产品
Personas
The cryptographic foundation for AI-native identity, encryption, signing, verifiable credentials, and consensus — proven in mission-critical production. Not your agent's keys, not your agent's identity.
核心能力
Personas
Personas is the cryptographic foundation for AI-native identity, encryption, signing, verifiable credentials, and consensus — proven in mission-critical production by major Japanese enterprises and government-backed consortia.
- Self-sovereign keys.
- Create and store public/private key pairs that you alone control. No certificate authority, no custodian — not even Keychain — ever holds your private keys.
- Encrypt and sign anything.
- End-to-end encrypt data so only intended recipients can read it, and digitally sign with full non-repudiation. Every signature is verifiable, attributable, and tamper-evident.
- Verifiable credentials with delegation.
- Issue and verify multi-layered, hierarchical credentials. Prove the ownership, rights, and authorizations of your agent or machine fleet — exposing nothing more than required.
Product screenshot Proven in production
Keychain has been proving itself in production for years — long before the agentic era arrived.
- Mission-critical, for years
- Run in production by major Japanese enterprises and government-sponsored consortia, where failure is not an option.
- Engineered ahead of its time
- We shipped the foundation the agentic era needs nearly a decade before it arrived.
- Designed to be relied on
- Well-defined, precisely documented, and unambiguous under scrutiny.
核心能力
The cryptographic foundation for AI-native identity, encryption, signing, verifiable credentials, and consensus — proven in mission-critical production. Not your agent's keys, not your agent's identity.
- Application-level consensus
- Offchain smart contracts: programmable, authenticated PROPOSE/PRECOMMIT/COMMIT agreement that coordinates autonomous machines. Multi-party, auditable, and rail-agnostic.
- Seamless key rollover
- Rotate keys without breaking delegation chains or counterparty relationships. Counterparties are notified and coordinated automatically — identity continuity without disruption.
- Offline capable
- Full cryptographic functionality with no network connection. Deploy to edge, IoT, embedded, and air-gapped environments — and recover through degraded conditions.
- Pre- and post-quantum
- NIST standard defaults with non-NIST options available. Future-proof your security posture today without re-architecting tomorrow.
- Multiparty computation
- Compute across multiple parties without revealing inputs. Collaborative security without shared secrets.
- Human-in-the-loop escalation
- Agents act within policy and escalate to the right human with cryptographic context when they can't. The bridge between autonomous action and human authority.
提供形式
SDK Libraries
First-class native SDKs in every major language
HTTP Server
RESTful API — sidecar, microservice, or hosted
MCP Server
Model Context Protocol tools for AI agents
CLI
Scripting, CI/CD pipelines, and automation
AI Agent Skills
Drop-in identity skills for any agent framework
Runs natively wherever you deploy
One core library — under 16 MB — built and architecture-verified across the operating systems, processors, and languages your systems already run. From cloud servers to embedded controllers, online or fully air-gapped.
- Operating systems
- LinuxAndroidiOSmacOSWindowsQNX
- Architectures
- x86-64x86ARMv7ARM64 / AArch64RISC-V 64
- C libraries
- glibcmusl
- Languages & runtimes
- C / C++PythonC#KotlinGoRustObjective-CROS 2
For embedded delivery, Keychain ships as a hermetic, dependency-free drop-in with a wide backward-compatibility floor — with Cortex-M and ESP32 (Zephyr / FreeRTOS) class targets on the roadmap.
Right for your world
Keychain runs in under 16 MB, online or offline, on every major architecture, operating system, and language, with NIST-standard defaults and non-NIST options. That range exists for one reason: so Keychain can meet the exact standards, environment, and configuration your domain demands.
Aviation & Defense
Air-gapped, offline-capable, and deterministic enough for safety-critical and classified systems.
Finance
Non-repudiation and auditable, application-level consensus for payments and digital-asset custody — at the latency your rails demand.
Healthcare
Confidential, self-sovereign handling of sensitive data, protected at rest, in transit, and in use.
Transportation & Robotics
A tiny footprint and offline robot-to-robot trust for fleets and vehicles operating on untrusted networks.
Logistics
Verifiable provenance and credentials that travel across partners, devices, and borders.
Enterprise IT
Standards-aligned identity, key, and access control that fits the estate you already run.
Entertainment
Self-sovereign identity and rights for digital twins, characters, and creator IP.