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keygen.go
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keygen.go
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package multisig
import (
"context"
"crypto/sha256"
"fmt"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/axelarnetwork/axelar-core/x/multisig/types"
"github.com/axelarnetwork/utils/log"
"github.com/axelarnetwork/utils/slices"
)
// ProcessKeygenStarted handles event keygen started
func (mgr *Mgr) ProcessKeygenStarted(event *types.KeygenStarted) error {
if !slices.Any(event.Participants, mgr.isParticipant) {
return nil
}
keyUID := fmt.Sprintf("%s_%d", event.GetKeyID().String(), 0)
partyUID := mgr.participant.String()
pubKey, err := mgr.generateKey(keyUID)
if err != nil {
return err
}
payloadHash := sha256.Sum256(mgr.ctx.FromAddress)
sig, err := mgr.sign(keyUID, payloadHash[:], pubKey)
if err != nil {
return err
}
log.Infof("operator %s sending public key for multisig key %s", partyUID, keyUID)
msg := types.NewSubmitPubKeyRequest(mgr.ctx.FromAddress, event.GetKeyID(), pubKey, sig)
if _, err := mgr.broadcaster.Broadcast(context.Background(), msg); err != nil {
return sdkerrors.Wrap(err, "handler goroutine: failure to broadcast outgoing submit pub key message")
}
return nil
}