diff options
Diffstat (limited to 'vendor/golang.org/x/crypto/poly1305/poly1305_test.go')
-rw-r--r-- | vendor/golang.org/x/crypto/poly1305/poly1305_test.go | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/vendor/golang.org/x/crypto/poly1305/poly1305_test.go b/vendor/golang.org/x/crypto/poly1305/poly1305_test.go deleted file mode 100644 index 256bdbb..0000000 --- a/vendor/golang.org/x/crypto/poly1305/poly1305_test.go +++ /dev/null @@ -1,132 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package poly1305 - -import ( - "encoding/hex" - "flag" - "testing" - "unsafe" -) - -var stressFlag = flag.Bool("stress", false, "run slow stress tests") - -type test struct { - in string - key string - tag string -} - -func (t *test) Input() []byte { - in, err := hex.DecodeString(t.in) - if err != nil { - panic(err) - } - return in -} - -func (t *test) Key() [32]byte { - buf, err := hex.DecodeString(t.key) - if err != nil { - panic(err) - } - var key [32]byte - copy(key[:], buf[:32]) - return key -} - -func (t *test) Tag() [16]byte { - buf, err := hex.DecodeString(t.tag) - if err != nil { - panic(err) - } - var tag [16]byte - copy(tag[:], buf[:16]) - return tag -} - -func testSum(t *testing.T, unaligned bool, sumImpl func(tag *[TagSize]byte, msg []byte, key *[32]byte)) { - var tag [16]byte - for i, v := range testData { - in := v.Input() - if unaligned { - in = unalignBytes(in) - } - key := v.Key() - sumImpl(&tag, in, &key) - if tag != v.Tag() { - t.Errorf("%d: expected %x, got %x", i, v.Tag(), tag[:]) - } - } -} - -func TestBurnin(t *testing.T) { - // This test can be used to sanity-check significant changes. It can - // take about many minutes to run, even on fast machines. It's disabled - // by default. - if !*stressFlag { - t.Skip("skipping without -stress") - } - - var key [32]byte - var input [25]byte - var output [16]byte - - for i := range key { - key[i] = 1 - } - for i := range input { - input[i] = 2 - } - - for i := uint64(0); i < 1e10; i++ { - Sum(&output, input[:], &key) - copy(key[0:], output[:]) - copy(key[16:], output[:]) - copy(input[:], output[:]) - copy(input[16:], output[:]) - } - - const expected = "5e3b866aea0b636d240c83c428f84bfa" - if got := hex.EncodeToString(output[:]); got != expected { - t.Errorf("expected %s, got %s", expected, got) - } -} - -func TestSum(t *testing.T) { testSum(t, false, Sum) } -func TestSumUnaligned(t *testing.T) { testSum(t, true, Sum) } -func TestSumGeneric(t *testing.T) { testSum(t, false, sumGeneric) } -func TestSumGenericUnaligned(t *testing.T) { testSum(t, true, sumGeneric) } - -func benchmark(b *testing.B, size int, unaligned bool) { - var out [16]byte - var key [32]byte - in := make([]byte, size) - if unaligned { - in = unalignBytes(in) - } - b.SetBytes(int64(len(in))) - b.ResetTimer() - for i := 0; i < b.N; i++ { - Sum(&out, in, &key) - } -} - -func Benchmark64(b *testing.B) { benchmark(b, 64, false) } -func Benchmark1K(b *testing.B) { benchmark(b, 1024, false) } -func Benchmark64Unaligned(b *testing.B) { benchmark(b, 64, true) } -func Benchmark1KUnaligned(b *testing.B) { benchmark(b, 1024, true) } -func Benchmark2M(b *testing.B) { benchmark(b, 2097152, true) } - -func unalignBytes(in []byte) []byte { - out := make([]byte, len(in)+1) - if uintptr(unsafe.Pointer(&out[0]))&(unsafe.Alignof(uint32(0))-1) == 0 { - out = out[1:] - } else { - out = out[:len(in)] - } - copy(out, in) - return out -} |