crypto

Documentation

Overview

Package crypto provides tools for encrypting and decrypting files using age encryption and Shamir's Secret Sharing.

Index

• func Decrypt(name string, remove bool) error
• func Encrypt(name string) error
• type SharedSecret
• type SharedSecrets

Examples

• Decrypt
• Encrypt

Functions

func Decrypt

func Decrypt(name string, remove bool) error

Decrypt decrypts a file using age identity obtained through shamir secret sharing.

Example

package main

import (
	"log"
	"os"

	"gitlab.com/fav-cli/fav/pkg/crypto"
)

func main() {
	tmpFile, err := os.CreateTemp("/tmp", "fav-test-file")
	if err != nil {
		log.Fatal(err)
	}
	defer tmpFile.Close()

	_, err = tmpFile.WriteString("test data")
	if err != nil {
		log.Fatal(err)
	}

	err = crypto.Encrypt(tmpFile.Name())
	if err != nil {
		log.Fatal(err)
	}

	err = crypto.Decrypt(tmpFile.Name(), false)
	if err != nil {
		log.Fatal(err)
	}
}

func Encrypt

func Encrypt(name string) error

Encrypt encrypts the specified file using age encryption and distributes the resulting identity using Shamir's Secret Sharing.

Example

package main

import (
	"log"
	"os"

	"gitlab.com/fav-cli/fav/pkg/crypto"
)

func main() {
	tmpFile, err := os.CreateTemp("/tmp", "fav-test-file")
	if err != nil {
		log.Fatal(err)
	}
	defer tmpFile.Close()

	_, err = tmpFile.WriteString("test data")
	if err != nil {
		log.Fatal(err)
	}

	err = crypto.Encrypt(tmpFile.Name())
	if err != nil {
		log.Fatal(err)
	}
}

Types

type SharedSecret

type SharedSecret struct {
	FileName string
	Data     []byte
}

SharedSecret contains information about a shared secret.

type SharedSecrets

type SharedSecrets struct {
	Data []SharedSecret
}

SharedSecrets represents a collection of shared secrets.