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Low level signing

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This commit is contained in:
jl777
2019-03-25 01:25:40 -11:00
parent 581df62b25
commit 26b7510dba
1 changed files with 13 additions and 19 deletions
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32
src/cc/gamescc.cpp
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@@ -167,26 +167,20 @@ UniValue games_register(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
int32_t games_eventsign(std::vector<uint8_t> &sig,std::vector<uint8_t> payload,CPubKey pk)
{
bool signSuccess; SignatureData sigdata; int32_t i,siglen; uint256 hash; uint8_t *ptr; auto consensusBranchId = 0; CMutableTransaction txNew;
const CKeyStore& keystore = *pwalletMain;
txNew.vin.resize(1);
txNew.vout.resize(1);
vcalc_sha256(0,(uint8_t *)&txNew.vin[0].prevout.hash,&payload[0],(int32_t)payload.size());
txNew.vin[0].prevout.n = 0;
txNew.vout[0].scriptPubKey = CScript() << ParseHex(HexStr(pk)) << OP_CHECKSIG;
txNew.vout[0].nValue = payload.size();
txNew.nLockTime = 0;
CTransaction txNewConst(txNew);
signSuccess = ProduceSignature(TransactionSignatureCreator(&keystore, &txNewConst, 0, payload.size(), SIGHASH_ALL), txNew.vout[0].scriptPubKey, sigdata, consensusBranchId);
if ( signSuccess > 0 )
static void *ctx;
size_t siglen = 74; secp256k1_ecdsa_signature signature; uint8_t privkey[32];
if ( ctx == 0 )
ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN);
if ( ctx != 0 )
{
UpdateTransaction(txNew,0,sigdata);
ptr = (uint8_t *)&sigdata.scriptSig[0];
siglen = sigdata.scriptSig.size();
sig.resize(siglen);
for (i=0; i<siglen; i++)
sig[i] = ptr[i];
return(0);
Myprivkey(privkey);
if ( secp256k1_ecdsa_sign(ctx,&signature,(uint8_t *)&hash,privkey,NULL,NULL) > 0 )
{
sig.resize(siglen);
if ( secp256k1_ecdsa_signature_serialize_der(ctx,&sig[0],&siglen,&signature) > 0 )
return(0);
else return(-3);
} else return(-2);
} else return(-1);
}