From e22bd0de2f37b831db7c6a57543029a5aac9dd9d Mon Sep 17 00:00:00 2001 From: "jkummerow@chromium.org" Date: Mon, 7 Nov 2011 15:48:38 +0000 Subject: Revert 108866 - crypto: add simple P224 implementation. This is intended to be the underlying group for an EKE implementation for Remoting. BUG=none TEST=crypto_unittests Review URL: http://codereview.chromium.org/8431007 TBR=agl@chromium.org Review URL: http://codereview.chromium.org/8467016 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@108869 0039d316-1c4b-4281-b951-d872f2087c98 --- crypto/p224.h | 56 -------------------------------------------------------- 1 file changed, 56 deletions(-) delete mode 100644 crypto/p224.h (limited to 'crypto/p224.h') diff --git a/crypto/p224.h b/crypto/p224.h deleted file mode 100644 index 58dc0f1..0000000 --- a/crypto/p224.h +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright (c) 2011 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef CRYPTO_P224_H_ -#define CRYPTO_P224_H_ -#pragma once - -#include - -#include "base/basictypes.h" -#include "base/string_piece.h" - -namespace crypto { - -// P224 implements an elliptic curve group, commonly known as P224 and defined -// in FIPS 186-3, section D.2.2. -namespace p224 { - -// An element of the field (ℤ/pℤ) is represented with 8, 28-bit limbs in -// little endian order. -typedef uint32 FieldElement[8]; - -struct Point { - // SetFromString the value of the point from the 56 byte, external - // representation. The external point representation is an (x, y) pair of a - // point on the curve. Each field element is represented as a big-endian - // number < p. - bool SetFromString(const base::StringPiece& in); - - // ToString returns an external representation of the Point. - std::string ToString() const; - - // An Point is represented in Jacobian form (x/z², y/z³). - FieldElement x, y, z; -}; - -// ScalarMult computes *out = in*scalar where scalar is a 28-byte, big-endian -// number. -void ScalarMult(const Point& in, const uint8* scalar, Point* out); - -// ScalarBaseMult computes *out = g*scalar where g is the base point of the -// curve and scalar is a 28-byte, big-endian number. -void ScalarBaseMult(const uint8* scalar, Point* out); - -// Add computes *out = a+b. -void Add(const Point& a, const Point& b, Point* out); - -// Negate calculates out = -a; -void Negate(const Point& a, Point* out); - -} // namespace p224 - -} // namespace crypto - -#endif // CRYPTO_P224_H_ -- cgit v1.1