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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.
- ############################################################################*/
- /// Host signing helper APIs
- /*! \file */
- #ifndef EPID_MEMBER_SRC_SIGN_COMMITMENT_H_
- #define EPID_MEMBER_SRC_SIGN_COMMITMENT_H_
- #include <stddef.h>
- #include "epid/common/errors.h"
- #include "epid/common/types.h" // HashAlg
- #pragma pack(1)
- /// Result of Sign Commit
- typedef struct SignCommitOutput {
- G1ElemStr B; ///< B value for signature
- G1ElemStr K; ///< K value for signature
- G1ElemStr T; ///< T value for signature
- G1ElemStr R1; ///< Serialized G1 element
- GtElemStr R2; ///< Serialized GT element
- } SignCommitOutput;
- #pragma pack()
- typedef struct SignCommitOutput SignCommitOutput;
- /// \cond
- typedef struct FiniteField FiniteField;
- typedef struct FpElemStr FpElemStr;
- /// \endcond
- /// Calculates commitment hash of sign commit
- /*!
- \param[in] Fp
- The finite field.
- \param[in] hash_alg
- The hash algorithm.
- \param[in] commit_out
- The output from the sign commit.
- \param[in] msg
- The message.
- \param[in] msg_len
- The size of message in bytes.
- \param[out] c_str
- The resulting commitment hash.
- \returns ::EpidStatus
- */
- EpidStatus HashSignCommitment(FiniteField* Fp, HashAlg hash_alg,
- GroupPubKey const* pub_key,
- SignCommitOutput const* commit_out,
- void const* msg, size_t msg_len,
- FpElemStr* c_str);
- #endif // EPID_MEMBER_SRC_SIGN_COMMITMENT_H_
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