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musig: ctimetests: fix _declassify range for generated nonce points

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The area marked as non-secret exceeds the nonce_pts array in the
second iteration of the for loop. Fix that by passing the correct
size to the _declassify call.
This commit is contained in:
Sebastian Falbesoner
2024-10-20 02:25:06 +02:00
parent 01b5893389
commit 57eda3ba30
1 changed files with 1 additions and 1 deletions
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2
src/modules/musig/session_impl.h
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@@ -448,7 +448,7 @@ int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_m
secp256k1_gej nonce_ptj; secp256k1_gej nonce_ptj;
secp256k1_ecmult_gen(&ctx->ecmult_gen_ctx, &nonce_ptj, &k[i]); secp256k1_ecmult_gen(&ctx->ecmult_gen_ctx, &nonce_ptj, &k[i]);
secp256k1_ge_set_gej(&nonce_pts[i], &nonce_ptj); secp256k1_ge_set_gej(&nonce_pts[i], &nonce_ptj);
secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts)); secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts[i]));
secp256k1_scalar_clear(&k[i]); secp256k1_scalar_clear(&k[i]);
} }
/* None of the nonce_pts will be infinity because k != 0 with overwhelming /* None of the nonce_pts will be infinity because k != 0 with overwhelming