diff options
Diffstat (limited to '')
-rw-r--r-- | src/ringct/rctSigs.cpp | 74 |
1 files changed, 37 insertions, 37 deletions
diff --git a/src/ringct/rctSigs.cpp b/src/ringct/rctSigs.cpp index 0c2be5add..d3437eb36 100644 --- a/src/ringct/rctSigs.cpp +++ b/src/ringct/rctSigs.cpp @@ -35,6 +35,9 @@ #include "rctSigs.h" #include "bulletproofs.h" #include "cryptonote_basic/cryptonote_format_utils.h" +#include "cryptonote_basic/cryptonote_basic.h" +#include "cryptonote_basic/subaddress_index.h" +#include "device/device.hpp" using namespace crypto; using namespace std; @@ -153,7 +156,7 @@ namespace rct { // Gen creates a signature which proves that for some column in the keymatrix "pk" // the signer knows a secret key for each row in that column // Ver verifies that the MG sig was created correctly - mgSig MLSAG_Gen(const key &message, const keyM & pk, const keyV & xx, const multisig_kLRki *kLRki, key *mscout, const unsigned int index, size_t dsRows) { + mgSig MLSAG_Gen(const key &message, const keyM & pk, const keyV & xx, const multisig_kLRki *kLRki, key *mscout, const unsigned int index, size_t dsRows, hw::device &hwdev) { mgSig rv; size_t cols = pk.size(); CHECK_AND_ASSERT_THROW_MES(cols >= 2, "Error! What is c if cols = 1!"); @@ -191,11 +194,9 @@ namespace rct { } else { Hi = hashToPoint(pk[index][i]); - skpkGen(alpha[i], aG[i]); //need to save alphas for later.. - aHP[i] = scalarmultKey(Hi, alpha[i]); + hwdev.mlsag_prepare(Hi, xx[i], alpha[i] , aG[i] , aHP[i] , rv.II[i]); toHash[3 * i + 2] = aG[i]; toHash[3 * i + 3] = aHP[i]; - rv.II[i] = scalarmultKey(Hi, xx[i]); } precomp(Ip[i].k, rv.II[i]); } @@ -206,7 +207,7 @@ namespace rct { toHash[ndsRows + 2 * ii + 2] = aG[i]; } - c_old = hash_to_scalar(toHash); + hwdev.mlsag_hash(toHash, c_old); i = (index + 1) % cols; @@ -230,7 +231,7 @@ namespace rct { toHash[ndsRows + 2 * ii + 1] = pk[i][j]; toHash[ndsRows + 2 * ii + 2] = L; } - c = hash_to_scalar(toHash); + hwdev.mlsag_hash(toHash, c); copy(c_old, c); i = (i + 1) % cols; @@ -238,9 +239,7 @@ namespace rct { copy(rv.cc, c_old); } } - for (j = 0; j < rows; j++) { - sc_mulsub(rv.ss[index][j].bytes, c.bytes, xx[j].bytes, alpha[j].bytes); - } + hwdev.mlsag_sign(c, xx, alpha, rows, dsRows, rv.ss[index]); if (mscout) *mscout = c; return rv; @@ -372,7 +371,7 @@ namespace rct { catch (...) { return false; } } - key get_pre_mlsag_hash(const rctSig &rv) + key get_pre_mlsag_hash(const rctSig &rv, hw::device &hwdev) { keyV hashes; hashes.reserve(3); @@ -384,6 +383,7 @@ namespace rct { CHECK_AND_ASSERT_THROW_MES(!rv.mixRing.empty(), "Empty mixRing"); const size_t inputs = is_simple(rv.type) ? rv.mixRing.size() : rv.mixRing[0].size(); const size_t outputs = rv.ecdhInfo.size(); + key prehash; CHECK_AND_ASSERT_THROW_MES(const_cast<rctSig&>(rv).serialize_rctsig_base(ba, inputs, outputs), "Failed to serialize rctSigBase"); cryptonote::get_blob_hash(ss.str(), h); @@ -427,7 +427,8 @@ namespace rct { } } hashes.push_back(cn_fast_hash(kv)); - return cn_fast_hash(hashes); + hwdev.mlsag_prehash(ss.str(), inputs, outputs, hashes, rv.outPk, prehash); + return prehash; } //Ring-ct MG sigs @@ -438,7 +439,7 @@ namespace rct { // this shows that sum inputs = sum outputs //Ver: // verifies the above sig is created corretly - mgSig proveRctMG(const key &message, const ctkeyM & pubs, const ctkeyV & inSk, const ctkeyV &outSk, const ctkeyV & outPk, const multisig_kLRki *kLRki, key *mscout, unsigned int index, key txnFeeKey) { + mgSig proveRctMG(const key &message, const ctkeyM & pubs, const ctkeyV & inSk, const ctkeyV &outSk, const ctkeyV & outPk, const multisig_kLRki *kLRki, key *mscout, unsigned int index, key txnFeeKey, hw::device &hwdev) { mgSig mg; //setup vars size_t cols = pubs.size(); @@ -483,7 +484,7 @@ namespace rct { for (size_t j = 0; j < outPk.size(); j++) { sc_sub(sk[rows].bytes, sk[rows].bytes, outSk[j].mask.bytes); //subtract output masks in last row.. } - return MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows); + return MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows, hwdev); } @@ -494,7 +495,7 @@ namespace rct { // inSk is x, a_in corresponding to signing index // a_out, Cout is for the output commitment // index is the signing index.. - mgSig proveRctMGSimple(const key &message, const ctkeyV & pubs, const ctkey & inSk, const key &a , const key &Cout, const multisig_kLRki *kLRki, key *mscout, unsigned int index) { + mgSig proveRctMGSimple(const key &message, const ctkeyV & pubs, const ctkey & inSk, const key &a , const key &Cout, const multisig_kLRki *kLRki, key *mscout, unsigned int index, hw::device &hwdev) { mgSig mg; //setup vars size_t rows = 1; @@ -511,7 +512,7 @@ namespace rct { sk[0] = copy(inSk.dest); sc_sub(sk[1].bytes, inSk.mask.bytes, a.bytes); } - return MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows); + return MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows, hwdev); } @@ -645,7 +646,7 @@ namespace rct { // must know the destination private key to find the correct amount, else will return a random number // Note: For txn fees, the last index in the amounts vector should contain that // Thus the amounts vector will be "one" longer than the destinations vectort - rctSig genRct(const key &message, const ctkeyV & inSk, const keyV & destinations, const vector<xmr_amount> & amounts, const ctkeyM &mixRing, const keyV &amount_keys, const multisig_kLRki *kLRki, multisig_out *msout, unsigned int index, ctkeyV &outSk, bool bulletproof) { + rctSig genRct(const key &message, const ctkeyV & inSk, const keyV & destinations, const vector<xmr_amount> & amounts, const ctkeyM &mixRing, const keyV &amount_keys, const multisig_kLRki *kLRki, multisig_out *msout, unsigned int index, ctkeyV &outSk, bool bulletproof, hw::device &hwdev) { CHECK_AND_ASSERT_THROW_MES(amounts.size() == destinations.size() || amounts.size() == destinations.size() + 1, "Different number of amounts/destinations"); CHECK_AND_ASSERT_THROW_MES(amount_keys.size() == destinations.size(), "Different number of amount_keys/destinations"); CHECK_AND_ASSERT_THROW_MES(index < mixRing.size(), "Bad index into mixRing"); @@ -685,8 +686,7 @@ namespace rct { //mask amount and mask rv.ecdhInfo[i].mask = copy(outSk[i].mask); rv.ecdhInfo[i].amount = d2h(amounts[i]); - ecdhEncode(rv.ecdhInfo[i], amount_keys[i]); - + ecdhEncode(rv.ecdhInfo[i], amount_keys[i], hwdev); } //set txn fee @@ -703,21 +703,21 @@ namespace rct { rv.mixRing = mixRing; if (msout) msout->c.resize(1); - rv.p.MGs.push_back(proveRctMG(get_pre_mlsag_hash(rv), rv.mixRing, inSk, outSk, rv.outPk, kLRki, msout ? &msout->c[0] : NULL, index, txnFeeKey)); + rv.p.MGs.push_back(proveRctMG(get_pre_mlsag_hash(rv, hwdev), rv.mixRing, inSk, outSk, rv.outPk, kLRki, msout ? &msout->c[0] : NULL, index, txnFeeKey,hwdev)); return rv; } - rctSig genRct(const key &message, const ctkeyV & inSk, const ctkeyV & inPk, const keyV & destinations, const vector<xmr_amount> & amounts, const keyV &amount_keys, const multisig_kLRki *kLRki, multisig_out *msout, const int mixin) { + rctSig genRct(const key &message, const ctkeyV & inSk, const ctkeyV & inPk, const keyV & destinations, const vector<xmr_amount> & amounts, const keyV &amount_keys, const multisig_kLRki *kLRki, multisig_out *msout, const int mixin, hw::device &hwdev) { unsigned int index; ctkeyM mixRing; ctkeyV outSk; tie(mixRing, index) = populateFromBlockchain(inPk, mixin); - return genRct(message, inSk, destinations, amounts, mixRing, amount_keys, kLRki, msout, index, outSk, false); + return genRct(message, inSk, destinations, amounts, mixRing, amount_keys, kLRki, msout, index, outSk, false, hwdev); } //RCT simple //for post-rct only - rctSig genRctSimple(const key &message, const ctkeyV & inSk, const keyV & destinations, const vector<xmr_amount> &inamounts, const vector<xmr_amount> &outamounts, xmr_amount txnFee, const ctkeyM & mixRing, const keyV &amount_keys, const std::vector<multisig_kLRki> *kLRki, multisig_out *msout, const std::vector<unsigned int> & index, ctkeyV &outSk, bool bulletproof) { + rctSig genRctSimple(const key &message, const ctkeyV & inSk, const keyV & destinations, const vector<xmr_amount> &inamounts, const vector<xmr_amount> &outamounts, xmr_amount txnFee, const ctkeyM & mixRing, const keyV &amount_keys, const std::vector<multisig_kLRki> *kLRki, multisig_out *msout, const std::vector<unsigned int> & index, ctkeyV &outSk, bool bulletproof, hw::device &hwdev) { CHECK_AND_ASSERT_THROW_MES(inamounts.size() > 0, "Empty inamounts"); CHECK_AND_ASSERT_THROW_MES(inamounts.size() == inSk.size(), "Different number of inamounts/inSk"); CHECK_AND_ASSERT_THROW_MES(outamounts.size() == destinations.size(), "Different number of amounts/destinations"); @@ -767,7 +767,7 @@ namespace rct { //mask amount and mask rv.ecdhInfo[i].mask = copy(outSk[i].mask); rv.ecdhInfo[i].amount = d2h(outamounts[i]); - ecdhEncode(rv.ecdhInfo[i], amount_keys[i]); + ecdhEncode(rv.ecdhInfo[i], amount_keys[i],hwdev); } //set txn fee @@ -790,16 +790,16 @@ namespace rct { genC(pseudoOuts[i], a[i], inamounts[i]); DP(pseudoOuts[i]); - key full_message = get_pre_mlsag_hash(rv); + key full_message = get_pre_mlsag_hash(rv,hwdev); if (msout) msout->c.resize(inamounts.size()); for (i = 0 ; i < inamounts.size(); i++) { - rv.p.MGs[i] = proveRctMGSimple(full_message, rv.mixRing[i], inSk[i], a[i], pseudoOuts[i], kLRki ? &(*kLRki)[i]: NULL, msout ? &msout->c[i] : NULL, index[i]); + rv.p.MGs[i] = proveRctMGSimple(full_message, rv.mixRing[i], inSk[i], a[i], pseudoOuts[i], kLRki ? &(*kLRki)[i]: NULL, msout ? &msout->c[i] : NULL, index[i], hwdev); } return rv; } - rctSig genRctSimple(const key &message, const ctkeyV & inSk, const ctkeyV & inPk, const keyV & destinations, const vector<xmr_amount> &inamounts, const vector<xmr_amount> &outamounts, const keyV &amount_keys, const std::vector<multisig_kLRki> *kLRki, multisig_out *msout, xmr_amount txnFee, unsigned int mixin) { + rctSig genRctSimple(const key &message, const ctkeyV & inSk, const ctkeyV & inPk, const keyV & destinations, const vector<xmr_amount> &inamounts, const vector<xmr_amount> &outamounts, const keyV &amount_keys, const std::vector<multisig_kLRki> *kLRki, multisig_out *msout, xmr_amount txnFee, unsigned int mixin, hw::device &hwdev) { std::vector<unsigned int> index; index.resize(inPk.size()); ctkeyM mixRing; @@ -809,7 +809,7 @@ namespace rct { mixRing[i].resize(mixin+1); index[i] = populateFromBlockchainSimple(mixRing[i], inPk[i], mixin); } - return genRctSimple(message, inSk, destinations, inamounts, outamounts, txnFee, mixRing, amount_keys, kLRki, msout, index, outSk, false); + return genRctSimple(message, inSk, destinations, inamounts, outamounts, txnFee, mixRing, amount_keys, kLRki, msout, index, outSk, false, hwdev); } //RingCT protocol @@ -868,7 +868,7 @@ namespace rct { if (!semantics) { //compute txn fee key txnFeeKey = scalarmultH(d2h(rv.txnFee)); - bool mgVerd = verRctMG(rv.p.MGs[0], rv.mixRing, rv.outPk, txnFeeKey, get_pre_mlsag_hash(rv)); + bool mgVerd = verRctMG(rv.p.MGs[0], rv.mixRing, rv.outPk, txnFeeKey, get_pre_mlsag_hash(rv, hw::get_device("default"))); DP("mg sig verified?"); DP(mgVerd); if (!mgVerd) { @@ -973,7 +973,7 @@ namespace rct { } } else { - const key message = get_pre_mlsag_hash(rv); + const key message = get_pre_mlsag_hash(rv, hw::get_device("default")); results.clear(); results.resize(rv.mixRing.size()); @@ -1017,14 +1017,14 @@ namespace rct { //decodeRct: (c.f. http://eprint.iacr.org/2015/1098 section 5.1.1) // uses the attached ecdh info to find the amounts represented by each output commitment // must know the destination private key to find the correct amount, else will return a random number - xmr_amount decodeRct(const rctSig & rv, const key & sk, unsigned int i, key & mask) { + xmr_amount decodeRct(const rctSig & rv, const key & sk, unsigned int i, key & mask, hw::device &hwdev) { CHECK_AND_ASSERT_MES(rv.type == RCTTypeFull || rv.type == RCTTypeFullBulletproof, false, "decodeRct called on non-full rctSig"); CHECK_AND_ASSERT_THROW_MES(i < rv.ecdhInfo.size(), "Bad index"); CHECK_AND_ASSERT_THROW_MES(rv.outPk.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.outPk and rv.ecdhInfo"); //mask amount and mask ecdhTuple ecdh_info = rv.ecdhInfo[i]; - ecdhDecode(ecdh_info, sk); + ecdhDecode(ecdh_info, sk, hwdev); mask = ecdh_info.mask; key amount = ecdh_info.amount; key C = rv.outPk[i].mask; @@ -1040,19 +1040,19 @@ namespace rct { return h2d(amount); } - xmr_amount decodeRct(const rctSig & rv, const key & sk, unsigned int i) { + xmr_amount decodeRct(const rctSig & rv, const key & sk, unsigned int i, hw::device &hwdev) { key mask; - return decodeRct(rv, sk, i, mask); + return decodeRct(rv, sk, i, mask, hwdev); } - xmr_amount decodeRctSimple(const rctSig & rv, const key & sk, unsigned int i, key &mask) { + xmr_amount decodeRctSimple(const rctSig & rv, const key & sk, unsigned int i, key &mask, hw::device &hwdev) { CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple || rv.type == RCTTypeSimpleBulletproof, false, "decodeRct called on non simple rctSig"); CHECK_AND_ASSERT_THROW_MES(i < rv.ecdhInfo.size(), "Bad index"); CHECK_AND_ASSERT_THROW_MES(rv.outPk.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.outPk and rv.ecdhInfo"); //mask amount and mask ecdhTuple ecdh_info = rv.ecdhInfo[i]; - ecdhDecode(ecdh_info, sk); + ecdhDecode(ecdh_info, sk, hwdev); mask = ecdh_info.mask; key amount = ecdh_info.amount; key C = rv.outPk[i].mask; @@ -1068,9 +1068,9 @@ namespace rct { return h2d(amount); } - xmr_amount decodeRctSimple(const rctSig & rv, const key & sk, unsigned int i) { + xmr_amount decodeRctSimple(const rctSig & rv, const key & sk, unsigned int i, hw::device &hwdev) { key mask; - return decodeRctSimple(rv, sk, i, mask); + return decodeRctSimple(rv, sk, i, mask, hwdev); } bool signMultisig(rctSig &rv, const std::vector<unsigned int> &indices, const keyV &k, const multisig_out &msout, const key &secret_key) { |