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200 lines
6.7 KiB
Go
200 lines
6.7 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package crypto
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import (
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"bytes"
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"crypto/rand"
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"encoding/hex"
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"io"
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"testing"
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"github.com/minio/minio/cmd/logger"
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)
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var shortRandom = func(limit int64) io.Reader { return io.LimitReader(rand.Reader, limit) }
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func recoverTest(i int, shouldPass bool, t *testing.T) {
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if err := recover(); err == nil && !shouldPass {
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t.Errorf("Test %d should fail but passed successfully", i)
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} else if err != nil && shouldPass {
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t.Errorf("Test %d should pass but failed: %v", i, err)
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}
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}
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var generateKeyTests = []struct {
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ExtKey [32]byte
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Random io.Reader
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ShouldPass bool
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}{
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{ExtKey: [32]byte{}, Random: nil, ShouldPass: true}, // 0
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{ExtKey: [32]byte{}, Random: rand.Reader, ShouldPass: true}, // 1
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{ExtKey: [32]byte{}, Random: shortRandom(32), ShouldPass: true}, // 2
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{ExtKey: [32]byte{}, Random: shortRandom(31), ShouldPass: false}, // 3
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}
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func TestGenerateKey(t *testing.T) {
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defer func(disableLog bool) { logger.Disable = disableLog }(logger.Disable)
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logger.Disable = true
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for i, test := range generateKeyTests {
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i, test := i, test
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func() {
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defer recoverTest(i, test.ShouldPass, t)
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key := GenerateKey(test.ExtKey[:], test.Random)
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if [32]byte(key) == [32]byte{} {
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t.Errorf("Test %d: generated key is zero key", i) // check that we generate random and unique key
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}
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}()
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}
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}
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var generateIVTests = []struct {
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Random io.Reader
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ShouldPass bool
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}{
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{Random: nil, ShouldPass: true}, // 0
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{Random: rand.Reader, ShouldPass: true}, // 1
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{Random: shortRandom(32), ShouldPass: true}, // 2
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{Random: shortRandom(31), ShouldPass: false}, // 3
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}
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func TestGenerateIV(t *testing.T) {
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defer func(disableLog bool) { logger.Disable = disableLog }(logger.Disable)
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logger.Disable = true
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for i, test := range generateIVTests {
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i, test := i, test
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func() {
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defer recoverTest(i, test.ShouldPass, t)
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iv := GenerateIV(test.Random)
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if iv == [32]byte{} {
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t.Errorf("Test %d: generated IV is zero IV", i) // check that we generate random and unique IV
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}
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}()
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}
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}
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var sealUnsealKeyTests = []struct {
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SealExtKey, SealIV [32]byte
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SealDomain, SealBucket, SealObject string
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UnsealExtKey [32]byte
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UnsealDomain, UnsealBucket, UnsealObject string
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ShouldPass bool
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}{
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{
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SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-C", SealBucket: "bucket", SealObject: "object",
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UnsealExtKey: [32]byte{}, UnsealDomain: "SSE-C", UnsealBucket: "bucket", UnsealObject: "object",
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ShouldPass: true,
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}, // 0
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{
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SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-C", SealBucket: "bucket", SealObject: "object",
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UnsealExtKey: [32]byte{1}, UnsealDomain: "SSE-C", UnsealBucket: "bucket", UnsealObject: "object", // different ext-key
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ShouldPass: false,
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}, // 1
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{
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SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-S3", SealBucket: "bucket", SealObject: "object",
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UnsealExtKey: [32]byte{}, UnsealDomain: "SSE-C", UnsealBucket: "bucket", UnsealObject: "object", // different domain
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ShouldPass: false,
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}, // 2
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{
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SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-C", SealBucket: "bucket", SealObject: "object",
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UnsealExtKey: [32]byte{}, UnsealDomain: "SSE-C", UnsealBucket: "Bucket", UnsealObject: "object", // different bucket
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ShouldPass: false,
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}, // 3
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{
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SealExtKey: [32]byte{}, SealIV: [32]byte{}, SealDomain: "SSE-C", SealBucket: "bucket", SealObject: "object",
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UnsealExtKey: [32]byte{}, UnsealDomain: "SSE-C", UnsealBucket: "bucket", UnsealObject: "Object", // different object
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ShouldPass: false,
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}, // 4
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}
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func TestSealUnsealKey(t *testing.T) {
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for i, test := range sealUnsealKeyTests {
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key := GenerateKey(test.SealExtKey[:], rand.Reader)
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sealedKey := key.Seal(test.SealExtKey[:], test.SealIV, test.SealDomain, test.SealBucket, test.SealObject)
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if err := key.Unseal(test.UnsealExtKey[:], sealedKey, test.UnsealDomain, test.UnsealBucket, test.UnsealObject); err == nil && !test.ShouldPass {
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t.Errorf("Test %d should fail but passed successfully", i)
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} else if err != nil && test.ShouldPass {
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t.Errorf("Test %d should pass put failed: %v", i, err)
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}
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}
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// Test legacy InsecureSealAlgorithm
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var extKey, iv [32]byte
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key := GenerateKey(extKey[:], rand.Reader)
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sealedKey := key.Seal(extKey[:], iv, "SSE-S3", "bucket", "object")
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sealedKey.Algorithm = InsecureSealAlgorithm
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if err := key.Unseal(extKey[:], sealedKey, "SSE-S3", "bucket", "object"); err == nil {
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t.Errorf("'%s' test succeeded but it should fail because the legacy algorithm was used", sealedKey.Algorithm)
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}
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}
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var derivePartKeyTest = []struct {
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PartID uint32
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PartKey string
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}{
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{PartID: 0, PartKey: "aa7855e13839dd767cd5da7c1ff5036540c9264b7a803029315e55375287b4af"},
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{PartID: 1, PartKey: "a3e7181c6eed030fd52f79537c56c4d07da92e56d374ff1dd2043350785b37d8"},
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{PartID: 10000, PartKey: "f86e65c396ed52d204ee44bd1a0bbd86eb8b01b7354e67a3b3ae0e34dd5bd115"},
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}
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func TestDerivePartKey(t *testing.T) {
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var key ObjectKey
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for i, test := range derivePartKeyTest {
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expectedPartKey, err := hex.DecodeString(test.PartKey)
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if err != nil {
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t.Fatalf("Test %d failed to decode expected part-key: %v", i, err)
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}
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partKey := key.DerivePartKey(test.PartID)
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if !bytes.Equal(partKey[:], expectedPartKey[:]) {
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t.Errorf("Test %d derives wrong part-key: got '%s' want: '%s'", i, hex.EncodeToString(partKey[:]), test.PartKey)
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}
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}
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}
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var sealUnsealETagTests = []string{
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"",
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"90682b8e8cc7609c",
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"90682b8e8cc7609c4671e1d64c73fc30",
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"90682b8e8cc7609c4671e1d64c73fc307fb3104f",
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}
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func TestSealETag(t *testing.T) {
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var key ObjectKey
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for i := range key {
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key[i] = byte(i)
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}
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for i, etag := range sealUnsealETagTests {
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tag, err := hex.DecodeString(etag)
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if err != nil {
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t.Errorf("Test %d: failed to decode etag: %s", i, err)
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}
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sealedETag := key.SealETag(tag)
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unsealedETag, err := key.UnsealETag(sealedETag)
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if err != nil {
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t.Errorf("Test %d: failed to decrypt etag: %s", i, err)
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}
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if !bytes.Equal(unsealedETag, tag) {
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t.Errorf("Test %d: unsealed etag does not match: got %s - want %s", i, hex.EncodeToString(unsealedETag), etag)
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}
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}
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}
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