/*
* cryptech.h
* ----------
* Memory map, access functions, and HAL for Cryptech cores.
*
* Authors: Joachim Strombergson, Paul Selkirk, Rob Austein
* Copyright (c) 2015, NORDUnet A/S All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the NORDUnet nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Each Cryptech core has a set of 4-byte registers, which are accessed
* through a 16-bit address. The address space is divided as follows:
* 3 bits segment selector | up to 8 segments
* 5 bits core selector | up to 32 cores/segment (see note below)
* 8 bits register selector | up to 256 registers/core (see modexp below)
*
* i.e, the address is structured as:
* sss ccccc rrrrrrrr
*
* The I2C and UART communication channels use this 16-bit address format
* directly in their read and write commands.
*
* The EIM communications channel translates this 16-bit address into a
* 32-bit memory-mapped address in the range 0x08000000..807FFFF:
* 00001000000000 sss 0 ccccc rrrrrrrr 00
*
* EIM, as implemented on the Novena, uses a 19-bit address space:
* Bits 18..16 are the semgent selector.
* Bits 15..10 are the core selector.
* Bits 9..2 are the register selector.
* Bits 1..0 are zero, because reads and writes are always word aligned.
*
* Note that EIM can support 64 cores per segment, but we sacrifice one bit
* in order to map it into a 16-bit address space.
*/
#ifndef _CRYPTECH_H_
#define _CRYPTECH_H_
/*
* Default sizes.
*/
#define CORE_SIZE (0x100)
#define SEGMENT_SIZE (0x20 * CORE_SIZE)
/*
* Segments.
*/
#define SEGMENT_OFFSET_GLOBALS (0 * SEGMENT_SIZE)
#define SEGMENT_OFFSET_HASHES (1 * SEGMENT_SIZE)
#define SEGMENT_OFFSET_RNGS (2 * SEGMENT_SIZE)
#define SEGMENT_OFFSET_CIPHERS (3 * SEGMENT_SIZE)
#define SEGMENT_OFFSET_MATH (4 * SEGMENT_SIZE)
/*
* Addresses and codes common to all cores.
*/
#define ADDR_NAME0 (0x00)
#define ADDR_NAME1 (0x01)
#define ADDR_VERSION (0x02)
#define ADDR_CTRL (0x08)
#define CTRL_INIT (1)
#define CTRL_NEXT (2)
#define ADDR_STATUS (0x09)
#define STATUS_READY (1)
#define STATUS_VALID (2)
/* A handy macro from cryptlib */
#ifndef bitsToBytes
#define bitsToBytes(x) (x / 8)
#endif
/*
* Board segment.
* Board-level registers and communication channel registers.
*/
#define BOARD_ADDR_BASE (SEGMENT_OFFSET_GLOBALS + (0 * CORE_SIZE))
#define BOARD_ADDR_NAME0 (BOARD_ADDR_BASE + ADDR_NAME0)
#define BOARD_ADDR_NAME1 (BOARD_ADDR_BASE + ADDR_NAME1)
#define BOARD_ADDR_VERSION (BOARD_ADDR_BASE + ADDR_VERSION)
#define BOARD_ADDR_DUMMY (BOARD_ADDR_BASE + 0xFF)
#define COMM_ADDR_BASE (SEGMENT_OFFSET_GLOBALS + (1 * CORE_SIZE))
#define COMM_ADDR_NAME0 (COMM_ADDR_BASE + ADDR_NAME0)
#define COMM_ADDR_NAME1 (COMM_ADDR_BASE + ADDR_NAME1)
#define COMM_ADDR_VERSION (COMM_ADDR_BASE + ADDR_VERSION)
/* Current name and version values */
#define NOVENA_BOARD_NAME0 "PVT1"
#define NOVENA_BOARD_NAME1 " "
#define NOVENA_BOARD_VERSION "0.10"
#define EIM_INTERFACE_NAME0 "eim "
#define EIM_INTERFACE_NAME1 " "
#define EIM_INTERFACE_VERSION "0.10"
#define I2C_INTERFACE_NAME0 "i2c "
#define I2C_INTERFACE_NAME1 " "
#define I2C_INTERFACE_VERSION "0.10"
/*
* Hashes segment.
*/
/* Addresses common to all hash cores */
#define ADDR_BLOCK (0x10)
#define ADDR_DIGEST (0x20) /* except SHA512 */
/* Addresses and codes for the specific hash cores */
#define SHA1_ADDR_BASE (SEGMENT_OFFSET_HASHES + (0 * CORE_SIZE))
#define SHA1_ADDR_NAME0 (SHA1_ADDR_BASE + ADDR_NAME0)
#define SHA1_ADDR_NAME1 (SHA1_ADDR_BASE + ADDR_NAME1)
#define SHA1_ADDR_VERSION (SHA1_ADDR_BASE + ADDR_VERSION)
#define SHA1_ADDR_CTRL (SHA1_ADDR_BASE + ADDR_CTRL)
#define SHA1_ADDR_STATUS (SHA1_ADDR_BASE + ADDR_STATUS)
#define SHA1_ADDR_BLOCK (SHA1_ADDR_BASE + ADDR_BLOCK)
#define SHA1_ADDR_DIGEST (SHA1_ADDR_BASE + ADDR_DIGEST)
#define SHA1_BLOCK_LEN bitsToBytes(512)
#define SHA1_LENGTH_LEN bitsToBytes(64)
#define SHA1_DIGEST_LEN bitsToBytes(160)
#define SHA256_ADDR_BASE (SEGMENT_OFFSET_HASHES + (1 * CORE_SIZE))
#define SHA256_ADDR_NAME0 (SHA256_ADDR_BASE + ADDR_NAME0)
#define SHA256_ADDR_NAME1 (SHA256_ADDR_BASE + ADDR_NAME1)
#define SHA256_ADDR_VERSION (SHA256_ADDR_BASE + ADDR_VERSION)
#define SHA256_ADDR_CTRL (SHA256_ADDR_BASE + ADDR_CTRL)
#define SHA256_ADDR_STATUS (SHA256_ADDR_BASE + ADDR_STATUS)
#define SHA256_ADDR_BLOCK (SHA256_ADDR_BASE + ADDR_BLOCK)
#define SHA256_ADDR_DIGEST (SHA256_ADDR_BASE + ADDR_DIGEST)
#define SHA256_BLOCK_LEN bitsToBytes(512)
#define SHA256_LENGTH_LEN bitsToBytes(64)
#define SHA256_DIGEST_LEN bitsToBytes(256)
#define SHA512_ADDR_BASE (SEGMENT_OFFSET_HASHES + (2 * CORE_SIZE))
#define SHA512_ADDR_NAME0 (SHA512_ADDR_BASE + ADDR_NAME0)
#define SHA512_ADDR_NAME1 (SHA512_ADDR_BASE + ADDR_NAME1)
#define SHA512_ADDR_VERSION (SHA512_ADDR_BASE + ADDR_VERSION)
#define SHA512_ADDR_CTRL (SHA512_ADDR_BASE + ADDR_CTRL)
#define SHA512_ADDR_STATUS (SHA512_ADDR_BASE + ADDR_STATUS)
#define SHA512_ADDR_BLOCK (SHA512_ADDR_BASE + ADDR_BLOCK)
#define SHA512_ADDR_DIGEST (SHA512_ADDR_BASE + 0x40)
#define SHA512_BLOCK_LEN bitsToBytes(1024)
#define SHA512_LENGTH_LEN bitsToBytes(128)
#define SHA512_224_DIGEST_LEN bitsToBytes(224)
#define SHA512_256_DIGEST_LEN bitsToBytes(256)
#define SHA384_DIGEST_LEN bitsToBytes(384)
#define SHA512_DIGEST_LEN bitsToBytes(512)
#define MODE_SHA_512_224 (0 << 2)
#define MODE_SHA_512_256 (1 << 2)
#define MODE_SHA_384 (2 << 2)
#define MODE_SHA_512 (3 << 2)
/* Current name and version values */
#define SHA1_NAME0 "sha1"
#define SHA1_NAME1 " "
#define SHA1_VERSION "0.50"
#define SHA256_NAME0 "sha2"
#define SHA256_NAME1 "-256"
#define SHA256_VERSION "0.80"
#define SHA512_NAME0 "sha2"
#define SHA512_NAME1 "-512"
#define SHA512_VERSION "0.80"
/*
* TRNG segment.
*/
/* addresses and codes for the TRNG cores */
#define TRNG_ADDR_BASE (SEGMENT_OFFSET_RNGS + (0x00 * CORE_SIZE))
#define TRNG_ADDR_NAME0 (TRNG_ADDR_BASE + ADDR_NAME0)
#define TRNG_ADDR_NAME1 (TRNG_ADDR_BASE + ADDR_NAME1)
#define TRNG_ADDR_VERSION (TRNG_ADDR_BASE + ADDR_VERSION)
#define TRNG_ADDR_CTRL (TRNG_ADDR_BASE + 0x10)
#define TRNG_CTRL_DISCARD (1)
#define TRNG_CTRL_TEST_MODE (2)
#define TRNG_ADDR_STATUS (TRNG_ADDR_BASE + 0x11)
/* No status bits defined (yet) */
#define TRNG_ADDR_DELAY (TRNG_ADDR_BASE + 0x13)
#define ENTROPY1_ADDR_BASE (SEGMENT_OFFSET_RNGS + (0x05 * CORE_SIZE))
#define ENTROPY1_ADDR_NAME0 (ENTROPY1_ADDR_BASE + ADDR_NAME0)
#define ENTROPY1_ADDR_NAME1 (ENTROPY1_ADDR_BASE + ADDR_NAME1)
#define ENTROPY1_ADDR_VERSION (ENTROPY1_ADDR_BASE + ADDR_VERSION)
#define ENTROPY1_ADDR_CTRL (ENTROPY1_ADDR_BASE + 0x10)
#define ENTROPY1_CTRL_ENABLE (1)
#define ENTROPY1_ADDR_STATUS (ENTROPY1_ADDR_BASE + 0x11)
#define ENTROPY1_STATUS_VALID (1)
#define ENTROPY1_ADDR_ENTROPY (ENTROPY1_ADDR_BASE + 0x20)
#define ENTROPY1_ADDR_DELTA (ENTROPY1_ADDR_BASE + 0x30)
#define ENTROPY2_ADDR_BASE (SEGMENT_OFFSET_RNGS + (0x06 * CORE_SIZE))
#define ENTROPY2_ADDR_NAME0 (ENTROPY2_ADDR_BASE + ADDR_NAME0)
#define ENTROPY2_ADDR_NAME1 (ENTROPY2_ADDR_BASE + ADDR_NAME1)
#define ENTROPY2_ADDR_VERSION (ENTROPY2_ADDR_BASE + ADDR_VERSION)
#define ENTROPY2_ADDR_CTRL (ENTROPY2_ADDR_BASE + 0x10)
#define ENTROPY2_CTRL_ENABLE (1)
#define ENTROPY2_ADDR_STATUS (ENTROPY2_ADDR_BASE + 0x11)
#define ENTROPY2_STATUS_VALID (1)
#define ENTROPY2_ADDR_OPA (ENTROPY2_ADDR_BASE + 0x18)
#define ENTROPY2_ADDR_OPB (ENTROPY2_ADDR_BASE + 0x19)
#define ENTROPY2_ADDR_ENTROPY (ENTROPY2_ADDR_BASE + 0x20)
#define ENTROPY2_ADDR_RAW (ENTROPY2_ADDR_BASE + 0x21)
#define ENTROPY2_ADDR_ROSC (ENTROPY2_ADDR_BASE + 0x22)
#define MIXER_ADDR_BASE (SEGMENT_OFFSET_RNGS + (0x0a * CORE_SIZE))
#define MIXER_ADDR_NAME0 (MIXER_ADDR_BASE + ADDR_NAME0)
#define MIXER_ADDR_NAME1 (MIXER_ADDR_BASE + ADDR_NAME1)
#define MIXER_ADDR_VERSION (MIXER_ADDR_BASE + ADDR_VERSION)
#define MIXER_ADDR_CTRL (MIXER_ADDR_BASE + 0x10)
#define MIXER_CTRL_ENABLE (1)
#define MIXER_CTRL_RESTART (2)
#define MIXER_ADDR_STATUS (MIXER_ADDR_BASE + 0x11)
/* No status bits defined (yet) */
#define MIXER_ADDR_TIMEOUT (MIXER_ADDR_BASE + 0x20)
#define CSPRNG_ADDR_BASE (SEGMENT_OFFSET_RNGS + (0x0b * CORE_SIZE))
#define CSPRNG_ADDR_NAME0 (CSPRNG_ADDR_BASE + ADDR_NAME0)
#define CSPRNG_ADDR_NAME1 (CSPRNG_ADDR_BASE + ADDR_NAME1)
#define CSPRNG_ADDR_VERSION (CSPRNG_ADDR_BASE + ADDR_VERSION)
#define CSPRNG_ADDR_CTRL (CSPRNG_ADDR_BASE + 0x10)
#define CSPRNG_CTRL_ENABLE (1)
#define CSPRNG_CTRL_SEED (2)
#define CSPRNG_ADDR_STATUS (CSPRNG_ADDR_BASE + 0x11)
#define CSPRNG_STATUS_VALID (1)
#define CSPRNG_ADDR_RANDOM (CSPRNG_ADDR_BASE + 0x20)
#define CSPRNG_ADDR_NROUNDS (CSPRNG_ADDR_BASE + 0x40)
#define CSPRNG_ADDR_NBLOCKS_LO (CSPRNG_ADDR_BASE + 0x41)
#define CSPRNG_ADDR_NBLOCKS_HI (CSPRNG_ADDR_BASE + 0x42)
/* Current name and version values */
#define TRNG_NAME0 "trng"
#define TRNG_NAME1 " "
#define TRNG_VERSION "0.50"
#define AVALANCHE_ENTROPY_NAME0 "extn"
#define AVALANCHE_ENTROPY_NAME1 "oise"
#define AVALANCHE_ENTROPY_VERSION "0.10"
#define ROSC_ENTROPY_NAME0 "rosc"
#define ROSC_ENTROPY_NAME1 " ent"
#define ROSC_ENTROPY_VERSION "0.10"
#define CSPRNG_NAME0 "cspr"
#define CSPRNG_NAME1 "ng "
#define CSPRNG_VERSION "0.50"
/*
* CIPHERS segment.
*/
/* AES core */
#define AES_ADDR_BASE (SEGMENT_OFFSET_CIPHERS + (0 * CORE_SIZE))
#define AES_ADDR_NAME0 (AES_ADDR_BASE + ADDR_NAME0)
#define AES_ADDR_NAME1 (AES_ADDR_BASE + ADDR_NAME1)
#define AES_ADDR_VERSION (AES_ADDR_BASE + ADDR_VERSION)
#define AES_ADDR_CTRL (AES_ADDR_BASE + ADDR_CTRL)
#define AES_ADDR_STATUS (AES_ADDR_BASE + ADDR_STATUS)
#define AES_ADDR_CONFIG (AES_ADDR_BASE + 0x0a)
#define AES_CONFIG_ENCDEC (1)
#define AES_CONFIG_KEYLEN (2)
#define AES_ADDR_KEY0 (AES_ADDR_BASE + 0x10)
#define AES_ADDR_KEY1 (AES_ADDR_BASE + 0x11)
#define AES_ADDR_KEY2 (AES_ADDR_BASE + 0x12)
#define AES_ADDR_KEY3 (AES_ADDR_BASE + 0x13)
#define AES_ADDR_KEY4 (AES_ADDR_BASE + 0x14)
#define AES_ADDR_KEY5 (AES_ADDR_BASE + 0x15)
#define AES_ADDR_KEY6 (AES_ADDR_BASE + 0x16)
#define AES_ADDR_KEY7 (AES_ADDR_BASE + 0x17)
#define AES_ADDR_BLOCK0 (AES_ADDR_BASE + 0x20)
#define AES_ADDR_BLOCK1 (AES_ADDR_BASE + 0x21)
#define AES_ADDR_BLOCK2 (AES_ADDR_BASE + 0x22)
#define AES_ADDR_BLOCK3 (AES_ADDR_BASE + 0x23)
#define AES_ADDR_RESULT0 (AES_ADDR_BASE + 0x30)
#define AES_ADDR_RESULT1 (AES_ADDR_BASE + 0x31)
#define AES_ADDR_RESULT2 (AES_ADDR_BASE + 0x32)
#define AES_ADDR_RESULT3 (AES_ADDR_BASE + 0x33)
/* Current name and version values */
#define AES_CORE_NAME0 "aes "
#define AES_CORE_NAME1 " "
#define AES_CORE_VERSION "0.80"
/* Chacha core */
#define CHACHA_ADDR_BASE (SEGMENT_OFFSET_CIPHERS + (1 * CORE_SIZE))
#define CHACHA_ADDR_NAME0 (CHACHA_ADDR_BASE + ADDR_NAME0)
#define CHACHA_ADDR_NAME1 (CHACHA_ADDR_BASE + ADDR_NAME1)
#define CHACHA_ADDR_VERSION (CHACHA_ADDR_BASE + ADDR_VERSION)
#define CHACHA_ADDR_CTRL (CHACHA_ADDR_BASE + ADDR_CTRL)
#define CHACHA_ADDR_STATUS (CHACHA_ADDR_BASE + ADDR_STATUS)
#define CHACHA_ADDR_KEYLEN (CHACHA_ADDR_BASE + 0x0a)
#define CHACHA_KEYLEN (1)
#define CHACHA_ADDR_ROUNDS (CHACHA_ADDR_BASE + 0x0b)
#define CHACHA_ADDR_KEY0 (CHACHA_ADDR_BASE + 0x10)
#define CHACHA_ADDR_KEY1 (CHACHA_ADDR_BASE + 0x11)
#define CHACHA_ADDR_KEY2 (CHACHA_ADDR_BASE + 0x12)
#define CHACHA_ADDR_KEY3 (CHACHA_ADDR_BASE + 0x13)
#define CHACHA_ADDR_KEY4 (CHACHA_ADDR_BASE + 0x14)
#define CHACHA_ADDR_KEY5 (CHACHA_ADDR_BASE + 0x15)
#define CHACHA_ADDR_KEY6 (CHACHA_ADDR_BASE + 0x16)
#define CHACHA_ADDR_KEY7 (CHACHA_ADDR_BASE + 0x17)
#define CHACHA_ADDR_IV0 (CHACHA_ADDR_BASE + 0x20)
#define CHACHA_ADDR_IV1 (CHACHA_ADDR_BASE + 0x21)
#define CHACHA_ADDR_DATA_IN0 (CHACHA_ADDR_BASE + 0x40)
#define CHACHA_ADDR_DATA_IN1 (CHACHA_ADDR_BASE + 0x41)
#define CHACHA_ADDR_DATA_IN2 (CHACHA_ADDR_BASE + 0x42)
#define CHACHA_ADDR_DATA_IN3 (CHACHA_ADDR_BASE + 0x43)
#define CHACHA_ADDR_DATA_IN4 (CHACHA_ADDR_BASE + 0x44)
#define CHACHA_ADDR_DATA_IN5 (CHACHA_ADDR_BASE + 0x45)
#define CHACHA_ADDR_DATA_IN6 (CHACHA_ADDR_BASE + 0x46)
#define CHACHA_ADDR_DATA_IN7 (CHACHA_ADDR_BASE + 0x47)
#define CHACHA_ADDR_DATA_IN8 (CHACHA_ADDR_BASE + 0x48)
#define CHACHA_ADDR_DATA_IN9 (CHACHA_ADDR_BASE + 0x49)
#define CHACHA_ADDR_DATA_IN10 (CHACHA_ADDR_BASE + 0x4a)
#define CHACHA_ADDR_DATA_IN11 (CHACHA_ADDR_BASE + 0x4b)
#define CHACHA_ADDR_DATA_IN12 (CHACHA_ADDR_BASE + 0x4c)
#define CHACHA_ADDR_DATA_IN13 (CHACHA_ADDR_BASE + 0x4d)
#define CHACHA_ADDR_DATA_IN14 (CHACHA_ADDR_BASE + 0x4e)
#define CHACHA_ADDR_DATA_IN15 (CHACHA_ADDR_BASE + 0x4f)
#define CHACHA_ADDR_DATA_OUT0 (CHACHA_ADDR_BASE + 0x80)
#define CHACHA_ADDR_DATA_OUT1 (CHACHA_ADDR_BASE + 0x81)
#define CHACHA_ADDR_DATA_OUT2 (CHACHA_ADDR_BASE + 0x82)
#define CHACHA_ADDR_DATA_OUT3 (CHACHA_ADDR_BASE + 0x83)
#define CHACHA_ADDR_DATA_OUT4 (CHACHA_ADDR_BASE + 0x84)
#define CHACHA_ADDR_DATA_OUT5 (CHACHA_ADDR_BASE + 0x85)
#define CHACHA_ADDR_DATA_OUT6 (CHACHA_ADDR_BASE + 0x86)
#define CHACHA_ADDR_DATA_OUT7 (CHACHA_ADDR_BASE + 0x87)
#define CHACHA_ADDR_DATA_OUT8 (CHACHA_ADDR_BASE + 0x88)
#define CHACHA_ADDR_DATA_OUT9 (CHACHA_ADDR_BASE + 0x89)
#define CHACHA_ADDR_DATA_OUT10 (CHACHA_ADDR_BASE + 0x8a)
#define CHACHA_ADDR_DATA_OUT11 (CHACHA_ADDR_BASE + 0x8b)
#define CHACHA_ADDR_DATA_OUT12 (CHACHA_ADDR_BASE + 0x8c)
#define CHACHA_ADDR_DATA_OUT13 (CHACHA_ADDR_BASE + 0x8d)
#define CHACHA_ADDR_DATA_OUT14 (CHACHA_ADDR_BASE + 0x8e)
#define CHACHA_ADDR_DATA_OUT15 (CHACHA_ADDR_BASE + 0x8f)
/* Current name and version values */
#define CHACHA_NAME0 "chac"
#define CHACHA_NAME1 "ha "
#define CHACHA_VERSION "0.80"
/*
* MATH segment.
*/
/* Modexp core */
#define MODEXP_ADDR_BASE (SEGMENT_OFFSET_MATH + (0x00 * CORE_SIZE))
#define MODEXP_ADDR_NAME0 (MODEXP_ADDR_BASE + ADDR_NAME0)
#define MODEXP_ADDR_NAME1 (MODEXP_ADDR_BASE + ADDR_NAME1)
#define MODEXP_ADDR_VERSION (MODEXP_ADDR_BASE + ADDR_VERSION)
#define MODEXP_ADDR_CTRL (MODEXP_ADDR_BASE + ADDR_CTRL)
#define MODEXP_CTRL_INIT_BIT (1)
#define MODEXP_CTRL_NEXT_BIT (2)
#define MODEXP_ADDR_STATUS (MODEXP_ADDR_BASE + ADDR_STATUS)
#define MODEXP_ADDR_DELAY (MODEXP_ADDR_BASE + 0x13)
#define MODEXP_STATUS_READY (1)
#define MODEXP_MODULUS_LENGTH (MODEXP_ADDR_BASE + 0x20)
#define MODEXP_EXPONENT_LENGTH (MODEXP_ADDR_BASE + 0x21)
#define MODEXP_LENGTH (MODEXP_ADDR_BASE + 0x22)
#define MODEXP_MODULUS_PTR_RST (MODEXP_ADDR_BASE + 0x30)
#define MODEXP_MODULUS_DATA (MODEXP_ADDR_BASE + 0x31)
#define MODEXP_EXPONENT_PTR_RST (MODEXP_ADDR_BASE + 0x40)
#define MODEXP_EXPONENT_DATA (MODEXP_ADDR_BASE + 0x41)
#define MODEXP_MESSAGE_PTR_RST (MODEXP_ADDR_BASE + 0x50)
#define MODEXP_MESSAGE_DATA (MODEXP_ADDR_BASE + 0x51)
#define MODEXP_RESULT_PTR_RST (MODEXP_ADDR_BASE + 0x60)
#define MODEXP_RESULT_DATA (MODEXP_ADDR_BASE + 0x61)
#define MODEXP_NAME0 "mode"
#define MODEXP_NAME1 "xp "
#define MODEXP_VERSION "0.51"
/*
* C API error codes. Defined in this form so we can keep the tokens
* and error strings together. See errorstrings.c.
*/
#define HAL_ERROR_LIST \
DEFINE_HAL_ERROR(HAL_OK, "No error") \
DEFINE_HAL_ERROR(HAL_ERROR_BAD_ARGUMENTS, "Bad arguments given") \
DEFINE_HAL_ERROR(HAL_ERROR_UNSUPPORTED_KEY, "Unsupported key type or key length") \
DEFINE_HAL_ERROR(HAL_ERROR_IO_SETUP_FAILED, "Could not set up I/O with FPGA") \
DEFINE_HAL_ERROR(HAL_ERROR_IO_TIMEOUT, "I/O with FPGA timed out") \
DEFINE_HAL_ERROR(HAL_ERROR_IO_UNEXPECTED, "Unexpected response from FPGA") \
DEFINE_HAL_ERROR(HAL_ERROR_IO_OS_ERROR, "Operating system error talking to FPGA") \
DEFINE_HAL_ERROR(HAL_ERROR_IO_BAD_COUNT, "Bad byte count") \
DEFINE_HAL_ERROR(HAL_ERROR_CSPRNG_BROKEN, "CSPRNG is returning nonsense") \
DEFINE_HAL_ERROR(HAL_ERROR_KEYWRAP_BAD_MAGIC, "Bad magic number while unwrapping key") \
DEFINE_HAL_ERROR(HAL_ERROR_KEYWRAP_BAD_LENGTH, "Length out of range while unwrapping key") \
DEFINE_HAL_ERROR(HAL_ERROR_KEYWRAP_BAD_PADDING, "Non-zero padding detected unwrapping key") \
DEFINE_HAL_ERROR(HAL_ERROR_IMPOSSIBLE, "\"Impossible\" error") \
DEFINE_HAL_ERROR(HAL_ERROR_ALLOCATION_FAILURE, "Memory allocation failed") \
DEFINE_HAL_ERROR(HAL_ERROR_RESULT_TOO_LONG, "Result too long for buffer") \
DEFINE_HAL_ERROR(HAL_ERROR_ASN1_PARSE_FAILED, "ASN.1 parse failed") \
END_OF_HAL_ERROR_LIST
/* Marker to forestall silly line continuation errors */
#define END_OF_HAL_ERROR_LIST
/* Define the error code enum here. See errorstrings.c for the text strings. */
#define DEFINE_HAL_ERROR(_code_,_text_) _code_,
typedef enum { HAL_ERROR_LIST N_HAL_ERRORS } hal_error_t;
#undef DEFINE_HAL_ERROR
/*
* Public functions.
*/
#include <stdint.h>
#include <sys/types.h>
extern const char *hal_error_string(const hal_error_t err);
/*
* Public I/O functions.
*/
extern void hal_io_set_debug(int onoff);
extern hal_error_t hal_io_write(off_t offset, const uint8_t *buf, size_t len);
extern hal_error_t hal_io_read(off_t offset, uint8_t *buf, size_t len);
extern hal_error_t hal_io_expected(off_t offset, const uint8_t *expected, size_t len);
extern hal_error_t hal_io_init(off_t offset);
extern hal_error_t hal_io_next(off_t offset);
extern hal_error_t hal_io_wait(off_t offset, uint8_t status, int *count);
extern hal_error_t hal_io_wait_ready(off_t offset);
extern hal_error_t hal_io_wait_valid(off_t offset);
/*
* Higher level public API.
*/
/*
* Get random bytes from the CSPRNG.
*/
extern hal_error_t hal_get_random(void *buffer, const size_t length);
/*
* Hash and HMAC API.
*/
/*
* Longest hash block and digest we support at the moment.
*/
#define HAL_MAX_HASH_BLOCK_LENGTH SHA512_BLOCK_LEN
#define HAL_MAX_HASH_DIGEST_LENGTH SHA512_DIGEST_LEN
/*
* Public information about a digest algorithm.
*
* The _state_length values in the descriptor and the typed opaque
* pointers in the API are all intended to hide internal details of
* the implementation while making memory allocation the caller's
* problem.
*/
typedef struct {
size_t block_length;
size_t digest_length;
size_t hash_state_length;
size_t hmac_state_length;
const uint8_t * const digest_algorithm_id;
size_t digest_algorithm_id_length;
const void *driver;
} hal_hash_descriptor_t;
/*
* Typed opaque pointers to internal state.
*/
typedef struct { void *state; } hal_hash_state_t;
typedef struct { void *state; } hal_hmac_state_t;
/*
* Supported digest algorithms. These are one-element arrays so that
* they can be used as constant pointers.
*/
extern const hal_hash_descriptor_t hal_hash_sha1[1];
extern const hal_hash_descriptor_t hal_hash_sha256[1];
extern const hal_hash_descriptor_t hal_hash_sha512_224[1];
extern const hal_hash_descriptor_t hal_hash_sha512_256[1];
extern const hal_hash_descriptor_t hal_hash_sha384[1];
extern const hal_hash_descriptor_t hal_hash_sha512[1];
/*
* Hash and HMAC functions.
*/
extern void hal_hash_set_debug(int onoff);
extern hal_error_t hal_hash_core_present(const hal_hash_descriptor_t * const descriptor);
extern hal_error_t hal_hash_initialize(const hal_hash_descriptor_t * const descriptor,
hal_hash_state_t *state,
void *state_buffer, const size_t state_length);
extern hal_error_t hal_hash_update(const hal_hash_state_t state,
const uint8_t * data, const size_t length);
extern hal_error_t hal_hash_finalize(const hal_hash_state_t state,
uint8_t *digest, const size_t length);
extern hal_error_t hal_hmac_initialize(const hal_hash_descriptor_t * const descriptor,
hal_hmac_state_t *state,
void *state_buffer, const size_t state_length,
const uint8_t * const key, const size_t key_length);
extern hal_error_t hal_hmac_update(const hal_hmac_state_t state,
const uint8_t * data, const size_t length);
extern hal_error_t hal_hmac_finalize(const hal_hmac_state_t state,
uint8_t *hmac, const size_t length);
/*
* AES key wrap functions.
*/
extern hal_error_t hal_aes_keywrap(const uint8_t *kek, const size_t kek_length,
const uint8_t *plaintext, const size_t plaintext_length,
uint8_t *cyphertext, size_t *ciphertext_length);
extern hal_error_t hal_aes_keyunwrap(const uint8_t *kek, const size_t kek_length,
const uint8_t *ciphertext, const size_t ciphertext_length,
unsigned char *plaintext, size_t *plaintext_length);
extern size_t hal_aes_keywrap_ciphertext_length(const size_t plaintext_length);
/*
* PBKDF2 function. Uses HMAC with the specified digest algorithm as
* the pseudo-random function (PRF).
*/
extern hal_error_t hal_pbkdf2(const hal_hash_descriptor_t * const descriptor,
const uint8_t * const password, const size_t password_length,
const uint8_t * const salt, const size_t salt_length,
uint8_t * derived_key, const size_t derived_key_length,
unsigned iterations_desired);
/*
* Modular exponentiation.
*/
extern void hal_modexp_set_debug(const int onoff);
extern hal_error_t hal_modexp(const uint8_t * const msg, const size_t msg_len, /* Message */
const uint8_t * const exp, const size_t exp_len, /* Exponent */
const uint8_t * const mod, const size_t mod_len, /* Modulus */
uint8_t * result, const size_t result_len);
/*
* RSA.
*/
typedef enum { HAL_RSA_PRIVATE, HAL_RSA_PUBLIC } hal_rsa_key_type_t;
typedef struct { void *key; } hal_rsa_key_t;
extern const size_t hal_rsa_key_t_size;
extern void hal_rsa_set_debug(const int onoff);
extern void hal_rsa_set_blinding(const int onoff);
extern hal_error_t hal_rsa_key_load(const hal_rsa_key_type_t type,
hal_rsa_key_t *key,
void *keybuf, const size_t keybuf_len,
const uint8_t * const n, const size_t n_len,
const uint8_t * const e, const size_t e_len,
const uint8_t * const d, const size_t d_len,
const uint8_t * const p, const size_t p_len,
const uint8_t * const q, const size_t q_len,
const uint8_t * const u, const size_t u_len,
const uint8_t * const dP, const size_t dP_len,
const uint8_t * const dQ, const size_t dQ_len);
extern hal_error_t hal_rsa_key_get_modulus(hal_rsa_key_t key,
uint8_t *modulus,
size_t *modulus_len,
const size_t modulus_max);
extern hal_error_t hal_rsa_key_get_public_exponent(hal_rsa_key_t key,
uint8_t *public_exponent,
size_t *public_exponent_len,
const size_t public_exponent_max);
extern void hal_rsa_key_clear(hal_rsa_key_t key);
extern hal_error_t hal_rsa_encrypt(hal_rsa_key_t key,
const uint8_t * const input, const size_t input_len,
uint8_t * output, const size_t output_len);
extern hal_error_t hal_rsa_decrypt(hal_rsa_key_t key,
const uint8_t * const input, const size_t input_len,
uint8_t * output, const size_t output_len);
extern hal_error_t hal_rsa_key_gen(hal_rsa_key_t *key,
void *keybuf, const size_t keybuf_len,
const unsigned key_length,
const uint8_t * const public_exponent, const size_t public_exponent_len);
extern hal_error_t hal_rsa_key_to_der(hal_rsa_key_t key,
uint8_t *der, size_t *der_len, const size_t der_max);
extern size_t hal_rsa_key_to_der_len(hal_rsa_key_t key);
extern hal_error_t hal_rsa_key_from_der(hal_rsa_key_t *key,
void *keybuf, const size_t keybuf_len,
const uint8_t * const der, const size_t der_len);
#endif /* _CRYPTECH_H_ */
/*
* Local variables:
* indent-tabs-mode: nil
* End:
*/
