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group.go
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group.go
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package weshnet
import (
"github.com/libp2p/go-libp2p/core/crypto"
"google.golang.org/protobuf/proto"
"berty.tech/weshnet/v2/pkg/errcode"
"berty.tech/weshnet/v2/pkg/protocoltypes"
)
const CurrentGroupVersion = 1
// NewGroupMultiMember creates a new Group object and an invitation to be used by
// the first member of the group
func NewGroupMultiMember() (*protocoltypes.Group, crypto.PrivKey, error) {
return protocoltypes.NewGroupMultiMember()
}
func getAndFilterGroupDeviceChainKeyAddedPayload(m *protocoltypes.GroupMetadata, localMemberPublicKey crypto.PubKey) (crypto.PubKey, []byte, error) {
if m == nil || m.EventType != protocoltypes.EventType_EventTypeGroupDeviceChainKeyAdded {
return nil, nil, errcode.ErrCode_ErrInvalidInput
}
s := &protocoltypes.GroupDeviceChainKeyAdded{}
if err := proto.Unmarshal(m.Payload, s); err != nil {
return nil, nil, errcode.ErrCode_ErrDeserialization.Wrap(err)
}
senderDevicePubKey, err := crypto.UnmarshalEd25519PublicKey(s.DevicePk)
if err != nil {
return nil, nil, errcode.ErrCode_ErrDeserialization.Wrap(err)
}
destMemberPubKey, err := crypto.UnmarshalEd25519PublicKey(s.DestMemberPk)
if err != nil {
return nil, nil, errcode.ErrCode_ErrDeserialization.Wrap(err)
}
if !localMemberPublicKey.Equals(destMemberPubKey) {
return nil, nil, errcode.ErrCode_ErrGroupSecretOtherDestMember
}
return senderDevicePubKey, s.Payload, nil
}