sha1 pgp fingerprint

Werner Koch wk at
Thu Jan 26 18:19:11 CET 2017

On Thu, 26 Jan 2017 10:56, peter at said:

> second-preimage attack. The problems with SHA-1 are with collision
> resistance, not preimage attacks.

Correct, but we should also mention that even collissions are not yet a
current problem - but one we definitely want to be prepared for.

The whole fuzz about replacing SHA-1 from https (I write https and not
TLS for a reason) may help to learn about algorithm replacement
procedures for the future.  Replacing SHA-1 in X.509 certificates, as
used for the Web, will not magically make the Web in any way more
secure.  The problems with the Web infrastructure are not due to SHA-1
or even RSA-1024; Shamir's old rule still holds: "Crypto will not be
broken, it will by bypassed".



Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.
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