frostfs-s3-gw/api/layer/encryption/encryption_test.go

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package encryption
import (
"encoding/hex"
"strconv"
"testing"
"github.com/stretchr/testify/require"
)
const (
aes256Key = "1234567890qwertyuiopasdfghjklzxc"
)
func getAES256Key() []byte {
key := make([]byte, 32)
copy(key[:], aes256Key)
return key
}
func TestHMAC(t *testing.T) {
encParam, err := NewParams(getAES256Key())
require.NoError(t, err)
hmacKey, hmacSalt, err := encParam.HMAC()
require.NoError(t, err)
encInfo := ObjectEncryption{
Enabled: true,
Algorithm: "",
HMACKey: hex.EncodeToString(hmacKey),
HMACSalt: hex.EncodeToString(hmacSalt),
}
err = encParam.MatchObjectEncryption(encInfo)
require.NoError(t, err)
}
const (
objSize = 30 * 1024 * 1024
partNum = 6
partSize = 5 * 1024 * 1024
encObjSize = 31472640 // objSize + enc headers
encPartSize = 5245440 // partSize + enc headers
)
func getDecrypter(t *testing.T) *Decrypter {
parts := make([]encryptedPart, partNum)
for i := range parts {
parts[i] = encryptedPart{
size: partSize,
encryptedSize: encPartSize,
}
}
params, err := NewParams(getAES256Key())
require.NoError(t, err)
return &Decrypter{
parts: parts,
encryption: *params,
}
}
func TestDecrypterInitParams(t *testing.T) {
decReader := getDecrypter(t)
for i, tc := range []struct {
rng *Range
expSkipLen, expLn, expOff, expSeqNumber uint64
expDecLen, expDataRemain, expEncPartRange uint64
}{
{
rng: &Range{End: objSize - 1},
expSkipLen: 0,
expLn: encObjSize,
expOff: 0,
expSeqNumber: 0,
expDecLen: objSize,
expDataRemain: partSize,
expEncPartRange: encPartSize,
},
{
rng: &Range{End: 999999},
expSkipLen: 0,
expLn: 1049088,
expOff: 0,
expSeqNumber: 0,
expDecLen: 1000000,
expDataRemain: 1000000,
expEncPartRange: 1049088,
},
{
rng: &Range{Start: 1000000, End: 1999999},
expSkipLen: 16960,
expLn: 1049088,
expOff: 983520,
expSeqNumber: 15,
expDecLen: 1000000,
expDataRemain: 1000000,
expEncPartRange: 1049088,
},
} {
t.Run(strconv.Itoa(i), func(t *testing.T) {
decReader.rangeParam = tc.rng
decReader.initRangeParams()
require.Equal(t, tc.expSkipLen, decReader.skipLen)
require.Equal(t, tc.expDecLen, decReader.decLen)
require.Equal(t, tc.expLn, decReader.length)
require.Equal(t, tc.expOff, decReader.offset)
require.Equal(t, tc.expDataRemain, decReader.partDataRemain)
require.Equal(t, tc.expEncPartRange, decReader.encPartRangeLen)
require.Equal(t, tc.expSeqNumber, decReader.seqNumber)
})
}
}