Koso x Koso

Encrypt message using public key of user with specified GitHub id.
Encrypted message can be processed by your Go program.
Inspired by naisho !

⚠Currently, only RSA is supported.

Usage

Encrypt

package main

import (
	"bytes"
	"fmt"
	"io"
	"os"

	"github.com/ddddddO/koso2"
)

func main() {
	ghUserID := "ddddddO"
	plainMessage := `こんにちは！
Hello!
Halo!
Bonjour!
你好!
안녕하세요!
habari!
`

	callback := func(encrypted string) error { // 'encrypted' is the encrypted plainMessage.
                fmt.Print(encrypted) // For example, we could add processing to send encrypted message to Slack.
		return nil
	}

	if err := koso2.Run(ghUserID, plainMessage, callback); err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
}

Decrypt

$ openssl pkeyutl -decrypt -in <Encrypted Message File> -inkey ~/.ssh/id_rsa \
    -pkeyopt rsa_padding_mode:oaep -pkeyopt rsa_oaep_md:sha256

Install

Package

$ go get github.com/ddddddO/koso2

CLI

Currently, this CLI only has function of encrypting message with public key of specified GitHub ID and outputting it to standard output.

$ go install github.com/ddddddO/koso2/cmd/koso2@latest

Miscellaneous

Multiple callbacks

err := koso2.Run(ghUserID, plainMessage, callback1, callback2, callback3)

Multiple callbacks concurrently

err := koso2.RunConcurrently(ghUserID, plainMessage, callback1, callback2, callback3)