1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _EMBEDDED_RSA_H_ 30 #define _EMBEDDED_RSA_H_ 31 32 #include <inttypes.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #define RSANUMBYTES 256 /* 2048 bit key length */ 39 #define RSANUMWORDS (RSANUMBYTES / sizeof(uint32_t)) 40 41 typedef struct RSAPublicKey { 42 int len; /* Length of n[] in number of uint32_t */ 43 uint32_t n0inv; /* -1 / n[0] mod 2^32 */ 44 uint32_t n[RSANUMWORDS]; /* modulus as little endian array */ 45 uint32_t rr[RSANUMWORDS]; /* R^2 as little endian array */ 46 } RSAPublicKey; 47 48 int RSA_verify(RSAPublicKey *key, 49 const uint8_t* signature, 50 const int len, 51 const uint8_t* sha); 52 53 #ifdef __cplusplus 54 } 55 #endif 56 57 #endif 58
