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Force aead key sizes as 32 bytes due to chacha20-poly1305

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This commit is contained in:
Qian Wang 2019-08-07 00:15:55 +01:00
parent 581c2332d1
commit acb999ee64
1 changed files with 2 additions and 3 deletions
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5
internal/multiplex/obfs.go
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@ -117,7 +117,6 @@ func GenerateObfs(encryptionMethod byte, sessionKey []byte) (obfuscator *Obfusca
err = errors.New("sessionKey size must be 32 bytes") err = errors.New("sessionKey size must be 32 bytes")
} }
blockKey := sessionKey[:16]
var salsaKey [32]byte var salsaKey [32]byte
copy(salsaKey[:], sessionKey) copy(salsaKey[:], sessionKey)
@ -127,7 +126,7 @@ func GenerateObfs(encryptionMethod byte, sessionKey []byte) (obfuscator *Obfusca
payloadCipher = nil payloadCipher = nil
case 0x01: case 0x01:
var c cipher.Block var c cipher.Block
c, err = aes.NewCipher(blockKey) c, err = aes.NewCipher(sessionKey)
if err != nil { if err != nil {
return return
} }
@ -136,7 +135,7 @@ func GenerateObfs(encryptionMethod byte, sessionKey []byte) (obfuscator *Obfusca
return return
} }
case 0x02: case 0x02:
payloadCipher, err = chacha20poly1305.New(blockKey) payloadCipher, err = chacha20poly1305.New(sessionKey)
if err != nil { if err != nil {
return return
} }