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- /*############################################################################
- # Copyright 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.
- ############################################################################*/
- /// EpidSignBasic interface.
- /*! \file */
- #ifndef EPID_MEMBER_SRC_SIGNBASIC_H_
- #define EPID_MEMBER_SRC_SIGNBASIC_H_
- #include <stddef.h>
- #include "epid/common/errors.h"
- /// \cond
- typedef struct MemberCtx MemberCtx;
- typedef struct BasicSignature BasicSignature;
- typedef struct BigNumStr BigNumStr;
- /// \endcond
- /// Creates a basic signature for use in constrained environment.
- /*!
- Used in constrained environments where, due to limited memory, it may not
- be possible to process through a large and potentially unbounded revocation
- list.
- \param[in] ctx
- The member context.
- \param[in] msg
- The message.
- \param[in] msg_len
- The length of message in bytes.
- \param[in] basename
- Optional basename. If basename is NULL a random basename is used.
- Signatures generated using random basenames are anonymous. Signatures
- generated using the same basename are linkable by the verifier. If a
- basename is provided it must already be registered or
- ::kEpidBadArgErr is returned.
- \param[in] basename_len
- The size of basename in bytes. Must be 0 if basename is NULL.
- \param[out] sig
- The generated basic signature
- \param[out] rnd_bsn
- Random basename, can be NULL if basename is provided.
- \returns ::EpidStatus
- \note
- This function should be used in conjunction with EpidNrProve()
- \note
- If the result is not ::kEpidNoErr the content of sig, is undefined.
- \see EpidMemberInit
- \see EpidNrProve
- */
- EpidStatus EpidSignBasic(MemberCtx const* ctx, void const* msg, size_t msg_len,
- void const* basename, size_t basename_len,
- BasicSignature* sig, BigNumStr* rnd_bsn);
- #endif // EPID_MEMBER_SRC_SIGNBASIC_H_
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