| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | #ifndef _RSA_H |
| 2 | #define _RSA_H |
| 3 | |
| 4 | #include <errno.h> |
| 5 | #include "image.h" |
| 6 | |
| 7 | #define RSA2048_BYTES (2048 / 8) |
| 8 | #define RSA4096_BYTES (4096 / 8) |
| 9 | |
| 10 | /* This is the minimum/maximum key size we support, in bits */ |
| 11 | #define RSA_MIN_KEY_BITS 2048 |
| 12 | #define RSA_MAX_KEY_BITS 4096 |
| 13 | |
| 14 | /* This is the maximum signature length that we support, in bits */ |
| 15 | #define RSA_MAX_SIG_BITS 4096 |
| 16 | |
| 17 | struct key_prop { |
| 18 | |
| 19 | const void *rr; |
| 20 | const void *modulus; |
| 21 | const void *public_exponent; |
| 22 | uint64_t n0inv; |
| 23 | int num_bits; |
| 24 | uint32_t exp_len; |
| 25 | }; |
| 26 | |
| 27 | int rsa_verify(struct sig_info *info, |
| 28 | const struct fdt_region region[], int region_count, |
| 29 | uint8_t *sig, uint sig_len); |
| 30 | void get_pubkey_info(struct key_prop *pubkey, const void *blob,int node, |
| 31 | int *len); |
| 32 | |
| 33 | #endif |