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Security · Primitives

Cryptographic
primitives

A small set of widely adopted primitives underpin the specification and the reference implementations. Verifiers validate identities offline using standards-track algorithms — without custom cryptography.

Count
5
Custom crypto
None
Mode
Offline-verifiable
A closer lookTrust deserves a closer look.
OPENAGENTID / FIELD NOTES04IDENTITY + PROOFCHECK BEFORE ACCEPTING

Inspect the identity, follow the proof, and check the boundary before accepting an action.

  1. 01Present the identity
  2. 02Inspect the proof
  3. 03Check the scope
  4. 04Read the result
§ 01
The table

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Each cell is one primitive. Select it to read properties and why it matters for identity verification.

Ed

Ed25519

Signatures
EdDSA signature scheme on Curve25519. Deterministic signing, compact signatures, and broad ecosystem support.
Key Size256-bit
Signature64 bytes
Security128-bit
StandardRFC 8032

Why it matters

Used for signing and verification in DID documents and related proofs. The goal is offline verification: a verifier can validate signatures without calling a network.