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Transplant of libzcash.

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This commit is contained in:
Sean Bowe
2016-05-04 18:26:21 -06:00
parent 2140639309
commit 2dc3599271
13 changed files with 212 additions and 237 deletions
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84
src/primitives/transaction.cpp
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@@ -9,72 +9,56 @@
#include "tinyformat.h"
#include "utilstrencodings.h"
#include "zerocash/PourProver.h"
#include "zerocash/PourTransaction.h"
template<std::size_t N>
boost::array<std::vector<unsigned char>, N> uint256_to_array(const boost::array<uint256, N>& in) {
boost::array<std::vector<unsigned char>, N> result;
for (size_t i = 0; i < N; i++) {
result[i] = std::vector<unsigned char>(in[i].begin(), in[i].end());
}
return result;
}
template<std::size_t N>
boost::array<uint256, N> unsigned_char_vector_array_to_uint256_array(const boost::array<std::vector<unsigned char>, N>& in) {
boost::array<uint256, N> result;
for (size_t i = 0; i < N; i++) {
result[i] = uint256(in[i]);
}
return result;
}
CPourTx::CPourTx(ZerocashParams& params,
CPourTx::CPourTx(ZCJoinSplit& params,
const uint256& pubKeyHash,
const uint256& anchor,
const boost::array<PourInput, ZC_NUM_JS_INPUTS>& inputs,
const boost::array<PourOutput, ZC_NUM_JS_OUTPUTS>& outputs,
const boost::array<libzcash::JSInput, ZC_NUM_JS_INPUTS>& inputs,
const boost::array<libzcash::JSOutput, ZC_NUM_JS_OUTPUTS>& outputs,
CAmount vpub_old,
CAmount vpub_new) : vpub_old(vpub_old), vpub_new(vpub_new), anchor(anchor)
{
PourTransaction pourtx(params,
std::vector<unsigned char>(pubKeyHash.begin(), pubKeyHash.end()),
std::vector<unsigned char>(anchor.begin(), anchor.end()),
std::vector<PourInput>(inputs.begin(), inputs.end()),
std::vector<PourOutput>(outputs.begin(), outputs.end()),
vpub_old,
vpub_new);
boost::array<libzcash::Note, ZC_NUM_JS_OUTPUTS> notes;
boost::array<std::vector<unsigned char>, ZC_NUM_JS_INPUTS> serials_bv;
boost::array<std::vector<unsigned char>, ZC_NUM_JS_OUTPUTS> commitments_bv;
boost::array<std::vector<unsigned char>, ZC_NUM_JS_INPUTS> macs_bv;
proof = pourtx.unpack(serials_bv, commitments_bv, macs_bv, ciphertexts, ephemeralKey);
serials = unsigned_char_vector_array_to_uint256_array(serials_bv);
commitments = unsigned_char_vector_array_to_uint256_array(commitments_bv);
macs = unsigned_char_vector_array_to_uint256_array(macs_bv);
params.loadProvingKey();
proof = params.prove(
inputs,
outputs,
notes,
ciphertexts,
ephemeralKey,
pubKeyHash,
randomSeed,
macs,
serials,
commitments,
vpub_old,
vpub_new,
anchor
);
}
bool CPourTx::Verify(
ZerocashParams& params,
ZCJoinSplit& params,
const uint256& pubKeyHash
) const {
return PourProver::VerifyProof(
params,
std::vector<unsigned char>(pubKeyHash.begin(), pubKeyHash.end()),
std::vector<unsigned char>(anchor.begin(), anchor.end()),
return params.verify(
proof,
pubKeyHash,
randomSeed,
macs,
serials,
commitments,
vpub_old,
vpub_new,
uint256_to_array<ZC_NUM_JS_INPUTS>(serials),
uint256_to_array<ZC_NUM_JS_OUTPUTS>(commitments),
uint256_to_array<ZC_NUM_JS_INPUTS>(macs),
proof
anchor
);
}
uint256 CPourTx::h_sig(ZCJoinSplit& params, const uint256& pubKeyHash) const
{
return params.h_sig(randomSeed, serials, pubKeyHash);
}
std::string COutPoint::ToString() const
{
return strprintf("COutPoint(%s, %u)", hash.ToString().substr(0,10), n);