/*############################################################################ # Copyright 2016-2017 Intel Corporation # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. ############################################################################*/ /*! * \file * \brief EpidGetSigSize implementation. */ #include "epid/common/src/endian_convert.h" #include "epid/member/api.h" size_t EpidGetSigSize(SigRl const* sig_rl) { const size_t kMinSigSize = sizeof(EpidSignature) - sizeof(NrProof); if (!sig_rl) { return kMinSigSize; } else { if (ntohl(sig_rl->n2) > (SIZE_MAX - kMinSigSize) / sizeof(NrProof)) { return kMinSigSize; } else { return kMinSigSize + ntohl(sig_rl->n2) * sizeof(NrProof); } } }