SEP-10 / Soroban-compatible authentication patterns & examples (#260) - #285
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SEP-10 / Soroban-compatible authentication patterns & examples (#260)#285A6dulmalik wants to merge 1 commit into
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…s (issue StelTade#260) - Offline SEP-10 challenge/response primitives: canonical payload construction, dual server+client ed25519 verification, validity-window checks, strkey codec with CRC16 validation - HMAC session tokens (JWT analogue) with explicit expiry - Sep10Gate integration layer: session-gated contract intents and a fee-sponsored relayer flow with client-signed intents - Replay protections at every stage (challenge nonce, intent tuples) - 14 vitest tests covering accepted/rejected auth flows and replay; tsc --noEmit strict-clean - Developer README documenting the step-by-step flow and GrantFox/ Stellar adoption guidance
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Closes #260
Summary
Adds
examples/sep10-auth— a dependency-light (tweetnacl only), fully offline TypeScript reference implementation of SEP-10 tailored to SwapTrade:src/sep10.ts): canonical payload construction mirroring SEP-10'smanage_datasemantics, verification of both server and client ed25519 signatures, 15-minute validity window, and a StellarG...strkey codec with CRC16-xmodem checksums.src/gating.ts): two patterns — session gate (backend relays Soroban invocations only for valid tokens, passing the verified account into the authorization entry) and fee-sponsored relayer (clients sign canonical intent payloads; relayer verifies against the claimed account)..gitignoreexcludes*.json, so the example'spackage.json/tsconfig.jsonare force-added intentionally.Acceptance criteria mapping
README.mdquick start + flow sectionsSep10Gate.authorizeWithToken/authorizeSignedIntent__tests__/Validation
npm test: 14/14 passingnpx tsc --noEmit(strict): clean