| Julian Hall | e7bccbe | 2021-07-16 09:50:34 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2021, Arm Limited and Contributors. All rights reserved. |
| 3 | * SPDX-License-Identifier: BSD-3-Clause |
| 4 | */ |
| 5 | |
| 6 | #ifndef TS_CRYPTO_CIPHER_H |
| 7 | #define TS_CRYPTO_CIPHER_H |
| 8 | |
| 9 | #include <stdint.h> |
| 10 | |
| 11 | /** |
| 12 | * Cipher operations on arbitrary sized data involve three operations, |
| 13 | * a setup, called once, an update called 1..* times and a finish |
| 14 | * to finalise theh hash operation. Operations may be aborted |
| 15 | * using the abort operation. |
| 16 | */ |
| 17 | |
| 18 | |
| 19 | /**************************************** |
| 20 | * cipher_setup operation definition (encrypt or decrypt) |
| 21 | */ |
| 22 | |
| 23 | /* Mandatory fixed sized input parameters */ |
| 24 | struct __attribute__ ((__packed__)) ts_crypto_cipher_setup_in |
| 25 | { |
| 26 | uint32_t key_id; |
| 27 | uint32_t alg; |
| 28 | }; |
| 29 | |
| 30 | /* Mandatory fixed sized output parameters */ |
| 31 | struct __attribute__ ((__packed__)) ts_crypto_cipher_setup_out |
| 32 | { |
| 33 | uint32_t op_handle; |
| 34 | }; |
| 35 | |
| 36 | /**************************************** |
| 37 | * cipher_generate_iv operation definition |
| 38 | */ |
| 39 | |
| 40 | /* Mandatory fixed sized input parameters */ |
| 41 | struct __attribute__ ((__packed__)) ts_crypto_cipher_generate_iv_in |
| 42 | { |
| 43 | uint32_t op_handle; |
| 44 | }; |
| 45 | |
| 46 | /* Variable length output parameter tags */ |
| 47 | enum |
| 48 | { |
| 49 | TS_CRYPTO_CIPHER_GENERATE_IV_OUT_TAG_IV = 1 |
| 50 | }; |
| 51 | |
| 52 | /**************************************** |
| 53 | * cipher_set_iv operation definition |
| 54 | */ |
| 55 | |
| 56 | /* Mandatory fixed sized input parameters */ |
| 57 | struct __attribute__ ((__packed__)) ts_crypto_cipher_set_iv_in |
| 58 | { |
| 59 | uint32_t op_handle; |
| 60 | }; |
| 61 | |
| 62 | /* Variable length input parameter tags */ |
| 63 | enum |
| 64 | { |
| 65 | TS_CRYPTO_CIPHER_SET_IV_IN_TAG_IV = 1 |
| 66 | }; |
| 67 | |
| 68 | /**************************************** |
| 69 | * cipher_update operation definition |
| 70 | */ |
| 71 | |
| 72 | /* Mandatory fixed sized input parameters */ |
| 73 | struct __attribute__ ((__packed__)) ts_crypto_cipher_update_in |
| 74 | { |
| 75 | uint32_t op_handle; |
| 76 | }; |
| 77 | |
| 78 | /* Variable length input parameter tags */ |
| 79 | enum |
| 80 | { |
| 81 | TS_CRYPTO_CIPHER_UPDATE_IN_TAG_DATA = 1 |
| 82 | }; |
| 83 | |
| 84 | /* Variable length output parameter tags */ |
| 85 | enum |
| 86 | { |
| 87 | TS_CRYPTO_CIPHER_UPDATE_OUT_TAG_DATA = 1 |
| 88 | }; |
| 89 | |
| 90 | /**************************************** |
| 91 | * cipher_finish operation definition |
| 92 | */ |
| 93 | |
| 94 | /* Mandatory fixed sized input parameters */ |
| 95 | struct __attribute__ ((__packed__)) ts_crypto_cipher_finish_in |
| 96 | { |
| 97 | uint32_t op_handle; |
| 98 | }; |
| 99 | |
| 100 | /* Variable length output parameter tags */ |
| 101 | enum |
| 102 | { |
| 103 | TS_CRYPTO_CIPHER_FINISH_OUT_TAG_DATA = 1 |
| 104 | }; |
| 105 | |
| 106 | /**************************************** |
| 107 | * cipher_abort operation definition |
| 108 | */ |
| 109 | |
| 110 | /* Mandatory fixed sized input parameters */ |
| 111 | struct __attribute__ ((__packed__)) ts_crypto_cipher_abort_in |
| 112 | { |
| 113 | uint32_t op_handle; |
| 114 | }; |
| 115 | |
| 116 | #endif /* TS_CRYPTO_CIPHER_H */ |