Elliptic Curve Back Door - Computerphile
Computerphile1 HN recommender · recommended in 1 month, 2021-2025
554K views · 8 years ago · explainer · evergreen
Dr Mike Pound explains the suspected backdoor in the Dual_EC_DRBG random number generator and how elliptic curve constants could let someone predict its output.
HN points to it as an intuitive explanation of how NIST standardized a backdoored generator.
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4 comments from Hacker News
I recommend this video by Computerphile - He talks about how NIST may have been pressured into enforcing compromised (backdoored?) cryptography methods as a standard - Dual_EC_DRBG to be exact. He also gives a super cool/intuitive breakdown on how this came to be. It will definitely grow some food for thought. ▶ this video
Computerphile video discussing the mathematics around how such a number could have been used in a practical way. ▶ this video link When people say, “Don’t roll your own crypto,” it’s because the field is littered with footguns and (to stretch an analogy) guns in cryptography launch explosives.
Long story short is that we don't know for sure, but there are some possibilities that's makes it plausible ▶ this video
Computerphile[1] did a video about the specifics of the backdoor in Dual EC DRBG. As i understand it, the hackers replaced a magic number Q with a different value than the standards compliant one, where they had pre-computed P. [1]: ▶ this video