crypt

func GetCryptReader ¶

func GetCryptReader(key *memguard.LockedBuffer, fname string) (r io.Reader, s int, err error)

GetCryptReader returns a new io.Reader that reads and encrypts the specified filename

func GetCryptWriter ¶

func GetCryptWriter(key *memguard.LockedBuffer, dir, fname string) (w io.WriteCloser, err error)

GetCryptWriter returns a new io.WriteCloser that will decrypt data written to it. Plaintext will be saved under the specified directory with chosen filename.

This writer has 2 bytes already written to it in order to initialize the underlying AES instance.

func GetGCM ¶

func GetGCM(key *memguard.LockedBuffer, size int) (gcm cipher.AEAD, err error)

GetGCM returns a new AES GCM cipher with optional custom nonce size