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-rw-r--r--src/script/descriptor.cpp251
-rw-r--r--src/script/descriptor.h51
-rw-r--r--src/test/descriptor_tests.cpp74
3 files changed, 285 insertions, 91 deletions
diff --git a/src/script/descriptor.cpp b/src/script/descriptor.cpp
index b1d9a5bda7..83dc046ca1 100644
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -150,10 +150,22 @@ typedef std::vector<uint32_t> KeyPath;
/** Interface for public key objects in descriptors. */
struct PubkeyProvider
{
+protected:
+ //! Index of this key expression in the descriptor
+ //! E.g. If this PubkeyProvider is key1 in multi(2, key1, key2, key3), then m_expr_index = 0
+ uint32_t m_expr_index;
+
+public:
+ PubkeyProvider(uint32_t exp_index) : m_expr_index(exp_index) {}
+
virtual ~PubkeyProvider() = default;
- /** Derive a public key. If key==nullptr, only info is desired. */
- virtual bool GetPubKey(int pos, const SigningProvider& arg, CPubKey* key, KeyOriginInfo& info) const = 0;
+ /** Derive a public key.
+ * read_cache is the cache to read keys from (if not nullptr)
+ * write_cache is the cache to write keys to (if not nullptr)
+ * Caches are not exclusive but this is not tested. Currently we use them exclusively
+ */
+ virtual bool GetPubKey(int pos, const SigningProvider& arg, CPubKey& key, KeyOriginInfo& info, const DescriptorCache* read_cache = nullptr, DescriptorCache* write_cache = nullptr) = 0;
/** Whether this represent multiple public keys at different positions. */
virtual bool IsRange() const = 0;
@@ -182,10 +194,10 @@ class OriginPubkeyProvider final : public PubkeyProvider
}
public:
- OriginPubkeyProvider(KeyOriginInfo info, std::unique_ptr<PubkeyProvider> provider) : m_origin(std::move(info)), m_provider(std::move(provider)) {}
- bool GetPubKey(int pos, const SigningProvider& arg, CPubKey* key, KeyOriginInfo& info) const override
+ OriginPubkeyProvider(uint32_t exp_index, KeyOriginInfo info, std::unique_ptr<PubkeyProvider> provider) : PubkeyProvider(exp_index), m_origin(std::move(info)), m_provider(std::move(provider)) {}
+ bool GetPubKey(int pos, const SigningProvider& arg, CPubKey& key, KeyOriginInfo& info, const DescriptorCache* read_cache = nullptr, DescriptorCache* write_cache = nullptr) override
{
- if (!m_provider->GetPubKey(pos, arg, key, info)) return false;
+ if (!m_provider->GetPubKey(pos, arg, key, info, read_cache, write_cache)) return false;
std::copy(std::begin(m_origin.fingerprint), std::end(m_origin.fingerprint), info.fingerprint);
info.path.insert(info.path.begin(), m_origin.path.begin(), m_origin.path.end());
return true;
@@ -212,10 +224,10 @@ class ConstPubkeyProvider final : public PubkeyProvider
CPubKey m_pubkey;
public:
- ConstPubkeyProvider(const CPubKey& pubkey) : m_pubkey(pubkey) {}
- bool GetPubKey(int pos, const SigningProvider& arg, CPubKey* key, KeyOriginInfo& info) const override
+ ConstPubkeyProvider(uint32_t exp_index, const CPubKey& pubkey) : PubkeyProvider(exp_index), m_pubkey(pubkey) {}
+ bool GetPubKey(int pos, const SigningProvider& arg, CPubKey& key, KeyOriginInfo& info, const DescriptorCache* read_cache = nullptr, DescriptorCache* write_cache = nullptr) override
{
- if (key) *key = m_pubkey;
+ key = m_pubkey;
info.path.clear();
CKeyID keyid = m_pubkey.GetID();
std::copy(keyid.begin(), keyid.begin() + sizeof(info.fingerprint), info.fingerprint);
@@ -246,22 +258,36 @@ enum class DeriveType {
/** An object representing a parsed extended public key in a descriptor. */
class BIP32PubkeyProvider final : public PubkeyProvider
{
- CExtPubKey m_extkey;
+ // Root xpub, path, and final derivation step type being used, if any
+ CExtPubKey m_root_extkey;
KeyPath m_path;
DeriveType m_derive;
+ // Cache of the parent of the final derived pubkeys.
+ // Primarily useful for situations when no read_cache is provided
+ CExtPubKey m_cached_xpub;
bool GetExtKey(const SigningProvider& arg, CExtKey& ret) const
{
CKey key;
- if (!arg.GetKey(m_extkey.pubkey.GetID(), key)) return false;
- ret.nDepth = m_extkey.nDepth;
- std::copy(m_extkey.vchFingerprint, m_extkey.vchFingerprint + sizeof(ret.vchFingerprint), ret.vchFingerprint);
- ret.nChild = m_extkey.nChild;
- ret.chaincode = m_extkey.chaincode;
+ if (!arg.GetKey(m_root_extkey.pubkey.GetID(), key)) return false;
+ ret.nDepth = m_root_extkey.nDepth;
+ std::copy(m_root_extkey.vchFingerprint, m_root_extkey.vchFingerprint + sizeof(ret.vchFingerprint), ret.vchFingerprint);
+ ret.nChild = m_root_extkey.nChild;
+ ret.chaincode = m_root_extkey.chaincode;
ret.key = key;
return true;
}
+ // Derives the last xprv
+ bool GetDerivedExtKey(const SigningProvider& arg, CExtKey& xprv) const
+ {
+ if (!GetExtKey(arg, xprv)) return false;
+ for (auto entry : m_path) {
+ xprv.Derive(xprv, entry);
+ }
+ return true;
+ }
+
bool IsHardened() const
{
if (m_derive == DeriveType::HARDENED) return true;
@@ -272,37 +298,77 @@ class BIP32PubkeyProvider final : public PubkeyProvider
}
public:
- BIP32PubkeyProvider(const CExtPubKey& extkey, KeyPath path, DeriveType derive) : m_extkey(extkey), m_path(std::move(path)), m_derive(derive) {}
+ BIP32PubkeyProvider(uint32_t exp_index, const CExtPubKey& extkey, KeyPath path, DeriveType derive) : PubkeyProvider(exp_index), m_root_extkey(extkey), m_path(std::move(path)), m_derive(derive) {}
bool IsRange() const override { return m_derive != DeriveType::NO; }
size_t GetSize() const override { return 33; }
- bool GetPubKey(int pos, const SigningProvider& arg, CPubKey* key, KeyOriginInfo& info) const override
+ bool GetPubKey(int pos, const SigningProvider& arg, CPubKey& key_out, KeyOriginInfo& final_info_out, const DescriptorCache* read_cache = nullptr, DescriptorCache* write_cache = nullptr) override
{
- if (key) {
- if (IsHardened()) {
- CKey priv_key;
- if (!GetPrivKey(pos, arg, priv_key)) return false;
- *key = priv_key.GetPubKey();
- } else {
- // TODO: optimize by caching
- CExtPubKey extkey = m_extkey;
- for (auto entry : m_path) {
- extkey.Derive(extkey, entry);
- }
- if (m_derive == DeriveType::UNHARDENED) extkey.Derive(extkey, pos);
- assert(m_derive != DeriveType::HARDENED);
- *key = extkey.pubkey;
+ // Info of parent of the to be derived pubkey
+ KeyOriginInfo parent_info;
+ CKeyID keyid = m_root_extkey.pubkey.GetID();
+ std::copy(keyid.begin(), keyid.begin() + sizeof(parent_info.fingerprint), parent_info.fingerprint);
+ parent_info.path = m_path;
+
+ // Info of the derived key itself which is copied out upon successful completion
+ KeyOriginInfo final_info_out_tmp = parent_info;
+ if (m_derive == DeriveType::UNHARDENED) final_info_out_tmp.path.push_back((uint32_t)pos);
+ if (m_derive == DeriveType::HARDENED) final_info_out_tmp.path.push_back(((uint32_t)pos) | 0x80000000L);
+
+ // Derive keys or fetch them from cache
+ CExtPubKey final_extkey = m_root_extkey;
+ CExtPubKey parent_extkey = m_root_extkey;
+ bool der = true;
+ if (read_cache) {
+ if (!read_cache->GetCachedDerivedExtPubKey(m_expr_index, pos, final_extkey)) {
+ if (m_derive == DeriveType::HARDENED) return false;
+ // Try to get the derivation parent
+ if (!read_cache->GetCachedParentExtPubKey(m_expr_index, parent_extkey)) return false;
+ final_extkey = parent_extkey;
+ if (m_derive == DeriveType::UNHARDENED) der = parent_extkey.Derive(final_extkey, pos);
+ }
+ } else if (m_cached_xpub.pubkey.IsValid() && m_derive != DeriveType::HARDENED) {
+ parent_extkey = final_extkey = m_cached_xpub;
+ if (m_derive == DeriveType::UNHARDENED) der = parent_extkey.Derive(final_extkey, pos);
+ } else if (IsHardened()) {
+ CExtKey xprv;
+ if (!GetDerivedExtKey(arg, xprv)) return false;
+ parent_extkey = xprv.Neuter();
+ if (m_derive == DeriveType::UNHARDENED) der = xprv.Derive(xprv, pos);
+ if (m_derive == DeriveType::HARDENED) der = xprv.Derive(xprv, pos | 0x80000000UL);
+ final_extkey = xprv.Neuter();
+ } else {
+ for (auto entry : m_path) {
+ der = parent_extkey.Derive(parent_extkey, entry);
+ assert(der);
}
+ final_extkey = parent_extkey;
+ if (m_derive == DeriveType::UNHARDENED) der = parent_extkey.Derive(final_extkey, pos);
+ assert(m_derive != DeriveType::HARDENED);
}
- CKeyID keyid = m_extkey.pubkey.GetID();
- std::copy(keyid.begin(), keyid.begin() + sizeof(info.fingerprint), info.fingerprint);
- info.path = m_path;
- if (m_derive == DeriveType::UNHARDENED) info.path.push_back((uint32_t)pos);
- if (m_derive == DeriveType::HARDENED) info.path.push_back(((uint32_t)pos) | 0x80000000L);
+ assert(der);
+
+ final_info_out = final_info_out_tmp;
+ key_out = final_extkey.pubkey;
+
+ // We rely on the consumer to check that m_derive isn't HARDENED as above
+ // But we can't have already cached something in case we read something from the cache
+ // and parent_extkey isn't actually the parent.
+ if (!m_cached_xpub.pubkey.IsValid()) m_cached_xpub = parent_extkey;
+
+ if (write_cache) {
+ // Only cache parent if there is any unhardened derivation
+ if (m_derive != DeriveType::HARDENED) {
+ write_cache->CacheParentExtPubKey(m_expr_index, parent_extkey);
+ } else if (final_info_out.path.size() > 0) {
+ write_cache->CacheDerivedExtPubKey(m_expr_index, pos, final_extkey);
+ }
+ }
+
return true;
}
std::string ToString() const override
{
- std::string ret = EncodeExtPubKey(m_extkey) + FormatHDKeypath(m_path);
+ std::string ret = EncodeExtPubKey(m_root_extkey) + FormatHDKeypath(m_path);
if (IsRange()) {
ret += "/*";
if (m_derive == DeriveType::HARDENED) ret += '\'';
@@ -323,10 +389,7 @@ public:
bool GetPrivKey(int pos, const SigningProvider& arg, CKey& key) const override
{
CExtKey extkey;
- if (!GetExtKey(arg, extkey)) return false;
- for (auto entry : m_path) {
- extkey.Derive(extkey, entry);
- }
+ if (!GetDerivedExtKey(arg, extkey)) return false;
if (m_derive == DeriveType::UNHARDENED) extkey.Derive(extkey, pos);
if (m_derive == DeriveType::HARDENED) extkey.Derive(extkey, pos | 0x80000000UL);
key = extkey.key;
@@ -425,7 +488,7 @@ public:
return ret;
}
- bool ExpandHelper(int pos, const SigningProvider& arg, Span<const unsigned char>* cache_read, std::vector<CScript>& output_scripts, FlatSigningProvider& out, std::vector<unsigned char>* cache_write) const
+ bool ExpandHelper(int pos, const SigningProvider& arg, const DescriptorCache* read_cache, std::vector<CScript>& output_scripts, FlatSigningProvider& out, DescriptorCache* write_cache) const
{
std::vector<std::pair<CPubKey, KeyOriginInfo>> entries;
entries.reserve(m_pubkey_args.size());
@@ -433,27 +496,12 @@ public:
// Construct temporary data in `entries` and `subscripts`, to avoid producing output in case of failure.
for (const auto& p : m_pubkey_args) {
entries.emplace_back();
- // If we have a cache, we don't need GetPubKey to compute the public key.
- // Pass in nullptr to signify only origin info is desired.
- if (!p->GetPubKey(pos, arg, cache_read ? nullptr : &entries.back().first, entries.back().second)) return false;
- if (cache_read) {
- // Cached expanded public key exists, use it.
- if (cache_read->size() == 0) return false;
- bool compressed = ((*cache_read)[0] == 0x02 || (*cache_read)[0] == 0x03) && cache_read->size() >= 33;
- bool uncompressed = ((*cache_read)[0] == 0x04) && cache_read->size() >= 65;
- if (!(compressed || uncompressed)) return false;
- CPubKey pubkey(cache_read->begin(), cache_read->begin() + (compressed ? 33 : 65));
- entries.back().first = pubkey;
- *cache_read = cache_read->subspan(compressed ? 33 : 65);
- }
- if (cache_write) {
- cache_write->insert(cache_write->end(), entries.back().first.begin(), entries.back().first.end());
- }
+ if (!p->GetPubKey(pos, arg, entries.back().first, entries.back().second, read_cache, write_cache)) return false;
}
std::vector<CScript> subscripts;
if (m_subdescriptor_arg) {
FlatSigningProvider subprovider;
- if (!m_subdescriptor_arg->ExpandHelper(pos, arg, cache_read, subscripts, subprovider, cache_write)) return false;
+ if (!m_subdescriptor_arg->ExpandHelper(pos, arg, read_cache, subscripts, subprovider, write_cache)) return false;
out = Merge(out, subprovider);
}
@@ -477,15 +525,14 @@ public:
return true;
}
- bool Expand(int pos, const SigningProvider& provider, std::vector<CScript>& output_scripts, FlatSigningProvider& out, std::vector<unsigned char>* cache = nullptr) const final
+ bool Expand(int pos, const SigningProvider& provider, std::vector<CScript>& output_scripts, FlatSigningProvider& out, DescriptorCache* write_cache = nullptr) const final
{
- return ExpandHelper(pos, provider, nullptr, output_scripts, out, cache);
+ return ExpandHelper(pos, provider, nullptr, output_scripts, out, write_cache);
}
- bool ExpandFromCache(int pos, const std::vector<unsigned char>& cache, std::vector<CScript>& output_scripts, FlatSigningProvider& out) const final
+ bool ExpandFromCache(int pos, const DescriptorCache& read_cache, std::vector<CScript>& output_scripts, FlatSigningProvider& out) const final
{
- Span<const unsigned char> span = MakeSpan(cache);
- return ExpandHelper(pos, DUMMY_SIGNING_PROVIDER, &span, output_scripts, out, nullptr) && span.size() == 0;
+ return ExpandHelper(pos, DUMMY_SIGNING_PROVIDER, &read_cache, output_scripts, out, nullptr);
}
void ExpandPrivate(int pos, const SigningProvider& provider, FlatSigningProvider& out) const final
@@ -698,7 +745,7 @@ NODISCARD bool ParseKeyPath(const std::vector<Span<const char>>& split, KeyPath&
}
/** Parse a public key that excludes origin information. */
-std::unique_ptr<PubkeyProvider> ParsePubkeyInner(const Span<const char>& sp, bool permit_uncompressed, FlatSigningProvider& out, std::string& error)
+std::unique_ptr<PubkeyProvider> ParsePubkeyInner(uint32_t key_exp_index, const Span<const char>& sp, bool permit_uncompressed, FlatSigningProvider& out, std::string& error)
{
using namespace spanparsing;
@@ -714,7 +761,7 @@ std::unique_ptr<PubkeyProvider> ParsePubkeyInner(const Span<const char>& sp, boo
CPubKey pubkey(data);
if (pubkey.IsFullyValid()) {
if (permit_uncompressed || pubkey.IsCompressed()) {
- return MakeUnique<ConstPubkeyProvider>(pubkey);
+ return MakeUnique<ConstPubkeyProvider>(key_exp_index, pubkey);
} else {
error = "Uncompressed keys are not allowed";
return nullptr;
@@ -728,7 +775,7 @@ std::unique_ptr<PubkeyProvider> ParsePubkeyInner(const Span<const char>& sp, boo
if (permit_uncompressed || key.IsCompressed()) {
CPubKey pubkey = key.GetPubKey();
out.keys.emplace(pubkey.GetID(), key);
- return MakeUnique<ConstPubkeyProvider>(pubkey);
+ return MakeUnique<ConstPubkeyProvider>(key_exp_index, pubkey);
} else {
error = "Uncompressed keys are not allowed";
return nullptr;
@@ -755,11 +802,11 @@ std::unique_ptr<PubkeyProvider> ParsePubkeyInner(const Span<const char>& sp, boo
extpubkey = extkey.Neuter();
out.keys.emplace(extpubkey.pubkey.GetID(), extkey.key);
}
- return MakeUnique<BIP32PubkeyProvider>(extpubkey, std::move(path), type);
+ return MakeUnique<BIP32PubkeyProvider>(key_exp_index, extpubkey, std::move(path), type);
}
/** Parse a public key including origin information (if enabled). */
-std::unique_ptr<PubkeyProvider> ParsePubkey(const Span<const char>& sp, bool permit_uncompressed, FlatSigningProvider& out, std::string& error)
+std::unique_ptr<PubkeyProvider> ParsePubkey(uint32_t key_exp_index, const Span<const char>& sp, bool permit_uncompressed, FlatSigningProvider& out, std::string& error)
{
using namespace spanparsing;
@@ -768,7 +815,7 @@ std::unique_ptr<PubkeyProvider> ParsePubkey(const Span<const char>& sp, bool per
error = "Multiple ']' characters found for a single pubkey";
return nullptr;
}
- if (origin_split.size() == 1) return ParsePubkeyInner(origin_split[0], permit_uncompressed, out, error);
+ if (origin_split.size() == 1) return ParsePubkeyInner(key_exp_index, origin_split[0], permit_uncompressed, out, error);
if (origin_split[0].size() < 1 || origin_split[0][0] != '[') {
error = strprintf("Key origin start '[ character expected but not found, got '%c' instead", origin_split[0][0]);
return nullptr;
@@ -789,30 +836,30 @@ std::unique_ptr<PubkeyProvider> ParsePubkey(const Span<const char>& sp, bool per
assert(fpr_bytes.size() == 4);
std::copy(fpr_bytes.begin(), fpr_bytes.end(), info.fingerprint);
if (!ParseKeyPath(slash_split, info.path, error)) return nullptr;
- auto provider = ParsePubkeyInner(origin_split[1], permit_uncompressed, out, error);
+ auto provider = ParsePubkeyInner(key_exp_index, origin_split[1], permit_uncompressed, out, error);
if (!provider) return nullptr;
- return MakeUnique<OriginPubkeyProvider>(std::move(info), std::move(provider));
+ return MakeUnique<OriginPubkeyProvider>(key_exp_index, std::move(info), std::move(provider));
}
/** Parse a script in a particular context. */
-std::unique_ptr<DescriptorImpl> ParseScript(Span<const char>& sp, ParseScriptContext ctx, FlatSigningProvider& out, std::string& error)
+std::unique_ptr<DescriptorImpl> ParseScript(uint32_t key_exp_index, Span<const char>& sp, ParseScriptContext ctx, FlatSigningProvider& out, std::string& error)
{
using namespace spanparsing;
auto expr = Expr(sp);
bool sorted_multi = false;
if (Func("pk", expr)) {
- auto pubkey = ParsePubkey(expr, ctx != ParseScriptContext::P2WSH, out, error);
+ auto pubkey = ParsePubkey(key_exp_index, expr, ctx != ParseScriptContext::P2WSH, out, error);
if (!pubkey) return nullptr;
return MakeUnique<PKDescriptor>(std::move(pubkey));
}
if (Func("pkh", expr)) {
- auto pubkey = ParsePubkey(expr, ctx != ParseScriptContext::P2WSH, out, error);
+ auto pubkey = ParsePubkey(key_exp_index, expr, ctx != ParseScriptContext::P2WSH, out, error);
if (!pubkey) return nullptr;
return MakeUnique<PKHDescriptor>(std::move(pubkey));
}
if (ctx == ParseScriptContext::TOP && Func("combo", expr)) {
- auto pubkey = ParsePubkey(expr, true, out, error);
+ auto pubkey = ParsePubkey(key_exp_index, expr, true, out, error);
if (!pubkey) return nullptr;
return MakeUnique<ComboDescriptor>(std::move(pubkey));
} else if (ctx != ParseScriptContext::TOP && Func("combo", expr)) {
@@ -834,10 +881,11 @@ std::unique_ptr<DescriptorImpl> ParseScript(Span<const char>& sp, ParseScriptCon
return nullptr;
}
auto arg = Expr(expr);
- auto pk = ParsePubkey(arg, ctx != ParseScriptContext::P2WSH, out, error);
+ auto pk = ParsePubkey(key_exp_index, arg, ctx != ParseScriptContext::P2WSH, out, error);
if (!pk) return nullptr;
script_size += pk->GetSize() + 1;
providers.emplace_back(std::move(pk));
+ key_exp_index++;
}
if (providers.size() < 1 || providers.size() > 16) {
error = strprintf("Cannot have %u keys in multisig; must have between 1 and 16 keys, inclusive", providers.size());
@@ -864,7 +912,7 @@ std::unique_ptr<DescriptorImpl> ParseScript(Span<const char>& sp, ParseScriptCon
return MakeUnique<MultisigDescriptor>(thres, std::move(providers), sorted_multi);
}
if (ctx != ParseScriptContext::P2WSH && Func("wpkh", expr)) {
- auto pubkey = ParsePubkey(expr, false, out, error);
+ auto pubkey = ParsePubkey(key_exp_index, expr, false, out, error);
if (!pubkey) return nullptr;
return MakeUnique<WPKHDescriptor>(std::move(pubkey));
} else if (ctx == ParseScriptContext::P2WSH && Func("wpkh", expr)) {
@@ -872,7 +920,7 @@ std::unique_ptr<DescriptorImpl> ParseScript(Span<const char>& sp, ParseScriptCon
return nullptr;
}
if (ctx == ParseScriptContext::TOP && Func("sh", expr)) {
- auto desc = ParseScript(expr, ParseScriptContext::P2SH, out, error);
+ auto desc = ParseScript(key_exp_index, expr, ParseScriptContext::P2SH, out, error);
if (!desc || expr.size()) return nullptr;
return MakeUnique<SHDescriptor>(std::move(desc));
} else if (ctx != ParseScriptContext::TOP && Func("sh", expr)) {
@@ -880,7 +928,7 @@ std::unique_ptr<DescriptorImpl> ParseScript(Span<const char>& sp, ParseScriptCon
return nullptr;
}
if (ctx != ParseScriptContext::P2WSH && Func("wsh", expr)) {
- auto desc = ParseScript(expr, ParseScriptContext::P2WSH, out, error);
+ auto desc = ParseScript(key_exp_index, expr, ParseScriptContext::P2WSH, out, error);
if (!desc || expr.size()) return nullptr;
return MakeUnique<WSHDescriptor>(std::move(desc));
} else if (ctx == ParseScriptContext::P2WSH && Func("wsh", expr)) {
@@ -917,10 +965,10 @@ std::unique_ptr<DescriptorImpl> ParseScript(Span<const char>& sp, ParseScriptCon
std::unique_ptr<PubkeyProvider> InferPubkey(const CPubKey& pubkey, ParseScriptContext, const SigningProvider& provider)
{
- std::unique_ptr<PubkeyProvider> key_provider = MakeUnique<ConstPubkeyProvider>(pubkey);
+ std::unique_ptr<PubkeyProvider> key_provider = MakeUnique<ConstPubkeyProvider>(0, pubkey);
KeyOriginInfo info;
if (provider.GetKeyOrigin(pubkey.GetID(), info)) {
- return MakeUnique<OriginPubkeyProvider>(std::move(info), std::move(key_provider));
+ return MakeUnique<OriginPubkeyProvider>(0, std::move(info), std::move(key_provider));
}
return key_provider;
}
@@ -1032,7 +1080,7 @@ std::unique_ptr<Descriptor> Parse(const std::string& descriptor, FlatSigningProv
{
Span<const char> sp(descriptor.data(), descriptor.size());
if (!CheckChecksum(sp, require_checksum, error)) return nullptr;
- auto ret = ParseScript(sp, ParseScriptContext::TOP, out, error);
+ auto ret = ParseScript(0, sp, ParseScriptContext::TOP, out, error);
if (sp.size() == 0 && ret) return std::unique_ptr<Descriptor>(std::move(ret));
return nullptr;
}
@@ -1050,3 +1098,42 @@ std::unique_ptr<Descriptor> InferDescriptor(const CScript& script, const Signing
{
return InferScript(script, ParseScriptContext::TOP, provider);
}
+
+void DescriptorCache::CacheParentExtPubKey(uint32_t key_exp_pos, const CExtPubKey& xpub)
+{
+ m_parent_xpubs[key_exp_pos] = xpub;
+}
+
+void DescriptorCache::CacheDerivedExtPubKey(uint32_t key_exp_pos, uint32_t der_index, const CExtPubKey& xpub)
+{
+ auto& xpubs = m_derived_xpubs[key_exp_pos];
+ xpubs[der_index] = xpub;
+}
+
+bool DescriptorCache::GetCachedParentExtPubKey(uint32_t key_exp_pos, CExtPubKey& xpub) const
+{
+ const auto& it = m_parent_xpubs.find(key_exp_pos);
+ if (it == m_parent_xpubs.end()) return false;
+ xpub = it->second;
+ return true;
+}
+
+bool DescriptorCache::GetCachedDerivedExtPubKey(uint32_t key_exp_pos, uint32_t der_index, CExtPubKey& xpub) const
+{
+ const auto& key_exp_it = m_derived_xpubs.find(key_exp_pos);
+ if (key_exp_it == m_derived_xpubs.end()) return false;
+ const auto& der_it = key_exp_it->second.find(der_index);
+ if (der_it == key_exp_it->second.end()) return false;
+ xpub = der_it->second;
+ return true;
+}
+
+const ExtPubKeyMap DescriptorCache::GetCachedParentExtPubKeys() const
+{
+ return m_parent_xpubs;
+}
+
+const std::unordered_map<uint32_t, ExtPubKeyMap> DescriptorCache::GetCachedDerivedExtPubKeys() const
+{
+ return m_derived_xpubs;
+}
diff --git a/src/script/descriptor.h b/src/script/descriptor.h
index 58b920c681..34cd5760de 100644
--- a/src/script/descriptor.h
+++ b/src/script/descriptor.h
@@ -13,6 +13,49 @@
#include <vector>
+using ExtPubKeyMap = std::unordered_map<uint32_t, CExtPubKey>;
+
+/** Cache for single descriptor's derived extended pubkeys */
+class DescriptorCache {
+private:
+ /** Map key expression index -> map of (key derivation index -> xpub) */
+ std::unordered_map<uint32_t, ExtPubKeyMap> m_derived_xpubs;
+ /** Map key expression index -> parent xpub */
+ ExtPubKeyMap m_parent_xpubs;
+
+public:
+ /** Cache a parent xpub
+ *
+ * @param[in] key_exp_pos Position of the key expression within the descriptor
+ * @param[in] xpub The CExtPubKey to cache
+ */
+ void CacheParentExtPubKey(uint32_t key_exp_pos, const CExtPubKey& xpub);
+ /** Retrieve a cached parent xpub
+ *
+ * @param[in] key_exp_pos Position of the key expression within the descriptor
+ * @param[in] xpub The CExtPubKey to get from cache
+ */
+ bool GetCachedParentExtPubKey(uint32_t key_exp_pos, CExtPubKey& xpub) const;
+ /** Cache an xpub derived at an index
+ *
+ * @param[in] key_exp_pos Position of the key expression within the descriptor
+ * @param[in] der_index Derivation index of the xpub
+ * @param[in] xpub The CExtPubKey to cache
+ */
+ void CacheDerivedExtPubKey(uint32_t key_exp_pos, uint32_t der_index, const CExtPubKey& xpub);
+ /** Retrieve a cached xpub derived at an index
+ *
+ * @param[in] key_exp_pos Position of the key expression within the descriptor
+ * @param[in] der_index Derivation index of the xpub
+ * @param[in] xpub The CExtPubKey to get from cache
+ */
+ bool GetCachedDerivedExtPubKey(uint32_t key_exp_pos, uint32_t der_index, CExtPubKey& xpub) const;
+
+ /** Retrieve all cached parent xpubs */
+ const ExtPubKeyMap GetCachedParentExtPubKeys() const;
+ /** Retrieve all cached derived xpubs */
+ const std::unordered_map<uint32_t, ExtPubKeyMap> GetCachedDerivedExtPubKeys() const;
+};
/** \brief Interface for parsed descriptor objects.
*
@@ -53,18 +96,18 @@ struct Descriptor {
* @param[in] provider The provider to query for private keys in case of hardened derivation.
* @param[out] output_scripts The expanded scriptPubKeys.
* @param[out] out Scripts and public keys necessary for solving the expanded scriptPubKeys (may be equal to `provider`).
- * @param[out] cache Cache data necessary to evaluate the descriptor at this point without access to private keys.
+ * @param[out] write_cache Cache data necessary to evaluate the descriptor at this point without access to private keys.
*/
- virtual bool Expand(int pos, const SigningProvider& provider, std::vector<CScript>& output_scripts, FlatSigningProvider& out, std::vector<unsigned char>* cache = nullptr) const = 0;
+ virtual bool Expand(int pos, const SigningProvider& provider, std::vector<CScript>& output_scripts, FlatSigningProvider& out, DescriptorCache* write_cache = nullptr) const = 0;
/** Expand a descriptor at a specified position using cached expansion data.
*
* @param[in] pos The position at which to expand the descriptor. If IsRange() is false, this is ignored.
- * @param[in] cache Cached expansion data.
+ * @param[in] read_cache Cached expansion data.
* @param[out] output_scripts The expanded scriptPubKeys.
* @param[out] out Scripts and public keys necessary for solving the expanded scriptPubKeys (may be equal to `provider`).
*/
- virtual bool ExpandFromCache(int pos, const std::vector<unsigned char>& cache, std::vector<CScript>& output_scripts, FlatSigningProvider& out) const = 0;
+ virtual bool ExpandFromCache(int pos, const DescriptorCache& read_cache, std::vector<CScript>& output_scripts, FlatSigningProvider& out) const = 0;
/** Expand the private key for a descriptor at a specified position, if possible.
*
diff --git a/src/test/descriptor_tests.cpp b/src/test/descriptor_tests.cpp
index e99aee724e..3154c619d2 100644
--- a/src/test/descriptor_tests.cpp
+++ b/src/test/descriptor_tests.cpp
@@ -29,6 +29,7 @@ constexpr int RANGE = 1; // Expected to be ranged descriptor
constexpr int HARDENED = 2; // Derivation needs access to private keys
constexpr int UNSOLVABLE = 4; // This descriptor is not expected to be solvable
constexpr int SIGNABLE = 8; // We can sign with this descriptor (this is not true when actual BIP32 derivation is used, as that's not integrated in our signing code)
+constexpr int DERIVE_HARDENED = 16; // The final derivation is hardened, i.e. ends with *' or *h
/** Compare two descriptors. If only one of them has a checksum, the checksum is ignored. */
bool EqualDescriptor(std::string a, std::string b)
@@ -135,19 +136,82 @@ void DoCheck(const std::string& prv, const std::string& pub, int flags, const st
// Evaluate the descriptor selected by `t` in poisition `i`.
FlatSigningProvider script_provider, script_provider_cached;
std::vector<CScript> spks, spks_cached;
- std::vector<unsigned char> cache;
- BOOST_CHECK((t ? parse_priv : parse_pub)->Expand(i, key_provider, spks, script_provider, &cache));
+ DescriptorCache desc_cache;
+ BOOST_CHECK((t ? parse_priv : parse_pub)->Expand(i, key_provider, spks, script_provider, &desc_cache));
// Compare the output with the expected result.
BOOST_CHECK_EQUAL(spks.size(), ref.size());
// Try to expand again using cached data, and compare.
- BOOST_CHECK(parse_pub->ExpandFromCache(i, cache, spks_cached, script_provider_cached));
+ BOOST_CHECK(parse_pub->ExpandFromCache(i, desc_cache, spks_cached, script_provider_cached));
BOOST_CHECK(spks == spks_cached);
BOOST_CHECK(script_provider.pubkeys == script_provider_cached.pubkeys);
BOOST_CHECK(script_provider.scripts == script_provider_cached.scripts);
BOOST_CHECK(script_provider.origins == script_provider_cached.origins);
+ // Check whether keys are in the cache
+ const auto& der_xpub_cache = desc_cache.GetCachedDerivedExtPubKeys();
+ const auto& parent_xpub_cache = desc_cache.GetCachedParentExtPubKeys();
+ if ((flags & RANGE) && !(flags & DERIVE_HARDENED)) {
+ // For ranged, unhardened derivation, None of the keys in origins should appear in the cache but the cache should have parent keys
+ // But we can derive one level from each of those parent keys and find them all
+ BOOST_CHECK(der_xpub_cache.empty());
+ BOOST_CHECK(parent_xpub_cache.size() > 0);
+ std::set<CPubKey> pubkeys;
+ for (const auto& xpub_pair : parent_xpub_cache) {
+ const CExtPubKey& xpub = xpub_pair.second;
+ CExtPubKey der;
+ xpub.Derive(der, i);
+ pubkeys.insert(der.pubkey);
+ }
+ for (const auto& origin_pair : script_provider_cached.origins) {
+ const CPubKey& pk = origin_pair.second.first;
+ BOOST_CHECK(pubkeys.count(pk) > 0);
+ }
+ } else if (pub1.find("xpub") != std::string::npos) {
+ // For ranged, hardened derivation, or not ranged, but has an xpub, all of the keys should appear in the cache
+ BOOST_CHECK(der_xpub_cache.size() + parent_xpub_cache.size() == script_provider_cached.origins.size());
+ // Get all of the derived pubkeys
+ std::set<CPubKey> pubkeys;
+ for (const auto& xpub_map_pair : der_xpub_cache) {
+ for (const auto& xpub_pair : xpub_map_pair.second) {
+ const CExtPubKey& xpub = xpub_pair.second;
+ pubkeys.insert(xpub.pubkey);
+ }
+ }
+ // Derive one level from all of the parents
+ for (const auto& xpub_pair : parent_xpub_cache) {
+ const CExtPubKey& xpub = xpub_pair.second;
+ pubkeys.insert(xpub.pubkey);
+ CExtPubKey der;
+ xpub.Derive(der, i);
+ pubkeys.insert(der.pubkey);
+ }
+ for (const auto& origin_pair : script_provider_cached.origins) {
+ const CPubKey& pk = origin_pair.second.first;
+ BOOST_CHECK(pubkeys.count(pk) > 0);
+ }
+ } else {
+ // No xpub, nothing should be cached
+ BOOST_CHECK(der_xpub_cache.empty());
+ BOOST_CHECK(parent_xpub_cache.empty());
+ }
+
+ // Make sure we can expand using cached xpubs for unhardened derivation
+ if (!(flags & DERIVE_HARDENED)) {
+ // Evaluate the descriptor at i + 1
+ FlatSigningProvider script_provider1, script_provider_cached1;
+ std::vector<CScript> spks1, spk1_from_cache;
+ BOOST_CHECK((t ? parse_priv : parse_pub)->Expand(i + 1, key_provider, spks1, script_provider1, nullptr));
+
+ // Try again but use the cache from expanding i. That cache won't have the pubkeys for i + 1, but will have the parent xpub for derivation.
+ BOOST_CHECK(parse_pub->ExpandFromCache(i + 1, desc_cache, spk1_from_cache, script_provider_cached1));
+ BOOST_CHECK(spks1 == spk1_from_cache);
+ BOOST_CHECK(script_provider1.pubkeys == script_provider_cached1.pubkeys);
+ BOOST_CHECK(script_provider1.scripts == script_provider_cached1.scripts);
+ BOOST_CHECK(script_provider1.origins == script_provider_cached1.origins);
+ }
+
// For each of the produced scripts, verify solvability, and when possible, try to sign a transaction spending it.
for (size_t n = 0; n < spks.size(); ++n) {
BOOST_CHECK_EQUAL(ref[n], HexStr(spks[n].begin(), spks[n].end()));
@@ -248,7 +312,7 @@ BOOST_AUTO_TEST_CASE(descriptor_test)
Check("pk(xprv9uPDJpEQgRQfDcW7BkF7eTya6RPxXeJCqCJGHuCJ4GiRVLzkTXBAJMu2qaMWPrS7AANYqdq6vcBcBUdJCVVFceUvJFjaPdGZ2y9WACViL4L/0)", "pk(xpub68NZiKmJWnxxS6aaHmn81bvJeTESw724CRDs6HbuccFQN9Ku14VQrADWgqbhhTHBaohPX4CjNLf9fq9MYo6oDaPPLPxSb7gwQN3ih19Zm4Y/0)", DEFAULT, {{"210379e45b3cf75f9c5f9befd8e9506fb962f6a9d185ac87001ec44a8d3df8d4a9e3ac"}}, nullopt, {{0}});
Check("pkh(xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/2147483647'/0)", "pkh(xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB/2147483647'/0)", HARDENED, {{"76a914ebdc90806a9c4356c1c88e42216611e1cb4c1c1788ac"}}, OutputType::LEGACY, {{0xFFFFFFFFUL,0}});
Check("wpkh([ffffffff/13']xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt/1/2/*)", "wpkh([ffffffff/13']xpub69H7F5d8KSRgmmdJg2KhpAK8SR3DjMwAdkxj3ZuxV27CprR9LgpeyGmXUbC6wb7ERfvrnKZjXoUmmDznezpbZb7ap6r1D3tgFxHmwMkQTPH/1/2/*)", RANGE, {{"0014326b2249e3a25d5dc60935f044ee835d090ba859"},{"0014af0bd98abc2f2cae66e36896a39ffe2d32984fb7"},{"00141fa798efd1cbf95cebf912c031b8a4a6e9fb9f27"}}, OutputType::BECH32, {{0x8000000DUL, 1, 2, 0}, {0x8000000DUL, 1, 2, 1}, {0x8000000DUL, 1, 2, 2}});
- Check("sh(wpkh(xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi/10/20/30/40/*'))", "sh(wpkh(xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8/10/20/30/40/*'))", RANGE | HARDENED, {{"a9149a4d9901d6af519b2a23d4a2f51650fcba87ce7b87"},{"a914bed59fc0024fae941d6e20a3b44a109ae740129287"},{"a9148483aa1116eb9c05c482a72bada4b1db24af654387"}}, OutputType::P2SH_SEGWIT, {{10, 20, 30, 40, 0x80000000UL}, {10, 20, 30, 40, 0x80000001UL}, {10, 20, 30, 40, 0x80000002UL}});
+ Check("sh(wpkh(xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi/10/20/30/40/*'))", "sh(wpkh(xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8/10/20/30/40/*'))", RANGE | HARDENED | DERIVE_HARDENED, {{"a9149a4d9901d6af519b2a23d4a2f51650fcba87ce7b87"},{"a914bed59fc0024fae941d6e20a3b44a109ae740129287"},{"a9148483aa1116eb9c05c482a72bada4b1db24af654387"}}, OutputType::P2SH_SEGWIT, {{10, 20, 30, 40, 0x80000000UL}, {10, 20, 30, 40, 0x80000001UL}, {10, 20, 30, 40, 0x80000002UL}});
Check("combo(xprvA2JDeKCSNNZky6uBCviVfJSKyQ1mDYahRjijr5idH2WwLsEd4Hsb2Tyh8RfQMuPh7f7RtyzTtdrbdqqsunu5Mm3wDvUAKRHSC34sJ7in334/*)", "combo(xpub6FHa3pjLCk84BayeJxFW2SP4XRrFd1JYnxeLeU8EqN3vDfZmbqBqaGJAyiLjTAwm6ZLRQUMv1ZACTj37sR62cfN7fe5JnJ7dh8zL4fiyLHV/*)", RANGE, {{"2102df12b7035bdac8e3bab862a3a83d06ea6b17b6753d52edecba9be46f5d09e076ac","76a914f90e3178ca25f2c808dc76624032d352fdbdfaf288ac","0014f90e3178ca25f2c808dc76624032d352fdbdfaf2","a91408f3ea8c68d4a7585bf9e8bda226723f70e445f087"},{"21032869a233c9adff9a994e4966e5b821fd5bac066da6c3112488dc52383b4a98ecac","76a914a8409d1b6dfb1ed2a3e8aa5e0ef2ff26b15b75b788ac","0014a8409d1b6dfb1ed2a3e8aa5e0ef2ff26b15b75b7","a91473e39884cb71ae4e5ac9739e9225026c99763e6687"}}, nullopt, {{0}, {1}});
CheckUnparsable("combo([012345678]xprvA1RpRA33e1JQ7ifknakTFpgNXPmW2YvmhqLQYMmrj4xJXXWYpDPS3xz7iAxn8L39njGVyuoseXzU6rcxFLJ8HFsTjSyQbLYnMpCqE2VbFWc)", "combo([012345678]xpub6ERApfZwUNrhLCkDtcHTcxd75RbzS1ed54G1LkBUHQVHQKqhMkhgbmJbZRkrgZw4koxb5JaHWkY4ALHY2grBGRjaDMzQLcgJvLJuZZvRcEL)", "Fingerprint is not 4 bytes (9 characters instead of 8 characters)"); // Too long key fingerprint
CheckUnparsable("pkh(xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/2147483648)", "pkh(xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB/2147483648)", "Key path value 2147483648 is out of range"); // BIP 32 path element overflow
@@ -260,7 +324,7 @@ BOOST_AUTO_TEST_CASE(descriptor_test)
Check("sortedmulti(1,5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss,L4rK1yDtCWekvXuE6oXD9jCYfFNV2cWRpVuPLBcCU2z8TrisoyY1)", "sortedmulti(1,04a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd5b8dec5235a0fa8722476c7709c02559e3aa73aa03918ba2d492eea75abea235,03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd)", SIGNABLE, {{"512103a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd4104a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd5b8dec5235a0fa8722476c7709c02559e3aa73aa03918ba2d492eea75abea23552ae"}}, nullopt);
Check("sh(multi(2,[00000000/111'/222]xprvA1RpRA33e1JQ7ifknakTFpgNXPmW2YvmhqLQYMmrj4xJXXWYpDPS3xz7iAxn8L39njGVyuoseXzU6rcxFLJ8HFsTjSyQbLYnMpCqE2VbFWc,xprv9uPDJpEQgRQfDcW7BkF7eTya6RPxXeJCqCJGHuCJ4GiRVLzkTXBAJMu2qaMWPrS7AANYqdq6vcBcBUdJCVVFceUvJFjaPdGZ2y9WACViL4L/0))", "sh(multi(2,[00000000/111'/222]xpub6ERApfZwUNrhLCkDtcHTcxd75RbzS1ed54G1LkBUHQVHQKqhMkhgbmJbZRkrgZw4koxb5JaHWkY4ALHY2grBGRjaDMzQLcgJvLJuZZvRcEL,xpub68NZiKmJWnxxS6aaHmn81bvJeTESw724CRDs6HbuccFQN9Ku14VQrADWgqbhhTHBaohPX4CjNLf9fq9MYo6oDaPPLPxSb7gwQN3ih19Zm4Y/0))", DEFAULT, {{"a91445a9a622a8b0a1269944be477640eedc447bbd8487"}}, OutputType::LEGACY, {{0x8000006FUL,222},{0}});
Check("sortedmulti(2,xprvA1RpRA33e1JQ7ifknakTFpgNXPmW2YvmhqLQYMmrj4xJXXWYpDPS3xz7iAxn8L39njGVyuoseXzU6rcxFLJ8HFsTjSyQbLYnMpCqE2VbFWc/*,xprv9uPDJpEQgRQfDcW7BkF7eTya6RPxXeJCqCJGHuCJ4GiRVLzkTXBAJMu2qaMWPrS7AANYqdq6vcBcBUdJCVVFceUvJFjaPdGZ2y9WACViL4L/0/0/*)", "sortedmulti(2,xpub6ERApfZwUNrhLCkDtcHTcxd75RbzS1ed54G1LkBUHQVHQKqhMkhgbmJbZRkrgZw4koxb5JaHWkY4ALHY2grBGRjaDMzQLcgJvLJuZZvRcEL/*,xpub68NZiKmJWnxxS6aaHmn81bvJeTESw724CRDs6HbuccFQN9Ku14VQrADWgqbhhTHBaohPX4CjNLf9fq9MYo6oDaPPLPxSb7gwQN3ih19Zm4Y/0/0/*)", RANGE, {{"5221025d5fc65ebb8d44a5274b53bac21ff8307fec2334a32df05553459f8b1f7fe1b62102fbd47cc8034098f0e6a94c6aeee8528abf0a2153a5d8e46d325b7284c046784652ae"}, {"52210264fd4d1f5dea8ded94c61e9641309349b62f27fbffe807291f664e286bfbe6472103f4ece6dfccfa37b211eb3d0af4d0c61dba9ef698622dc17eecdf764beeb005a652ae"}, {"5221022ccabda84c30bad578b13c89eb3b9544ce149787e5b538175b1d1ba259cbb83321024d902e1a2fc7a8755ab5b694c575fce742c48d9ff192e63df5193e4c7afe1f9c52ae"}}, nullopt, {{0}, {1}, {2}, {0, 0, 0}, {0, 0, 1}, {0, 0, 2}});
- Check("wsh(multi(2,xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/2147483647'/0,xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt/1/2/*,xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi/10/20/30/40/*'))", "wsh(multi(2,xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB/2147483647'/0,xpub69H7F5d8KSRgmmdJg2KhpAK8SR3DjMwAdkxj3ZuxV27CprR9LgpeyGmXUbC6wb7ERfvrnKZjXoUmmDznezpbZb7ap6r1D3tgFxHmwMkQTPH/1/2/*,xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8/10/20/30/40/*'))", HARDENED | RANGE, {{"0020b92623201f3bb7c3771d45b2ad1d0351ea8fbf8cfe0a0e570264e1075fa1948f"},{"002036a08bbe4923af41cf4316817c93b8d37e2f635dd25cfff06bd50df6ae7ea203"},{"0020a96e7ab4607ca6b261bfe3245ffda9c746b28d3f59e83d34820ec0e2b36c139c"}}, OutputType::BECH32, {{0xFFFFFFFFUL,0}, {1,2,0}, {1,2,1}, {1,2,2}, {10, 20, 30, 40, 0x80000000UL}, {10, 20, 30, 40, 0x80000001UL}, {10, 20, 30, 40, 0x80000002UL}});
+ Check("wsh(multi(2,xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/2147483647'/0,xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt/1/2/*,xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi/10/20/30/40/*'))", "wsh(multi(2,xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB/2147483647'/0,xpub69H7F5d8KSRgmmdJg2KhpAK8SR3DjMwAdkxj3ZuxV27CprR9LgpeyGmXUbC6wb7ERfvrnKZjXoUmmDznezpbZb7ap6r1D3tgFxHmwMkQTPH/1/2/*,xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8/10/20/30/40/*'))", HARDENED | RANGE | DERIVE_HARDENED, {{"0020b92623201f3bb7c3771d45b2ad1d0351ea8fbf8cfe0a0e570264e1075fa1948f"},{"002036a08bbe4923af41cf4316817c93b8d37e2f635dd25cfff06bd50df6ae7ea203"},{"0020a96e7ab4607ca6b261bfe3245ffda9c746b28d3f59e83d34820ec0e2b36c139c"}}, OutputType::BECH32, {{0xFFFFFFFFUL,0}, {1,2,0}, {1,2,1}, {1,2,2}, {10, 20, 30, 40, 0x80000000UL}, {10, 20, 30, 40, 0x80000001UL}, {10, 20, 30, 40, 0x80000002UL}});
Check("sh(wsh(multi(16,KzoAz5CanayRKex3fSLQ2BwJpN7U52gZvxMyk78nDMHuqrUxuSJy,KwGNz6YCCQtYvFzMtrC6D3tKTKdBBboMrLTsjr2NYVBwapCkn7Mr,KxogYhiNfwxuswvXV66eFyKcCpm7dZ7TqHVqujHAVUjJxyivxQ9X,L2BUNduTSyZwZjwNHynQTF14mv2uz2NRq5n5sYWTb4FkkmqgEE9f,L1okJGHGn1kFjdXHKxXjwVVtmCMR2JA5QsbKCSpSb7ReQjezKeoD,KxDCNSST75HFPaW5QKpzHtAyaCQC7p9Vo3FYfi2u4dXD1vgMiboK,L5edQjFtnkcf5UWURn6UuuoFrabgDQUHdheKCziwN42aLwS3KizU,KzF8UWFcEC7BYTq8Go1xVimMkDmyNYVmXV5PV7RuDicvAocoPB8i,L3nHUboKG2w4VSJ5jYZ5CBM97oeK6YuKvfZxrefdShECcjEYKMWZ,KyjHo36dWkYhimKmVVmQTq3gERv3pnqA4xFCpvUgbGDJad7eS8WE,KwsfyHKRUTZPQtysN7M3tZ4GXTnuov5XRgjdF2XCG8faAPmFruRF,KzCUbGhN9LJhdeFfL9zQgTJMjqxdBKEekRGZX24hXdgCNCijkkap,KzgpMBwwsDLwkaC5UrmBgCYaBD2WgZ7PBoGYXR8KT7gCA9UTN5a3,KyBXTPy4T7YG4q9tcAM3LkvfRpD1ybHMvcJ2ehaWXaSqeGUxEdkP,KzJDe9iwJRPtKP2F2AoN6zBgzS7uiuAwhWCfGdNeYJ3PC1HNJ8M8,L1xbHrxynrqLKkoYc4qtoQPx6uy5qYXR5ZDYVYBSRmCV5piU3JG9)))","sh(wsh(multi(16,03669b8afcec803a0d323e9a17f3ea8e68e8abe5a278020a929adbec52421adbd0,0260b2003c386519fc9eadf2b5cf124dd8eea4c4e68d5e154050a9346ea98ce600,0362a74e399c39ed5593852a30147f2959b56bb827dfa3e60e464b02ccf87dc5e8,0261345b53de74a4d721ef877c255429961b7e43714171ac06168d7e08c542a8b8,02da72e8b46901a65d4374fe6315538d8f368557dda3a1dcf9ea903f3afe7314c8,0318c82dd0b53fd3a932d16e0ba9e278fcc937c582d5781be626ff16e201f72286,0297ccef1ef99f9d73dec9ad37476ddb232f1238aff877af19e72ba04493361009,02e502cfd5c3f972fe9a3e2a18827820638f96b6f347e54d63deb839011fd5765d,03e687710f0e3ebe81c1037074da939d409c0025f17eb86adb9427d28f0f7ae0e9,02c04d3a5274952acdbc76987f3184b346a483d43be40874624b29e3692c1df5af,02ed06e0f418b5b43a7ec01d1d7d27290fa15f75771cb69b642a51471c29c84acd,036d46073cbb9ffee90473f3da429abc8de7f8751199da44485682a989a4bebb24,02f5d1ff7c9029a80a4e36b9a5497027ef7f3e73384a4a94fbfe7c4e9164eec8bc,02e41deffd1b7cce11cde209a781adcffdabd1b91c0ba0375857a2bfd9302419f3,02d76625f7956a7fc505ab02556c23ee72d832f1bac391bcd2d3abce5710a13d06,0399eb0a5487515802dc14544cf10b3666623762fbed2ec38a3975716e2c29c232)))", SIGNABLE, {{"a9147fc63e13dc25e8a95a3cee3d9a714ac3afd96f1e87"}}, OutputType::P2SH_SEGWIT);
CheckUnparsable("sh(multi(16,KzoAz5CanayRKex3fSLQ2BwJpN7U52gZvxMyk78nDMHuqrUxuSJy,KwGNz6YCCQtYvFzMtrC6D3tKTKdBBboMrLTsjr2NYVBwapCkn7Mr,KxogYhiNfwxuswvXV66eFyKcCpm7dZ7TqHVqujHAVUjJxyivxQ9X,L2BUNduTSyZwZjwNHynQTF14mv2uz2NRq5n5sYWTb4FkkmqgEE9f,L1okJGHGn1kFjdXHKxXjwVVtmCMR2JA5QsbKCSpSb7ReQjezKeoD,KxDCNSST75HFPaW5QKpzHtAyaCQC7p9Vo3FYfi2u4dXD1vgMiboK,L5edQjFtnkcf5UWURn6UuuoFrabgDQUHdheKCziwN42aLwS3KizU,KzF8UWFcEC7BYTq8Go1xVimMkDmyNYVmXV5PV7RuDicvAocoPB8i,L3nHUboKG2w4VSJ5jYZ5CBM97oeK6YuKvfZxrefdShECcjEYKMWZ,KyjHo36dWkYhimKmVVmQTq3gERv3pnqA4xFCpvUgbGDJad7eS8WE,KwsfyHKRUTZPQtysN7M3tZ4GXTnuov5XRgjdF2XCG8faAPmFruRF,KzCUbGhN9LJhdeFfL9zQgTJMjqxdBKEekRGZX24hXdgCNCijkkap,KzgpMBwwsDLwkaC5UrmBgCYaBD2WgZ7PBoGYXR8KT7gCA9UTN5a3,KyBXTPy4T7YG4q9tcAM3LkvfRpD1ybHMvcJ2ehaWXaSqeGUxEdkP,KzJDe9iwJRPtKP2F2AoN6zBgzS7uiuAwhWCfGdNeYJ3PC1HNJ8M8,L1xbHrxynrqLKkoYc4qtoQPx6uy5qYXR5ZDYVYBSRmCV5piU3JG9))","sh(multi(16,03669b8afcec803a0d323e9a17f3ea8e68e8abe5a278020a929adbec52421adbd0,0260b2003c386519fc9eadf2b5cf124dd8eea4c4e68d5e154050a9346ea98ce600,0362a74e399c39ed5593852a30147f2959b56bb827dfa3e60e464b02ccf87dc5e8,0261345b53de74a4d721ef877c255429961b7e43714171ac06168d7e08c542a8b8,02da72e8b46901a65d4374fe6315538d8f368557dda3a1dcf9ea903f3afe7314c8,0318c82dd0b53fd3a932d16e0ba9e278fcc937c582d5781be626ff16e201f72286,0297ccef1ef99f9d73dec9ad37476ddb232f1238aff877af19e72ba04493361009,02e502cfd5c3f972fe9a3e2a18827820638f96b6f347e54d63deb839011fd5765d,03e687710f0e3ebe81c1037074da939d409c0025f17eb86adb9427d28f0f7ae0e9,02c04d3a5274952acdbc76987f3184b346a483d43be40874624b29e3692c1df5af,02ed06e0f418b5b43a7ec01d1d7d27290fa15f75771cb69b642a51471c29c84acd,036d46073cbb9ffee90473f3da429abc8de7f8751199da44485682a989a4bebb24,02f5d1ff7c9029a80a4e36b9a5497027ef7f3e73384a4a94fbfe7c4e9164eec8bc,02e41deffd1b7cce11cde209a781adcffdabd1b91c0ba0375857a2bfd9302419f3,02d76625f7956a7fc505ab02556c23ee72d832f1bac391bcd2d3abce5710a13d06,0399eb0a5487515802dc14544cf10b3666623762fbed2ec38a3975716e2c29c232))", "P2SH script is too large, 547 bytes is larger than 520 bytes"); // P2SH does not fit 16 compressed pubkeys in a redeemscript
CheckUnparsable("wsh(multi(2,[aaaaaaaa][aaaaaaaa]xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/2147483647'/0,xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt/1/2/*,xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi/10/20/30/40/*'))", "wsh(multi(2,[aaaaaaaa][aaaaaaaa]xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB/2147483647'/0,xpub69H7F5d8KSRgmmdJg2KhpAK8SR3DjMwAdkxj3ZuxV27CprR9LgpeyGmXUbC6wb7ERfvrnKZjXoUmmDznezpbZb7ap6r1D3tgFxHmwMkQTPH/1/2/*,xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8/10/20/30/40/*'))", "Multiple ']' characters found for a single pubkey"); // Double key origin descriptor
generated by cgit v1.2.3 (git 2.26.2) at 2024-09-18 17:34:36 +0000