aptok/verify.go

package main

import (
	"crypto/ed25519"
	"crypto/sha256"
	"encoding/json"
	"fmt"
	"github.com/btcsuite/btcutil/base58"
	"place.re128.org/ofs/aptok"
	// "crypto"
)

func main() {
	actor, err := activityserve.LoadActor("ED4xVR2hw6frfBNFJataKYZn58WnaotS8d8WKg4H5rfC")
	if err != nil {
		fmt.Println(err)
	}
	activityserve.Setup("config.ini", false)
	// rActor, err := activityserve.NewRemoteActor(actor, "https://mitra.social/.well-known/apgateway/did:key:z6MknVmyPtQmD2SaGnqyGgTVEqfqkkJJnY3YVKBmbzSUNCcX/actor")
	rActor, err := activityserve.NewRemoteActor(actor, "http://localhost:8000/silverpill.json")
	if err != nil {
		fmt.Println(err)
	}
	ractorRaw := rActor.GetRaw()
	proof := ractorRaw["proof"].(map[string]interface{})
	delete(ractorRaw, "proof")
	ractorJson, err := json.Marshal(ractorRaw)
	if err != nil {
		fmt.Println(err)
	}
	ractorJsonString := string(ractorJson)
	hashActor := sha256.New()
	hashActor.Write([]byte(ractorJsonString))
	hashActorRes := hashActor.Sum(nil)

	verificationMethod := proof["verificationMethod"].(string)
	proofValue := proof["proofValue"].(string)[0:]

	proofValueDecoded := base58.Decode(proofValue)
	proofValueStripped := proofValueDecoded[2:]
	publicKeyDecoded := base58.Decode(verificationMethod[9:])
	publicKeyDecoded32 := publicKeyDecoded[2:]
	// publicKey := ed25519.PublicKey(publicKeyDecoded32)
	// fmt.Println(publicKey)
	fmt.Println(publicKeyDecoded32)
	fmt.Println(hashActorRes)
	fmt.Println(proofValueStripped)
	err = ed25519.VerifyWithOptions(publicKeyDecoded32, hashActorRes, proofValueStripped, &ed25519.Options{
		Hash: 0,
	})
	if err != nil {
		fmt.Println(err)
	}
}