From dd83e72d52da0873e0c1a64c5554efa9000a3454 Mon Sep 17 00:00:00 2001 From: Jesse Posner Date: Thu, 1 Sep 2022 22:39:34 -0700 Subject: [PATCH] Add ordinary tweak info --- src/modules/musig/musig.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/modules/musig/musig.md b/src/modules/musig/musig.md index e9d5332b..5c9b8d78 100644 --- a/src/modules/musig/musig.md +++ b/src/modules/musig/musig.md @@ -23,7 +23,7 @@ Therefore, users of the musig module must take great care to make sure of the fo # Key Aggregation and (Taproot) Tweaking Given a set of public keys, the aggregate public key is computed with `secp256k1_musig_pubkey_agg`. -A (Taproot) tweak can be added to the resulting public key with `secp256k1_xonly_pubkey_tweak_add`. +A (Taproot) tweak can be added to the resulting public key with `secp256k1_xonly_pubkey_tweak_add` and an ordinary tweak can be added with `secp256k1_ec_pubkey_tweak_add`. # Signing @@ -32,7 +32,7 @@ Essentially, the protocol proceeds in the following steps: 1. Generate a keypair with `secp256k1_keypair_create` and obtain the xonly public key with `secp256k1_keypair_xonly_pub`. 2. Call `secp256k1_musig_pubkey_agg` with the xonly pubkeys of all participants. -3. Optionally add a (Taproot) tweak with `secp256k1_musig_pubkey_xonly_tweak_add`. +3. Optionally add a (Taproot) tweak with `secp256k1_musig_pubkey_xonly_tweak_add` and an ordinary tweak with `secp256k1_musig_pubkey_ec_tweak_add`. 4. Generate a pair of secret and public nonce with `secp256k1_musig_nonce_gen` and send the public nonce to the other signers. 5. Someone (not necessarily the signer) aggregates the public nonce with `secp256k1_musig_nonce_agg` and sends it to the signers. 6. Process the aggregate nonce with `secp256k1_musig_nonce_process`.