54b04fdc21
gopls currently litters our project with a sea of red, because it assumes Go files are part of a package, but we have a lot of standalone Go scripts. (If there are C files in the same directory as the script, it gets upset about cgo. If there are multiple standalone scripts in the same directory, it gets uspet about duplicate files.) Per https://github.com/golang/go/issues/49657 and https://github.com/golang/tools/blob/master/gopls/doc/settings.md#standalonetags-string, the convention seems to be a go:build ignore tag. Newer versions of gopls run in a "standalone" mode, so we still get all the nice LSP features. As part of this, I had to align the license header comments from /* block comments */ to // line comments. Go build constraints can only be preceded by blank lines and line comments. Block comments apparently aren't allowed. (See https://pkg.go.dev/cmd/go#hdr-Build_constraints.) If I leave the file unconverted, go fmt will immediately move the comment to above the license block. Change-Id: I47c69255522e9aae2bdb97a6e83fcc6ce0cf29d5 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/56525 Commit-Queue: Adam Langley <agl@google.com> Reviewed-by: Adam Langley <agl@google.com> Auto-Submit: David Benjamin <davidben@google.com>
63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
// Copyright (c) 2018, Google Inc.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//go:build ignore
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package main
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import (
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"crypto/elliptic"
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"fmt"
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"math/big"
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)
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const numPoints = 64
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func printPadded(key string, n, max *big.Int) {
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padded := make([]byte, len(max.Bytes()))
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b := n.Bytes()
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copy(padded[len(padded)-len(b):], b)
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fmt.Printf("%s = %x\n", key, padded)
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}
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func printMultiples(name string, curve elliptic.Curve) {
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n := new(big.Int)
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for i := -numPoints; i <= numPoints; i++ {
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fmt.Printf("Curve = %s\n", name)
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n.SetInt64(int64(i))
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if i < 0 {
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n = n.Add(n, curve.Params().N)
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}
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fmt.Printf("# N = %d\n", i)
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printPadded("N", n, curve.Params().N)
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x, y := curve.ScalarBaseMult(n.Bytes())
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printPadded("X", x, curve.Params().P)
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printPadded("Y", y, curve.Params().P)
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fmt.Printf("\n")
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}
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}
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func main() {
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fmt.Printf(`# This file contains multiples of the base point for various curves. The point
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# at infinity is represented as X = 0, Y = 0.
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#
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# This file is generated by make_ec_scalar_base_mult_tests.go
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`)
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printMultiples("P-224", elliptic.P224())
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printMultiples("P-256", elliptic.P256())
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printMultiples("P-384", elliptic.P384())
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printMultiples("P-521", elliptic.P521())
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}
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