sign: switch to P-256 #662
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This is faster than P-384, is well-supported, and is well within security margins. Signed-off-by: William Woodruff <william@trailofbits.com>
haydentherapper
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May 31, 2023
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Rekor doesn’t support ed25519 for hashedrekord because it requires the preimage, not the hash. See sigstore/rekor#1325 for a fix, haven’t had a chance to double check that’ll work.
Cool, thanks! I think the Python client will be blocked on ed25519-ph anyways due to Cryptography not supporting it (in part because OpenSSL in turn doesn't). |
Signed-off-by: William Woodruff <william@trailofbits.com>
di
previously approved these changes
Jun 5, 2023
Signed-off-by: William Woodruff <william@trailofbits.com>
di
approved these changes
Jun 7, 2023
ccordoui
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This is faster than P-384, is well-supported, and is well within security margins. Signed-off-by: William Woodruff <william@trailofbits.com>
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This is faster than P-384, is well-supported, and is well within security margins.
Longer term I'd like to switch to ed25519, but I'm having some trouble getting Rekor to accept
hashedrekordentries for ed25519 signatures.cc @alex