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38 Commits

Author SHA1 Message Date
Jonas Nick
de54a1eff7 musig2: clean up ctx doc in include file 2024-01-23 16:04:45 +01:00
Sanket Kanjalkar
e2eb3fae40 Make *key_cache const in musig_pubkey_get 2024-01-07 07:44:11 -08:00
Jonas Nick
a9a5c24de2
Merge commits '56582094 427bc3cd 0cf2fb91 9c8c4f44 70be3cad f16a709f 464a9115 1d8f3675 afd8b23b 2bca0a5c 2d51a454 4e682626 a0f4644f 145078c4 7b7503da ec98fced 346a053d ' into temp-merge-1269 2023-07-24 13:46:43 +00:00
Jonas Nick
6c54db1987
Merge commits '2286f809 751c4354 477f02c4 e3f84777 5c789dcd 8c949f56 21ffe4b2 ' into temp-merge-1055 2023-07-18 12:51:17 +00:00
Jonas Nick
4ab4ec38a0
musig: add note about missing verification to partial_sign to doc 2023-05-11 17:50:18 +00:00
Jonas Nick
f50ad76004
musig: update version number of BIP 2023-05-11 17:50:06 +00:00
Jonas Nick
bd57a017aa
musig: include pubkey in secnonce and compare when signing 2023-03-03 12:55:00 +00:00
Jonas Nick
068e6a036a
musig: add test vectors from BIP MuSig 2023-02-13 14:03:51 +00:00
Jonas Nick
36621d13be
musig: update to BIP v1.0.0-rc.2 "Add ''pk'' arg to ''NonceGen''" 2023-02-13 14:03:51 +00:00
Jonas Nick
d717a4980b
musig: update to BIP v0.8 "Switch from X-only to plain pk inputs." 2023-02-13 14:03:51 +00:00
Jonas Nick
060887e9d7
musig: update to BIP v0.5.1 "Rename ordinary tweaking to plain" 2023-02-13 14:03:51 +00:00
Tim Ruffing
8fd97d8116
Merge ElementsProject/secp256k1-zkp#158: Small musig improvements 
d895b10c18b8aa19a77f0a80f318e1a2052e7c9b musig: mention musig.md in example (Jonas Nick)
588009d26ffc58864b6e9fc3f1ab2eae633476c3 musig: improve doc of partial_sig_verify regarding signing sessions (Jonas Nick)
b1094953c4497947222df12ef8f9adb2191e2b17 musig: remove superfluous comment (Jonas Nick)

Pull request description:

ACKs for top commit:
  robot-dreams:
    ACK d895b10c18b8aa19a77f0a80f318e1a2052e7c9b
  real-or-random:
    ACK d895b10c18b8aa19a77f0a80f318e1a2052e7c9b

Tree-SHA512: 35169240868500bb27e5a6b8779f090d3f33a6c0cb1a4574e6e53e9c52782f454fe7df6d49b68e0acdd174e25a756bf6267339f0d4e94f28d5ae49145f21e298
 2022-01-25 10:53:38 +01:00
Jonas Nick
37107361a0 musig: allow ordinary, non-xonly tweaking 2022-01-21 17:07:06 +00:00
Jonas Nick
c519b46879 musig: add pubkey_get to obtain a full pubkey from a keyagg_cache 2022-01-21 17:07:06 +00:00
Jonas Nick
588009d26f musig: improve doc of partial_sig_verify regarding signing sessions 2022-01-02 19:42:15 +00:00
Jonas Nick
ac1e36769d musig: turn off multiexponentiation for now 
Before turning it on we need to have a discussion about our confidence in the
correctness of the multiexponentiation code.
 2021-12-17 13:47:43 +00:00
Jonas Nick
22c88815c7 musig: replace MuSig(1) with MuSig2 2021-12-17 13:47:23 +00:00
Jonas Nick
9124ce0d9c musig: fix session_init argument NULL check 2021-08-18 14:02:29 +00:00
Jonas Nick
56014e8ca0 musig: change pubkey_combine arg to array of pointers to pks 
... instead of taking an array of pubkeys directly
 2021-07-14 19:59:38 +00:00
Jonas Nick
4bc46d836e musig: optimize key aggregation using const 1 for 2nd key 2021-07-14 19:58:54 +00:00
Jonas Nick
2310849f50 musig: compute musig coefficient by hashing key instead of index 2021-07-14 19:41:38 +00:00
Jonas Nick
9b3d7bf536 extrakeys: add xonly_sort function 2021-07-14 19:41:38 +00:00
Jonas Nick
b9d91b3ecb musig: add pubkey_tweak_add function to allow taproot tweaking 2020-11-30 15:40:09 +00:00
Jonas Nick
5b4eb18ec5 musig: shorten partial nonce byte array from 33 to 32 bytes 2020-11-13 16:05:37 +00:00
Jonas Nick
62f0b2d867 musig: make musig partial nonces byte arrays instead of "pubkeys" 2020-11-13 16:05:37 +00:00
Jonas Nick
73792e4a27 musig: represent a combined_nonce as an xonly_pubkey 2020-11-13 16:05:36 +00:00
Jonas Nick
2117e7466a musig: improve variable naming and be consistent with schnorrsig module 
session_initialize -> session_init
msg_is_set -> is_msg_set
is_negated -> pk_parity
nonce_is_negated -> nonce_parity
 2020-11-13 16:05:36 +00:00
Jonas Nick
ebc31f1f9d musig: add ARG_CHECKs to functions to help debuggability 2020-11-13 16:05:36 +00:00
Jonas Nick
ac2d0e6697 musig: add magic to session to detect if session is uninitalized 2020-11-13 16:05:36 +00:00
Jonas Nick
29b4bd85d7 musig: simplify state machine by adding explicit round to session struct 2020-11-13 16:05:36 +00:00
Jonas Nick
23900a0d86 Fix the MuSig module after integrating bip-schnorr updates 
1.  using xonly_pubkeys in MuSig for input public keys and the combined
    pk. For that to work we need to store whether the MuSig aggregated point
    has an even y in the session, may need to negate each signers secret
    key and may need to negate each signers public key in
    musig_partial_sig_verify.
2.  using a tagged hash for the message hash.
3.  use !fe_is_odd in place of fe_is_quad_var
 2020-11-04 21:47:09 +00:00
Jonas Nick
96201b4f6e Require message in musig protocol in an earlier state. In particular, 
remove the set_msg function and require the message in get_public_nonce
at the latest.
 2020-07-24 14:59:36 +02:00
Jonas Nick
b368a5d163 Fix ARG_NONNULL macro usage in musig include 2020-07-24 14:59:36 +02:00
Jonas Nick
bedff79848 Add cplusplus directive to musig include 2020-07-24 14:59:36 +02:00
Jonas Nick
d924027765 Add tweak32 parameter to musig_partial_sig_combine which allows to sign for p2c/taproot commitments 2020-07-24 14:59:36 +02:00
Andrew Poelstra
3424cb1fa3 musig: add user documentation 2020-07-24 14:59:36 +02:00
Jonas Nick
13ef445721 Add 3-of-3 MuSig example 2020-07-24 14:59:36 +02:00
Jonas Nick
b86c210747 Add MuSig module which allows creating n-of-n multisignatures and adaptor signatures. 2020-07-24 14:59:36 +02:00