def cred_CredKeyge(params, n):
    _, g, h, o = params
    sk, iparams = keyGen_ggm(params, n)
    x0_bar = o.random()
    Cx0 = sk[0] * g + x0_bar * h
    return (Cx0, iparams), (sk, x0_bar)
Generates keys and parameters for the credential issuer
dataset/ETHPy150Open gdanezis/petlib/examples/amacscreds.py/cred_CredKeyge