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minimize allocations in logger and tunnel code (#1323)

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* logs alloc

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* fix allocs

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* fix allocs

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* tunnel allocs

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* try to fix tunnel

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* cache cipher for send

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* more logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* more logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* more logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* more logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* more logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* more logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* more logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
Василий Толстов
2020-03-11 20:55:39 +03:00
committed by GitHub
parent 4125ae8d53
commit 7b385bf163
47 changed files with 917 additions and 382 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
tunnel/crypto.go
View File

@@ -24,20 +24,8 @@ func hash(key []byte) []byte {
}
// Encrypt encrypts data and returns the encrypted data
func Encrypt(data []byte, key []byte) ([]byte, error) {
// generate a new AES cipher using our 32 byte key
c, err := aes.NewCipher(hash(key))
if err != nil {
return nil, err
}
// gcm or Galois/Counter Mode, is a mode of operation
// for symmetric key cryptographic block ciphers
// - https://en.wikipedia.org/wiki/Galois/Counter_Mode
gcm, err := cipher.NewGCM(c)
if err != nil {
return nil, err
}
func Encrypt(gcm cipher.AEAD, data []byte) ([]byte, error) {
var err error
// get new byte array the size of the nonce from pool
// NOTE: we might use smaller nonce size in the future
@@ -54,19 +42,29 @@ func Encrypt(data []byte, key []byte) ([]byte, error) {
}
// Decrypt decrypts the payload and returns the decrypted data
func Decrypt(data []byte, key []byte) ([]byte, error) {
// generate AES cipher for decrypting the message
func newCipher(key []byte) (cipher.AEAD, error) {
var err error
// generate a new AES cipher using our 32 byte key for decrypting the message
c, err := aes.NewCipher(hash(key))
if err != nil {
return nil, err
}
// we use GCM to encrypt the payload
// gcm or Galois/Counter Mode, is a mode of operation
// for symmetric key cryptographic block ciphers
// - https://en.wikipedia.org/wiki/Galois/Counter_Mode
gcm, err := cipher.NewGCM(c)
if err != nil {
return nil, err
}
return gcm, nil
}
func Decrypt(gcm cipher.AEAD, data []byte) ([]byte, error) {
var err error
nonceSize := gcm.NonceSize()
if len(data) < nonceSize {