Derive transparent (t-addr) keys from the HD seed and add BIP39 mnemonic seed
phrases that are byte-for-byte compatible with SilentDragonXLite, so the same
24 words recover the same shielded and transparent addresses in either wallet.
HD transparent keys:
- Derive t-keys from the seed at m/44'/coin'/0'/0/i (were random CKeys).
- CHDChain gains a version-gated transparent counter; existing wallets load
unchanged. GenerateNewKey routes through DeriveNewChildKey when enabled
(-hdtransparent, default on).
- Restore from a seed hex via -hdseed with gap-limit pre-derivation; birthday
pinned to genesis so the rescan is not clipped.
BIP39 seed phrases:
- Wire the vendored trezor BIP39 lib (src/crypto/bip39) into the build, fix its
BIP39_WORDS guard, and disable the insecure mnemonic cache.
- Match SDXLite exactly: English wordlist, empty passphrase, PBKDF2 64-byte
seed, coin type 141, ZIP-32 m/32'/141'/i' and BIP44 m/44'/141'/0'/0/i. Store
the 32-byte entropy and expand to the 64-byte seed on demand.
- Restore via -mnemonic, create via -usemnemonic, reveal via z_exportmnemonic.
Verified by gtests including a known-answer BIP39 seed vector and z/t address
derivation checks (src/gtest/test_hdtransparent.cpp, test_mnemonic_compat.cpp).
Docs in doc/hd-transparent-keys.md and doc/seed-phrase.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Removes the dumptxoutset RPC, -loadutxosnapshot / -loadutxosnapshotunsafe,
the CCoinsViewDB Dump/LoadSnapshot machinery + CUTXOSnapshotHeader, the
AssumeutxoData chainparams anchor, the LoadSnapshotChainstate activation +
reorg-below-H guard, the persisted assumeutxo-height flag, and the gtest.
Rationale: it duplicated the existing bootstrap (same skip-the-genesis-grind
fast-sync, no speed advantage), its only real edge was a trust model we don't
need for this chain, and it was inert anyway (no published snapshot hash in
chainparams). The -loadutxosnapshot load path adopted an external UTXO set and
bypassed genesis validation, so removing it also drops that attack surface.
Builds clean (no dangling references); the kept IBD speedups (RandomX
pre-verify, adaptive dbcache, tlsmanager) are untouched.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
LIBBITCOIN_SERVER was fed into both EXTRA_LIBRARIES (a list of buildable
library files) and several _LDADD link lines. Embedding the -lcurl linker
flag inside it made automake reject it in the EXTRA_LIBRARIES context
("'-lcurl' is not a standard library name"). Make LIBBITCOIN_SERVER a pure
file and route -lcurl through its own LIBCURL variable, added to the
dragonxd, hush-gtest, and test_bitcoin link lines after libbitcoin_server.a
(whose objects reference curl symbols) so static link order stays correct.
Verified with a clean Windows cross-build (-DCURL_STATICLIB) and a native
Linux build: both link cleanly and the automake lint is gone.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Parallel RandomX PoW pre-verification pool (CCheckQueue) run ahead of the serial
connect; consensus-neutral (inline CheckRandomXSolution fallback still verifies
anything not pre-verified). New -randomxverifythreads (default = -par).
- Adaptive dbcache: default sizes the UTXO/coins cache to most of RAM and shrinks
under memory pressure, always leaving a reserve free; -dbcache pins a fixed value.
- P2P block download: bounded socket recv-drain loop (tlsmanager); frontier-block
reassignment to break head-of-line stalls (-blockreassigntimeout); ProcessGetData
serves a bounded batch of blocks per pass instead of one (fixes the serve-side
one-block-per-tick throttle that caps download network-wide).
- assumeutxo: dumptxoutset RPC + LoadSnapshot machinery + AssumeutxoData chainparams.
- Signed bootstrap verification (util/bootstrap-dragonx.sh, util/sign-bootstrap.md).
- gtest: RandomX pre-verify consensus-equivalence test + UTXO-snapshot round-trip;
revived the gtest harness (Makefile.am include fix, Makefile.gtest.include).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
