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authorFelix Lange <fjl@twurst.com>2015-07-22 06:35:37 +0800
committerFelix Lange <fjl@twurst.com>2015-07-23 00:50:31 +0800
commitf4acdea402ab3e3387a74c89dcca555bbc6dd9a7 (patch)
treeaaa0267572827a91bfc99ca7ba8a8c78118336ad
parentd1d45aa8390731ad9d0422e6bbf2d451d11dab4d (diff)
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crypto: fix license of curve.go
crypto/curve.go is not our code and has its own license. This commit excludes it in update-license.go and removes our GPL header.
-rw-r--r--build/update-license.go1
-rw-r--r--crypto/curve.go65
2 files changed, 39 insertions, 27 deletions
diff --git a/build/update-license.go b/build/update-license.go
index abb17f872..98c122193 100644
--- a/build/update-license.go
+++ b/build/update-license.go
@@ -48,6 +48,7 @@ var (
"Godeps/", "tests/files/", "build/",
// don't relicense vendored packages
"crypto/sha3/", "crypto/ecies/", "logger/glog/",
+ "crypto/curve.go",
}
// paths with this prefix are licensed as GPL. all other files are LGPL.
diff --git a/crypto/curve.go b/crypto/curve.go
index e07a06071..841766a30 100644
--- a/crypto/curve.go
+++ b/crypto/curve.go
@@ -1,36 +1,36 @@
-// Copyright 2014 The go-ethereum Authors
-// This file is part of go-ethereum.
+// Copyright 2010 The Go Authors. All rights reserved.
+// Copyright 2011 ThePiachu. All rights reserved.
//
-// go-ethereum 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.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
//
-// go-ethereum 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.
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+// * The name of ThePiachu may not be used to endorse or promote products
+// derived from this software without specific prior written permission.
//
-// You should have received a copy of the GNU Lesser General Public License
-// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package crypto
-// Copyright 2010 The Go Authors. All rights reserved.
-// Copyright 2011 ThePiachu. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package bitelliptic implements several Koblitz elliptic curves over prime
-// fields.
-
-// This package operates, internally, on Jacobian coordinates. For a given
-// (x, y) position on the curve, the Jacobian coordinates are (x1, y1, z1)
-// where x = x1/z1² and y = y1/z1³. The greatest speedups come when the whole
-// calculation can be performed within the transform (as in ScalarMult and
-// ScalarBaseMult). But even for Add and Double, it's faster to apply and
-// reverse the transform than to operate in affine coordinates.
-
import (
"crypto/elliptic"
"io"
@@ -38,6 +38,17 @@ import (
"sync"
)
+// This code is from https://github.com/ThePiachu/GoBit and implements
+// several Koblitz elliptic curves over prime fields.
+//
+// The curve methods, internally, on Jacobian coordinates. For a given
+// (x, y) position on the curve, the Jacobian coordinates are (x1, y1,
+// z1) where x = x1/z1² and y = y1/z1³. The greatest speedups come
+// when the whole calculation can be performed within the transform
+// (as in ScalarMult and ScalarBaseMult). But even for Add and Double,
+// it's faster to apply and reverse the transform than to operate in
+// affine coordinates.
+
// A BitCurve represents a Koblitz Curve with a=0.
// See http://www.hyperelliptic.org/EFD/g1p/auto-shortw.html
type BitCurve struct {