feature/1114 implement account interface (#1167)

- **refactor: move session-related code to middleware package**
- **refactor: update PKL build process and adjust related
configurations**
- **feat: integrate base.cosmos.v1 Genesis module**
- **refactor: pass session context to modal rendering functions**
- **refactor: move nebula package to app directory and update templ
version**
- **refactor: Move home section video view to dedicated directory**
- **refactor: remove unused views file**
- **refactor: move styles and UI components to global scope**
- **refactor: Rename images.go to cdn.go**
- **feat: Add Empty State Illustrations**
- **refactor: Consolidate Vault Index Logic**
- **fix: References to App.wasm and remove Vault Directory embedded CDN
files**
- **refactor: Move CDN types to Models**
- **fix: Correct line numbers in templ error messages for
arch_templ.go**
- **refactor: use common types for peer roles**
- **refactor: move common types and ORM to a shared package**
- **fix: Config import dwn**
- **refactor: move nebula directory to app**
- **feat: Rebuild nebula**
- **fix: correct file paths in panels templates**
- **feat: Remove duplicate types**
- **refactor: Move dwn to pkg/core**
- **refactor: Binary Structure**
- **feat: Introduce Crypto Pkg**
- **fix: Broken Process Start**
- **feat: Update pkg/* structure**
- **feat: Refactor PKL Structure**
- **build: update pkl build process**
- **chore: Remove Empty Files**
- **refactor: remove unused macaroon package**
- **feat: Add WebAwesome Components**
- **refactor: consolidate build and generation tasks into a single
taskfile, remove redundant makefile targets**
- **refactor: refactor server and move components to pkg/core/dwn**
- **build: update go modules**
- **refactor: move gateway logic into dedicated hway command**
- **feat: Add KSS (Krawczyk-Song-Song) MPC cryptography module**
- **feat: Implement MPC-based JWT signing and UCAN token generation**
- **feat: add support for MPC-based JWT signing**
- **feat: Implement MPC-based UCAN capabilities for smart accounts**
- **feat: add address field to keyshareSource**
- **feat: Add comprehensive MPC test suite for keyshares, UCAN tokens,
and token attenuations**
- **refactor: improve MPC keyshare management and signing process**
- **feat: enhance MPC capability hierarchy documentation**
- **refactor: rename GenerateKeyshares function to NewKeyshareSource for
clarity**
- **refactor: remove unused Ethereum address computation**
- **feat: Add HasHandle and IsAuthenticated methods to HTTPContext**
- **refactor: Add context.Context support to session HTTPContext**
- **refactor: Resolve context interface conflicts in HTTPContext**
- **feat: Add session ID context key and helper functions**
- **feat: Update WebApp Page Rendering**
- **refactor: Simplify context management by using single HTTPContext
key**
- **refactor: Simplify HTTPContext creation and context management in
session middleware**
- **refactor: refactor session middleware to use a single data
structure**
- **refactor: Simplify HTTPContext implementation and session data
handling**
- **refactor: Improve session context handling and prevent nil pointer
errors**
- **refactor: Improve session context handling with nil safety and type
support**
- **refactor: improve session data injection**
- **feat: add full-screen modal component and update registration flow**
- **chore: add .air.toml to .gitignore**
- **feat: add Air to devbox and update dependencies**

pkg/crypto/signatures/common/proof_committed_builder.go

@@ -0,0 +1,86 @@
+//
+// Copyright Coinbase, Inc. All Rights Reserved.
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package common
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/onsonr/sonr/pkg/crypto/core/curves"
+)
+
+const limit = 65535
+
+// ProofCommittedBuilder is used to create
+// proofs from multiple commitments where
+// each secret is committed with a random blinding factor
+// and turned into a Schnorr proof
+type ProofCommittedBuilder struct {
+	points  []curves.Point
+	scalars []curves.Scalar
+	curve   *curves.Curve
+}
+
+// NewProofCommittedBuilder creates a new builder using the specified curve
+func NewProofCommittedBuilder(curve *curves.Curve) *ProofCommittedBuilder {
+	return &ProofCommittedBuilder{
+		points:  []curves.Point{},
+		scalars: []curves.Scalar{},
+		curve:   curve,
+	}
+}
+
+// CommitRandom uses the specified point and commits a random value to it
+func (pcb *ProofCommittedBuilder) CommitRandom(point curves.Point, reader io.Reader) error {
+	if len(pcb.points) > limit {
+		return fmt.Errorf("limit for commitments reached")
+	}
+	pcb.points = append(pcb.points, point)
+	pcb.scalars = append(pcb.scalars, pcb.curve.Scalar.Random(reader))
+	return nil
+}
+
+// Commit uses the specified point and scalar to create a commitment
+func (pcb *ProofCommittedBuilder) Commit(point curves.Point, scalar curves.Scalar) error {
+	if len(pcb.points) > limit {
+		return fmt.Errorf("limit for commitments reached")
+	}
+	pcb.points = append(pcb.points, point)
+	pcb.scalars = append(pcb.scalars, scalar)
+	return nil
+}
+
+// Get returns the point and scalar at the specified index
+func (pcb *ProofCommittedBuilder) Get(index int) (curves.Point, curves.Scalar) {
+	if index >= len(pcb.points) || index < 0 {
+		return nil, nil
+	}
+	return pcb.points[index], pcb.scalars[index]
+}
+
+// GetChallengeContribution returns the bytes that should be added to
+// a sigma protocol transcript for generating the challenge
+func (pcb ProofCommittedBuilder) GetChallengeContribution() []byte {
+	commitment := pcb.curve.Point.SumOfProducts(pcb.points, pcb.scalars)
+	if commitment == nil {
+		return nil
+	}
+	return commitment.ToAffineCompressed()
+}
+
+// GenerateProof converts the blinding factors and secrets into Schnorr proofs
+func (pcb ProofCommittedBuilder) GenerateProof(challenge curves.Scalar, secrets []curves.Scalar) ([]curves.Scalar, error) {
+	if len(secrets) != len(pcb.scalars) {
+		return nil, fmt.Errorf("secrets is not equal to blinding factors")
+	}
+
+	proofs := make([]curves.Scalar, len(pcb.scalars))
+	for i, sc := range pcb.scalars {
+		proofs[i] = secrets[i].MulAdd(challenge, sc)
+	}
+	return proofs, nil
+}