//generates a <secret , public> / Pedersen commitment but takes bH as input
tuple<ctkey, ctkey> ctskpkGen(key bH) {
ctkey sk, pk;
skpkGen(sk.dest, pk.dest);
skpkGen(sk.mask, pk.mask);
addKeys(pk.mask, pk.mask, bH);
return make_tuple(sk, pk);
}
//generates a <secret , public> / Pedersen commitment to the amount
tuple<ctkey, ctkey> ctskpkGen(xmr_amount amount) {
ctkey sk, pk;
skpkGen(sk.dest, pk.dest);
skpkGen(sk.mask, pk.mask);
key am = d2h(amount);
key bH = scalarmultH(am);
addKeys(pk.mask, pk.mask, bH);
return make_tuple(sk, pk);
}
//Generate Signing Keys
//This function is called by each participant in
//A ring multisignature transaction.
//The participant will send the returned parameters
//to whomever is managing the transaction.
//returns a, aG, aHP and I
tuple<key, key, key, key> InitiateRMS(key x) {
key I = scalarmultKey(hashToPoint(scalarmultBase(x)), x);
key a, aG;
skpkGen(a, aG);
key aHP = scalarmultKey(hashToPoint(scalarmultBase(x)), a);
return make_tuple(a, aG, aHP, I);
}
