test: Add PQC readiness tests for post-quantum key/signature sizes#6971
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favsidv wants to merge 2 commits intoXRPLF:developfrom
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test: Add PQC readiness tests for post-quantum key/signature sizes#6971favsidv wants to merge 2 commits intoXRPLF:developfrom
favsidv wants to merge 2 commits intoXRPLF:developfrom
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… Added a test suite that documents and verifies rippled's behavior when confronted with key and signature sizes typical of post-quantum algorithms (ML-DSA/CRYSTALS-Dilithium, Falcon, SLH-DSA). The 10 test cases confirm that oversized keys and signatures are rejected cleanly across publicKeyType, PublicKey construction, VL serialization, STTx checkSign, STValidation, ecdsaCanonicality, consensus proposal storage, and keyTypeFromString, with no crashes, no truncation, and no undefined behavior.
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Summary
PQCReadiness_test.cpp: 10 test cases (51 assertions) that document and verify rippled's behavior when confronted with post-quantum key and signature sizes (ML-DSA, Falcon, SLH-DSA);publicKeyType,PublicKeyconstruction, VL serialization,STTx::checkSign,STValidation,ecdsaCanonicality, consensus proposal storage, andkeyTypeFromString;Context
XRPL-Standards discussions #79 and #295 outline the path toward post-quantum cryptography in XRPL. AlphaNet has demonstrated Dilithium integration, but the official codebase has no tests documenting PQC readiness boundaries.
These tests use synthetic blobs at PQC-representative sizes (not actual PQC algorithms) to map where rippled currently blocks oversized cryptographic material.
Test plan
./xrpld --unittest=PQCReadiness, 10 cases, 51 tests, 0 failures.”