OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [crypto/] [subtle/] [constant_time_test.go] - Blame information for rev 747

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 747 jeremybenn 
// Copyright 2009 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 subtle
6 
 
7 
import (
8 
        "testing"
9 
        "testing/quick"
10 
)
11 
 
12 
type TestConstantTimeCompareStruct struct {
13 
        a, b []byte
14 
        out  int
15 
}
16 
 
17 
var testConstantTimeCompareData = []TestConstantTimeCompareStruct{
18 
        {[]byte{}, []byte{}, 1},
19 
        {[]byte{0x11}, []byte{0x11}, 1},
20 
        {[]byte{0x12}, []byte{0x11}, 0},
21 
}
22 
 
23 
func TestConstantTimeCompare(t *testing.T) {
24 
        for i, test := range testConstantTimeCompareData {
25 
                if r := ConstantTimeCompare(test.a, test.b); r != test.out {
26 
                        t.Errorf("#%d bad result (got %x, want %x)", i, r, test.out)
27 
                }
28 
        }
29 
}
30 
 
31 
type TestConstantTimeByteEqStruct struct {
32 
        a, b uint8
33 
        out  int
34 
}
35 
 
36 
var testConstandTimeByteEqData = []TestConstantTimeByteEqStruct{
37 
        {0, 0, 1},
38 
        {0, 1, 0},
39 
        {1, 0, 0},
40 
        {0xff, 0xff, 1},
41 
        {0xff, 0xfe, 0},
42 
}
43 
 
44 
func byteEq(a, b uint8) int {
45 
        if a == b {
46 
                return 1
47 
        }
48 
        return 0
49 
}
50 
 
51 
func TestConstantTimeByteEq(t *testing.T) {
52 
        for i, test := range testConstandTimeByteEqData {
53 
                if r := ConstantTimeByteEq(test.a, test.b); r != test.out {
54 
                        t.Errorf("#%d bad result (got %x, want %x)", i, r, test.out)
55 
                }
56 
        }
57 
        err := quick.CheckEqual(ConstantTimeByteEq, byteEq, nil)
58 
        if err != nil {
59 
                t.Error(err)
60 
        }
61 
}
62 
 
63 
func eq(a, b int32) int {
64 
        if a == b {
65 
                return 1
66 
        }
67 
        return 0
68 
}
69 
 
70 
func TestConstantTimeEq(t *testing.T) {
71 
        err := quick.CheckEqual(ConstantTimeEq, eq, nil)
72 
        if err != nil {
73 
                t.Error(err)
74 
        }
75 
}
76 
 
77 
func makeCopy(v int, x, y []byte) []byte {
78 
        if len(x) > len(y) {
79 
                x = x[0:len(y)]
80 
        } else {
81 
                y = y[0:len(x)]
82 
        }
83 
        if v == 1 {
84 
                copy(x, y)
85 
        }
86 
        return x
87 
}
88 
 
89 
func constantTimeCopyWrapper(v int, x, y []byte) []byte {
90 
        if len(x) > len(y) {
91 
                x = x[0:len(y)]
92 
        } else {
93 
                y = y[0:len(x)]
94 
        }
95 
        v &= 1
96 
        ConstantTimeCopy(v, x, y)
97 
        return x
98 
}
99 
 
100 
func TestConstantTimeCopy(t *testing.T) {
101 
        err := quick.CheckEqual(constantTimeCopyWrapper, makeCopy, nil)
102 
        if err != nil {
103 
                t.Error(err)
104 
        }
105 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.