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https://github.com/ARM-software/arm-trusted-firmware.git
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76f3c7dc8b
Add support for multiple Cryptocell revisions which use different APIs. This commit only refactors the existing code in preperation to the addition of another Cryptocell revisions later on. Signed-off-by: Gilad Ben-Yossef <gilad.benyossef@arm.com> Change-Id: I16d80b31afb6edd56dc645fee5ea619cc74f09b6
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
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* Copyright (c) 2017, 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 ion bits */
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#define RSA_MOD_SIZE_IN_BITS 2048UL
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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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/* size of buffer for Barrett modulus tag NP, used in PKA algorithms */
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#define RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BITS 132
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#define RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BYTES (CALC_FULL_BYTES(RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BITS))
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#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))
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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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