55     EpidStatus sts = kEpidErr;  in EpidMemberIsKeyValid()  local
64       sts = EpidMemberInitialProvision(ctx);  in EpidMemberIsKeyValid()
65       BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
69     sts = NewEcPoint(G2, &t1);  in EpidMemberIsKeyValid()
70     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
72     sts = EcSscmExp(G2, g2, (BigNumStr const*)x_str, t1);  in EpidMemberIsKeyValid()
73     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
76     sts = NewEcPoint(G2, &w);  in EpidMemberIsKeyValid()
77     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
78     sts = ReadEcPoint(G2, w_str, sizeof(*w_str), w);  in EpidMemberIsKeyValid()
79     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
80     sts = EcMul(G2, t1, w, t1);  in EpidMemberIsKeyValid()
81     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
84     sts = NewFfElement(GT, &t3);  in EpidMemberIsKeyValid()
85     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
86     sts = NewEcPoint(G1, &A);  in EpidMemberIsKeyValid()
87     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
88     sts = ReadEcPoint(G1, A_str, sizeof(*A_str), A);  in EpidMemberIsKeyValid()
89     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
90     sts = Pairing(ps_ctx, A, t1, t3);  in EpidMemberIsKeyValid()
91     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
94     sts = NewEcPoint(G1, &t2);  in EpidMemberIsKeyValid()
95     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
96     sts = NewEcPoint(G1, &h1);  in EpidMemberIsKeyValid()
97     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
98     sts = ReadEcPoint(G1, h1_str, sizeof(*h1_str), h1);  in EpidMemberIsKeyValid()
99     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
100     sts = EpidPrivateExp(ctx, h1, t2);  in EpidMemberIsKeyValid()
101     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
104     sts = EcMul(G1, t2, g1, t2);  in EpidMemberIsKeyValid()
105     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
108     sts = NewFfElement(GT, &t4);  in EpidMemberIsKeyValid()
109     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
110     sts = Pairing(ps_ctx, t2, g2, t4);  in EpidMemberIsKeyValid()
111     BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()
114     sts = FfIsEqual(GT, t3, t4, &key_is_valid);  in EpidMemberIsKeyValid()
115     if (kEpidNoErr != sts) {  in EpidMemberIsKeyValid()
117       BREAK_ON_EPID_ERROR(sts);  in EpidMemberIsKeyValid()