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196 lines (176 loc) · 6.58 KB
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// Minio Cloud Storage, (C) 2015, 2016, 2017, 2018 Minio, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package crypto
import (
"bytes"
"crypto/rand"
"encoding/hex"
"io"
"testing"
"github.com/minio/minio/cmd/logger"
)
var shortRandom = func(limit int64) io.Reader { return io.LimitReader(rand.Reader, limit) }
func recoverTest(i int, shouldPass bool, t *testing.T) {
if err := recover(); err == nil && !shouldPass {
t.Errorf("Test %d should fail but passed successfully", i)
} else if err != nil && shouldPass {
t.Errorf("Test %d should pass but failed: %v", i, err)
}
}
var generateKeyTests = []struct {
ExtKey [32]byte
Random io.Reader
ShouldPass bool
}{
{ExtKey: [32]byte{}, Random: nil, ShouldPass: true}, // 0
{ExtKey: [32]byte{}, Random: rand.Reader, ShouldPass: true}, // 1
{ExtKey: [32]byte{}, Random: shortRandom(32), ShouldPass: true}, // 2
{ExtKey: [32]byte{}, Random: shortRandom(31), ShouldPass: false}, // 3
}
func TestGenerateKey(t *testing.T) {
defer func(disableLog bool) { logger.Disable = disableLog }(logger.Disable)
logger.Disable = true
for i, test := range generateKeyTests {
i, test := i, test
func() {
defer recoverTest(i, test.ShouldPass, t)
key := GenerateKey(test.ExtKey, test.Random)
if [32]byte(key) == [32]byte{} {
t.Errorf("Test %d: generated key is zero key", i) // check that we generate random and unique key
}
}()
}
}
var generateIVTests = []struct {
Random io.Reader
ShouldPass bool
}{
{Random: nil, ShouldPass: true}, // 0
{Random: rand.Reader, ShouldPass: true}, // 1
{Random: shortRandom(32), ShouldPass: true}, // 2
{Random: shortRandom(31), ShouldPass: false}, // 3
}
func TestGenerateIV(t *testing.T) {
defer func(disableLog bool) { logger.Disable = disableLog }(logger.Disable)
logger.Disable = true
for i, test := range generateIVTests {
i, test := i, test
func() {
defer recoverTest(i, test.ShouldPass, t)
iv := GenerateIV(test.Random)
if iv == [32]byte{} {
t.Errorf("Test %d: generated IV is zero IV", i) // check that we generate random and unique IV
}
}()
}
}
var sealUnsealKeyTests = []struct {
SealExtKey, SealIV [32]byte
SealDomain, SealBucket, SealObject string
UnsealExtKey [32]byte
UnsealDomain, UnsealBucket, UnsealObject string
ShouldPass bool
}{
{
SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-C", SealBucket: "bucket", SealObject: "object",
UnsealExtKey: [32]byte{}, UnsealDomain: "SSE-C", UnsealBucket: "bucket", UnsealObject: "object",
ShouldPass: true,
}, // 0
{
SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-C", SealBucket: "bucket", SealObject: "object",
UnsealExtKey: [32]byte{1}, UnsealDomain: "SSE-C", UnsealBucket: "bucket", UnsealObject: "object", // different ext-key
ShouldPass: false,
}, // 1
{
SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-S3", SealBucket: "bucket", SealObject: "object",
UnsealExtKey: [32]byte{}, UnsealDomain: "SSE-C", UnsealBucket: "bucket", UnsealObject: "object", // different domain
ShouldPass: false,
}, // 2
{
SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-C", SealBucket: "bucket", SealObject: "object",
UnsealExtKey: [32]byte{}, UnsealDomain: "SSE-C", UnsealBucket: "Bucket", UnsealObject: "object", // different bucket
ShouldPass: false,
}, // 3
{
SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-C", SealBucket: "bucket", SealObject: "object",
UnsealExtKey: [32]byte{}, UnsealDomain: "SSE-C", UnsealBucket: "bucket", UnsealObject: "Object", // different object
ShouldPass: false,
}, // 4
}
func TestSealUnsealKey(t *testing.T) {
for i, test := range sealUnsealKeyTests {
key := GenerateKey(test.SealExtKey, rand.Reader)
sealedKey := key.Seal(test.SealExtKey, test.SealIV, test.SealDomain, test.SealBucket, test.SealObject)
if err := key.Unseal(test.UnsealExtKey, sealedKey, test.UnsealDomain, test.UnsealBucket, test.UnsealObject); err == nil && !test.ShouldPass {
t.Errorf("Test %d should fail but passed successfully", i)
} else if err != nil && test.ShouldPass {
t.Errorf("Test %d should pass put failed: %v", i, err)
}
}
// Test legacy InsecureSealAlgorithm
var extKey, iv [32]byte
key := GenerateKey(extKey, rand.Reader)
sealedKey := key.Seal(extKey, iv, "SSE-S3", "bucket", "object")
sealedKey.Algorithm = InsecureSealAlgorithm
if err := key.Unseal(extKey, sealedKey, "SSE-S3", "bucket", "object"); err == nil {
t.Errorf("'%s' test succeeded but it should fail because the legacy algorithm was used", sealedKey.Algorithm)
}
}
var derivePartKeyTest = []struct {
PartID uint32
PartKey string
}{
{PartID: 0, PartKey: "aa7855e13839dd767cd5da7c1ff5036540c9264b7a803029315e55375287b4af"},
{PartID: 1, PartKey: "a3e7181c6eed030fd52f79537c56c4d07da92e56d374ff1dd2043350785b37d8"},
{PartID: 10000, PartKey: "f86e65c396ed52d204ee44bd1a0bbd86eb8b01b7354e67a3b3ae0e34dd5bd115"},
}
func TestDerivePartKey(t *testing.T) {
var key ObjectKey
for i, test := range derivePartKeyTest {
expectedPartKey, err := hex.DecodeString(test.PartKey)
if err != nil {
t.Fatalf("Test %d failed to decode expected part-key: %v", i, err)
}
partKey := key.DerivePartKey(test.PartID)
if !bytes.Equal(partKey[:], expectedPartKey[:]) {
t.Errorf("Test %d derives wrong part-key: got '%s' want: '%s'", i, hex.EncodeToString(partKey[:]), test.PartKey)
}
}
}
var sealUnsealETagTests = []string{
"",
"90682b8e8cc7609c",
"90682b8e8cc7609c4671e1d64c73fc30",
"90682b8e8cc7609c4671e1d64c73fc307fb3104f",
}
func TestSealETag(t *testing.T) {
var key ObjectKey
for i := range key {
key[i] = byte(i)
}
for i, etag := range sealUnsealETagTests {
tag, err := hex.DecodeString(etag)
if err != nil {
t.Errorf("Test %d: failed to decode etag: %s", i, err)
}
sealedETag := key.SealETag(tag)
unsealedETag, err := key.UnsealETag(sealedETag)
if err != nil {
t.Errorf("Test %d: failed to decrypt etag: %s", i, err)
}
if !bytes.Equal(unsealedETag, tag) {
t.Errorf("Test %d: unsealed etag does not match: got %s - want %s", i, hex.EncodeToString(unsealedETag), etag)
}
}
}