feature/1121 implement ucan validation (#1176)

- **refactor: remove unused auth components**
- **refactor: improve devbox configuration and deployment process**
- **refactor: improve devnet and testnet setup**
- **fix: update templ version to v0.2.778**
- **refactor: rename pkl/net.matrix to pkl/matrix.net**
- **refactor: migrate webapp components to nebula**
- **refactor: protobuf types**
- **chore: update dependencies for improved security and stability**
- **feat: implement landing page and vault gateway servers**
- **refactor: Migrate data models to new module structure and update
related files**
- **feature/1121-implement-ucan-validation**
- **refactor: Replace hardcoded constants with model types in attns.go**
- **feature/1121-implement-ucan-validation**
- **chore: add origin Host struct and update main function to handle
multiple hosts**
- **build: remove unused static files from dwn module**
- **build: remove unused static files from dwn module**
- **refactor: Move DWN models to common package**
- **refactor: move models to pkg/common**
- **refactor: move vault web app assets to embed module**
- **refactor: update session middleware import path**
- **chore: configure port labels and auto-forwarding behavior**
- **feat: enhance devcontainer configuration**
- **feat: Add UCAN middleware for Echo with flexible token validation**
- **feat: add JWT middleware for UCAN authentication**
- **refactor: update package URI and versioning in PklProject files**
- **fix: correct sonr.pkl import path**
- **refactor: move JWT related code to auth package**
- **feat: introduce vault configuration retrieval and management**
- **refactor: Move vault components to gateway module and update file
paths**
- **refactor: remove Dexie and SQLite database implementations**
- **feat: enhance frontend with PWA features and WASM integration**
- **feat: add Devbox features and streamline Dockerfile**
- **chore: update dependencies to include TigerBeetle**
- **chore(deps): update go version to 1.23**
- **feat: enhance devnet setup with PATH environment variable and
updated PWA manifest**
- **fix: upgrade tigerbeetle-go dependency and remove indirect
dependency**
- **feat: add PostgreSQL support to devnet and testnet deployments**
- **refactor: rename keyshare cookie to token cookie**
- **feat: upgrade Go version to 1.23.3 and update dependencies**
- **refactor: update devnet and testnet configurations**
- **feat: add IPFS configuration for devnet**
- **I'll help you update the ipfs.config.pkl to include all the peers
from the shell script. Here's the updated configuration:**
- **refactor: move mpc package to crypto directory**
- **feat: add BIP32 support for various cryptocurrencies**
- **feat: enhance ATN.pkl with additional capabilities**
- **refactor: simplify smart account and vault attenuation creation**
- **feat: add new capabilities to the Attenuation type**
- **refactor: Rename MPC files for clarity and consistency**
- **feat: add DIDKey support for cryptographic operations**
- **feat: add devnet and testnet deployment configurations**
- **fix: correct key derivation in bip32 package**
- **refactor: rename crypto/bip32 package to crypto/accaddr**
- **fix: remove duplicate indirect dependency**
- **refactor: move vault package to root directory**
- **refactor: update routes for gateway and vault**
- **refactor: remove obsolete web configuration file**
- **refactor: remove unused TigerBeetle imports and update host
configuration**
- **refactor: adjust styles directory path**
- **feat: add broadcastTx and simulateTx functions to gateway**
- **feat: add PinVault handler**

crypto/core/protocol/protocol.go

@@ -0,0 +1,109 @@
+//
+// Copyright Coinbase, Inc. All Rights Reserved.
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package protocol
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+)
+
+var (
+	ErrNotInitialized   = fmt.Errorf("object has not been initialized")
+	ErrProtocolFinished = fmt.Errorf("the protocol has finished")
+)
+
+const (
+	// Dkls18Dkg specifies the DKG protocol of the DKLs18 potocol.
+	Dkls18Dkg = "DKLs18-DKG"
+
+	// Dkls18Sign specifies the DKG protocol of the DKLs18 potocol.
+	Dkls18Sign = "DKLs18-Sign"
+
+	// Dkls18Refresh specifies the DKG protocol of the DKLs18 potocol.
+	Dkls18Refresh = "DKLs18-Refresh"
+
+	// versions will increment in 100 intervals, to leave room for adding other versions in between them if it is
+	// ever needed in the future.
+
+	// Version0 is version 0!
+	Version0 = 100
+
+	// Version1 is version 2!
+	Version1 = 200
+)
+
+// Message provides serializers and deserializer for the inputs and outputs of each step of the protocol.
+// Moreover, it adds some metadata and versioning around the serialized data.
+type Message struct {
+	Payloads map[string][]byte //`json:"payloads"`
+	Metadata map[string]string //`json:"metadata"`
+	Protocol string            //`json:"protocol"`
+	Version  uint              //`json:"version"`
+}
+
+// EncodeMessage encodes the message to a string.
+func EncodeMessage(m *Message) (string, error) {
+	bz, err := json.Marshal(m)
+	if err != nil {
+		return "", err
+	}
+	return base64.StdEncoding.EncodeToString(bz), nil
+}
+
+// DecodeMessage decodes the message from a string.
+func DecodeMessage(s string) (*Message, error) {
+	bz, err := base64.StdEncoding.DecodeString(s)
+	if err != nil {
+		return nil, err
+	}
+	var m Message
+	if err := json.Unmarshal(bz, &m); err != nil {
+		return nil, err
+	}
+	return &m, nil
+}
+
+// MarshalJSON marshals the message to JSON.
+func (m *Message) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`{"payloads":%s,"metadata":%s,"protocol":%s,"version":%d}`, m.Payloads, m.Metadata, m.Protocol, m.Version)), nil
+}
+
+// UnmarshalJSON unmarshals the message from JSON.
+func (m *Message) UnmarshalJSON(data []byte) error {
+	var obj map[string]interface{}
+	if err := json.Unmarshal(data, &obj); err != nil {
+		return err
+	}
+	m.Payloads = make(map[string][]byte)
+	m.Metadata = make(map[string]string)
+	for k, v := range obj {
+		switch k {
+		case "payloads":
+			m.Payloads = v.(map[string][]byte)
+		case "metadata":
+			m.Metadata = v.(map[string]string)
+		case "protocol":
+			m.Protocol = v.(string)
+		case "version":
+			m.Version = uint(v.(float64))
+		}
+	}
+	return nil
+}
+
+// Iterator an interface for the DKLs18 protocols that follows the iterator pattern.
+type Iterator interface {
+	// Next runs the next round of the protocol.
+	// Returns `ErrProtocolFinished` when protocol has completed.
+	Next(input *Message) (*Message, error)
+
+	// Result returns the final result, if any, of the completed protocol.
+	// Returns nil if the protocol has not yet terminated.
+	// Returns an error if an error was encountered during protocol execution.
+	Result(version uint) (*Message, error)
+}