github.com/bigzoro/my_simplechain@v0.0.0-20240315012955-8ad0a2a29bb9/crypto/scrypt/scrypt_test.go

// 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 scrypt

import (
	"bytes"
	"testing"
)

type testVector struct {
	password string
	salt     string
	N, r, p  int
	output   []byte
}

var good = []testVector{
	{
		"password",
		"salt",
		2, 10, 10,
		[]byte{
			0x46, 0xdd, 0xe6, 0xca, 0xc9, 0x99, 0x77, 0x78, 0x2c,
			0x25, 0x3a, 0xde, 0x7f, 0x5a, 0x60, 0x9e, 0xc0, 0x61,
			0xf, 0xdc, 0xa3, 0x56, 0xd4, 0x2a, 0x1b, 0x5c, 0x4a,
			0x1a, 0xe, 0x74, 0x40, 0x5f,
		},
	},
	{
		"password",
		"salt",
		16, 100, 100,
		[]byte{
			0xad, 0xde, 0x5f, 0x33, 0xd2, 0xae, 0x96, 0xf7, 0x66,
			0xb2, 0xf3, 0x53, 0xfc, 0x9c, 0xa9, 0xb, 0x3b, 0xfa,
			0x22, 0x8f, 0x2d, 0xe9, 0x3, 0x67, 0x90, 0x6c, 0x0,
			0xc5, 0xbe, 0x96, 0xb0, 0x24,
		},
	},
	{
		"this is a long \000 password",
		"and this is a long \000 salt",
		16384, 8, 1,
		[]byte{
			0xe1, 0x48, 0x46, 0x73, 0xd9, 0x76, 0xf0, 0x1d, 0xd8,
			0xfb, 0x7c, 0x28, 0xe6, 0x9a, 0xf4, 0x8d, 0x18, 0x3f,
			0x6d, 0x9b, 0x79, 0x1, 0x91, 0xcb, 0x3f, 0x7, 0xad,
			0x15, 0x40, 0xbb, 0xf, 0x18, 0x96, 0x7d, 0xf0, 0x62,
			0x31, 0x9b, 0x60, 0x23, 0x84, 0xc2, 0xe0, 0x50, 0xfb,
			0xe, 0x80, 0x5f, 0x8a, 0x79, 0x54, 0x42, 0x6f, 0x1e,
			0x70, 0x73, 0xdc, 0x19, 0xb3, 0xf1, 0xd9, 0x88, 0x38,
			0xb1, 0x3d, 0x20, 0x12, 0x54, 0x9c, 0x64, 0x21, 0xd6,
			0x2, 0x9, 0xe8, 0x21, 0xbd,
		},
	},
	{
		"p",
		"s",
		2, 1, 1,
		[]byte{
			0xae, 0x3d, 0x65, 0x76, 0x23, 0xf9, 0x1f, 0x5b, 0x95,
			0x86, 0x69, 0x9d, 0xe0, 0x3f, 0xec, 0x87,
		},
	},

	{
		"",
		"",
		16, 1, 1,
		[]byte{
			0x2c, 0xee, 0x14, 0x7, 0xab, 0xf2, 0x52, 0xaa, 0x3,
			0x40, 0xc8, 0x50, 0xbd, 0x4e, 0xcd, 0x59, 0xac, 0x2b,
			0x31, 0xf6, 0x3c, 0x41, 0xb3, 0x87, 0x7c, 0x25, 0xa8,
			0xe7, 0x3b, 0xbd, 0xd4, 0x7e, 0x66, 0x7d, 0x61, 0xd0,
			0xde, 0x42, 0x7c, 0x68, 0x14, 0x1e, 0x8e, 0xe1, 0xd7,
			0x27, 0xae, 0xc2, 0xa9, 0xf3, 0x29, 0xe8, 0x17, 0xb2,
			0x11, 0x36, 0x2, 0xec, 0xdf, 0x8d, 0xa1, 0xe2, 0x45,
			0x10,
		},
	},
	{
		"password",
		"NaCl",
		1024, 8, 16,
		[]byte{
			0xab, 0x41, 0x2d, 0xe0, 0x56, 0x42, 0xe4, 0xb5, 0xf2,
			0x91, 0x86, 0xd8, 0xaf, 0x8, 0x62, 0x92, 0x44, 0xb5,
			0xd3, 0xdf, 0xe2, 0xf8, 0x32, 0x30, 0x2b, 0xc9, 0xec,
			0x8b, 0x9c, 0xb3, 0x82, 0x3b, 0x77, 0xd8, 0x54, 0x3e,
			0xbb, 0x54, 0x53, 0xfd, 0xec, 0x88, 0x96, 0x93, 0xa7,
			0x8c, 0x76, 0xc8, 0xc5, 0x46, 0xa9, 0xfe, 0xfd, 0x6c,
			0xeb, 0x92, 0x2b, 0xdf, 0x1, 0x64, 0xa0, 0x19, 0x6a,
			0x79,
		},
	},
	{
		"pleaseletmein", "SodiumChloride",
		16384, 8, 1,
		[]byte{
			0xf8, 0xa4, 0x6f, 0x17, 0xed, 0x33, 0xb1, 0x82, 0x5f,
			0x2b, 0x56, 0x47, 0x29, 0x2f, 0x20, 0xc0, 0x3a, 0xaa,
			0xdb, 0x15, 0xdf, 0x5d, 0xf8, 0x37, 0x9f, 0xe7, 0x21,
			0xb2, 0x13, 0xfc, 0xf6, 0xb7, 0x88, 0xb7, 0xe8, 0xda,
			0x21, 0x7c, 0xf5, 0x77, 0xae, 0xd8, 0xc9, 0x4e, 0xbf,
			0xec, 0x48, 0x3f, 0x81, 0xb3, 0x3b, 0x9a, 0x2e, 0x7f,
			0x14, 0x2a, 0xb4, 0x4d, 0x81, 0x7f, 0x9e, 0xf0, 0x52,
			0xd2,
		},
	},

	// Disabled: needs 1 GiB RAM and takes too long for a simple test.
	{
		"pleaseletmein", "SodiumChloride",
		1048576, 8, 1,
		[]byte{
			0xee, 0xef, 0xad, 0x8b, 0xa9, 0xd5, 0x47, 0x13, 0x9d,
			0x58, 0xe9, 0xae, 0x8, 0xa3, 0xf7, 0x79, 0x1b, 0x3c,
			0xba, 0x62, 0x75, 0x7, 0x89, 0x64, 0x24, 0xaa, 0x2d,
			0xb4, 0xa5, 0xa5, 0x8e, 0xdd, 0xb6, 0xa, 0x41, 0x31,
			0x59, 0x1f, 0x40, 0x1, 0xe6, 0x9, 0x63, 0x19, 0xc6,
			0x77, 0xf3, 0x30, 0x74, 0x26, 0xb8, 0x5d, 0x7e, 0x76,
			0x2d, 0x61, 0xe6, 0x3a, 0xbc, 0x8, 0xb5, 0x9e, 0x64,
			0xc,
		},
	},
}

var bad = []testVector{
	{"p", "s", 0, 1, 1, nil},                    // N == 0
	{"p", "s", 1, 1, 1, nil},                    // N == 1
	{"p", "s", 7, 8, 1, nil},                    // N is not power of 2
	{"p", "s", 16, maxInt / 2, maxInt / 2, nil}, // p * r too large
}

func TestKey(t *testing.T) {
	for i, v := range good {
		k, err := Key([]byte(v.password), []byte(v.salt), v.N, v.r, v.p, len(v.output), uint(0x30))
		if err != nil {
			t.Errorf("%d: got unexpected error: %s", i, err)
		}
		if !bytes.Equal(k, v.output) {
			t.Errorf("%d: expected %x, got %x", i, v.output, k)
		}
	}
	for i, v := range bad {
		_, err := Key([]byte(v.password), []byte(v.salt), v.N, v.r, v.p, 32, uint(0x30))
		if err == nil {
			t.Errorf("%d: expected error, got nil", i)
		}
	}
}

var sink []byte

func BenchmarkKey(b *testing.B) {
	for i := 0; i < b.N; i++ {
		sink, _ = Key([]byte("password"), []byte("salt"), 1<<15, 8, 1, 64, uint(0x30))
	}
}