| Soby Mathew | 1ae83bc | 2017-05-10 11:48:40 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #ifndef RSA_H |
| 8 | #define RSA_H |
| 9 | |
| 10 | /* |
| 11 | * All the includes that are needed for code using this module to |
| 12 | * compile correctly should be #included here. |
| 13 | */ |
| 14 | |
| 15 | #ifdef __cplusplus |
| 16 | extern "C" |
| 17 | { |
| 18 | #endif |
| 19 | |
| 20 | #include "cc_pal_types.h" |
| 21 | |
| 22 | /************************ Defines ******************************/ |
| 23 | |
| 24 | /* the modulus size ion bits */ |
| 25 | #define RSA_MOD_SIZE_IN_BITS 2048UL |
| 26 | #define RSA_MOD_SIZE_IN_BYTES (CALC_FULL_BYTES(RSA_MOD_SIZE_IN_BITS)) |
| 27 | #define RSA_MOD_SIZE_IN_WORDS (CALC_FULL_32BIT_WORDS(RSA_MOD_SIZE_IN_BITS)) |
| 28 | #define RSA_MOD_SIZE_IN_256BITS (RSA_MOD_SIZE_IN_WORDS/8) |
| 29 | #define RSA_EXP_SIZE_IN_BITS 17UL |
| 30 | #define RSA_EXP_SIZE_IN_BYTES (CALC_FULL_BYTES(RSA_EXP_SIZE_IN_BITS)) |
| 31 | |
| 32 | /* size of buffer for Barrett modulus tag NP, used in PKA algorithms */ |
| 33 | #define RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BITS 132 |
| 34 | #define RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BYTES (CALC_FULL_BYTES(RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BITS)) |
| 35 | #define RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_WORDS (CALC_FULL_32BIT_WORDS(RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BITS)) |
| 36 | |
| 37 | /* |
| 38 | * @brief The RSA_CalcNp calculates Np value and saves it into Np_ptr: |
| 39 | * |
| 40 | * |
| 41 | |
| 42 | * @param[in] hwBaseAddress - HW base address. Relevant for HW |
| 43 | * implementation, for SW it is ignored. |
| 44 | * @N_ptr[in] - The pointer to the modulus buffer. |
| 45 | * @Np_ptr[out] - pointer to Np vector buffer. Its size must be >= 160. |
| 46 | */ |
| 47 | void RSA_CalcNp(unsigned long hwBaseAddress, |
| 48 | uint32_t *N_ptr, |
| 49 | uint32_t *Np_ptr); |
| 50 | |
| 51 | #ifdef __cplusplus |
| 52 | } |
| 53 | #endif |
| 54 | |
| 55 | #endif |