Files
panda-meb/crypto/rsa.h
Robbe Derks d24971ef8a Communication refactor (#997)
* cleanup is_enumerated, rename comms and init spi

* big comms refactor, building now

* misra fixes

* more fixes

* misra try 3

* cleanup

* this belongs in a separate PR

* remove unneccesary file

* revert llspi changes

* this needs packing

* fix pedal usb

Co-authored-by: Comma Device <device@comma.ai>
2022-08-03 13:11:52 +02:00

59 lines
2.4 KiB
C

/* rsa.h
**
** Copyright 2008, The Android Open Source Project
**
** 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 Google Inc. 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 Google Inc. ``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 Google Inc. 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.
*/
#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_RSA_H_
#define SYSTEM_CORE_INCLUDE_MINCRYPT_RSA_H_
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#define RSANUMBYTES 128 /* 1024 bit key length */
#define RSANUMWORDS (RSANUMBYTES / sizeof(uint32_t))
typedef struct RSAPublicKey {
int len; /* Length of n[] in number of uint32_t */
uint32_t n0inv; /* -1 / n[0] mod 2^32 */
uint32_t n[RSANUMWORDS]; /* modulus as little endian array */
uint32_t rr[RSANUMWORDS]; /* R^2 as little endian array */
int exponent; /* 3 or 65537 */
} RSAPublicKey;
int RSA_verify(const RSAPublicKey *key,
const uint8_t* signature,
const int len,
const uint8_t* hash,
const int hash_len);
#ifdef __cplusplus
}
#endif
#endif // SYSTEM_CORE_INCLUDE_MINCRYPT_RSA_H_