ciph

Documentation

Overview

Package ciph manages encryption ciphers and encrypting blobs of data. Keys are generated using ECDH from a public and private secp256k1 combined, as well as directly from a 32 byte secret in the form of a static array as used in most cryptographic hash function implementations in Go.

Index

• func BlockFromHash(h sha256.Hash) (block cipher.Block)
• func Encipher(blk cipher.Block, n nonce.IV, b []byte)
• func GetBlock(from *crypto.Prv, to *crypto.Pub, note string) (block cipher.Block)

Functions

func BlockFromHash

func BlockFromHash(h sha256.Hash) (block cipher.Block)

BlockFromHash creates an AES block cipher from an sha256.Hash.

func Encipher

func Encipher(blk cipher.Block, n nonce.IV, b []byte)

Encipher XORs the data with the block stream. This encrypts unencrypted data and decrypts encrypted data. If the cipher.Block is nil, it panics (this should never happen).

func GetBlock

func GetBlock(from *crypto.Prv, to *crypto.Pub, note string) (block cipher.Block)

GetBlock returns a block cipher with a secret generated from the provided keys using ECDH.