crypto

Documentation

Index

• func Decrypt(secretKey []byte, additional []byte, ciphertext []byte) ([]byte, error)
• func DeriveSharedKey(priv *btcec.PrivateKey, pub *btcec.PublicKey, kdf func([]byte) []byte) []byte
• func Encrypt(secretKey, additional, data []byte) ([]byte, error)
• func KDFSHA256(in []byte) []byte

Functions

func Decrypt

func Decrypt(secretKey []byte, additional []byte, ciphertext []byte) ([]byte, error)

Decrypt combines secretKey and secondKey to decrypt AES256-GCM.

func DeriveSharedKey

func DeriveSharedKey(priv *btcec.PrivateKey, pub *btcec.PublicKey, kdf func([]byte) []byte) []byte

DeriveSharedKey derives a shared key (which can be used for asymmetric encryption) using a specified KDF (Key Derivation Function) from a shared secret generated by Diffie-Hellman key exchange (ECDH).

func Encrypt

func Encrypt(secretKey, additional, data []byte) ([]byte, error)

Encrypt combines secretKey and secondKey to encrypt with AES256-GCM method.

func KDFSHA256

func KDFSHA256(in []byte) []byte

KDFSHA256 is a key derivation function which uses SHA256.