util.h

/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* plugins/preauth/spake/internal.h - SPAKE internal function declarations */
/*
 * Copyright (C) 2015 by the Massachusetts Institute of Technology.
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#ifndef UTIL_H
#define UTIL_H

#include "k5-int.h"
#include "groups.h"

krb5_error_code convert_to_padata(krb5_data *data, krb5_pa_data ***pa_out);

krb5_error_code update_thash(krb5_context context, groupstate *gstate,
                             int32_t group, krb5_data *thash,
                             const krb5_data *data1, const krb5_data *data2);

krb5_error_code derive_wbytes(krb5_context context, int32_t group,
                              const krb5_keyblock *ikey,
                              krb5_data *wbytes_out);

krb5_error_code derive_key(krb5_context context, groupstate *gstate,
                           int32_t group, const krb5_keyblock *ikey,
                           const krb5_data *wbytes,
                           const krb5_data *spakeresult,
                           const krb5_data *thash, const krb5_data *der_req,
                           uint32_t n, krb5_keyblock **out);

#endif /* UTIL_H */