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author | Nick Mathewson <nickm@torproject.org> | 2021-12-08 11:25:09 -0500 |
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committer | Nick Mathewson <nickm@torproject.org> | 2021-12-08 11:25:09 -0500 |
commit | 57d1e7d163910781b8b08dbbaa397c1d7c06abb7 (patch) | |
tree | 94b8af8b921421b7ea4bb0589915e22a7297919d /proposals/BY_INDEX.md | |
parent | 583d028d4a637e1c0eabeb331a3a8bf4d775d15d (diff) | |
download | torspec-57d1e7d163910781b8b08dbbaa397c1d7c06abb7.tar.gz torspec-57d1e7d163910781b8b08dbbaa397c1d7c06abb7.zip |
Clarify how we derive ed25519 for cross-certification.
The descriptor format uses a curve25519->ed25519 conversion
algorithm to cross-certify descriptors with their ntor onion keys.
This patch clarifies two aspects of the algorithm:
1. When deriving a private key, how to derive the part of the
private key that _isn't_ a point on the curve.
2. That there are two algorithms here, one for private->private and
one for public->public.
Diffstat (limited to 'proposals/BY_INDEX.md')
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