gaspersic/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Encryption async api (#17603)

Browse Source 
* swarm/storage/encryption: async segmentwise encryption/decryption

* swarm/storage: adapt hasherstore to encryption API change

* swarm/api: adapt RefEncryption for AC to new Encryption API

* swarm/storage/encryption: address review comments
This commit is contained in:
Viktor Trón
2018-09-11 11:39:02 +02:00
committed by Balint Gabor
parent 10bac36647
commit 6dd87483d4
4 changed files with 177 additions and 132 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
swarm/api/encrypt.go
View File

@ -25,27 +25,27 @@ import (
)
type RefEncryption struct {
spanEncryption encryption.Encryption
dataEncryption encryption.Encryption
span []byte
refSize int
span []byte
}
func NewRefEncryption(refSize int) *RefEncryption {
span := make([]byte, 8)
binary.LittleEndian.PutUint64(span, uint64(refSize))
return &RefEncryption{
spanEncryption: encryption.New(0, uint32(refSize/32), sha3.NewKeccak256),
dataEncryption: encryption.New(refSize, 0, sha3.NewKeccak256),
span: span,
refSize: refSize,
span: span,
}
}
func (re *RefEncryption) Encrypt(ref []byte, key []byte) ([]byte, error) {
encryptedSpan, err := re.spanEncryption.Encrypt(re.span, key)
spanEncryption := encryption.New(key, 0, uint32(re.refSize/32), sha3.NewKeccak256)
encryptedSpan, err := spanEncryption.Encrypt(re.span)
if err != nil {
return nil, err
}
encryptedData, err := re.dataEncryption.Encrypt(ref, key)
dataEncryption := encryption.New(key, re.refSize, 0, sha3.NewKeccak256)
encryptedData, err := dataEncryption.Encrypt(ref)
if err != nil {
return nil, err
}
@ -57,7 +57,8 @@ func (re *RefEncryption) Encrypt(ref []byte, key []byte) ([]byte, error) {
}
func (re *RefEncryption) Decrypt(ref []byte, key []byte) ([]byte, error) {
decryptedSpan, err := re.spanEncryption.Decrypt(ref[:8], key)
spanEncryption := encryption.New(key, 0, uint32(re.refSize/32), sha3.NewKeccak256)
decryptedSpan, err := spanEncryption.Decrypt(ref[:8])
if err != nil {
return nil, err
}
@ -67,7 +68,8 @@ func (re *RefEncryption) Decrypt(ref []byte, key []byte) ([]byte, error) {
return nil, errors.New("invalid span in encrypted reference")
}
decryptedRef, err := re.dataEncryption.Decrypt(ref[8:], key)
dataEncryption := encryption.New(key, re.refSize, 0, sha3.NewKeccak256)
decryptedRef, err := dataEncryption.Decrypt(ref[8:])
if err != nil {
return nil, err
}