1 files changed, 0 insertions, 56 deletions
diff --git a/crypto/secp256k1/pubkey_scalar_mul.h b/crypto/secp256k1/pubkey_scalar_mul.h
deleted file mode 100644
index 0511545ec..000000000
--- a/crypto/secp256k1/pubkey_scalar_mul.h
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-/** Multiply point by scalar in constant time.
- *  Returns: 1: multiplication was successful
- *           0: scalar was invalid (zero or overflow)
- *  Args:    ctx:      pointer to a context object (cannot be NULL)
- *  Out:     point:    the multiplied point (usually secret)
- *  In:      point:    pointer to a 64-byte bytepublic point,
-                       encoded as two 256bit big-endian numbers.
- *           scalar:   a 32-byte scalar with which to multiply the point
- */
-int secp256k1_pubkey_scalar_mul(const secp256k1_context* ctx, unsigned char *point, const unsigned char *scalar) {
-    int ret = 0;
-    int overflow = 0;
-    secp256k1_fe feX, feY;
-    secp256k1_gej res;
-    secp256k1_ge ge;
-    secp256k1_scalar s;
-    ARG_CHECK(point != NULL);
-    ARG_CHECK(scalar != NULL);
-    (void)ctx;
-
-    secp256k1_fe_set_b32(&feX, point);
-    secp256k1_fe_set_b32(&feY, point+32);
-    secp256k1_ge_set_xy(&ge, &feX, &feY);
-    secp256k1_scalar_set_b32(&s, scalar, &overflow);
-    if (overflow || secp256k1_scalar_is_zero(&s)) {
-        ret = 0;
-    } else {
-        secp256k1_ecmult_const(&res, &ge, &s);
-        secp256k1_ge_set_gej(&ge, &res);
-        /* Note: can't use secp256k1_pubkey_save here because it is not constant time. */
-        secp256k1_fe_normalize(&ge.x);
-        secp256k1_fe_normalize(&ge.y);
-        secp256k1_fe_get_b32(point, &ge.x);
-        secp256k1_fe_get_b32(point+32, &ge.y);
-        ret = 1;
-    }
-    secp256k1_scalar_clear(&s);
-    return ret;
-}
-