def genRCTSig(sk_x, sk_in, sk_out, Pk, CIn, COut, ExpIn, ExpOut, index):
#sk_x is private keys of addresses (vector)
#sk_in is masks of input commitments (vector)
#sk_out is masks of output commitments (vector)
#Pk is public key list (2d array)
#CIn is input commitments (2d array)
#COut is output commitments (vector)
#ExpIn is exponents for the input commitments (2d array)
#so each row of this is going to correspond to a column in the actual mlsag..
#ExpOut is exponents for the output commitments
#index is the secret index
sk = sk_x[:]
sk.append(
MiniNero.sc_sub_keys(MiniNero.sc_add(sk_in, ExpIn[index]),
MiniNero.sc_add(sk_out, ExpOut)))
CRow = [None] * len(CIn) #commitments row of public keys Cin - Cout
COutSum = sumCiExp(COut, ExpOut) #Cout1*10^i_1 + Cout2 * 10^{i_2}..
tmp = MiniNero.identity()
pk = [None] * (len(sk_x) + 1) #generalize later...
pk[0] = Pk
for i in range(0, len(CIn)):
CRow[i] = MiniNero.subKeys(sumCiExp(CIn[i], ExpIn[i]), COutSum)
pk[1] = CRow
II, cc, ssVal = MLSAG.MLSAG_Sign(pk, sk, index)
return pk, II, cc, ssVal
def genRCTSig(sk_x, sk_in, sk_out, Pk, CIn, COut, ExpIn, ExpOut, index):
#sk_x is private keys of addresses (vector)
#sk_in is masks of input commitments (vector)
#sk_out is masks of output commitments (vector)
#Pk is public key list (2d array)
#CIn is input commitments (2d array)
#COut is output commitments (vector)
#ExpIn is exponents for the input commitments (2d array)
#so each row of this is going to correspond to a column in the actual mlsag..
#ExpOut is exponents for the output commitments
#index is the secret index
sk = sk_x[:]
sk.append(MiniNero.sc_sub_keys(MiniNero.sc_add(sk_in, ExpIn[index]), MiniNero.sc_add(sk_out, ExpOut)))
CRow = [None] * len(CIn) #commitments row of public keys Cin - Cout
COutSum = sumCiExp(COut, ExpOut) #Cout1*10^i_1 + Cout2 * 10^{i_2}..
tmp = MiniNero.identity()
pk = [None] * (len(sk_x) + 1) #generalize later...
pk[0] = Pk
for i in range(0, len(CIn)):
CRow[i] = MiniNero.subKeys(sumCiExp(CIn[i], ExpIn[i]), COutSum)
pk[1] = CRow
II, cc, ssVal = MLSAG.MLSAG_Sign(pk, sk, index)
return pk, II, cc, ssVal
