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/bulletproof/generators.go

@@ -0,0 +1,57 @@
+//
+// Copyright Coinbase, Inc. All Rights Reserved.
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package bulletproof
+
+import (
+	"github.com/pkg/errors"
+	"golang.org/x/crypto/sha3"
+
+	"github.com/onsonr/sonr/crypto/core/curves"
+)
+
+// generators contains a list of points to be used as generators for bulletproofs.
+type generators []curves.Point
+
+// ippGenerators holds generators necessary for an Inner Product Proof
+// It includes a single u generator, and a list of generators divided in half to G and H
+// See lines 10 on pg 16 of https://eprint.iacr.org/2017/1066.pdf
+type ippGenerators struct {
+	G generators
+	H generators
+}
+
+// getGeneratorPoints generates generators using HashToCurve with Shake256(domain) as input
+// lenVector is the length of the scalars used for the Inner Product Proof
+// getGeneratorPoints will return 2*lenVector + 1 total points, split between a single u generator
+// and G and H lists of vectors per the IPP specification
+// See lines 10 on pg 16 of https://eprint.iacr.org/2017/1066.pdf
+func getGeneratorPoints(lenVector int, domain []byte, curve curves.Curve) (*ippGenerators, error) {
+	shake := sha3.NewShake256()
+	_, err := shake.Write(domain)
+	if err != nil {
+		return nil, errors.Wrap(err, "getGeneratorPoints shake.Write")
+	}
+	numPoints := lenVector * 2
+	points := make([]curves.Point, numPoints)
+	for i := 0; i < numPoints; i++ {
+		bytes := [64]byte{}
+		_, err := shake.Read(bytes[:])
+		if err != nil {
+			return nil, errors.Wrap(err, "getGeneratorPoints shake.Read")
+		}
+		nextPoint := curve.Point.Hash(bytes[:])
+		points[i] = nextPoint
+	}
+	// Get G and H by splitting points in half
+	G, H, err := splitPointVector(points)
+	if err != nil {
+		return nil, errors.Wrap(err, "getGeneratorPoints splitPointVector")
+	}
+	out := ippGenerators{G: G, H: H}
+
+	return &out, nil
+}