| /* |
| * Copyright 2020, The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| #if !defined(EIC_INSIDE_LIBEIC_H) && !defined(EIC_COMPILATION) |
| #error "Never include this file directly, include libeic.h instead." |
| #endif |
| |
| #ifndef ANDROID_HARDWARE_IDENTITY_EIC_COMMON_H |
| #define ANDROID_HARDWARE_IDENTITY_EIC_COMMON_H |
| |
| // KeyMint auth-challenges are 64-bit numbers and 0 typically means unset. |
| #define EIC_KM_AUTH_CHALLENGE_UNSET 0 |
| |
| // Feature version 202009: |
| // |
| // CredentialKeys = [ |
| // bstr, ; storageKey, a 128-bit AES key |
| // bstr, ; credentialPrivKey, the private key for credentialKey |
| // ] |
| // |
| // Feature version 202101: |
| // |
| // CredentialKeys = [ |
| // bstr, ; storageKey, a 128-bit AES key |
| // bstr, ; credentialPrivKey, the private key for credentialKey |
| // bstr ; proofOfProvisioning SHA-256 |
| // ] |
| // |
| // where storageKey is 16 bytes, credentialPrivateKey is 32 bytes, and proofOfProvisioning |
| // SHA-256 is 32 bytes. |
| #define EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202009 52 |
| #define EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202101 86 |
| |
| #endif // ANDROID_HARDWARE_IDENTITY_EIC_COMMON_H |
