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fix up the keypinning comments

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This commit is contained in:
Roger Dingledine 2021-03-24 18:17:13 -04:00
parent 962b15aa6f
commit 6c14f9076f
1 changed files with 5 additions and 7 deletions
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12
src/feature/dirauth/keypin.c
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@ -58,18 +58,16 @@
* with which Ed25519 keys, and force such associations to be permanent.
*
* This module implements a key-pinning mechanism to ensure that it's safe
* to use RSA keys as identitifers even as we migrate to Ed25519 keys. It
* remembers, for every Ed25519 key we've seen, what the associated Ed25519
* to use RSA keys as identifiers even as we migrate to Ed25519 keys. It
* remembers, for every Ed25519 key we've seen, what the associated RSA
* key is. This way, if we see a different Ed25519 key with that RSA key,
* we'll know that there's a mismatch.
*
* (As of this writing, these key associations are advisory only, mostly
* because some relay operators kept mishandling their Ed25519 keys during
* the initial Ed25519 rollout. We should fix this problem, and then toggle
* the AuthDirPinKeys option.)
* As of Tor 0.3.0.2-alpha the AuthDirPinKeys option has been on, meaning
* we drop descriptors with mismatches.
*
* We persist these entries to disk using a simple format, where each line
* has a base64-encoded RSA SHA1 hash, then a base64-endoded Ed25519 key.
* has a base64-encoded RSA SHA1 hash, then a base64-encoded Ed25519 key.
* Empty lines, malformed lines, and lines beginning with # are
* ignored. Lines beginning with @ are reserved for future extensions.
*