libgo/go/golang_org/x/crypto/curve25519/curve25519_test.go

   1 // Copyright 2012 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package curve25519
   6
   7 import (
   8         "fmt"
   9         "testing"
  10 )
  11
  12 const expectedHex = "89161fde887b2b53de549af483940106ecc114d6982daa98256de23bdf77661a"
  13
  14 func TestBaseScalarMult(t *testing.T) {
  15         var a, b [32]byte
  16         in := &a
  17         out := &b
  18         a[0] = 1
  19
  20         for i := 0; i < 200; i++ {
  21                 ScalarBaseMult(out, in)
  22                 in, out = out, in
  23         }
  24
  25         result := fmt.Sprintf("%x", in[:])
  26         if result != expectedHex {
  27                 t.Errorf("incorrect result: got %s, want %s", result, expectedHex)
  28         }
  29 }
  30
  31 func BenchmarkScalarBaseMult(b *testing.B) {
  32         var in, out [32]byte
  33         in[0] = 1
  34
  35         b.SetBytes(32)
  36         for i := 0; i < b.N; i++ {
  37                 ScalarBaseMult(&out, &in)
  38         }
  39 }