common

type BitSlice []byte

type CiphertextPair struct {
	C1 *big.Int
	C2 *big.Int
}

type Comm = Uint256

type Config struct {
	Q        *big.Int // q=N值
	Q3       *big.Int // q3=q/3
	QSquared *big.Int // qSquared=q^2

	NPaillierBits  int
	NthRootSecBits int
	RangeSecBits   int
}

type DLogPoK struct {
	PK  eckey.CompressedPublicKey
	Sig schnorr.Signature
}

type Nonce = Uint256

type PaillierNthRootProof struct {
	PK      *paillier.PublicKey
	U       *big.Int
	A       *big.Int
	Z       *big.Int
	SecBits int
}

type ProofPair struct {
	J  byte
	W1 *big.Int
	R1 *big.Int
	W2 *big.Int
	R2 *big.Int
}

type RangeProof struct {
	CtxtPairs  []CiphertextPair
	ProofPairs []ProofPair
}

type RangeProofProver struct {
	X   *big.Int
	R   *big.Int
	PSK *paillier.PrivateKey
	Q   *big.Int
	Q3  *big.Int

	ChallengeComm Comm
	Accuracy      int

	SecPairs  []SecretPair
	CtxtPairs []CiphertextPair
}

type RangeProofVerifier struct {
	C         *big.Int
	PPK       *paillier.PublicKey
	Q3        *big.Int
	Challenge BitSlice
	Comm      Comm
	Nonce     Nonce
	Accuracy  int

	CtxtPairs []CiphertextPair
}

type SecretPair struct {
	W1 *big.Int
	R1 *big.Int
	W2 *big.Int
	R2 *big.Int
}

type Uint256 [32]byte