util

Documentation

Index

• func EncryptChunk(chunkIdx uint64, reqSeqNo uint64, sessionKey, in []byte) ([]byte, error)
• func EncryptCipherBlock(plaintext []byte, key []byte, iv []byte, counter uint32) ([]byte, error)
• func KeyedPRF(prfInput []byte, requestSeqNo uint32, key []byte) ([]byte, error)
• func Uint32ToLE(x uint32) []byte
• func Uint64ToLE(x uint64) []byte

Functions

func EncryptChunk

func EncryptChunk(chunkIdx uint64, reqSeqNo uint64, sessionKey, in []byte) ([]byte, error)

Also decrypts chunk, since we're using AES in the CTR mode.

func EncryptCipherBlock

func EncryptCipherBlock(plaintext []byte, key []byte, iv []byte, counter uint32) ([]byte, error)

EncryptCipherBlock encrypts a single plaintext block using AES in the CTR mode. Unusually, it lets the caller specify the counter's value; the counter is added to the IV.

func KeyedPRF

func KeyedPRF(prfInput []byte, requestSeqNo uint32, key []byte) ([]byte, error)

XXX: Document me!

func Uint32ToLE

func Uint32ToLE(x uint32) []byte

func Uint64ToLE

func Uint64ToLE(x uint64) []byte