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path: root/src/multisig/multisig_kex_msg.cpp
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Diffstat (limited to 'src/multisig/multisig_kex_msg.cpp')
-rw-r--r--src/multisig/multisig_kex_msg.cpp9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/multisig/multisig_kex_msg.cpp b/src/multisig/multisig_kex_msg.cpp
index 49350948a..321305283 100644
--- a/src/multisig/multisig_kex_msg.cpp
+++ b/src/multisig/multisig_kex_msg.cpp
@@ -206,8 +206,13 @@ namespace multisig
//----------------------------------------------------------------------------------------------------------------------
void multisig_kex_msg::parse_and_validate_msg()
{
+ CHECK_AND_ASSERT_THROW_MES(MULTISIG_KEX_MSG_V2_MAGIC_1.size() == MULTISIG_KEX_MSG_V2_MAGIC_N.size(),
+ "Multisig kex msg magic inconsistency.");
+ CHECK_AND_ASSERT_THROW_MES(MULTISIG_KEX_MSG_V2_MAGIC_1.size() >= MULTISIG_KEX_V1_MAGIC.size(),
+ "Multisig kex msg magic inconsistency.");
+
// check message type
- CHECK_AND_ASSERT_THROW_MES(m_msg.size() > 0, "Kex message unexpectedly empty.");
+ CHECK_AND_ASSERT_THROW_MES(m_msg.size() >= MULTISIG_KEX_MSG_V2_MAGIC_1.size(), "Kex message unexpectedly small.");
CHECK_AND_ASSERT_THROW_MES(m_msg.substr(0, MULTISIG_KEX_V1_MAGIC.size()) != MULTISIG_KEX_V1_MAGIC,
"V1 multisig kex messages are deprecated (unsafe).");
CHECK_AND_ASSERT_THROW_MES(m_msg.substr(0, MULTISIG_KEX_MSG_V1_MAGIC.size()) != MULTISIG_KEX_MSG_V1_MAGIC,
@@ -215,8 +220,6 @@ namespace multisig
// deserialize the message
std::string msg_no_magic;
- CHECK_AND_ASSERT_THROW_MES(MULTISIG_KEX_MSG_V2_MAGIC_1.size() == MULTISIG_KEX_MSG_V2_MAGIC_N.size(),
- "Multisig kex msg magic inconsistency.");
CHECK_AND_ASSERT_THROW_MES(tools::base58::decode(m_msg.substr(MULTISIG_KEX_MSG_V2_MAGIC_1.size()), msg_no_magic),
"Multisig kex msg decoding error.");
binary_archive<false> b_archive{epee::strspan<std::uint8_t>(msg_no_magic)};