5b44a75493a1a098404d5e21dc384e74eae1892e refactor: Remove unused CExt{Pub,}Key (de)serialization methods (Sebastian Falbesoner)
Pull request description:
As pointed out in issue #17130, the serialization/deserialization methods for the classes `CExtKey` and
`CExtPubKey` are only used in the BIP32 unit tests and hence can be removed (see comments https://github.com/bitcoin/bitcoin/issues/17130#issuecomment-543750290, https://github.com/bitcoin/bitcoin/issues/17130#issuecomment-543794408 and https://github.com/bitcoin/bitcoin/issues/17130#issuecomment-543814727).
ACKs for top commit:
practicalswift:
ACK 5b44a75493a1a098404d5e21dc384e74eae1892e -- -60 LOC diff looks correct :)
promag:
ACK 5b44a75493a1a098404d5e21dc384e74eae1892e.
MarcoFalke:
unsigned ACK 5b44a75493a1a098404d5e21dc384e74eae1892e
fjahr:
ACK 5b44a75
jonatack:
Light ACK 5b44a75493a1a098404d5e21dc384e74eae1892e. Built, ran tests and bitcoind. `git blame` shows most of the last changes are from commit 90604f16af in 2015 to add bip32 pubkey serialization.
Tree-SHA512: 6887573b76b9e54e117a076557407b6f7908719b2202fb9eea498522baf9f30198b3f78b87a62efcd17ad1ab0886196f099239992ce7cbbaee79979ffe9e5f2c
5008dd87b2c9a8eeee21f2a11367a7ada9c324ed doc: Remove stale comment for CPrivKey (Calvin Kim)
Pull request description:
Removes stale doc about `secure_allocator` being defined in `allocators.h`.
ACKs for top commit:
laanwj:
ACK 5008dd87b2c9a8eeee21f2a11367a7ada9c324ed
theStack:
Code-review ACK 5008dd87b2c9a8eeee21f2a11367a7ada9c324ed
Tree-SHA512: eb65aff6db5b27d0db2b86f1d1dc6e066daccdaf00f7f9f95b5bee507167fcea2601316cdbd70da4ba32f1fab1e28e440a7e3cabd7b1a72c07dd20b1367361f0
8794a4b3ae4d34a4cd21a7dee9f694eef7726a4f QA: add test for HKDF HMAC_SHA256 L32 (Jonas Schnelli)
551d489416339dae8f9d896013cd060a21406e2b Add HKDF HMAC_SHA256 L=32 implementations (Jonas Schnelli)
3b64f852e400c552f031697d6a86829dc6e74bd6 QA: add test for CKey::Negate() (Jonas Schnelli)
463921bb649d644f79f9d7f0f96f10aa0d165f76 CKey: add method to negate the key (Jonas Schnelli)
Pull request description:
This adds a limited implementation of `HKDF` (defined by rfc5869) that supports only HMAC-SHA256 and length output of 32 bytes (will be required for v2 transport protocol).
This PR also includes a method to negate a private key which is useful to enforce public keys starting with 0x02 (or 0x03) (a requirement for the v2 transport protocol). The new `CKey::Negate()` method is pretty much a wrapper around `secp256k1_ec_privkey_negate()`.
Including tests.
This is a subset of #14032 and a pre-requirement for the v2 transport protocol.
ACKs for commit 8794a4:
Tree-SHA512: 5341929dfa29f5da766ec3612784baec6a3ad69972f08b5a985a8aafdae4dae36f104a2b888d1f5d1f33561456bd111f960d7e32c2cc4fd18e48358468f26c1a
3ccfa34b32 convert C-style (void) parameter lists to C++ style () (Arvid Norberg)
Pull request description:
In C, an empty parameter list, `()`, means the function takes any arguments, and `(void)` means the function does not take any parameters.
In C++, an empty parameter list means the function does not take any parameters.
So, C++ still supports `(void)` parameter lists with the same semantics, why change to `()`?
1. removing the redundant `void` improves signal-to-noise ratio of the code
2. using `(void)` exposes a rare inconsistency in that a template taking a template `(T)` parameter list, cannot be instantiated with `T=void`
Tree-SHA512: be2897b6c5e474873aa878ed6bac098382cd21866aec33752fe40b089a6331aa6263cae749aba1b4a41e8467f1a47086d32eb74abaf09927fd5a2f44a4b2109a
# Conflicts:
# src/qt/rpcconsole.cpp
e306be742932d4ea5aca0ea4768e54b2fc3dc6a0 Use 72 byte dummy signatures when watching only inputs may be used (Andrew Chow)
48b1473c898129a99212e2db36c61cf93625ea17 Use 71 byte signature for DUMMY_SIGNATURE_CREATOR (Andrew Chow)
18dfea0dd082af18dfb02981b7ee1cd44d514388 Always create 70 byte signatures with low R values (Andrew Chow)
Pull request description:
When creating signatures for transactions, always make one which has a 32 byte or smaller R and 32 byte or smaller S value. This results in signatures that are always less than 71 bytes (32 byte R + 32 byte S + 6 bytes DER + 1 byte sighash) with low R values. In most cases, the signature will be 71 bytes.
Because R is not mutable in the same way that S is, a low R value can only be found by trying different nonces. RFC 6979 for deterministic nonce generation has the option to specify additional entropy, so we simply use that and add a uin32_t counter which we increment in order to try different nonces. Nonces are sill deterministically generated as the nonce used will the be the first one where the counter results in a nonce that results in a low R value. Because different nonces need to be tried, time to produce a signature does increase. On average, it takes twice as long to make a signature as two signatures need to be created, on average, to find one with a low R.
Having a fixed size signature makes size calculations easier and also saves half a byte of transaction size, on average.
DUMMY_SIGNATURE_CREATOR has been modified to produce 71 byte dummy signatures instead of 72 byte signatures.
Tree-SHA512: 3cd791505126ce92da7c631856a97ba0b59e87d9c132feff6e0eef1dc47768e81fbb38bfbe970371bedf9714b7f61a13a5fe9f30f962c81734092a4d19a4ef33
6249021d1 [docs] Add release notes for HD master key -> HD seed rename (John Newbery)
79053a5f2 [rpc] [wallet] Add 'hdmasterkeyid' alias return values. (John Newbery)
c75c35141 [refactor] manually change remaining instances of master key to seed. (John Newbery)
131d4450b scripted-diff: Rename master key to seed (John Newbery)
Pull request description:
Addresses #12084 and #8684
This renames a couple of functions and members (no functional changes, expect log prints):
- Rename CKey::SetMaster to CKey::SetSeed
- Rename CHDChain::masterKeyId to CHDChain::seedID
- Rename CHDChain::hdMasterKeyID to CHDChain::hdSeedID
- Rename CWallet::GenerateNewHDMasterKey to CWallet::GenerateNewHDSeed
- Rename CWallet::SetHDMasterKey to CWallet::SetHDSeed
As well it introduces a tiny API change:
- RPC API change: Rename "hdmasterkeyid" to "hdseedid", rename "hdmaster" in wallet-dump output to "hdseed"
Fixes also a bug:
- Bugfix: use "s" instead of the incorrect "m" for the seed-key hd-keypath key metadata
Tree-SHA512: c913252636f213135a3b64df5de5d21844fb9c2d646567c1aad0ec65745188587de26119de99492c67e559bd49fdd9606b54276f00dddb84301785beba58f281
* scripted-diff: Replace #include "" with #include <> (ryanofsky)
-BEGIN VERIFY SCRIPT-
for f in \
src/*.cpp \
src/*.h \
src/bench/*.cpp \
src/bench/*.h \
src/compat/*.cpp \
src/compat/*.h \
src/consensus/*.cpp \
src/consensus/*.h \
src/crypto/*.cpp \
src/crypto/*.h \
src/crypto/ctaes/*.h \
src/policy/*.cpp \
src/policy/*.h \
src/primitives/*.cpp \
src/primitives/*.h \
src/qt/*.cpp \
src/qt/*.h \
src/qt/test/*.cpp \
src/qt/test/*.h \
src/rpc/*.cpp \
src/rpc/*.h \
src/script/*.cpp \
src/script/*.h \
src/support/*.cpp \
src/support/*.h \
src/support/allocators/*.h \
src/test/*.cpp \
src/test/*.h \
src/wallet/*.cpp \
src/wallet/*.h \
src/wallet/test/*.cpp \
src/wallet/test/*.h \
src/zmq/*.cpp \
src/zmq/*.h
do
base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f
done
-END VERIFY SCRIPT-
Signed-off-by: Pasta <pasta@dashboost.org>
* scripted-diff: Replace #include "" with #include <> (Dash Specific)
-BEGIN VERIFY SCRIPT-
for f in \
src/bls/*.cpp \
src/bls/*.h \
src/evo/*.cpp \
src/evo/*.h \
src/governance/*.cpp \
src/governance/*.h \
src/llmq/*.cpp \
src/llmq/*.h \
src/masternode/*.cpp \
src/masternode/*.h \
src/privatesend/*.cpp \
src/privatesend/*.h
do
base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f
done
-END VERIFY SCRIPT-
Signed-off-by: Pasta <pasta@dashboost.org>
* build: Remove -I for everything but project root
Remove -I from build system for everything but the project root,
and built-in dependencies.
Signed-off-by: Pasta <pasta@dashboost.org>
# Conflicts:
# src/Makefile.test.include
* qt: refactor: Use absolute include paths in .ui files
* qt: refactor: Changes to make include paths absolute
This makes all include paths in the GUI absolute.
Many changes are involved as every single source file in
src/qt/ assumes to be able to use relative includes.
Signed-off-by: Pasta <pasta@dashboost.org>
# Conflicts:
# src/qt/dash.cpp
# src/qt/optionsmodel.cpp
# src/qt/test/rpcnestedtests.cpp
* test: refactor: Use absolute include paths for test data files
* Recommend #include<> syntax in developer notes
* refactor: Include obj/build.h instead of build.h
* END BACKPORT #11651 Remove trailing whitespace causing travis failure
* fix backport 11651
Signed-off-by: Pasta <pasta@dashboost.org>
* More of 11651
* fix blockchain.cpp
Signed-off-by: pasta <pasta@dashboost.org>
* Add missing "qt/" in includes
* Add missing "test/" in includes
* Fix trailing whitespaces
Co-authored-by: Wladimir J. van der Laan <laanwj@gmail.com>
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
Co-authored-by: MeshCollider <dobsonsa68@gmail.com>
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
04ededf Make CKey::Load references const (Russell Yanofsky)
Pull request description:
No change in behavior, this just prevents CKey::Load arguments from looking
like outputs.
Tree-SHA512: 6d93bce109318e88ddd5c21ad626571344707ae0e6d46e898c76fd95a7afd1c32202a6b3dfab47d6a787c84dfcbb35343cdec898bcf8f668574aa224f2eed977
46c9043 Remove some unused functions and methods (Pieter Wuille)
Pull request description:
In the case of CKey's destructor, it seems to have been an oversight in #8753 not to delete it. At this point, it results in the move constructors/assignment operators for CKey being deleted, which may have
a performance impact (requiring a pool allocation/copy/free, rather than just handing over the pointer from one CKey to another)
Tree-SHA512: 89715bafe3e0bea2c46fc92bc6a1010360a3fee2719f97b81ca379581003409b0876b50f992208a3c13c7f5b77f1866db09954e7d102f6a452fe5d7aed2044a1
07685d1 Add length check for CExtKey deserialization (Jonas Schnelli)
Pull request description:
Fix a potential overwrite or uninitialised data issue.
That code part is currently unused (at least in Bitcoin Core).
We already do the same check `CExtPubKey`.
Reported by @guidovranken
Tree-SHA512: 069ac5335248cf890491bc019537d3b0f7481428a4b240c5cd28ee89b56f4c9f45d947dd626fe89b2fae58472b6dbef57ed909876efe9963e2d72380d17cff12
b51aaf1 Remove unused C++ code not covered by unit tests (practicalswift)
Tree-SHA512: 267bbd87df01a296bf23e82a8b6ee968e13e23a6aaecc535d803890a3e3e9f6208c7fc4c1f97afd98ed3e498b12fe1ada7e3cb2977ad12359a813f57336c74e5
d59a518 Use fixed preallocation instead of costly GetSerializeSize (Pieter Wuille)
25a211a Add optimized CSizeComputer serializers (Pieter Wuille)
a2929a2 Make CSerAction's ForRead() constexpr (Pieter Wuille)
a603925 Avoid -Wshadow errors (Pieter Wuille)
5284721 Get rid of nType and nVersion (Pieter Wuille)
657e05a Make GetSerializeSize a wrapper on top of CSizeComputer (Pieter Wuille)
fad9b66 Make nType and nVersion private and sometimes const (Pieter Wuille)
c2c5d42 Make streams' read and write return void (Pieter Wuille)
50e8a9c Remove unused ReadVersion and WriteVersion (Pieter Wuille)
444c673 bench: Add benchmark for lockedpool allocation/deallocation (Wladimir J. van der Laan)
6567999 rpc: Add `getmemoryinfo` call (Wladimir J. van der Laan)
4536148 support: Add LockedPool (Wladimir J. van der Laan)
f4d1fc2 wallet: Get rid of LockObject and UnlockObject calls in key.h (Wladimir J. van der Laan)
999e4c9 wallet: Change CCrypter to use vectors with secure allocator (Wladimir J. van der Laan)
* HD wallet
Minimal set of changes (no refactoring) backported from Bitcoin upstream to make HD wallets work in Dash 0.12.1.x+
* minimal bip44 (hardcoded account and change)
* minimal bip39
Additional cmd-line options for new wallet:
-mnemonic
-mnemonicpassphrase
* Do not recreate HD wallet on encryption
Adjusted keypool.py test
* Do not store any private keys for hd wallet besides the master one
Derive all keys on the fly.
Original idea/implementation - btc PR9298, backported and improved
* actually use bip39
* pbkdf2 test
* backport wallet-hd.py test
* Allow specifying hd seed, add dumphdseed rpc, fix bugs
- -hdseed cmd-line param to specify HD seed on wallet creation
- dumphdseed rpc to dump HD seed
- allow seed of any size
- fix dumpwallet rpc bug (wasn't decrypting HD seed)
- print HD seed and extended public masterkey on dumpwallet
* top up keypool on HD wallet encryption
* split HD chain: external/internal
* add missing cs_wallet lock in init.cpp
* fix `const char *` issues (use strings)
* default mnemonic passphrase is an empty string in all cases
* store mnemonic/mnemonicpassphrase
replace dumphdseed with dumphdinfo
* Add fCrypted flag to CHDChain
* prepare internal structures for multiple HD accounts
(plus some code cleanup)
* use secure allocator for storing sensitive HD data
* use secure strings for mnemonic(passphrase)
* small fix in GenerateNewHDChain
* use 24 words for mnemonic by default
* make sure mnemonic passphrase provided by user does not exceed 256 symbols
* more usage of secure allocators and memory_cleanse
* code cleanup
* rename: CSecureVector -> SecureVector
* add missing include
* fix warning in rpcdump.cpp
* refactor mnemonic_check (also fix a bug)
* move bip39 functions to CMnemonic
* Few fixes for CMnemonic:
- use `SecureVector` for data, bits, seed
- `Check` should return bool
* init vectors with desired size where possible
libsecp256k1's API changed, so update key.cpp to use it.
Libsecp256k1 now has explicit context objects, which makes it completely thread-safe.
In turn, keep an explicit context object in key.cpp, which is explicitly initialized
destroyed. This is not really pretty now, but it's more efficient than the static
initialized object in key.cpp (which made for example bitcoin-tx slow, as for most of
its calls, libsecp256k1 wasn't actually needed).
This also brings in the new blinding support in libsecp256k1. By passing in a random
seed, temporary variables during the elliptic curve computations are altered, in such
a way that if an attacker does not know the blind, observing the internal operations
leaks less information about the keys used. This was implemented by Greg Maxwell.
Add a sanity check to prevent cosmic rays from flipping a bit in the
generated public key, or bugs in the elliptic curve code. This is
simply done by signing a (randomized) message, and verifying the
result.
This allows for a reversal of the current behavior.
This:
CScript foo;
CScriptID bar(foo.GetID());
Becomes:
CScript foo;
CScriptID bar(foo);
This way, CScript is no longer dependent on CScriptID or Hash();
- ensures a consistent usage in header files
- also add a blank line after the copyright header where missing
- also remove orphan new-lines at the end of some files
Previously if bitcoind is linked with an OpenSSL which is compiled
without EC support, this is seen as an assertion failure "pKey !=
NULL" at key.cpp:134, which occurs after several seconds. It is an
esoteric piece of knowledge to interpret this as "oops, I linked
with the wrong OpenSSL", and because of the delay it may not even
be noticed.
The new output is
: OpenSSL appears to lack support for elliptic curve cryptography. For
more information, visit
https://en.bitcoin.it/wiki/OpenSSL_and_EC_Libraries
: Initialization sanity check failed. Bitcoin Core is shutting down.
which occurs immediately after attempted startup.
This also blocks in an InitSanityCheck() function which currently only
checks for EC support but should eventually do more. See #4081.
a81cd968 introduced a malleability breaker for signatures
(using an even value for S). In e0e14e43 this was changed to
the lower of two potential values, rather than the even one.
Only the signing code was changed though, the (for now unused)
verification code wasn't adapted.
