go.crypto/scrypt: add package
R=golang-dev, agl, r
CC=golang-dev
https://golang.org/cl/6535043
diff --git a/scrypt/scrypt_test.go b/scrypt/scrypt_test.go
new file mode 100644
index 0000000..60b73ec
--- /dev/null
+++ b/scrypt/scrypt_test.go
@@ -0,0 +1,112 @@
+// 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{
+ {
+ "",
+ "",
+ 16, 1, 1,
+ []byte{
+ 0x77, 0xd6, 0x57, 0x62, 0x38, 0x65, 0x7b, 0x20, 0x3b,
+ 0x19, 0xca, 0x42, 0xc1, 0x8a, 0x04, 0x97, 0xf1, 0x6b,
+ 0x48, 0x44, 0xe3, 0x07, 0x4a, 0xe8, 0xdf, 0xdf, 0xfa,
+ 0x3f, 0xed, 0xe2, 0x14, 0x42, 0xfc, 0xd0, 0x06, 0x9d,
+ 0xed, 0x09, 0x48, 0xf8, 0x32, 0x6a, 0x75, 0x3a, 0x0f,
+ 0xc8, 0x1f, 0x17, 0xe8, 0xd3, 0xe0, 0xfb, 0x2e, 0x0d,
+ 0x36, 0x28, 0xcf, 0x35, 0xe2, 0x0c, 0x38, 0xd1, 0x89,
+ 0x06,
+ },
+ },
+ {
+ "password",
+ "NaCl",
+ 1024, 8, 16,
+ []byte{
+ 0xfd, 0xba, 0xbe, 0x1c, 0x9d, 0x34, 0x72, 0x00, 0x78,
+ 0x56, 0xe7, 0x19, 0x0d, 0x01, 0xe9, 0xfe, 0x7c, 0x6a,
+ 0xd7, 0xcb, 0xc8, 0x23, 0x78, 0x30, 0xe7, 0x73, 0x76,
+ 0x63, 0x4b, 0x37, 0x31, 0x62, 0x2e, 0xaf, 0x30, 0xd9,
+ 0x2e, 0x22, 0xa3, 0x88, 0x6f, 0xf1, 0x09, 0x27, 0x9d,
+ 0x98, 0x30, 0xda, 0xc7, 0x27, 0xaf, 0xb9, 0x4a, 0x83,
+ 0xee, 0x6d, 0x83, 0x60, 0xcb, 0xdf, 0xa2, 0xcc, 0x06,
+ 0x40,
+ },
+ },
+ {
+ "pleaseletmein", "SodiumChloride",
+ 16384, 8, 1,
+ []byte{
+ 0x70, 0x23, 0xbd, 0xcb, 0x3a, 0xfd, 0x73, 0x48, 0x46,
+ 0x1c, 0x06, 0xcd, 0x81, 0xfd, 0x38, 0xeb, 0xfd, 0xa8,
+ 0xfb, 0xba, 0x90, 0x4f, 0x8e, 0x3e, 0xa9, 0xb5, 0x43,
+ 0xf6, 0x54, 0x5d, 0xa1, 0xf2, 0xd5, 0x43, 0x29, 0x55,
+ 0x61, 0x3f, 0x0f, 0xcf, 0x62, 0xd4, 0x97, 0x05, 0x24,
+ 0x2a, 0x9a, 0xf9, 0xe6, 0x1e, 0x85, 0xdc, 0x0d, 0x65,
+ 0x1e, 0x40, 0xdf, 0xcf, 0x01, 0x7b, 0x45, 0x57, 0x58,
+ 0x87,
+ },
+ },
+ /*
+ // Disabled: needs 1 GiB RAM and takes too long for a simple test.
+ {
+ "pleaseletmein", "SodiumChloride",
+ 1048576, 8, 1,
+ []byte{
+ 0x21, 0x01, 0xcb, 0x9b, 0x6a, 0x51, 0x1a, 0xae, 0xad,
+ 0xdb, 0xbe, 0x09, 0xcf, 0x70, 0xf8, 0x81, 0xec, 0x56,
+ 0x8d, 0x57, 0x4a, 0x2f, 0xfd, 0x4d, 0xab, 0xe5, 0xee,
+ 0x98, 0x20, 0xad, 0xaa, 0x47, 0x8e, 0x56, 0xfd, 0x8f,
+ 0x4b, 0xa5, 0xd0, 0x9f, 0xfa, 0x1c, 0x6d, 0x92, 0x7c,
+ 0x40, 0xf4, 0xc3, 0x37, 0x30, 0x40, 0x49, 0xe8, 0xa9,
+ 0x52, 0xfb, 0xcb, 0xf4, 0x5c, 0x6f, 0xa7, 0x7a, 0x41,
+ 0xa4,
+ },
+ },
+ */
+}
+
+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))
+ 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)
+ if err == nil {
+ t.Errorf("%d: expected error, got nil", i)
+ }
+ }
+}
+
+func BenchmarkKey(b *testing.B) {
+ for i := 0; i < b.N; i++ {
+ Key([]byte("password"), []byte("salt"), 16384, 8, 1, 64)
+ }
+}
