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https://github.com/PR0M3TH3AN/SeedPass.git
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thePR0M3TH3ANandClaude Opus 5
ecff57e8c6
Every other derivation check compares this implementation against Python -- cross-verification, not ground truth. The BIP-85 specification's own test vectors (spec master xprv, 12- and 24-word BIP-39 children at index 0) are immune to the failure mode where both of our implementations share a misconception and agree with each other: Python has pinned them since early on (test_bip85_vectors.py), and now the TypeScript core runs them natively via a new Bip85.fromExtendedKey factory (the spec vectors start from an xprv, not a mnemonic). Python's pinned app-32 entropy and TOTP derivations from the same master ride along as cross-family anchors. All four pass on first contact -- an independent confirmation of the root derivation ahead of the external review, and recorded as such in the #34 review-strategy notes in TODO.md, along with the ultrareview size blocker (PR #989 spans 720k lines including beta's history) and its fallback options. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Tkj4rzKBA3uhfgk7kqjsb8
51 lines
2.1 KiB
TypeScript
51 lines
2.1 KiB
TypeScript
/**
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* BIP-85 official spec test vectors, run directly against this implementation.
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*
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* Every other derivation check in this repo compares us against the Python
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* implementation — which is cross-verification, not ground truth. These
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* vectors come from the BIP-85 specification itself (also pinned in Python's
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* test_bip85_vectors.py), so a shared misconception between our two
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* implementations cannot pass here.
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*/
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import { describe, expect, it } from "vitest";
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import { Bip85, deriveTotpSecret, bytesToHex } from "@seedpass/core";
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// The spec's master key (BIP-85 test vectors section).
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const MASTER_XPRV =
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"xprv9s21ZrQH143K2LBWUUQRFXhucrQqBpKdRRxNVq2zBqsx8HVqFk2uYo8kmbaLLHRdqtQpUm98uKfu3vca1LqdGhUtyoFnCNkfmXRyPXLjbKb";
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// Official BIP-39 application vectors (12 and 24 English words, index 0).
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const SPEC_12 =
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"girl mad pet galaxy egg matter matrix prison refuse sense ordinary nose";
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const SPEC_24 =
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"puppy ocean match cereal symbol another shed magic wrap hammer bulb intact gadget divorce twin tonight reason outdoor destroy simple truth cigar social volcano";
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// SeedPass-specific derivations from the same master, pinned identically in
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// Python's suite (not spec vectors, but a cross-family anchor for app 32 and
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// the TOTP path).
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const PY_SSH_ENTROPY =
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"52405cd0dd21c5be78314a7c1a3c65ffd8d896536cc7dee3157db5824f0c92e2";
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const PY_TOTP_SECRET = "VQYTWDNEWYBY2G3LOGGCEKR4LZ3LNEYY";
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describe("BIP-85 spec vectors", () => {
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const bip85 = Bip85.fromExtendedKey(MASTER_XPRV);
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it("derives the spec's 12-word BIP-39 vector", () => {
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expect(bip85.deriveMnemonic(0, 12)).toBe(SPEC_12);
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});
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it("derives the spec's 24-word BIP-39 vector", () => {
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expect(bip85.deriveMnemonic(0, 24)).toBe(SPEC_24);
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});
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it("matches Python's pinned app-32 entropy from the spec master", () => {
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const entropy = bip85.deriveEntropy({ index: 0, entropyBytes: 32, appNo: 32 });
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expect(bytesToHex(entropy)).toBe(PY_SSH_ENTROPY);
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});
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it("matches Python's pinned TOTP secret derived from the spec's 24-word child", () => {
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expect(deriveTotpSecret(SPEC_24, 0)).toBe(PY_TOTP_SECRET);
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});
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});
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