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-rw-r--r--src/blockchain_db/blockchain_db.cpp9
-rw-r--r--src/crypto/keccak.c95
-rw-r--r--src/cryptonote_basic/cryptonote_format_utils.cpp2
-rw-r--r--src/cryptonote_config.h2
-rw-r--r--src/cryptonote_core/blockchain.cpp24
-rw-r--r--src/multisig/multisig_account.cpp47
-rw-r--r--src/multisig/multisig_account.h24
-rw-r--r--src/multisig/multisig_account_kex_impl.cpp331
-rw-r--r--src/ringct/rctSigs.cpp19
-rw-r--r--src/rpc/core_rpc_server.cpp2
-rw-r--r--src/simplewallet/simplewallet.cpp79
-rw-r--r--src/simplewallet/simplewallet.h1
-rw-r--r--src/wallet/api/wallet2_api.h1
-rw-r--r--src/wallet/wallet2.cpp17
-rw-r--r--src/wallet/wallet_rpc_server.cpp3
15 files changed, 372 insertions, 284 deletions
diff --git a/src/blockchain_db/blockchain_db.cpp b/src/blockchain_db/blockchain_db.cpp
index 44be08003..ab73e255c 100644
--- a/src/blockchain_db/blockchain_db.cpp
+++ b/src/blockchain_db/blockchain_db.cpp
@@ -241,15 +241,8 @@ void BlockchainDB::add_transaction(const crypto::hash& blk_hash, const std::pair
}
else
{
- rct::key commitment;
- if (tx.version > 1)
- {
- commitment = tx.rct_signatures.outPk[i].mask;
- if (rct::is_rct_bulletproof_plus(tx.rct_signatures.type))
- commitment = rct::scalarmult8(commitment);
- }
amount_output_indices[i] = add_output(tx_hash, tx.vout[i], i, tx.unlock_time,
- tx.version > 1 ? &commitment : NULL);
+ tx.version > 1 ? &tx.rct_signatures.outPk[i].mask : NULL);
}
}
add_tx_amount_output_indices(tx_id, amount_output_indices);
diff --git a/src/crypto/keccak.c b/src/crypto/keccak.c
index 72d472d8a..f098cbdf0 100644
--- a/src/crypto/keccak.c
+++ b/src/crypto/keccak.c
@@ -31,54 +31,83 @@ const uint64_t keccakf_rndc[24] =
0x8000000000008080, 0x0000000080000001, 0x8000000080008008
};
-const int keccakf_rotc[24] =
-{
- 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 2, 14,
- 27, 41, 56, 8, 25, 43, 62, 18, 39, 61, 20, 44
-};
-
-const int keccakf_piln[24] =
-{
- 10, 7, 11, 17, 18, 3, 5, 16, 8, 21, 24, 4,
- 15, 23, 19, 13, 12, 2, 20, 14, 22, 9, 6, 1
-};
-
// update the state with given number of rounds
void keccakf(uint64_t st[25], int rounds)
{
- int i, j, round;
+ int round;
uint64_t t, bc[5];
- for (round = 0; round < rounds; round++) {
-
+ for (round = 0; round < rounds; ++round) {
// Theta
- for (i = 0; i < 5; i++)
- bc[i] = st[i] ^ st[i + 5] ^ st[i + 10] ^ st[i + 15] ^ st[i + 20];
-
- for (i = 0; i < 5; i++) {
- t = bc[(i + 4) % 5] ^ ROTL64(bc[(i + 1) % 5], 1);
- for (j = 0; j < 25; j += 5)
- st[j + i] ^= t;
+ bc[0] = st[0] ^ st[5] ^ st[10] ^ st[15] ^ st[20];
+ bc[1] = st[1] ^ st[6] ^ st[11] ^ st[16] ^ st[21];
+ bc[2] = st[2] ^ st[7] ^ st[12] ^ st[17] ^ st[22];
+ bc[3] = st[3] ^ st[8] ^ st[13] ^ st[18] ^ st[23];
+ bc[4] = st[4] ^ st[9] ^ st[14] ^ st[19] ^ st[24];
+
+#define THETA(i) { \
+ t = bc[(i + 4) % 5] ^ ROTL64(bc[(i + 1) % 5], 1); \
+ st[i ] ^= t; \
+ st[i + 5] ^= t; \
+ st[i + 10] ^= t; \
+ st[i + 15] ^= t; \
+ st[i + 20] ^= t; \
}
+ THETA(0);
+ THETA(1);
+ THETA(2);
+ THETA(3);
+ THETA(4);
+
// Rho Pi
t = st[1];
- for (i = 0; i < 24; i++) {
- j = keccakf_piln[i];
- bc[0] = st[j];
- st[j] = ROTL64(t, keccakf_rotc[i]);
- t = bc[0];
- }
+ st[ 1] = ROTL64(st[ 6], 44);
+ st[ 6] = ROTL64(st[ 9], 20);
+ st[ 9] = ROTL64(st[22], 61);
+ st[22] = ROTL64(st[14], 39);
+ st[14] = ROTL64(st[20], 18);
+ st[20] = ROTL64(st[ 2], 62);
+ st[ 2] = ROTL64(st[12], 43);
+ st[12] = ROTL64(st[13], 25);
+ st[13] = ROTL64(st[19], 8);
+ st[19] = ROTL64(st[23], 56);
+ st[23] = ROTL64(st[15], 41);
+ st[15] = ROTL64(st[ 4], 27);
+ st[ 4] = ROTL64(st[24], 14);
+ st[24] = ROTL64(st[21], 2);
+ st[21] = ROTL64(st[ 8], 55);
+ st[ 8] = ROTL64(st[16], 45);
+ st[16] = ROTL64(st[ 5], 36);
+ st[ 5] = ROTL64(st[ 3], 28);
+ st[ 3] = ROTL64(st[18], 21);
+ st[18] = ROTL64(st[17], 15);
+ st[17] = ROTL64(st[11], 10);
+ st[11] = ROTL64(st[ 7], 6);
+ st[ 7] = ROTL64(st[10], 3);
+ st[10] = ROTL64(t, 1);
// Chi
- for (j = 0; j < 25; j += 5) {
- for (i = 0; i < 5; i++)
- bc[i] = st[j + i];
- for (i = 0; i < 5; i++)
- st[j + i] ^= (~bc[(i + 1) % 5]) & bc[(i + 2) % 5];
+#define CHI(j) { \
+ const uint64_t st0 = st[j ]; \
+ const uint64_t st1 = st[j + 1]; \
+ const uint64_t st2 = st[j + 2]; \
+ const uint64_t st3 = st[j + 3]; \
+ const uint64_t st4 = st[j + 4]; \
+ st[j ] ^= ~st1 & st2; \
+ st[j + 1] ^= ~st2 & st3; \
+ st[j + 2] ^= ~st3 & st4; \
+ st[j + 3] ^= ~st4 & st0; \
+ st[j + 4] ^= ~st0 & st1; \
}
+ CHI( 0);
+ CHI( 5);
+ CHI(10);
+ CHI(15);
+ CHI(20);
+
// Iota
st[0] ^= keccakf_rndc[round];
}
diff --git a/src/cryptonote_basic/cryptonote_format_utils.cpp b/src/cryptonote_basic/cryptonote_format_utils.cpp
index 432617a4f..f101f10c5 100644
--- a/src/cryptonote_basic/cryptonote_format_utils.cpp
+++ b/src/cryptonote_basic/cryptonote_format_utils.cpp
@@ -190,7 +190,7 @@ namespace cryptonote
CHECK_AND_ASSERT_MES(n_amounts == rv.outPk.size(), false, "Internal error filling out V");
rv.p.bulletproofs_plus[0].V.resize(n_amounts);
for (size_t i = 0; i < n_amounts; ++i)
- rv.p.bulletproofs_plus[0].V[i] = rv.outPk[i].mask;
+ rv.p.bulletproofs_plus[0].V[i] = rct::scalarmultKey(rv.outPk[i].mask, rct::INV_EIGHT);
}
else if (bulletproof)
{
diff --git a/src/cryptonote_config.h b/src/cryptonote_config.h
index 88316fd6a..f2a8e9b79 100644
--- a/src/cryptonote_config.h
+++ b/src/cryptonote_config.h
@@ -126,6 +126,7 @@
#define COMMAND_RPC_GET_BLOCKS_FAST_MAX_BLOCK_COUNT 1000
#define COMMAND_RPC_GET_BLOCKS_FAST_MAX_TX_COUNT 20000
+#define MAX_RPC_CONTENT_LENGTH 1048576 // 1 MB
#define P2P_LOCAL_WHITE_PEERLIST_LIMIT 1000
#define P2P_LOCAL_GRAY_PEERLIST_LIMIT 5000
@@ -169,6 +170,7 @@
#define HF_VERSION_MIN_MIXIN_4 6
#define HF_VERSION_MIN_MIXIN_6 7
#define HF_VERSION_MIN_MIXIN_10 8
+#define HF_VERSION_MIN_MIXIN_15 15
#define HF_VERSION_ENFORCE_RCT 6
#define HF_VERSION_PER_BYTE_FEE 8
#define HF_VERSION_SMALLER_BP 10
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index 0b6a3abf3..5b7b4353d 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -3321,7 +3321,7 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
size_t n_unmixable = 0, n_mixable = 0;
size_t min_actual_mixin = std::numeric_limits<size_t>::max();
size_t max_actual_mixin = 0;
- const size_t min_mixin = hf_version >= HF_VERSION_MIN_MIXIN_10 ? 10 : hf_version >= HF_VERSION_MIN_MIXIN_6 ? 6 : hf_version >= HF_VERSION_MIN_MIXIN_4 ? 4 : 2;
+ const size_t min_mixin = hf_version >= HF_VERSION_MIN_MIXIN_15 ? 15 : hf_version >= HF_VERSION_MIN_MIXIN_10 ? 10 : hf_version >= HF_VERSION_MIN_MIXIN_6 ? 6 : hf_version >= HF_VERSION_MIN_MIXIN_4 ? 4 : 2;
for (const auto& txin : tx.vin)
{
// non txin_to_key inputs will be rejected below
@@ -3364,14 +3364,11 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
}
}
- if (((hf_version == HF_VERSION_MIN_MIXIN_10 || hf_version == HF_VERSION_MIN_MIXIN_10+1) && min_actual_mixin != 10) || (hf_version >= HF_VERSION_MIN_MIXIN_10+2 && min_actual_mixin > 10))
- {
- MERROR_VER("Tx " << get_transaction_hash(tx) << " has invalid ring size (" << (min_actual_mixin + 1) << "), it should be 11");
- tvc.m_low_mixin = true;
- return false;
- }
-
- if (min_actual_mixin < min_mixin)
+ // The only circumstance where ring sizes less than expected are
+ // allowed is when spending unmixable non-RCT outputs in the chain.
+ // Caveat: at HF_VERSION_MIN_MIXIN_15, temporarily allow ring sizes
+ // of 11 to allow a grace period in the transition to larger ring size.
+ if (min_actual_mixin < min_mixin && !(hf_version == HF_VERSION_MIN_MIXIN_15 && min_actual_mixin == 10))
{
if (n_unmixable == 0)
{
@@ -3385,6 +3382,15 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
tvc.m_low_mixin = true;
return false;
}
+ } else if ((hf_version > HF_VERSION_MIN_MIXIN_15 && min_actual_mixin > 15)
+ || (hf_version == HF_VERSION_MIN_MIXIN_15 && min_actual_mixin != 15 && min_actual_mixin != 10) // grace period to allow either 15 or 10
+ || (hf_version < HF_VERSION_MIN_MIXIN_15 && hf_version >= HF_VERSION_MIN_MIXIN_10+2 && min_actual_mixin > 10)
+ || ((hf_version == HF_VERSION_MIN_MIXIN_10 || hf_version == HF_VERSION_MIN_MIXIN_10+1) && min_actual_mixin != 10)
+ )
+ {
+ MERROR_VER("Tx " << get_transaction_hash(tx) << " has invalid ring size (" << (min_actual_mixin + 1) << "), it should be " << (min_mixin + 1));
+ tvc.m_low_mixin = true;
+ return false;
}
// min/max tx version based on HF, and we accept v1 txes if having a non mixable
diff --git a/src/multisig/multisig_account.cpp b/src/multisig/multisig_account.cpp
index b7298c4b6..8bd97cf21 100644
--- a/src/multisig/multisig_account.cpp
+++ b/src/multisig/multisig_account.cpp
@@ -73,7 +73,7 @@ namespace multisig
const crypto::public_key &multisig_pubkey,
const crypto::public_key &common_pubkey,
const std::uint32_t kex_rounds_complete,
- kex_origins_map_t kex_origins_map,
+ multisig_keyset_map_memsafe_t kex_origins_map,
std::string next_round_kex_message) :
m_base_privkey{base_privkey},
m_base_common_privkey{base_common_privkey},
@@ -89,6 +89,20 @@ namespace multisig
CHECK_AND_ASSERT_THROW_MES(crypto::secret_key_to_public_key(m_base_privkey, m_base_pubkey),
"Failed to derive public key");
set_multisig_config(threshold, std::move(signers));
+
+ // kex rounds should not exceed post-kex verification round
+ const std::uint32_t kex_rounds_required{multisig_kex_rounds_required(m_signers.size(), m_threshold)};
+ CHECK_AND_ASSERT_THROW_MES(m_kex_rounds_complete <= kex_rounds_required + 1,
+ "multisig account: tried to reconstruct account, but kex rounds complete counter is invalid.");
+
+ // once an account is done with kex, the 'next kex msg' is always the post-kex verification message
+ // i.e. the multisig account pubkey signed by the signer's privkey AND the common pubkey
+ if (main_kex_rounds_done())
+ {
+ m_next_round_kex_message = multisig_kex_msg{kex_rounds_required + 1,
+ m_base_privkey,
+ std::vector<crypto::public_key>{m_multisig_pubkey, m_common_pubkey}}.get_msg();
+ }
}
//----------------------------------------------------------------------------------------------------------------------
// multisig_account: EXTERNAL
@@ -100,14 +114,24 @@ namespace multisig
//----------------------------------------------------------------------------------------------------------------------
// multisig_account: EXTERNAL
//----------------------------------------------------------------------------------------------------------------------
- bool multisig_account::multisig_is_ready() const
+ bool multisig_account::main_kex_rounds_done() const
{
if (account_is_active())
- return multisig_kex_rounds_required(m_signers.size(), m_threshold) == m_kex_rounds_complete;
+ return m_kex_rounds_complete >= multisig_kex_rounds_required(m_signers.size(), m_threshold);
+ else
+ return false;
+ }
+ //----------------------------------------------------------------------------------------------------------------------
+ // multisig_account: EXTERNAL
+ //----------------------------------------------------------------------------------------------------------------------
+ bool multisig_account::multisig_is_ready() const
+ {
+ if (main_kex_rounds_done())
+ return m_kex_rounds_complete >= multisig_kex_rounds_required(m_signers.size(), m_threshold) + 1;
else
return false;
}
- //----------------------------------------------------------------------------------------------------------------------
+ //----------------------------------------------------------------------------------------------------------------------
// multisig_account: INTERNAL
//----------------------------------------------------------------------------------------------------------------------
void multisig_account::set_multisig_config(const std::size_t threshold, std::vector<crypto::public_key> signers)
@@ -119,10 +143,6 @@ namespace multisig
for (auto signer_it = signers.begin(); signer_it != signers.end(); ++signer_it)
{
- // signers should all be unique
- CHECK_AND_ASSERT_THROW_MES(std::find(signers.begin(), signer_it, *signer_it) == signer_it,
- "multisig account: tried to set signers, but found a duplicate signer unexpectedly.");
-
// signer pubkeys must be in main subgroup, and not identity
CHECK_AND_ASSERT_THROW_MES(rct::isInMainSubgroup(rct::pk2rct(*signer_it)) && !(*signer_it == rct::rct2pk(rct::identity())),
"multisig account: tried to set signers, but a signer pubkey is invalid.");
@@ -133,12 +153,11 @@ namespace multisig
"multisig account: tried to set signers, but did not find the account's base pubkey in signer list.");
// sort signers
- std::sort(signers.begin(), signers.end(),
- [](const crypto::public_key &key1, const crypto::public_key &key2) -> bool
- {
- return memcmp(&key1, &key2, sizeof(crypto::public_key)) < 0;
- }
- );
+ std::sort(signers.begin(), signers.end());
+
+ // signers should all be unique
+ CHECK_AND_ASSERT_THROW_MES(std::adjacent_find(signers.begin(), signers.end()) == signers.end(),
+ "multisig account: tried to set signers, but there are duplicate signers unexpectedly.");
// set
m_threshold = threshold;
diff --git a/src/multisig/multisig_account.h b/src/multisig/multisig_account.h
index b01ae6c88..bb853246a 100644
--- a/src/multisig/multisig_account.h
+++ b/src/multisig/multisig_account.h
@@ -75,12 +75,12 @@ namespace multisig
* - ZtM2: https://web.getmonero.org/library/Zero-to-Monero-2-0-0.pdf Ch. 9, especially Section 9.6.3
* - FROST: https://eprint.iacr.org/2018/417
*/
+ using multisig_keyset_map_memsafe_t =
+ std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>>;
+
class multisig_account final
{
public:
- //member types
- using kex_origins_map_t = std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>>;
-
//constructors
// default constructor
multisig_account() = default;
@@ -105,7 +105,7 @@ namespace multisig
const crypto::public_key &multisig_pubkey,
const crypto::public_key &common_pubkey,
const std::uint32_t kex_rounds_complete,
- kex_origins_map_t kex_origins_map,
+ multisig_keyset_map_memsafe_t kex_origins_map,
std::string next_round_kex_message);
// copy constructor: default
@@ -137,13 +137,15 @@ namespace multisig
// get kex rounds complete
std::uint32_t get_kex_rounds_complete() const { return m_kex_rounds_complete; }
// get kex keys to origins map
- const kex_origins_map_t& get_kex_keys_to_origins_map() const { return m_kex_keys_to_origins_map; }
+ const multisig_keyset_map_memsafe_t& get_kex_keys_to_origins_map() const { return m_kex_keys_to_origins_map; }
// get the kex msg for the next round
const std::string& get_next_kex_round_msg() const { return m_next_round_kex_message; }
//account status functions
// account has been intialized, and the account holder can use the 'common' key
bool account_is_active() const;
+ // account has gone through main kex rounds, only remaining step is to verify all other participants are ready
+ bool main_kex_rounds_done() const;
// account is ready to make multisig signatures
bool multisig_is_ready() const;
@@ -178,21 +180,21 @@ namespace multisig
* - Collect the local signer's shared keys to ignore in incoming messages, build the aggregate ancillary key
* if appropriate.
* param: expanded_msgs - set of multisig kex messages to process
- * param: rounds_required - number of rounds required for kex
+ * param: kex_rounds_required - number of rounds required for kex (not including post-kex verification round)
* outparam: exclude_pubkeys_out - keys held by the local account corresponding to round 'current_round'
* - If 'current_round' is the final round, these are the local account's shares of the final aggregate key.
*/
void initialize_kex_update(const std::vector<multisig_kex_msg> &expanded_msgs,
- const std::uint32_t rounds_required,
+ const std::uint32_t kex_rounds_required,
std::vector<crypto::public_key> &exclude_pubkeys_out);
/**
* brief: finalize_kex_update - Helper for kex_update_impl()
- * param: rounds_required - number of rounds required for kex
+ * param: kex_rounds_required - number of rounds required for kex (not including post-kex verification round)
* param: result_keys_to_origins_map - map between keys for the next round and the other participants they correspond to
* inoutparam: temp_account_inout - account to perform last update steps on
*/
- void finalize_kex_update(const std::uint32_t rounds_required,
- kex_origins_map_t result_keys_to_origins_map);
+ void finalize_kex_update(const std::uint32_t kex_rounds_required,
+ multisig_keyset_map_memsafe_t result_keys_to_origins_map);
//member variables
private:
@@ -226,7 +228,7 @@ namespace multisig
std::uint32_t m_kex_rounds_complete{0};
// this account's pubkeys for the in-progress key exchange round
// - either DH derivations (intermediate rounds), H(derivation)*G (final round), empty (when kex is done)
- kex_origins_map_t m_kex_keys_to_origins_map;
+ multisig_keyset_map_memsafe_t m_kex_keys_to_origins_map;
// the account's message for the in-progress key exchange round
std::string m_next_round_kex_message;
};
diff --git a/src/multisig/multisig_account_kex_impl.cpp b/src/multisig/multisig_account_kex_impl.cpp
index 0a0ca7bdc..2127ee04a 100644
--- a/src/multisig/multisig_account_kex_impl.cpp
+++ b/src/multisig/multisig_account_kex_impl.cpp
@@ -57,6 +57,30 @@ namespace multisig
/**
* INTERNAL
*
+ * brief: check_multisig_config - validate multisig configuration details
+ * param: round - the round of the message that should be produced
+ * param: threshold - threshold for multisig (M in M-of-N)
+ * param: num_signers - number of participants in multisig (N)
+ */
+ //----------------------------------------------------------------------------------------------------------------------
+ static void check_multisig_config(const std::uint32_t round,
+ const std::uint32_t threshold,
+ const std::uint32_t num_signers)
+ {
+ CHECK_AND_ASSERT_THROW_MES(num_signers > 1, "Must be at least one other multisig signer.");
+ CHECK_AND_ASSERT_THROW_MES(num_signers <= config::MULTISIG_MAX_SIGNERS,
+ "Too many multisig signers specified (limit = 16 to prevent dangerous combinatorial explosion during key exchange).");
+ CHECK_AND_ASSERT_THROW_MES(num_signers >= threshold,
+ "Multisig threshold may not be larger than number of signers.");
+ CHECK_AND_ASSERT_THROW_MES(threshold > 0, "Multisig threshold must be > 0.");
+ CHECK_AND_ASSERT_THROW_MES(round > 0, "Multisig kex round must be > 0.");
+ CHECK_AND_ASSERT_THROW_MES(round <= multisig_kex_rounds_required(num_signers, threshold) + 1,
+ "Trying to process multisig kex for an invalid round.");
+ }
+ //----------------------------------------------------------------------------------------------------------------------
+ /**
+ * INTERNAL
+ *
* brief: calculate_multisig_keypair_from_derivation - wrapper on calculate_multisig_keypair() for an input public key
* Converts an input public key into a crypto private key (type cast, does not change serialization),
* then passes it to get_multisig_blinded_secret_key().
@@ -224,50 +248,23 @@ namespace multisig
/**
* INTERNAL
*
- * brief: multisig_kex_make_next_msg - Construct a kex msg for any round > 1 of multisig key construction.
+ * brief: multisig_kex_make_round_keys - Makes a kex round's keys.
* - Involves DH exchanges with pubkeys provided by other participants.
* - Conserves mapping [pubkey -> DH derivation] : [origin keys of participants that share this secret with you].
* param: base_privkey - account's base private key, for performing DH exchanges and signing messages
- * param: round - the round of the message that should be produced
- * param: threshold - threshold for multisig (M in M-of-N)
- * param: num_signers - number of participants in multisig (N)
* param: pubkey_origins_map - map between pubkeys to produce DH derivations with and identity keys of
* participants who will share each derivation with you
* outparam: derivation_origins_map_out - map between DH derivations (shared secrets) and identity keys
- * - If msg is not for the last round, then these derivations are also stored in the output message
- * so they can be sent to other participants, who will make more DH derivations for the next kex round.
- * - If msg is for the last round, then these derivations won't be sent to other participants.
- * Instead, they are converted to share secrets (i.e. s = H(derivation)) and multiplied by G.
- * The keys s*G are sent to other participants in the message, so they can be used to produce the final
- * multisig key via generate_multisig_spend_public_key().
- * - The values s are the local account's shares of the final multisig key's private key. The caller can
- * compute those values with calculate_multisig_keypair_from_derivation() (or compute them directly).
- * return: multisig kex message for the specified round
*/
//----------------------------------------------------------------------------------------------------------------------
- static multisig_kex_msg multisig_kex_make_next_msg(const crypto::secret_key &base_privkey,
- const std::uint32_t round,
- const std::uint32_t threshold,
- const std::uint32_t num_signers,
- const std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> &pubkey_origins_map,
- std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> &derivation_origins_map_out)
+ static void multisig_kex_make_round_keys(const crypto::secret_key &base_privkey,
+ multisig_keyset_map_memsafe_t pubkey_origins_map,
+ multisig_keyset_map_memsafe_t &derivation_origins_map_out)
{
- CHECK_AND_ASSERT_THROW_MES(num_signers > 1, "Must be at least one other multisig signer.");
- CHECK_AND_ASSERT_THROW_MES(num_signers <= config::MULTISIG_MAX_SIGNERS,
- "Too many multisig signers specified (limit = 16 to prevent dangerous combinatorial explosion during key exchange).");
- CHECK_AND_ASSERT_THROW_MES(num_signers >= threshold,
- "Multisig threshold may not be larger than number of signers.");
- CHECK_AND_ASSERT_THROW_MES(threshold > 0, "Multisig threshold must be > 0.");
- CHECK_AND_ASSERT_THROW_MES(round > 1, "Round for next msg must be > 1.");
- CHECK_AND_ASSERT_THROW_MES(round <= multisig_kex_rounds_required(num_signers, threshold),
- "Trying to make key exchange message for an invalid round.");
-
// make shared secrets with input pubkeys
- std::vector<crypto::public_key> msg_pubkeys;
- msg_pubkeys.reserve(pubkey_origins_map.size());
derivation_origins_map_out.clear();
- for (const auto &pubkey_and_origins : pubkey_origins_map)
+ for (auto &pubkey_and_origins : pubkey_origins_map)
{
// D = 8 * k_base * K_pubkey
// note: must be mul8 (cofactor), otherwise it is possible to leak to a malicious participant if the local
@@ -281,27 +278,29 @@ namespace multisig
rct::scalarmultKey(derivation_rct, rct::pk2rct(pubkey_and_origins.first), rct::sk2rct(base_privkey));
rct::scalarmultKey(derivation_rct, derivation_rct, rct::EIGHT);
- crypto::public_key_memsafe derivation{rct::rct2pk(derivation_rct)};
-
// retain mapping between pubkey's origins and the DH derivation
- // note: if msg for last round, then caller must know how to handle these derivations properly
- derivation_origins_map_out[derivation] = pubkey_and_origins.second;
-
- // if the last round, convert derivations to public keys for the output message
- if (round == multisig_kex_rounds_required(num_signers, threshold))
- {
- // derived_pubkey = H(derivation)*G
- crypto::public_key derived_pubkey;
- calculate_multisig_keypair_from_derivation(derivation, derived_pubkey);
- msg_pubkeys.push_back(derived_pubkey);
- }
- // otherwise, put derivations in message directly, so other signers can in turn create derivations (shared secrets)
- // with them for the next round
- else
- msg_pubkeys.push_back(derivation);
+ // note: if working on last kex round, then caller must know how to handle these derivations properly
+ derivation_origins_map_out[rct::rct2pk(derivation_rct)] = std::move(pubkey_and_origins.second);
}
+ }
+ //----------------------------------------------------------------------------------------------------------------------
+ /**
+ * INTERNAL
+ *
+ * brief: check_messages_round - Check that a set of messages have an expected round number.
+ * param: expanded_msgs - set of multisig kex messages to process
+ * param: expected_round - round number the kex messages should have
+ */
+ //----------------------------------------------------------------------------------------------------------------------
+ static void check_messages_round(const std::vector<multisig_kex_msg> &expanded_msgs,
+ const std::uint32_t expected_round)
+ {
+ CHECK_AND_ASSERT_THROW_MES(expanded_msgs.size() > 0, "At least one input message expected.");
+ const std::uint32_t round{expanded_msgs[0].get_round()};
+ CHECK_AND_ASSERT_THROW_MES(round == expected_round, "Messages don't have the expected kex round number.");
- return multisig_kex_msg{round, base_privkey, std::move(msg_pubkeys)};
+ for (const auto &expanded_msg : expanded_msgs)
+ CHECK_AND_ASSERT_THROW_MES(expanded_msg.get_round() == round, "All messages must have the same kex round number.");
}
//----------------------------------------------------------------------------------------------------------------------
/**
@@ -327,19 +326,19 @@ namespace multisig
static std::uint32_t multisig_kex_msgs_sanitize_pubkeys(const crypto::public_key &own_pubkey,
const std::vector<multisig_kex_msg> &expanded_msgs,
const std::vector<crypto::public_key> &exclude_pubkeys,
- std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> &sanitized_pubkeys_out)
+ multisig_keyset_map_memsafe_t &sanitized_pubkeys_out)
{
+ // all messages should have the same round (redundant sanity check)
CHECK_AND_ASSERT_THROW_MES(expanded_msgs.size() > 0, "At least one input message expected.");
+ const std::uint32_t round{expanded_msgs[0].get_round()};
+ check_messages_round(expanded_msgs, round);
- std::uint32_t round = expanded_msgs[0].get_round();
sanitized_pubkeys_out.clear();
// get all pubkeys from input messages, add them to pubkey:origins map
// - origins = all the signing pubkeys that recommended a given msg pubkey
for (const auto &expanded_msg : expanded_msgs)
{
- CHECK_AND_ASSERT_THROW_MES(expanded_msg.get_round() == round, "All messages must have the same kex round number.");
-
// ignore messages from self
if (expanded_msg.get_signing_pubkey() == own_pubkey)
continue;
@@ -378,7 +377,7 @@ namespace multisig
*
* brief: evaluate_multisig_kex_round_msgs - Evaluate pubkeys from a kex round in order to prepare for the next round.
* - Sanitizes input msgs.
- * - Require uniqueness in: 'signers', 'exclude_pubkeys'.
+ * - Require uniqueness in: 'exclude_pubkeys'.
* - Requires each input pubkey be recommended by 'num_recommendations = expected_round' msg signers.
* - For a final multisig key to be truly 'M-of-N', each of the the private key's components must be
* shared by (N - M + 1) signers.
@@ -388,39 +387,21 @@ namespace multisig
* with the local account.
* - Requires that 'exclude_pubkeys' has [num_signers - 1 CHOOSE (expected_round - 1)] pubkeys.
* - These should be derivations the local account has corresponding to round 'expected_round'.
- * param: base_privkey - multisig account's base private key
+ * param: base_pubkey - multisig account's base public key
* param: expected_round - expected kex round of input messages
- * param: threshold - threshold for multisig (M in M-of-N)
* param: signers - expected participants in multisig kex
* param: expanded_msgs - set of multisig kex messages to process
* param: exclude_pubkeys - derivations held by the local account corresponding to round 'expected_round'
* return: fully sanitized and validated pubkey:origins map for building the account's next kex round message
*/
//----------------------------------------------------------------------------------------------------------------------
- static std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> evaluate_multisig_kex_round_msgs(
+ static multisig_keyset_map_memsafe_t evaluate_multisig_kex_round_msgs(
const crypto::public_key &base_pubkey,
const std::uint32_t expected_round,
- const std::uint32_t threshold,
const std::vector<crypto::public_key> &signers,
const std::vector<multisig_kex_msg> &expanded_msgs,
const std::vector<crypto::public_key> &exclude_pubkeys)
{
- CHECK_AND_ASSERT_THROW_MES(signers.size() > 1, "Must be at least one other multisig signer.");
- CHECK_AND_ASSERT_THROW_MES(signers.size() <= config::MULTISIG_MAX_SIGNERS,
- "Too many multisig signers specified (limit = 16 to prevent dangerous combinatorial explosion during key exchange).");
- CHECK_AND_ASSERT_THROW_MES(signers.size() >= threshold, "Multisig threshold may not be larger than number of signers.");
- CHECK_AND_ASSERT_THROW_MES(threshold > 0, "Multisig threshold must be > 0.");
- CHECK_AND_ASSERT_THROW_MES(expected_round > 0, "Expected round must be > 0.");
- CHECK_AND_ASSERT_THROW_MES(expected_round <= multisig_kex_rounds_required(signers.size(), threshold),
- "Expecting key exchange messages for an invalid round.");
-
- std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> pubkey_origins_map;
-
- // leave early in the last round of 1-of-N, where all signers share a key so the local signer doesn't care about
- // recommendations from other signers
- if (threshold == 1 && expected_round == multisig_kex_rounds_required(signers.size(), threshold))
- return pubkey_origins_map;
-
// exclude_pubkeys should all be unique
for (auto it = exclude_pubkeys.begin(); it != exclude_pubkeys.end(); ++it)
{
@@ -429,7 +410,8 @@ namespace multisig
}
// sanitize input messages
- std::uint32_t round = multisig_kex_msgs_sanitize_pubkeys(base_pubkey, expanded_msgs, exclude_pubkeys, pubkey_origins_map);
+ multisig_keyset_map_memsafe_t pubkey_origins_map;
+ const std::uint32_t round = multisig_kex_msgs_sanitize_pubkeys(base_pubkey, expanded_msgs, exclude_pubkeys, pubkey_origins_map);
CHECK_AND_ASSERT_THROW_MES(round == expected_round,
"Kex messages were for round [" << round << "], but expected round is [" << expected_round << "]");
@@ -486,10 +468,10 @@ namespace multisig
// - Each origin should have a shared key with each group of size 'round - 1'.
// Note: Keys shared with local are ignored to facilitate kex round boosting, where one or more signers may
// have boosted the local signer (implying they didn't have access to the local signer's previous round msg).
- std::uint32_t expected_recommendations_others = n_choose_k_f(signers.size() - 2, round - 1);
+ const std::uint32_t expected_recommendations_others = n_choose_k_f(signers.size() - 2, round - 1);
// local: (N - 1) choose (msg_round_num - 1)
- std::uint32_t expected_recommendations_self = n_choose_k_f(signers.size() - 1, round - 1);
+ const std::uint32_t expected_recommendations_self = n_choose_k_f(signers.size() - 1, round - 1);
// note: expected_recommendations_others would be 0 in the last round of 1-of-N, but we return early for that case
CHECK_AND_ASSERT_THROW_MES(expected_recommendations_self > 0 && expected_recommendations_others > 0,
@@ -517,7 +499,60 @@ namespace multisig
/**
* INTERNAL
*
- * brief: multisig_kex_process_round - Process kex messages for the active kex round.
+ * brief: evaluate_multisig_post_kex_round_msgs - Evaluate messages for the post-kex verification round.
+ * - Sanitizes input msgs.
+ * - Requires that only one pubkey is recommended.
+ * - Requires that all signers (other than self) recommend that one pubkey.
+ * param: base_pubkey - multisig account's base public key
+ * param: expected_round - expected kex round of input messages
+ * param: signers - expected participants in multisig kex
+ * param: expanded_msgs - set of multisig kex messages to process
+ * return: sanitized and validated pubkey:origins map
+ */
+ //----------------------------------------------------------------------------------------------------------------------
+ static multisig_keyset_map_memsafe_t evaluate_multisig_post_kex_round_msgs(
+ const crypto::public_key &base_pubkey,
+ const std::uint32_t expected_round,
+ const std::vector<crypto::public_key> &signers,
+ const std::vector<multisig_kex_msg> &expanded_msgs)
+ {
+ // sanitize input messages
+ const std::vector<crypto::public_key> dummy;
+ multisig_keyset_map_memsafe_t pubkey_origins_map;
+ const std::uint32_t round = multisig_kex_msgs_sanitize_pubkeys(base_pubkey, expanded_msgs, dummy, pubkey_origins_map);
+ CHECK_AND_ASSERT_THROW_MES(round == expected_round,
+ "Kex messages were for round [" << round << "], but expected round is [" << expected_round << "]");
+
+ // evaluate pubkeys collected
+
+ // 1) there should only be two pubkeys
+ CHECK_AND_ASSERT_THROW_MES(pubkey_origins_map.size() == 2,
+ "Multisig post-kex round messages from other signers did not all contain two pubkeys.");
+
+ // 2) both keys should be recommended by the same set of signers
+ CHECK_AND_ASSERT_THROW_MES(pubkey_origins_map.begin()->second == (++(pubkey_origins_map.begin()))->second,
+ "Multisig post-kex round messages from other signers did not all recommend the same pubkey pair.");
+
+ // 3) all signers should be present in the recommendation list
+ auto origins = pubkey_origins_map.begin()->second;
+ origins.insert(base_pubkey); //add self
+
+ CHECK_AND_ASSERT_THROW_MES(origins.size() == signers.size(),
+ "Multisig post-kex round message origins don't line up with multisig signer set.");
+
+ for (const crypto::public_key &signer : signers)
+ {
+ CHECK_AND_ASSERT_THROW_MES(origins.find(signer) != origins.end(),
+ "Could not find an expected signer in multisig post-kex round messages (all signers expected).");
+ }
+
+ return pubkey_origins_map;
+ }
+ //----------------------------------------------------------------------------------------------------------------------
+ /**
+ * INTERNAL
+ *
+ * brief: multisig_kex_process_round_msgs - Process kex messages for the active kex round.
* - A wrapper around evaluate_multisig_kex_round_msgs() -> multisig_kex_make_next_msg().
* - In other words, evaluate the input messages and try to make a message for the next round.
* - Note: Must be called on the final round's msgs to evaluate the final key components
@@ -536,43 +571,62 @@ namespace multisig
* return: multisig kex message for next round, or empty message if 'current_round' is the final round
*/
//----------------------------------------------------------------------------------------------------------------------
- static multisig_kex_msg multisig_kex_process_round(const crypto::secret_key &base_privkey,
+ static void multisig_kex_process_round_msgs(const crypto::secret_key &base_privkey,
const crypto::public_key &base_pubkey,
const std::uint32_t current_round,
const std::uint32_t threshold,
const std::vector<crypto::public_key> &signers,
const std::vector<multisig_kex_msg> &expanded_msgs,
const std::vector<crypto::public_key> &exclude_pubkeys,
- std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> &keys_to_origins_map_out)
+ multisig_keyset_map_memsafe_t &keys_to_origins_map_out)
{
- // evaluate messages
- std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> evaluated_pubkeys =
- evaluate_multisig_kex_round_msgs(base_pubkey, current_round, threshold, signers, expanded_msgs, exclude_pubkeys);
+ check_multisig_config(current_round, threshold, signers.size());
+ const std::uint32_t kex_rounds_required{multisig_kex_rounds_required(signers.size(), threshold)};
- // produce message for next round (if there is one)
- if (current_round < multisig_kex_rounds_required(signers.size(), threshold))
+ // process messages into a [pubkey : {origins}] map
+ multisig_keyset_map_memsafe_t evaluated_pubkeys;
+
+ if (threshold == 1 && current_round == kex_rounds_required)
{
- return multisig_kex_make_next_msg(base_privkey,
- current_round + 1,
- threshold,
- signers.size(),
- evaluated_pubkeys,
- keys_to_origins_map_out);
+ // in the last main kex round of 1-of-N, all signers share a key so the local signer doesn't care about evaluating
+ // recommendations from other signers
}
- else
+ else if (current_round <= kex_rounds_required)
{
- // no more rounds, so collect the key shares recommended by other signers for the final aggregate key
- keys_to_origins_map_out.clear();
- keys_to_origins_map_out = std::move(evaluated_pubkeys);
+ // for normal kex rounds, fully evaluate kex round messages
+ evaluated_pubkeys = evaluate_multisig_kex_round_msgs(base_pubkey,
+ current_round,
+ signers,
+ expanded_msgs,
+ exclude_pubkeys);
+ }
+ else //(current_round == kex_rounds_required + 1)
+ {
+ // for the post-kex verification round, validate the last kex round's messages
+ evaluated_pubkeys = evaluate_multisig_post_kex_round_msgs(base_pubkey,
+ current_round,
+ signers,
+ expanded_msgs);
+ }
- return multisig_kex_msg{};
+ // prepare keys-to-origins map for updating the multisig account
+ if (current_round < kex_rounds_required)
+ {
+ // normal kex round: make new keys
+ multisig_kex_make_round_keys(base_privkey, std::move(evaluated_pubkeys), keys_to_origins_map_out);
+ }
+ else if (current_round >= kex_rounds_required)
+ {
+ // last kex round: collect the key shares recommended by other signers for the final aggregate key
+ // post-kex verification round: save the keys found in input messages
+ keys_to_origins_map_out = std::move(evaluated_pubkeys);
}
}
//----------------------------------------------------------------------------------------------------------------------
// multisig_account: INTERNAL
//----------------------------------------------------------------------------------------------------------------------
void multisig_account::initialize_kex_update(const std::vector<multisig_kex_msg> &expanded_msgs,
- const std::uint32_t rounds_required,
+ const std::uint32_t kex_rounds_required,
std::vector<crypto::public_key> &exclude_pubkeys_out)
{
if (m_kex_rounds_complete == 0)
@@ -605,7 +659,7 @@ namespace multisig
"Failed to derive public key");
// if N-of-N, then the base privkey will be used directly to make the account's share of the final key
- if (rounds_required == 1)
+ if (kex_rounds_required == 1)
{
m_multisig_privkeys.clear();
m_multisig_privkeys.emplace_back(m_base_privkey);
@@ -629,13 +683,29 @@ namespace multisig
//----------------------------------------------------------------------------------------------------------------------
// multisig_account: INTERNAL
//----------------------------------------------------------------------------------------------------------------------
- void multisig_account::finalize_kex_update(const std::uint32_t rounds_required,
- std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> result_keys_to_origins_map)
+ void multisig_account::finalize_kex_update(const std::uint32_t kex_rounds_required,
+ multisig_keyset_map_memsafe_t result_keys_to_origins_map)
{
+ std::vector<crypto::public_key> next_msg_keys;
+
// prepare for next round (or complete the multisig account fully)
- if (rounds_required == m_kex_rounds_complete + 1)
+ if (m_kex_rounds_complete == kex_rounds_required)
+ {
+ // post-kex verification round: check that the multisig pubkey and common pubkey were recommended by other signers
+ CHECK_AND_ASSERT_THROW_MES(result_keys_to_origins_map.count(m_multisig_pubkey) > 0,
+ "Multisig post-kex round: expected multisig pubkey wasn't found in other signers' messages.");
+ CHECK_AND_ASSERT_THROW_MES(result_keys_to_origins_map.count(m_common_pubkey) > 0,
+ "Multisig post-kex round: expected common pubkey wasn't found in other signers' messages.");
+
+ // save keys that should be recommended to other signers
+ // - for convenience, re-recommend the post-kex verification message once an account is complete
+ next_msg_keys.reserve(2);
+ next_msg_keys.push_back(m_multisig_pubkey);
+ next_msg_keys.push_back(m_common_pubkey);
+ }
+ else if (m_kex_rounds_complete + 1 == kex_rounds_required)
{
- // finished (have set of msgs to complete address)
+ // finished with main kex rounds (have set of msgs to complete address)
// when 'completing the final round', result keys are other signers' shares of the final key
std::vector<crypto::public_key> result_keys;
@@ -652,8 +722,14 @@ namespace multisig
// no longer need the account's pubkeys saved for this round (they were only used to build exclude_pubkeys)
// TODO: record [pre-aggregation pubkeys : origins] map for aggregation-style signing
m_kex_keys_to_origins_map.clear();
+
+ // save keys that should be recommended to other signers
+ // - for post-kex verification, recommend the multisig pubkeys to notify other signers that the local signer is done
+ next_msg_keys.reserve(2);
+ next_msg_keys.push_back(m_multisig_pubkey);
+ next_msg_keys.push_back(m_common_pubkey);
}
- else if (rounds_required == m_kex_rounds_complete + 2)
+ else if (m_kex_rounds_complete + 2 == kex_rounds_required)
{
// one more round (must send/receive one more set of kex msgs)
// - at this point, have local signer's pre-aggregation private key shares of the final address
@@ -668,6 +744,7 @@ namespace multisig
m_multisig_privkeys.reserve(result_keys_to_origins_map.size());
m_kex_keys_to_origins_map.clear();
+ next_msg_keys.reserve(result_keys_to_origins_map.size());
for (const auto &derivation_and_origins : result_keys_to_origins_map)
{
@@ -679,37 +756,59 @@ namespace multisig
// save the account's kex key mappings for this round [derived pubkey : other signers who will have the same key]
m_kex_keys_to_origins_map[derived_pubkey] = std::move(derivation_and_origins.second);
+
+ // save keys that should be recommended to other signers
+ // - The keys multisig_key*G are sent to other participants in the message, so they can be used to produce the final
+ // multisig key via generate_multisig_spend_public_key().
+ next_msg_keys.push_back(derived_pubkey);
}
}
- else
+ else //(m_kex_rounds_complete + 3 <= kex_rounds_required)
{
// next round is an 'intermediate' key exchange round, so there is nothing special to do here
- // save the account's kex keys for this round [DH derivation : other signers who will have the same derivation]
+ // save keys that should be recommended to other signers
+ // - Send this round's DH derivations to other participants, who will make more DH derivations for the following round.
+ next_msg_keys.reserve(result_keys_to_origins_map.size());
+
+ for (const auto &derivation_and_origins : result_keys_to_origins_map)
+ next_msg_keys.push_back(derivation_and_origins.first);
+
+ // save the account's kex keys for this round [DH derivation : other signers who should have the same derivation]
m_kex_keys_to_origins_map = std::move(result_keys_to_origins_map);
}
// a full set of msgs has been collected and processed, so the 'round is complete'
++m_kex_rounds_complete;
+
+ // make next round's message (or reproduce the post-kex verification round if kex is complete)
+ m_next_round_kex_message = multisig_kex_msg{
+ (m_kex_rounds_complete > kex_rounds_required ? kex_rounds_required : m_kex_rounds_complete) + 1,
+ m_base_privkey,
+ std::move(next_msg_keys)}.get_msg();
}
//----------------------------------------------------------------------------------------------------------------------
// multisig_account: INTERNAL
//----------------------------------------------------------------------------------------------------------------------
void multisig_account::kex_update_impl(const std::vector<multisig_kex_msg> &expanded_msgs)
{
- CHECK_AND_ASSERT_THROW_MES(expanded_msgs.size() > 0, "No key exchange messages passed in.");
+ // check messages are for the expected kex round
+ check_messages_round(expanded_msgs, m_kex_rounds_complete + 1);
+
+ // check kex round count
+ const std::uint32_t kex_rounds_required{multisig_kex_rounds_required(m_signers.size(), m_threshold)};
- const std::uint32_t rounds_required = multisig_kex_rounds_required(m_signers.size(), m_threshold);
- CHECK_AND_ASSERT_THROW_MES(rounds_required > 0, "Multisig kex rounds required unexpectedly 0.");
+ CHECK_AND_ASSERT_THROW_MES(kex_rounds_required > 0, "Multisig kex rounds required unexpectedly 0.");
+ CHECK_AND_ASSERT_THROW_MES(m_kex_rounds_complete < kex_rounds_required + 1,
+ "Multisig kex has already completed all required rounds (including post-kex verification).");
// initialize account update
std::vector<crypto::public_key> exclude_pubkeys;
- initialize_kex_update(expanded_msgs, rounds_required, exclude_pubkeys);
-
- // evaluate messages and get this account's kex msg for the next round
- std::unordered_map<crypto::public_key_memsafe, std::unordered_set<crypto::public_key>> result_keys_to_origins_map;
+ initialize_kex_update(expanded_msgs, kex_rounds_required, exclude_pubkeys);
- m_next_round_kex_message = multisig_kex_process_round(
+ // process messages into a [pubkey : {origins}] map
+ multisig_keyset_map_memsafe_t result_keys_to_origins_map;
+ multisig_kex_process_round_msgs(
m_base_privkey,
m_base_pubkey,
m_kex_rounds_complete + 1,
@@ -717,10 +816,10 @@ namespace multisig
m_signers,
expanded_msgs,
exclude_pubkeys,
- result_keys_to_origins_map).get_msg();
+ result_keys_to_origins_map);
// finish account update
- finalize_kex_update(rounds_required, std::move(result_keys_to_origins_map));
+ finalize_kex_update(kex_rounds_required, std::move(result_keys_to_origins_map));
}
//----------------------------------------------------------------------------------------------------------------------
} //namespace multisig
diff --git a/src/ringct/rctSigs.cpp b/src/ringct/rctSigs.cpp
index d7883baac..3e85f60ce 100644
--- a/src/ringct/rctSigs.cpp
+++ b/src/ringct/rctSigs.cpp
@@ -1235,10 +1235,7 @@ namespace rct {
}
for (i = 0; i < outamounts.size(); ++i)
{
- if (plus)
- rv.outPk[i].mask = C[i];
- else
- rv.outPk[i].mask = rct::scalarmult8(C[i]);
+ rv.outPk[i].mask = rct::scalarmult8(C[i]);
outSk[i].mask = masks[i];
}
}
@@ -1276,10 +1273,7 @@ namespace rct {
}
for (i = 0; i < batch_size; ++i)
{
- if (plus)
- rv.outPk[i + amounts_proved].mask = C[i];
- else
- rv.outPk[i + amounts_proved].mask = rct::scalarmult8(C[i]);
+ rv.outPk[i + amounts_proved].mask = rct::scalarmult8(C[i]);
outSk[i + amounts_proved].mask = masks[i];
}
amounts_proved += batch_size;
@@ -1486,10 +1480,7 @@ namespace rct {
rct::keyV masks(rv.outPk.size());
for (size_t i = 0; i < rv.outPk.size(); i++) {
- if (bulletproof_plus)
- masks[i] = rct::scalarmult8(rv.outPk[i].mask);
- else
- masks[i] = rv.outPk[i].mask;
+ masks[i] = rv.outPk[i].mask;
}
key sumOutpks = addKeys(masks);
DP(sumOutpks);
@@ -1649,8 +1640,6 @@ namespace rct {
mask = ecdh_info.mask;
key amount = ecdh_info.amount;
key C = rv.outPk[i].mask;
- if (is_rct_bulletproof_plus(rv.type))
- C = scalarmult8(C);
DP("C");
DP(C);
key Ctmp;
@@ -1682,8 +1671,6 @@ namespace rct {
mask = ecdh_info.mask;
key amount = ecdh_info.amount;
key C = rv.outPk[i].mask;
- if (is_rct_bulletproof_plus(rv.type))
- C = scalarmult8(C);
DP("C");
DP(C);
key Ctmp;
diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index bbcfa6168..869040657 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -365,6 +365,8 @@ namespace cryptonote
std::move(rpc_config->access_control_origins), std::move(http_login), std::move(rpc_config->ssl_options)
);
+ m_net_server.get_config_object().m_max_content_length = MAX_RPC_CONTENT_LENGTH;
+
if (store_ssl_key && inited)
{
// new keys were generated, store for next run
diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp
index be6bf6388..d3e40ab74 100644
--- a/src/simplewallet/simplewallet.cpp
+++ b/src/simplewallet/simplewallet.cpp
@@ -99,10 +99,6 @@ typedef cryptonote::simple_wallet sw;
#define EXTENDED_LOGS_FILE "wallet_details.log"
-#define DEFAULT_MIX 10
-
-#define MIN_RING_SIZE 11 // Used to inform user about min ring size -- does not track actual protocol
-
#define OLD_AGE_WARN_THRESHOLD (30 * 86400 / DIFFICULTY_TARGET_V2) // 30 days
#define LOCK_IDLE_SCOPE() \
@@ -1091,7 +1087,9 @@ bool simple_wallet::make_multisig_main(const std::vector<std::string> &args, boo
auto local_args = args;
local_args.erase(local_args.begin());
std::string multisig_extra_info = m_wallet->make_multisig(orig_pwd_container->password(), local_args, threshold);
- if (!multisig_extra_info.empty())
+ bool ready;
+ m_wallet->multisig(&ready);
+ if (!ready)
{
success_msg_writer() << tr("Another step is needed");
success_msg_writer() << multisig_extra_info;
@@ -1152,7 +1150,7 @@ bool simple_wallet::exchange_multisig_keys_main(const std::vector<std::string> &
return false;
}
- if (args.size() < 2)
+ if (args.size() < 1)
{
PRINT_USAGE(USAGE_EXCHANGE_MULTISIG_KEYS);
return false;
@@ -1161,7 +1159,9 @@ bool simple_wallet::exchange_multisig_keys_main(const std::vector<std::string> &
try
{
std::string multisig_extra_info = m_wallet->exchange_multisig_keys(orig_pwd_container->password(), args);
- if (!multisig_extra_info.empty())
+ bool ready;
+ m_wallet->multisig(&ready);
+ if (!ready)
{
message_writer() << tr("Another step is needed");
message_writer() << multisig_extra_info;
@@ -2472,59 +2472,6 @@ bool simple_wallet::set_store_tx_info(const std::vector<std::string> &args/* = s
return true;
}
-bool simple_wallet::set_default_ring_size(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
-{
- if (m_wallet->watch_only())
- {
- fail_msg_writer() << tr("wallet is watch-only and cannot transfer");
- return true;
- }
- try
- {
- if (strchr(args[1].c_str(), '-'))
- {
- fail_msg_writer() << tr("ring size must be an integer >= ") << MIN_RING_SIZE;
- return true;
- }
- uint32_t ring_size = boost::lexical_cast<uint32_t>(args[1]);
- if (ring_size < MIN_RING_SIZE && ring_size != 0)
- {
- fail_msg_writer() << tr("ring size must be an integer >= ") << MIN_RING_SIZE;
- return true;
- }
-
- if (ring_size != 0 && ring_size != DEFAULT_MIX+1)
- {
- if (m_wallet->use_fork_rules(8, 0))
- {
- message_writer() << tr("WARNING: from v8, ring size will be fixed and this setting will be ignored.");
- }
- else
- {
- message_writer() << tr("WARNING: this is a non default ring size, which may harm your privacy. Default is recommended.");
- }
- }
-
- const auto pwd_container = get_and_verify_password();
- if (pwd_container)
- {
- m_wallet->default_mixin(ring_size > 0 ? ring_size - 1 : 0);
- m_wallet->rewrite(m_wallet_file, pwd_container->password());
- }
- return true;
- }
- catch(const boost::bad_lexical_cast &)
- {
- fail_msg_writer() << tr("ring size must be an integer >= ") << MIN_RING_SIZE;
- return true;
- }
- catch(...)
- {
- fail_msg_writer() << tr("could not change default ring size");
- return true;
- }
-}
-
bool simple_wallet::set_default_priority(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
uint32_t priority = 0;
@@ -3386,8 +3333,6 @@ simple_wallet::simple_wallet()
" Whether to print detailed information about ring members during confirmation.\n "
"store-tx-info <1|0>\n "
" Whether to store outgoing tx info (destination address, payment ID, tx secret key) for future reference.\n "
- "default-ring-size <n>\n "
- " Set the default ring size (obsolete).\n "
"auto-refresh <1|0>\n "
" Whether to automatically synchronize new blocks from the daemon.\n "
"refresh-type <full|optimize-coinbase|no-coinbase|default>\n "
@@ -3896,7 +3841,6 @@ bool simple_wallet::set_variable(const std::vector<std::string> &args)
CHECK_SIMPLE_VARIABLE("always-confirm-transfers", set_always_confirm_transfers, tr("0 or 1"));
CHECK_SIMPLE_VARIABLE("print-ring-members", set_print_ring_members, tr("0 or 1"));
CHECK_SIMPLE_VARIABLE("store-tx-info", set_store_tx_info, tr("0 or 1"));
- CHECK_SIMPLE_VARIABLE("default-ring-size", set_default_ring_size, tr("integer >= ") << MIN_RING_SIZE);
CHECK_SIMPLE_VARIABLE("auto-refresh", set_auto_refresh, tr("0 or 1"));
CHECK_SIMPLE_VARIABLE("refresh-type", set_refresh_type, tr("full (slowest, no assumptions); optimize-coinbase (fast, assumes the whole coinbase is paid to a single address); no-coinbase (fastest, assumes we receive no coinbase transaction), default (same as optimize-coinbase)"));
CHECK_SIMPLE_VARIABLE("priority", set_default_priority, tr("0, 1, 2, 3, or 4, or one of ") << join_priority_strings(", "));
@@ -6539,7 +6483,8 @@ bool simple_wallet::transfer_main(int transfer_type, const std::vector<std::stri
priority = m_wallet->adjust_priority(priority);
- size_t fake_outs_count = DEFAULT_MIX;
+ const size_t min_ring_size = m_wallet->get_min_ring_size();
+ size_t fake_outs_count = min_ring_size - 1;
if(local_args.size() > 0) {
size_t ring_size;
if(!epee::string_tools::get_xtype_from_string(ring_size, local_args[0]))
@@ -6862,7 +6807,7 @@ bool simple_wallet::transfer_main(int transfer_type, const std::vector<std::stri
if (vin.type() == typeid(txin_to_key))
{
const txin_to_key& in_to_key = boost::get<txin_to_key>(vin);
- if (in_to_key.key_offsets.size() != DEFAULT_MIX + 1)
+ if (in_to_key.key_offsets.size() != min_ring_size)
default_ring_size = false;
}
}
@@ -7140,7 +7085,7 @@ bool simple_wallet::sweep_main(uint32_t account, uint64_t below, bool locked, co
priority = m_wallet->adjust_priority(priority);
- size_t fake_outs_count = DEFAULT_MIX;
+ size_t fake_outs_count = m_wallet->get_min_ring_size() - 1;
if(local_args.size() > 0) {
size_t ring_size;
if(!epee::string_tools::get_xtype_from_string(ring_size, local_args[0]))
@@ -7417,7 +7362,7 @@ bool simple_wallet::sweep_single(const std::vector<std::string> &args_)
priority = m_wallet->adjust_priority(priority);
- size_t fake_outs_count = DEFAULT_MIX;
+ size_t fake_outs_count = m_wallet->get_min_ring_size() - 1;
if(local_args.size() > 0) {
size_t ring_size;
if(!epee::string_tools::get_xtype_from_string(ring_size, local_args[0]))
diff --git a/src/simplewallet/simplewallet.h b/src/simplewallet/simplewallet.h
index 473120eac..4c005c53a 100644
--- a/src/simplewallet/simplewallet.h
+++ b/src/simplewallet/simplewallet.h
@@ -125,7 +125,6 @@ namespace cryptonote
bool set_always_confirm_transfers(const std::vector<std::string> &args = std::vector<std::string>());
bool set_print_ring_members(const std::vector<std::string> &args = std::vector<std::string>());
bool set_store_tx_info(const std::vector<std::string> &args = std::vector<std::string>());
- bool set_default_ring_size(const std::vector<std::string> &args = std::vector<std::string>());
bool set_auto_refresh(const std::vector<std::string> &args = std::vector<std::string>());
bool set_refresh_type(const std::vector<std::string> &args = std::vector<std::string>());
bool set_confirm_missing_payment_id(const std::vector<std::string> &args = std::vector<std::string>());
diff --git a/src/wallet/api/wallet2_api.h b/src/wallet/api/wallet2_api.h
index 0701e1a0e..c6f81f0e4 100644
--- a/src/wallet/api/wallet2_api.h
+++ b/src/wallet/api/wallet2_api.h
@@ -423,7 +423,6 @@ struct WalletListener
/**
* @brief Interface for wallet operations.
- * TODO: check if /include/IWallet.h is still actual
*/
struct Wallet
{
diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 71559c456..f4a5a5855 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -5125,7 +5125,7 @@ std::string wallet2::exchange_multisig_keys(const epee::wipeable_string &passwor
// reconstruct multisig account
crypto::public_key dummy;
- multisig::multisig_account::kex_origins_map_t kex_origins_map;
+ multisig::multisig_keyset_map_memsafe_t kex_origins_map;
for (const auto &derivation : m_multisig_derivations)
kex_origins_map[derivation];
@@ -5138,7 +5138,7 @@ std::string wallet2::exchange_multisig_keys(const epee::wipeable_string &passwor
get_account().get_keys().m_multisig_keys,
get_account().get_keys().m_view_secret_key,
m_account_public_address.m_spend_public_key,
- dummy, //common pubkey: not used
+ m_account_public_address.m_view_public_key,
m_multisig_rounds_passed,
std::move(kex_origins_map),
""
@@ -5225,7 +5225,10 @@ bool wallet2::multisig(bool *ready, uint32_t *threshold, uint32_t *total) const
if (total)
*total = m_multisig_signers.size();
if (ready)
- *ready = !(get_account().get_keys().m_account_address.m_spend_public_key == rct::rct2pk(rct::identity()));
+ {
+ *ready = !(get_account().get_keys().m_account_address.m_spend_public_key == rct::rct2pk(rct::identity())) &&
+ (m_multisig_rounds_passed == multisig::multisig_kex_rounds_required(m_multisig_signers.size(), m_multisig_threshold) + 1);
+ }
return true;
}
//----------------------------------------------------------------------------------------------------
@@ -7406,6 +7409,8 @@ int wallet2::get_fee_algorithm()
//------------------------------------------------------------------------------------------------------------------------------
uint64_t wallet2::get_min_ring_size()
{
+ if (use_fork_rules(HF_VERSION_MIN_MIXIN_15, 0))
+ return 16;
if (use_fork_rules(8, 10))
return 11;
if (use_fork_rules(7, 10))
@@ -7419,6 +7424,8 @@ uint64_t wallet2::get_min_ring_size()
//------------------------------------------------------------------------------------------------------------------------------
uint64_t wallet2::get_max_ring_size()
{
+ if (use_fork_rules(HF_VERSION_MIN_MIXIN_15, 0))
+ return 16;
if (use_fork_rules(8, 10))
return 11;
return 0;
@@ -11352,9 +11359,7 @@ void wallet2::check_tx_key_helper(const cryptonote::transaction &tx, const crypt
crypto::derivation_to_scalar(found_derivation, n, scalar1);
rct::ecdhTuple ecdh_info = tx.rct_signatures.ecdhInfo[n];
rct::ecdhDecode(ecdh_info, rct::sk2rct(scalar1), tx.rct_signatures.type == rct::RCTTypeBulletproof2 || tx.rct_signatures.type == rct::RCTTypeCLSAG || tx.rct_signatures.type == rct::RCTTypeBulletproofPlus);
- rct::key C = tx.rct_signatures.outPk[n].mask;
- if (rct::is_rct_bulletproof_plus(tx.rct_signatures.type))
- C = rct::scalarmult8(C);
+ const rct::key C = tx.rct_signatures.outPk[n].mask;
rct::key Ctmp;
THROW_WALLET_EXCEPTION_IF(sc_check(ecdh_info.mask.bytes) != 0, error::wallet_internal_error, "Bad ECDH input mask");
THROW_WALLET_EXCEPTION_IF(sc_check(ecdh_info.amount.bytes) != 0, error::wallet_internal_error, "Bad ECDH input amount");
diff --git a/src/wallet/wallet_rpc_server.cpp b/src/wallet/wallet_rpc_server.cpp
index 543caac1b..57baf428f 100644
--- a/src/wallet/wallet_rpc_server.cpp
+++ b/src/wallet/wallet_rpc_server.cpp
@@ -4134,7 +4134,8 @@ namespace tools
try
{
res.multisig_info = m_wallet->exchange_multisig_keys(req.password, req.multisig_info);
- if (res.multisig_info.empty())
+ m_wallet->multisig(&ready);
+ if (ready)
{
res.address = m_wallet->get_account().get_public_address_str(m_wallet->nettype());
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 07:15:43 +0000