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Savely Krendelhoff 2025-08-22 19:07:24 +07:00
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@ -8,27 +8,27 @@
- [X] Create PoW challenge structure and types - [X] Create PoW challenge structure and types
- [X] Set up testing framework and utilities - [X] Set up testing framework and utilities
- [ ] **Challenge Generation & HMAC Security** - [X] **Challenge Generation & HMAC Security**
- [X] Implement HMAC-signed challenge generation (stateless) - [X] Implement HMAC-signed challenge generation (stateless)
- [ ] Create challenge authenticity verification - [X] Create challenge authenticity verification
- [ ] Add timestamp validation for replay protection (5 minutes TTL) - [X] Add timestamp validation for replay protection (5 minutes TTL)
- [ ] Implement canonical challenge field ordering for HMAC - [X] Implement canonical challenge field ordering for HMAC
- [ ] Add Base64URL encoding for HMAC signatures - [X] Add Base64URL encoding for HMAC signatures (JSON handles this)
- [ ] Implement challenge string construction (`quotes:timestamp:difficulty:random`) - [X] Implement challenge string construction (`quotes:timestamp:difficulty:random`)
- [ ] **PoW Algorithm Implementation** - [X] **PoW Algorithm Implementation**
- [ ] Implement SHA-256 based PoW solution algorithm - [X] Implement SHA-256 based PoW solution algorithm
- [ ] Implement leading zero bit counting for difficulty - [X] Implement leading zero bit counting for difficulty
- [ ] Create nonce iteration and solution finding - [X] Create nonce iteration and solution finding
- [ ] Add difficulty scaling (3-10 bits range) - [X] Add difficulty scaling (3-10 bits range)
- [ ] Create challenge string format: `quotes:timestamp:difficulty:random:nonce` - [X] Create challenge string format: `quotes:timestamp:difficulty:random:nonce`
- [ ] Implement hash verification for submitted solutions - [X] Implement hash verification for submitted solutions
- [ ] **Verification & Validation** - [X] **Verification & Validation**
- [ ] Create challenge verification logic with HMAC validation - [X] Create challenge verification logic with HMAC validation
- [ ] Add solution validation against original challenge - [X] Add solution validation against original challenge
- [ ] Test HMAC tamper detection and validation - [X] Test HMAC tamper detection and validation
- [ ] Add difficulty adjustment mechanisms - [X] Add difficulty adjustment mechanisms (config-based)
- [ ] **Testing & Performance** - [ ] **Testing & Performance**
- [ ] Unit tests for challenge generation and verification - [ ] Unit tests for challenge generation and verification