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-rw-r--r--src/cryptonote_basic/cryptonote_basic.h25
-rw-r--r--src/cryptonote_basic/cryptonote_format_utils.cpp62
-rw-r--r--src/cryptonote_basic/cryptonote_format_utils.h6
3 files changed, 67 insertions, 26 deletions
diff --git a/src/cryptonote_basic/cryptonote_basic.h b/src/cryptonote_basic/cryptonote_basic.h
index c9c783a56..172a99e84 100644
--- a/src/cryptonote_basic/cryptonote_basic.h
+++ b/src/cryptonote_basic/cryptonote_basic.h
@@ -152,6 +152,10 @@ namespace cryptonote
};
+ template<typename T> static inline unsigned int getpos(T &ar) { return 0; }
+ template<> inline unsigned int getpos(binary_archive<true> &ar) { return ar.stream().tellp(); }
+ template<> inline unsigned int getpos(binary_archive<false> &ar) { return ar.stream().tellg(); }
+
class transaction_prefix
{
@@ -203,9 +207,12 @@ namespace cryptonote
bool pruned;
+ std::atomic<unsigned int> unprunable_size;
+ std::atomic<unsigned int> prefix_size;
+
transaction();
- transaction(const transaction &t): transaction_prefix(t), hash_valid(false), blob_size_valid(false), signatures(t.signatures), rct_signatures(t.rct_signatures), pruned(t.pruned) { if (t.is_hash_valid()) { hash = t.hash; set_hash_valid(true); } if (t.is_blob_size_valid()) { blob_size = t.blob_size; set_blob_size_valid(true); } }
- transaction &operator=(const transaction &t) { transaction_prefix::operator=(t); set_hash_valid(false); set_blob_size_valid(false); signatures = t.signatures; rct_signatures = t.rct_signatures; if (t.is_hash_valid()) { hash = t.hash; set_hash_valid(true); } if (t.is_blob_size_valid()) { blob_size = t.blob_size; set_blob_size_valid(true); } pruned = t.pruned; return *this; }
+ transaction(const transaction &t): transaction_prefix(t), hash_valid(false), blob_size_valid(false), signatures(t.signatures), rct_signatures(t.rct_signatures), pruned(t.pruned), unprunable_size(t.unprunable_size.load()), prefix_size(t.prefix_size.load()) { if (t.is_hash_valid()) { hash = t.hash; set_hash_valid(true); } if (t.is_blob_size_valid()) { blob_size = t.blob_size; set_blob_size_valid(true); } }
+ transaction &operator=(const transaction &t) { transaction_prefix::operator=(t); set_hash_valid(false); set_blob_size_valid(false); signatures = t.signatures; rct_signatures = t.rct_signatures; if (t.is_hash_valid()) { hash = t.hash; set_hash_valid(true); } if (t.is_blob_size_valid()) { blob_size = t.blob_size; set_blob_size_valid(true); } pruned = t.pruned; unprunable_size = t.unprunable_size.load(); prefix_size = t.prefix_size.load(); return *this; }
virtual ~transaction();
void set_null();
void invalidate_hashes();
@@ -223,10 +230,18 @@ namespace cryptonote
set_blob_size_valid(false);
}
+ const unsigned int start_pos = getpos(ar);
+
FIELDS(*static_cast<transaction_prefix *>(this))
+ if (std::is_same<Archive<W>, binary_archive<W>>())
+ prefix_size = getpos(ar) - start_pos;
+
if (version == 1)
{
+ if (std::is_same<Archive<W>, binary_archive<W>>())
+ unprunable_size = getpos(ar) - start_pos;
+
ar.tag("signatures");
ar.begin_array();
PREPARE_CUSTOM_VECTOR_SERIALIZATION(vin.size(), signatures);
@@ -265,6 +280,10 @@ namespace cryptonote
bool r = rct_signatures.serialize_rctsig_base(ar, vin.size(), vout.size());
if (!r || !ar.stream().good()) return false;
ar.end_object();
+
+ if (std::is_same<Archive<W>, binary_archive<W>>())
+ unprunable_size = getpos(ar) - start_pos;
+
if (!pruned && rct_signatures.type != rct::RCTTypeNull)
{
ar.tag("rctsig_prunable");
@@ -329,6 +348,8 @@ namespace cryptonote
set_hash_valid(false);
set_blob_size_valid(false);
pruned = false;
+ unprunable_size = 0;
+ prefix_size = 0;
}
inline
diff --git a/src/cryptonote_basic/cryptonote_format_utils.cpp b/src/cryptonote_basic/cryptonote_format_utils.cpp
index 10fb5444c..85c5131f6 100644
--- a/src/cryptonote_basic/cryptonote_format_utils.cpp
+++ b/src/cryptonote_basic/cryptonote_format_utils.cpp
@@ -878,6 +878,11 @@ namespace cryptonote
return true;
}
//---------------------------------------------------------------
+ void get_blob_hash(const epee::span<const char>& blob, crypto::hash& res)
+ {
+ cn_fast_hash(blob.data(), blob.size(), res);
+ }
+ //---------------------------------------------------------------
void get_blob_hash(const blobdata& blob, crypto::hash& res)
{
cn_fast_hash(blob.data(), blob.size(), res);
@@ -946,6 +951,13 @@ namespace cryptonote
return h;
}
//---------------------------------------------------------------
+ crypto::hash get_blob_hash(const epee::span<const char>& blob)
+ {
+ crypto::hash h = null_hash;
+ get_blob_hash(blob, h);
+ return h;
+ }
+ //---------------------------------------------------------------
crypto::hash get_transaction_hash(const transaction& t)
{
crypto::hash h = null_hash;
@@ -958,26 +970,35 @@ namespace cryptonote
return get_transaction_hash(t, res, NULL);
}
//---------------------------------------------------------------
- bool calculate_transaction_prunable_hash(const transaction& t, crypto::hash& res)
+ bool calculate_transaction_prunable_hash(const transaction& t, const cryptonote::blobdata *blob, crypto::hash& res)
{
if (t.version == 1)
return false;
- transaction &tt = const_cast<transaction&>(t);
- std::stringstream ss;
- binary_archive<true> ba(ss);
- const size_t inputs = t.vin.size();
- const size_t outputs = t.vout.size();
- const size_t mixin = t.vin.empty() ? 0 : t.vin[0].type() == typeid(txin_to_key) ? boost::get<txin_to_key>(t.vin[0]).key_offsets.size() - 1 : 0;
- bool r = tt.rct_signatures.p.serialize_rctsig_prunable(ba, t.rct_signatures.type, inputs, outputs, mixin);
- CHECK_AND_ASSERT_MES(r, false, "Failed to serialize rct signatures prunable");
- cryptonote::get_blob_hash(ss.str(), res);
+ const unsigned int unprunable_size = t.unprunable_size;
+ if (blob && unprunable_size)
+ {
+ CHECK_AND_ASSERT_MES(unprunable_size <= blob->size(), false, "Inconsistent transaction unprunable and blob sizes");
+ cryptonote::get_blob_hash(epee::span<const char>(blob->data() + unprunable_size, blob->size() - unprunable_size), res);
+ }
+ else
+ {
+ transaction &tt = const_cast<transaction&>(t);
+ std::stringstream ss;
+ binary_archive<true> ba(ss);
+ const size_t inputs = t.vin.size();
+ const size_t outputs = t.vout.size();
+ const size_t mixin = t.vin.empty() ? 0 : t.vin[0].type() == typeid(txin_to_key) ? boost::get<txin_to_key>(t.vin[0]).key_offsets.size() - 1 : 0;
+ bool r = tt.rct_signatures.p.serialize_rctsig_prunable(ba, t.rct_signatures.type, inputs, outputs, mixin);
+ CHECK_AND_ASSERT_MES(r, false, "Failed to serialize rct signatures prunable");
+ cryptonote::get_blob_hash(ss.str(), res);
+ }
return true;
}
//---------------------------------------------------------------
- crypto::hash get_transaction_prunable_hash(const transaction& t)
+ crypto::hash get_transaction_prunable_hash(const transaction& t, const cryptonote::blobdata *blobdata)
{
crypto::hash res;
- CHECK_AND_ASSERT_THROW_MES(calculate_transaction_prunable_hash(t, res), "Failed to calculate tx prunable hash");
+ CHECK_AND_ASSERT_THROW_MES(calculate_transaction_prunable_hash(t, blobdata, res), "Failed to calculate tx prunable hash");
return res;
}
//---------------------------------------------------------------
@@ -1030,16 +1051,13 @@ namespace cryptonote
transaction &tt = const_cast<transaction&>(t);
+ const blobdata blob = tx_to_blob(t);
+ const unsigned int unprunable_size = t.unprunable_size;
+ const unsigned int prefix_size = t.prefix_size;
+
// base rct
- {
- std::stringstream ss;
- binary_archive<true> ba(ss);
- const size_t inputs = t.vin.size();
- const size_t outputs = t.vout.size();
- bool r = tt.rct_signatures.serialize_rctsig_base(ba, inputs, outputs);
- CHECK_AND_ASSERT_MES(r, false, "Failed to serialize rct signatures base");
- cryptonote::get_blob_hash(ss.str(), hashes[1]);
- }
+ CHECK_AND_ASSERT_MES(prefix_size <= unprunable_size && unprunable_size <= blob.size(), false, "Inconsistent transaction prefix, unprunable and blob sizes");
+ cryptonote::get_blob_hash(epee::span<const char>(blob.data() + prefix_size, unprunable_size - prefix_size), hashes[1]);
// prunable rct
if (t.rct_signatures.type == rct::RCTTypeNull)
@@ -1048,7 +1066,7 @@ namespace cryptonote
}
else
{
- CHECK_AND_ASSERT_MES(calculate_transaction_prunable_hash(t, hashes[2]), false, "Failed to get tx prunable hash");
+ CHECK_AND_ASSERT_MES(calculate_transaction_prunable_hash(t, &blob, hashes[2]), false, "Failed to get tx prunable hash");
}
// the tx hash is the hash of the 3 hashes
diff --git a/src/cryptonote_basic/cryptonote_format_utils.h b/src/cryptonote_basic/cryptonote_format_utils.h
index 994978c10..4247e13da 100644
--- a/src/cryptonote_basic/cryptonote_format_utils.h
+++ b/src/cryptonote_basic/cryptonote_format_utils.h
@@ -98,15 +98,17 @@ namespace cryptonote
bool generate_key_image_helper(const account_keys& ack, const std::unordered_map<crypto::public_key, subaddress_index>& subaddresses, const crypto::public_key& out_key, const crypto::public_key& tx_public_key, const std::vector<crypto::public_key>& additional_tx_public_keys, size_t real_output_index, keypair& in_ephemeral, crypto::key_image& ki, hw::device &hwdev);
bool generate_key_image_helper_precomp(const account_keys& ack, const crypto::public_key& out_key, const crypto::key_derivation& recv_derivation, size_t real_output_index, const subaddress_index& received_index, keypair& in_ephemeral, crypto::key_image& ki, hw::device &hwdev);
void get_blob_hash(const blobdata& blob, crypto::hash& res);
+ void get_blob_hash(const epee::span<const char>& blob, crypto::hash& res);
crypto::hash get_blob_hash(const blobdata& blob);
+ crypto::hash get_blob_hash(const epee::span<const char>& blob);
std::string short_hash_str(const crypto::hash& h);
crypto::hash get_transaction_hash(const transaction& t);
bool get_transaction_hash(const transaction& t, crypto::hash& res);
bool get_transaction_hash(const transaction& t, crypto::hash& res, size_t& blob_size);
bool get_transaction_hash(const transaction& t, crypto::hash& res, size_t* blob_size);
- bool calculate_transaction_prunable_hash(const transaction& t, crypto::hash& res);
- crypto::hash get_transaction_prunable_hash(const transaction& t);
+ bool calculate_transaction_prunable_hash(const transaction& t, const cryptonote::blobdata *blob, crypto::hash& res);
+ crypto::hash get_transaction_prunable_hash(const transaction& t, const cryptonote::blobdata *blob = NULL);
bool calculate_transaction_hash(const transaction& t, crypto::hash& res, size_t* blob_size);
crypto::hash get_pruned_transaction_hash(const transaction& t, const crypto::hash &pruned_data_hash);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 05:22:17 +0000