explaining how to solve the Dragon Tattoo-themed puzzle we published earlier this week...

FLAMING RETORT - Three words for RSA. Promptness. Clarity. Openness.

FLAMING RETORT - Three words for RSA. Promptness. Clarity. Openness.

It's no good having mandatory data breach disclosure laws if all they teach us is to admit we had a breach. We also need to convey information of obvious practical value to all affected parties.

Three words. Promptness. Clarity. Openness.

Friday evening @ Sydney Uni – time for some crypto!

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Dear Diary, This afternoon I'm giving a guest lecture at the University of Sydney. It'll be a tough gig, but not just because it's at the end of the semester, doesn't affect the final course mark in any way, and Read more…