| /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef VBOOT_REFERENCE_RSA_H_ |
| #define VBOOT_REFERENCE_RSA_H_ |
| |
| #include <inttypes.h> |
| |
| #define RSA1024NUMBYTES 128 /* 1024 bit key length */ |
| #define RSA2048NUMBYTES 256 /* 2048 bit key length */ |
| #define RSA4096NUMBYTES 512 /* 4096 bit key length */ |
| #define RSA8192NUMBYTES 1024 /* 8192 bit key length */ |
| |
| #define RSA1024NUMWORDS (RSA1024NUMBYTES / sizeof(uint32_t)) |
| #define RSA2048NUMWORDS (RSA2048NUMBYTES / sizeof(uint32_t)) |
| #define RSA4096NUMWORDS (RSA4096NUMBYTES / sizeof(uint32_t)) |
| #define RSA8192NUMWORDS (RSA8192NUMBYTES / 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; /* modulus as little endian array */ |
| uint32_t* rr; /* R^2 as little endian array */ |
| } RSAPublicKey; |
| |
| /* Verify a RSA PKCS1.5 signature [sig] of [sig_type] and length [sig_len] |
| * against an expected [hash] using [key]. Returns 0 on failure, 1 on success. |
| */ |
| int RSAVerify(const RSAPublicKey *key, |
| const uint8_t* sig, |
| const int sig_len, |
| const uint8_t sig_type, |
| const uint8_t* hash); |
| |
| #endif /* VBOOT_REFERENCE_RSA_H_ */ |