crypto

type AESGCMClient struct {
	// contains filtered or unexported fields
}

type AESGCMSettings struct {
	KeyLen        int            `json:"keylen,omitempty" toml:"keylen"`
	KeyDerivation string         `json:"keyderivation,omitempty" toml:"keyderivation"`
	PBKDF2        *pbkdf2.PBKDF2 `json:"pbkdf2,omitempty" toml:"pbkdf2"`
	Scrypt        *scrypt.Scrypt `json:"scrypt,omitempty" toml:"scrypt"`
	// Warning: Deprecated. These three Pbkdf2 configs are required for backwards-compatibility :(
	Pbkdf2Hash       string `json:"pbkdf2hash,omitempty" toml:"pbkdf2hash"`
	Pbkdf2Iterations int    `json:"pbkdf2iterations,omitempty" toml:"pbkdf2iterations"`
	Pbkdf2SaltLen    int    `json:"pbkdf2saltlen,omitempty" toml:"pbkdf2saltlen"`
}

type AESGCMStore struct {
	Salt       []byte `json:"salt"`
	Nonce      []byte `json:"nonce"`
	Ciphertext []byte `json:"ciphertext"`
}

type ChaCha20Poly1305Client struct {
	// contains filtered or unexported fields
}

type ChaCha20Poly1305Settings struct {
	KeyDerivation string         `json:"keyderivation,omitempty" toml:"keyderivation"`
	PBKDF2        *pbkdf2.PBKDF2 `json:"pbkdf2,omitempty" toml:"pbkdf2"`
	Scrypt        *scrypt.Scrypt `json:"scrypt,omitempty" toml:"scrypt"`
}

type ChaCha20Poly1305Store struct {
	Salt       []byte `json:"salt"`
	Nonce      []byte `json:"nonce"`
	Ciphertext []byte `json:"ciphertext"`
}

type Client interface {
	Decrypt(data, password []byte) (plaintext []byte, err error)
	Encrypt(plaintext, password []byte) (data []byte, err error)
}

type Config struct {
	Type                      string `json:"type" toml:"type"`
	*OpenPGPSettings          `json:"openpgp,omitempty" toml:"openpgp"`
	*AESGCMSettings           `json:"aes_gcm,omitempty" toml:"aes_gcm"`
	*ChaCha20Poly1305Settings `json:"chachapoly,omitempty" toml:"chachapoly"`
}

type KeyDerivation interface {
	DeriveKey(password []byte, keyLen int) (key []byte, salt []byte, err error)
	DeriveKeyWithSalt(password, salt []byte, keyLen int) (key []byte, err error)
}

type OpenPGPClient struct {
	// contains filtered or unexported fields
}

type OpenPGPSettings struct {
	Cipher   string `json:"cipher,omitempty" toml:"cipher"`
	S2KCount int    `json:"s2kcount,omitempty" toml:"s2kcount"`
}