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16 
17 /*!
18  * \file
19  * \brief Pairing private interface.
20  */
21 
22 #ifndef EPID_COMMON_MATH_SRC_PAIRING_INTERNAL_H_
23 #define EPID_COMMON_MATH_SRC_PAIRING_INTERNAL_H_
24 
25 /// Pairing State
26 struct PairingState {
27   EcGroup* ga;      ///< elliptic curve group G1
28   EcGroup* gb;      ///< elliptic curve group G1
29   FiniteField* ff;  ///< finite field Fq12 GT
30   BigNum* t;  ///< positive integer such that 6t^2 = p-q, where p and q are
31               /// parameters of G1
32   bool neg;   ///< 8-bit integer representing a Boolean value
33   FfElement* g[3][5];  ///< 15 elements in Fq2
34   FiniteField* Fq;     ///< Fq
35   FiniteField* Fq2;    ///< Fq2
36   FiniteField* Fq6;    ///< Fq6
37 };
38 
39 #endif  // EPID_COMMON_MATH_SRC_PAIRING_INTERNAL_H_
40