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pull/2034/head
v2ray 2016-07-26 21:21:22 +02:00
parent 347ae8fd75
commit 0040881b84
No known key found for this signature in database
GPG Key ID: 7251FFA14BB18169
2 changed files with 6 additions and 0 deletions
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4
common/crypto/aes.go
View File

@ -5,11 +5,15 @@ import (
"crypto/cipher" "crypto/cipher"
) )
// NewAesDecryptionStream creates a new AES encryption stream based on given key and IV.
// Caller must ensure the length of key and IV is either 16, 24 or 32 bytes.
func NewAesDecryptionStream(key []byte, iv []byte) cipher.Stream { func NewAesDecryptionStream(key []byte, iv []byte) cipher.Stream {
aesBlock, _ := aes.NewCipher(key) aesBlock, _ := aes.NewCipher(key)
return cipher.NewCFBDecrypter(aesBlock, iv) return cipher.NewCFBDecrypter(aesBlock, iv)
} }
// NewAesEncryptionStream creates a new AES description stream based on given key and IV.
// Caller must ensure the length of key and IV is either 16, 24 or 32 bytes.
func NewAesEncryptionStream(key []byte, iv []byte) cipher.Stream { func NewAesEncryptionStream(key []byte, iv []byte) cipher.Stream {
aesBlock, _ := aes.NewCipher(key) aesBlock, _ := aes.NewCipher(key)
return cipher.NewCFBEncrypter(aesBlock, iv) return cipher.NewCFBEncrypter(aesBlock, iv)

2
common/crypto/chacha20.go
View File

@ -6,6 +6,8 @@ import (
"github.com/v2ray/v2ray-core/common/crypto/internal" "github.com/v2ray/v2ray-core/common/crypto/internal"
) )
// NewChaCha20Stream creates a new Chacha20 encryption/descryption stream based on give key and IV.
// Caller must ensure the length of key is 32 bytes, and length of IV is either 8 or 12 bytes.
func NewChaCha20Stream(key []byte, iv []byte) cipher.Stream { func NewChaCha20Stream(key []byte, iv []byte) cipher.Stream {
return internal.NewChaCha20Stream(key, iv, 20) return internal.NewChaCha20Stream(key, iv, 20)
} }