Date: Fri, 31 Aug 2018 22:54:47 +0200 From: zugtprgfwprz@...rnkuller.de To: oss-security@...ts.openwall.com Subject: Re: Travis CI MITM RCE On 31.08.2018 17:52, Daniel Kahn Gillmor wrote: > In nearly every case where we're talking about automated signature > checking, the cost of shipping the public key instead of (or in addition > to) the fingerprint is negligible. and shipping just the fingerprint > introduces robustness and reliability problems for the signature > verification. Ah, fair enough. Thanks for clarifying this, you're making good points. The robustness issue is indeed something I completely disregarded. Luckily, we've already arrived at a point where keys can be as short as hash values. Ed25519 keys are 32 bytes, i.e., the same length as a SHA256 hash. So there's that :-) All the best, Cheers, Joe -- "A PC without Windows is like a chocolate cake without mustard."
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