Permit COMB_BITS < 256 for exhaustive tests

2022-01-04 18:46:22 -05:00
parent 39b2f2a321
commit a043940253
7 changed files with 64 additions and 46 deletions
--- a/src/ecmult_gen_impl.h
+++ b/src/ecmult_gen_impl.h
@@ -109,7 +109,7 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25
    /* Compute the scalar d = (gn + ctx->scalar_offset). */
    secp256k1_scalar_add(&d, &ctx->scalar_offset, gn);
    /* Convert to recoded array. */
-    for (i = 0; i < 8; ++i) {
+    for (i = 0; i < 8 && i < ((COMB_BITS + 31) >> 5); ++i) {
        recoded[i] = secp256k1_scalar_get_bits_limb32(&d, 32 * i, 32);
    }
    secp256k1_scalar_clear(&d);