ecadlabs/signatory

package main

import (
    "encoding/hex"
    "fmt"

    "github.com/ecadlabs/gotez/v2/b58"
    "github.com/ecadlabs/gotez/v2/crypt"
    "github.com/ecadlabs/signatory/pkg/signatory"
    "github.com/spf13/cobra"
)

func NewAuthRequestCommand() *cobra.Command {
    cmd := &cobra.Command{
        Use:   "authenticate <secret key> <request pkh> <request body>",
        Short: "Authenticate (sign) a sign request",
        Args:  cobra.ExactArgs(3),
        RunE: func(cmd *cobra.Command, args []string) error {
            priv, err := crypt.ParsePrivateKey([]byte(args[0]))
            if err != nil {
                return err
            }

            pkh, err := b58.ParsePublicKeyHash([]byte(args[0]))
            if err != nil {
                return err
            }

            msg, err := hex.DecodeString(args[2])
            if err != nil {
                return err
            }

            req := signatory.SignRequest{
                Message:       msg,
                PublicKeyHash: pkh,
            }

            data, err := signatory.AuthenticatedBytesToSign(&req)
            if err != nil {
                return err
            }

            sig, err := priv.Sign(data)
            if err != nil {
                return err
            }
            fmt.Println(sig)
            return nil
        },
    }

    return cmd
}