74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*
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* Copyright 2021, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#if !defined(EIC_INSIDE_LIBEIC_H) && !defined(EIC_COMPILATION)
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#error "Never include this file directly, include libeic.h instead."
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#endif
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#ifndef ANDROID_HARDWARE_IDENTITY_EIC_SESSION_H
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#define ANDROID_HARDWARE_IDENTITY_EIC_SESSION_H
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#include "EicOps.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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// A non-zero number unique for this EicSession instance
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uint32_t id;
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// The challenge generated at construction time by eicSessionInit().
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uint64_t authChallenge;
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uint8_t ephemeralPrivateKey[EIC_P256_PRIV_KEY_SIZE];
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uint8_t ephemeralPublicKey[EIC_P256_PUB_KEY_SIZE];
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uint8_t readerEphemeralPublicKey[EIC_P256_PUB_KEY_SIZE];
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uint8_t sessionTranscriptSha256[EIC_SHA256_DIGEST_SIZE];
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} EicSession;
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bool eicSessionInit(EicSession* ctx);
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bool eicSessionShutdown(EicSession* ctx);
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bool eicSessionGetId(EicSession* ctx, uint32_t* outId);
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bool eicSessionGetAuthChallenge(EicSession* ctx, uint64_t* outAuthChallenge);
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bool eicSessionGetEphemeralKeyPair(EicSession* ctx,
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uint8_t ephemeralPrivateKey[EIC_P256_PRIV_KEY_SIZE]);
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bool eicSessionSetReaderEphemeralPublicKey(
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EicSession* ctx, const uint8_t readerEphemeralPublicKey[EIC_P256_PUB_KEY_SIZE]);
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bool eicSessionSetSessionTranscript(EicSession* ctx, const uint8_t* sessionTranscript,
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size_t sessionTranscriptSize);
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// Looks up an active session with the given id.
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//
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// Returns NULL if no active session with the given id is found.
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//
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EicSession* eicSessionGetForId(uint32_t sessionId);
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#ifdef __cplusplus
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}
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#endif
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#endif // ANDROID_HARDWARE_IDENTITY_EIC_PRESENTATION_H
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