48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/*
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* Copyright 2020, 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_COMMON_H
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#define ANDROID_HARDWARE_IDENTITY_EIC_COMMON_H
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// KeyMint auth-challenges are 64-bit numbers and 0 typically means unset.
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#define EIC_KM_AUTH_CHALLENGE_UNSET 0
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// Feature version 202009:
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//
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// CredentialKeys = [
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// bstr, ; storageKey, a 128-bit AES key
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// bstr, ; credentialPrivKey, the private key for credentialKey
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// ]
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//
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// Feature version 202101:
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//
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// CredentialKeys = [
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// bstr, ; storageKey, a 128-bit AES key
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// bstr, ; credentialPrivKey, the private key for credentialKey
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// bstr ; proofOfProvisioning SHA-256
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// ]
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//
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// where storageKey is 16 bytes, credentialPrivateKey is 32 bytes, and proofOfProvisioning
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// SHA-256 is 32 bytes.
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#define EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202009 52
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#define EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202101 86
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#endif // ANDROID_HARDWARE_IDENTITY_EIC_COMMON_H
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