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Musig combine rpc

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This commit is contained in:
jl777
2019-02-21 04:04:18 -11:00
parent c44e7ae038
commit 0816deb0b0
1 changed files with 34 additions and 3 deletions
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37
src/cc/musig.cpp
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@@ -110,9 +110,40 @@ UniValue musig_calcmsg(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
UniValue musig_combine(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
{
UniValue result(UniValue::VOBJ);
result.push_back(Pair("result","success"));
return(result);
static secp256k1_context *ctx; secp256k1_scratch_space scratch;
size_t clen = CPubKey::PUBLIC_KEY_SIZE;
UniValue result(UniValue::VOBJ); int32_t i,n; uint8_t pkhash[32]; char *hexstr,str[67]; secp256k1_pubkey combined_pk,spk; std::vector<secp256k1_pubkey> pubkeys;
if ( ctx == 0 )
ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);
if ( params != 0 && (n= cJSON_GetArraySize(params)) > 0 )
{
for (i=0; i<n; i++)
{
if ( (hexstr= jstr(jitem(params,i),0)) != 0 && is_hexstr(hexstr,0) == 66 )
{
CPubKey pk(ParseHex(hexstr));
if ( secp256k1_ec_pubkey_parse(ctx,&spk,pk.begin(),33) > 0 )
pubkeys.push_back(spk);
else return(cclib_error(result,"error parsing pk"));
} else return(cclib_error(result,"all pubkeys must be 33 bytes hexdata"));
}
if ( secp256k1_musig_pubkey_combine(ctx,&scratch,&combined_pk,pkhash,&pubkeys[0],n) > 0 )
{
if ( secp256k1_ec_pubkey_serialize(ctx,(uint8_t *)pk.begin(),&clen,&combined_pk,SECP256K1_EC_COMPRESSED) > 0 && clen == 33 )
{
for (i=0; i<32; i++)
sprintf(&str[i<<1],"%02x",pkhash[i]);
str[64] = 0;
result.push_back(Pair("pkhash",str));
for (i=0; i<33; i++)
sprintf(&str[i<<1],"%02x",((uint8_t *)pk.begin())[i]);
str[66] = 0;
result.push_back(Pair("combined_pk",str));
result.push_back(Pair("result","success"));
} else return(cclib_error(result,"error serializeing combined_pk"));
} else return(cclib_error(result,"error combining pukbeys"));
} else return(cclib_error(result,"need pubkeys params"));
}
UniValue musig_session(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)