mirror of
https://github.com/planetmint/planetmint-go.git
synced 2025-03-30 15:08:28 +00:00
34182773dc
removed not working hex.DecodeString(cid) removed potential double hashing (hashing the hash with the same hash method) removed the double hashing and the encoding issue from the serverside asset message verification code. Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
package keeper
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import (
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"context"
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"encoding/hex"
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"errors"
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"planetmint-go/x/asset/types"
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"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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func (k msgServer) NotarizeAsset(goCtx context.Context, msg *types.MsgNotarizeAsset) (*types.MsgNotarizeAssetResponse, error) {
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ctx := sdk.UnwrapSDKContext(goCtx)
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_, found := k.machineKeeper.GetMachineIndex(ctx, msg.PubKey)
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if !found {
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return nil, errors.New("machine not found")
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}
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valid := ValidateSignature(msg.Hash, msg.Signature, msg.PubKey)
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if !valid {
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return nil, errors.New("invalid signature")
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}
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var asset = types.Asset{
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Hash: msg.Hash,
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Signature: msg.Signature,
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Pubkey: msg.PubKey,
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}
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k.StoreAsset(ctx, asset)
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return &types.MsgNotarizeAssetResponse{}, nil
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}
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func ValidateSignature(message string, signature string, publicKey string) bool {
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// Convert the message, signature, and public key from hex to bytes
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messageBytes := []byte(message)
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signatureBytes, _ := hex.DecodeString(signature)
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publicKeyBytes, _ := hex.DecodeString(publicKey)
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// Create a secp256k1 public key object
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pubKey := &secp256k1.PubKey{Key: publicKeyBytes}
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// Verify the signature
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isValid := pubKey.VerifySignature(messageBytes, signatureBytes)
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return isValid
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}
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