From ee9e68cd307e105478130f77b994788d2b4f989e Mon Sep 17 00:00:00 2001 From: Gregory Maxwell Date: Tue, 4 Jun 2019 01:52:44 +0000 Subject: [PATCH] Add a descriptive comment for secp256k1_ecmult_const. --- src/ecmult_const.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/ecmult_const.h b/src/ecmult_const.h index d4804b8b68faa..03bb33257d532 100644 --- a/src/ecmult_const.h +++ b/src/ecmult_const.h @@ -10,8 +10,11 @@ #include "scalar.h" #include "group.h" -/* Here `bits` should be set to the maximum bitlength of the _absolute value_ of `q`, plus - * one because we internally sometimes add 2 to the number during the WNAF conversion. */ +/** + * Multiply: R = q*A (in constant-time) + * Here `bits` should be set to the maximum bitlength of the _absolute value_ of `q`, plus + * one because we internally sometimes add 2 to the number during the WNAF conversion. + */ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q, int bits); #endif /* SECP256K1_ECMULT_CONST_H */