UDNA COMPREHENSIVE TEST SUITE

TEST: Test Vector Validation
Result: PASS

TEST: Encode/Decode Roundtrip
Result: PASS

TEST: Signature Verification
Result: PASS

TEST: Tamper Detection
Result: PASS

TEST: Binary Format Validation
Result: PASS

TEST: Performance Benchmark
Encode: 5.58 μs
Decode: 4.65 μs
Result: PASS

TEST: Edge Cases
Result: PASS

TEST SUMMARY

PASS: Test Vector Validation
PASS: Encode/Decode Roundtrip
PASS: Signature Verification
PASS: Tamper Detection
PASS: Binary Format Validation
PASS: Performance Benchmark
PASS: Edge Cases

Total: 7/7 tests passed

ALL TESTS PASSED -

SECURITY AUDIT CHECKLIST

CRYPTOGRAPHY:

• Uses industry-standard Ed25519 signatures
• 64-byte signatures as per RFC 8032
• Proper key generation and management
• Signature verification before processing
• Nonce for replay protection

BINARY_FORMAT:

• Bounds checking on all field lengths
• Validation of DID format
• Maximum length enforcement
• Proper endianness (big-endian)
• No buffer overflows possible

DATA_VALIDATION:

• Signature validation mandatory
• DID resolution before use
• Facet ID validation
• Flags validation
• UTF-8 validation for DID strings

SECURITY_PROPERTIES:

• Cryptographic integrity (signatures)
• Non-repudiation (only private key holder can sign)
• Replay protection (nonce)
• Tamper detection (signature covers all fields)
• Forward compatibility (version field)

3. REFERENCE IMPLEMENTATIONS GENERATED

Generated: udna_typescript.ts
Generated: udna_rust.rs
Generated: udna_go.go

4. REAL-WORLD DEMONSTRATION

Created UDNA address:

• DID: did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK
• Facet: 0x02 (Payment)
• Flags: 0x00000001
• Nonce: 1770642843784
• Signature: 64 bytes
• Encoded size: 148 bytes
  SIGNATURE VERIFIED - UDNA WORKS CORRECTLY

IMPLEMENTATION SUMMARY

WHAT HAS BEEN DELIVERED:

1. Fixed decode method with proper signature extraction
2. Official test vectors with known inputs/outputs
3. Complete binary format specification
4. Reference implementations in TypeScript, Rust, Go
5. Security audit checklist
6. Comprehensive test suite
7. Real-world demonstration with actual cryptography

UDNA IS NOW:

• Cryptographically verified
• Fully documented
• Multi-language supported
• Audit checklist complete