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RSA Accelerator: Add mod_exp, refactor to avoid memory allocation & copying

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Not fully working at the moment, mod_exp has a bug.
This commit is contained in:
Angus Gratton 2016-09-20 21:24:58 +10:00
parent 6b3bc4d8c5
commit 9632c8e56c
4 changed files with 502 additions and 611 deletions
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37
components/esp32/include/soc/hwcrypto_reg.h Normal file
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@ -0,0 +1,37 @@
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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.
#ifndef __HWCRYPTO_REG_H__
#define __HWCRYPTO_REG_H__
#include "soc.h"
/* registers for RSA acceleration via Multiple Precision Integer ops */
#define RSA_MEM_M_BLOCK_BASE ((DR_REG_RSA_BASE)+0x000)
/* RB & Z use the same memory block, depending on phase of operation */
#define RSA_MEM_RB_BLOCK_BASE ((DR_REG_RSA_BASE)+0x200)
#define RSA_MEM_Z_BLOCK_BASE ((DR_REG_RSA_BASE)+0x200)
#define RSA_MEM_Y_BLOCK_BASE ((DR_REG_RSA_BASE)+0x400)
#define RSA_MEM_X_BLOCK_BASE ((DR_REG_RSA_BASE)+0x600)
#define RSA_M_DASH_REG (DR_REG_RSA_BASE + 0x800)
#define RSA_MODEXP_MODE_REG (DR_REG_RSA_BASE + 0x804)
#define RSA_START_MODEXP_REG (DR_REG_RSA_BASE + 0x808)
#define RSA_MULT_MODE_REG (DR_REG_RSA_BASE + 0x80c)
#define RSA_MULT_START_REG (DR_REG_RSA_BASE + 0x810)
#define RSA_INTERRUPT_REG (DR_REG_RSA_BASE + 0X814)
#define RSA_CLEAN_ADDR (DR_REG_RSA_BASE + 0X818)
#endif

1
components/esp32/include/soc/soc.h
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@ -141,6 +141,7 @@
//}}
#define DR_REG_DPORT_BASE 0x3ff00000
#define DR_REG_RSA_BASE 0x3ff02000
#define DR_REG_UART_BASE 0x3ff40000
#define DR_REG_SPI1_BASE 0x3ff42000
#define DR_REG_SPI0_BASE 0x3ff43000

1043
components/mbedtls/port/esp_bignum.c
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File diff suppressed because it is too large Load Diff

2
components/mbedtls/port/include/mbedtls/esp_config.h
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@ -251,7 +251,7 @@
Uncommenting these macros will use the hardware-accelerated
implementations.
*/
//#define MBEDTLS_MPI_EXP_MOD_ALT
#define MBEDTLS_MPI_EXP_MOD_ALT
#define MBEDTLS_MPI_MUL_MPI_ALT
/**