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58 lines
1.4 KiB
58 lines
1.4 KiB
4 months ago
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/*
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* Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef RSA_H
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#define RSA_H
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/*
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* All the includes that are needed for code using this module to
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* compile correctly should be #included here.
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*/
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include "cc_pal_types.h"
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/************************ Defines ******************************/
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/* the modulus size in bits */
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#if (KEY_SIZE == 2048)
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#define RSA_MOD_SIZE_IN_BITS 2048UL
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#elif (KEY_SIZE == 3072)
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#define RSA_MOD_SIZE_IN_BITS 3072UL
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#else
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#error Unsupported CryptoCell key size requested
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#endif
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#define RSA_MOD_SIZE_IN_BYTES (CALC_FULL_BYTES(RSA_MOD_SIZE_IN_BITS))
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#define RSA_MOD_SIZE_IN_WORDS (CALC_FULL_32BIT_WORDS(RSA_MOD_SIZE_IN_BITS))
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#define RSA_MOD_SIZE_IN_256BITS (RSA_MOD_SIZE_IN_WORDS/8)
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#define RSA_EXP_SIZE_IN_BITS 17UL
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#define RSA_EXP_SIZE_IN_BYTES (CALC_FULL_BYTES(RSA_EXP_SIZE_IN_BITS))
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/*
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* @brief The RSA_CalcNp calculates Np value and saves it into Np_ptr:
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*
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*
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* @param[in] hwBaseAddress - HW base address. Relevant for HW
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* implementation, for SW it is ignored.
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* @N_ptr[in] - The pointer to the modulus buffer.
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* @Np_ptr[out] - pointer to Np vector buffer. Its size must be >= 160.
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*/
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void RSA_CalcNp(unsigned long hwBaseAddress,
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uint32_t *N_ptr,
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uint32_t *Np_ptr);
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#ifdef __cplusplus
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}
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#endif
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#endif
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