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wallet2: read multisig restore fields with memcpy in generate

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This commit is contained in:
alhudz
2026-06-16 00:19:33 +05:30
parent f7e7d1da68
commit 6ad3dc08f7
1 changed files with 17 additions and 8 deletions
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src/wallet/wallet2.cpp
+17 -8
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@@ -5641,9 +5641,10 @@ void wallet2::generate(const std::string& wallet_, const epee::wipeable_string&
THROW_WALLET_EXCEPTION_IF(multisig_data.size() < 32, error::invalid_multisig_seed); THROW_WALLET_EXCEPTION_IF(multisig_data.size() < 32, error::invalid_multisig_seed);
size_t offset = 0; size_t offset = 0;
uint32_t threshold = *(uint32_t*)(multisig_data.data() + offset); uint32_t threshold, total;
memcpy(&threshold, multisig_data.data() + offset, sizeof(uint32_t));
offset += sizeof(uint32_t); offset += sizeof(uint32_t);
uint32_t total = *(uint32_t*)(multisig_data.data() + offset); memcpy(&total, multisig_data.data() + offset, sizeof(uint32_t));
offset += sizeof(uint32_t); offset += sizeof(uint32_t);
THROW_WALLET_EXCEPTION_IF(threshold < 1, error::invalid_multisig_seed); THROW_WALLET_EXCEPTION_IF(threshold < 1, error::invalid_multisig_seed);
@@ -5654,22 +5655,30 @@ void wallet2::generate(const std::string& wallet_, const epee::wipeable_string&
std::vector<crypto::secret_key> multisig_keys; std::vector<crypto::secret_key> multisig_keys;
std::vector<crypto::public_key> multisig_signers; std::vector<crypto::public_key> multisig_signers;
crypto::secret_key spend_secret_key = *(crypto::secret_key*)(multisig_data.data() + offset); crypto::secret_key spend_secret_key;
memcpy(&unwrap(unwrap(spend_secret_key)), multisig_data.data() + offset, sizeof(crypto::secret_key));
offset += sizeof(crypto::secret_key); offset += sizeof(crypto::secret_key);
crypto::public_key spend_public_key = *(crypto::public_key*)(multisig_data.data() + offset); crypto::public_key spend_public_key;
memcpy(&spend_public_key, multisig_data.data() + offset, sizeof(crypto::public_key));
offset += sizeof(crypto::public_key); offset += sizeof(crypto::public_key);
crypto::secret_key view_secret_key = *(crypto::secret_key*)(multisig_data.data() + offset); crypto::secret_key view_secret_key;
memcpy(&unwrap(unwrap(view_secret_key)), multisig_data.data() + offset, sizeof(crypto::secret_key));
offset += sizeof(crypto::secret_key); offset += sizeof(crypto::secret_key);
crypto::public_key view_public_key = *(crypto::public_key*)(multisig_data.data() + offset); crypto::public_key view_public_key;
memcpy(&view_public_key, multisig_data.data() + offset, sizeof(crypto::public_key));
offset += sizeof(crypto::public_key); offset += sizeof(crypto::public_key);
for (size_t n = 0; n < n_multisig_keys; ++n) for (size_t n = 0; n < n_multisig_keys; ++n)
{ {
multisig_keys.push_back(*(crypto::secret_key*)(multisig_data.data() + offset)); crypto::secret_key multisig_key;
memcpy(&unwrap(unwrap(multisig_key)), multisig_data.data() + offset, sizeof(crypto::secret_key));
multisig_keys.push_back(multisig_key);
offset += sizeof(crypto::secret_key); offset += sizeof(crypto::secret_key);
} }
for (size_t n = 0; n < total; ++n) for (size_t n = 0; n < total; ++n)
{ {
multisig_signers.push_back(*(crypto::public_key*)(multisig_data.data() + offset)); crypto::public_key signer;
memcpy(&signer, multisig_data.data() + offset, sizeof(crypto::public_key));
multisig_signers.push_back(signer);
offset += sizeof(crypto::public_key); offset += sizeof(crypto::public_key);
} }