engine

package
v0.1.0 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jul 19, 2026 License: AGPL-3.0 Imports: 8 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrNoFormat          = errors.New("crypha: a carrier format is required")
	ErrUnknownFormat     = errors.New("crypha: unknown carrier format")
	ErrUnknownTechnique  = errors.New("crypha: unknown pdf technique")
	ErrTechniqueOnNonPDF = errors.New("crypha: technique only applies to the pdf format")
	ErrUndetected        = errors.New("crypha: no crypha payload detected; pass a format to force a carrier")
)

Functions

func Capacity 

func Capacity(format string, cover io.Reader) (int, error)

func EnvelopeSize 

func EnvelopeSize(data []byte, opts payload.Options) (int, error)

func Overhead 

func Overhead(encrypted bool) int

func ResolveCarrier 

func ResolveCarrier(format, technique string) (carrier.Carrier, error)

func Techniques 

func Techniques(format string) []string

Types

type CapacityRow 

type CapacityRow struct {
	Format   string
	Capacity int
	Err      error
}

func CapacityAll 

func CapacityAll(cover []byte) []CapacityRow

type FormatInfo 

type FormatInfo struct {
	Name       string
	Techniques []string
}

func Catalog 

func Catalog() []FormatInfo

type HideRequest 

type HideRequest struct {
	Format    string
	Technique string
	Cover     io.Reader
	Payload   []byte
	Out       io.Writer
	Options   payload.Options
}

type HideResult 

type HideResult struct {
	Format        string
	Technique     string
	PayloadBytes  int
	EnvelopeBytes int
	Encrypted     bool
	Compressed    bool
}

func Hide 

func Hide(req HideRequest) (HideResult, error)

type RevealRequest 

type RevealRequest struct {
	Format     string
	Stego      []byte
	Passphrase []byte
}

type RevealResult 

type RevealResult struct {
	Format    string
	Data      []byte
	Encrypted bool
}

func Reveal 

func Reveal(req RevealRequest) (RevealResult, error)

Source Files

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