pathiv

package

v0.0.0-...-ece74ff Latest Latest Go to latest Published: Jun 11, 2021 License: MIT Imports: 3 Imported by: 0

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Repository

github.com/HorizonLiu/gocryptfs

Links

Open Source Insights

Documentation ¶

Index ¶

func BlockIV(block0iv []byte, blockNo uint64) []byte
func Derive(path string, purpose Purpose) []byte
type FileIVs
- func DeriveFile(path string) (fileIVs FileIVs)
type Purpose

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func BlockIV ¶

func BlockIV(block0iv []byte, blockNo uint64) []byte

BlockIV returns the block IV for block number "blockNo". "block0iv" is the block IV of block #0.

func Derive ¶

func Derive(path string, purpose Purpose) []byte

Derive derives an IV from an encrypted path by hashing it with sha256

Types ¶

type FileIVs ¶

type FileIVs struct {
	ID       []byte
	Block0IV []byte
}

FileIVs contains both IVs that are needed to create a file.

func DeriveFile ¶

func DeriveFile(path string) (fileIVs FileIVs)

DeriveFile derives both IVs that are needed to create a file and returns them in a container struct.

type Purpose ¶

type Purpose string

Purpose identifies for which purpose the IV will be used. This is mixed into the derivation.

const (
	// PurposeDirIV means the value will be used as a directory IV
	PurposeDirIV Purpose = "DIRIV"
	// PurposeFileID means the value will be used as the file ID in the file header
	PurposeFileID Purpose = "FILEID"
	// PurposeSymlinkIV means the value will be used as the IV for symlink encryption
	PurposeSymlinkIV Purpose = "SYMLINKIV"
	// PurposeBlock0IV means the value will be used as the IV of ciphertext block #0.
	PurposeBlock0IV Purpose = "BLOCK0IV"
)

Source Files ¶

View all Source files

pathiv.go

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