ChronoSeal v1.0.0 - Protocol Freeze & Audit Readiness

[thakares]

ChronoSeal v1.0.0 - Protocol Freeze & Audit Readiness

ChronoSeal v1.0.0 marks the first stable protocol release of ChronoSeal as a daemon-first browser attestation service.

This release completes the v1 hardening cycle, introduces protocol stability guarantees, adds black-box replay testing, fuzzing infrastructure, operational documentation, and establishes the long-term public contract for third-party integrations.

ChronoSeal is designed as a first-class Unix daemon.

The supported integration surface is the ChronoSeal protocol and REST API. Internal implementation details remain private and may evolve independently.

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Highlights

Protocol Stability

The ChronoSeal protocol has been formalized and documented.

Added:

• docs/PROTOCOL.md
• docs/PROTOCOL_STABILITY.md
• docs/WRAPPER_GUIDE.md

The following surfaces are now considered part of the public contract:

• /init
• /hb
• JSON request/response schemas
• VM opcode semantics
• Mutation commitment rules
• Hash-chain progression rules

Third-party wrappers should depend only on documented protocol behavior and REST APIs.

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Black-Box Replay Testing

Introduced:

chronoseal-replay

A standalone protocol validation utility that interacts with a running chronoseald instance exclusively through the public REST API.

Supported validation scenarios include:

• Valid session progression
• Replay attack rejection
• Invalid signatures
• Invalid VM execution traces
• Invalid mutation commitments
• Timestamp drift validation
• Concurrent heartbeat handling
• Rate-limiter verification

This tool enables deterministic protocol validation and regression testing without exposing internal implementation details.

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Fuzz Testing Infrastructure

Added a dedicated fuzzing workspace:

fuzz/

Current fuzz targets:

• VM execution engine
• Environment decoder
• Protocol parsing and validation

The fuzzing framework is built using:

cargo-fuzz
libfuzzer-sys

and is intended to support long-running adversarial testing and future CI integration.

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Property-Based Testing

Added property-based testing coverage for:

• VM execution stability
• Environment decoding robustness

Randomized testing validates that core deterministic components remain panic-free across arbitrary inputs.

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Documentation

Added:

• docs/OPERATIONS.md
• docs/SECURITY_ASSUMPTIONS.md
• docs/WHY_IT_FAILS.md
• docs/PROTOCOL.md
• docs/PROTOCOL_STABILITY.md
• docs/WRAPPER_GUIDE.md

These documents define:

• Protocol behavior
• Operational deployment guidance
• Security boundaries
• Failure analysis
• Wrapper development guidance
• Long-term protocol compatibility expectations

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Security & Reliability Hardening

Implemented:

• Server-side VM verification
• Session-state concurrency protection (CAS)
• Replay validation improvements
• Protocol verification enhancements
• Storage scalability improvements
• Improved observability and metrics support

The protocol now enforces:

• Stateful progression
• Mutation verification
• VM execution verification
• Replay resistance
• Concurrent update protection

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Architecture

ChronoSeal remains intentionally:

• Daemon-first
• Protocol-first
• API-first
• Unix-first

ChronoSeal is not:

• A Rust SDK
• An embeddable library
• A framework

The intended deployment model remains:

chronoseald
      ↓
REST API
      ↓
Applications / Wrappers

This release formalizes that philosophy and freezes the protocol rather than internal implementation details.

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New Components

Added

• chronoseal-replay/
• fuzz/
• docs/OPERATIONS.md
• docs/PROTOCOL.md
• docs/PROTOCOL_STABILITY.md
• docs/SECURITY_ASSUMPTIONS.md
• docs/WHY_IT_FAILS.md
• docs/WRAPPER_GUIDE.md

Updated

• shared/src/vm.rs
• shared/tests/

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Upgrade Notes

This release introduces protocol stability guarantees for future wrapper and integration development.

Consumers should rely exclusively on:

• Documented protocol behavior
• Documented REST APIs
• Published protocol specifications

Internal implementation details remain subject to change.

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Looking Ahead

Post-v1.0 development will focus on:

• Long-running fuzzing
• External security review
• Protocol validation
• Performance improvements
• Operational tooling
• Additional observability

without breaking the public protocol contract.

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Version: v1.0.0

Status: Stable Protocol Release

Project Type: Daemon-first Browser Attestation Service

Compatibility: Protocol v1

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This discussion was created from the release ChronoSeal v1.0.0 - Protocol Freeze & Audit Readiness.