diff options
Diffstat (limited to 'chip/g/dcrypto/internal.h')
| -rw-r--r-- | chip/g/dcrypto/internal.h | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/chip/g/dcrypto/internal.h b/chip/g/dcrypto/internal.h index 5eb76ecc8a..279b2798e7 100644 --- a/chip/g/dcrypto/internal.h +++ b/chip/g/dcrypto/internal.h @@ -3,19 +3,43 @@ * found in the LICENSE file. */ -/* - * Crypto wrapper library for CR50. - */ -#ifndef EC_BOARD_CR50_DCRYPTO_INTERNAL_H_ -#define EC_BOARD_CR50_DCRYPTO_INTERNAL_H_ +#ifndef __EC_CHIP_G_DCRYPTO_INTERNAL_H +#define __EC_CHIP_G_DCRYPTO_INTERNAL_H + +#include <inttypes.h> #include "common.h" +#include "sha1.h" +#include "sha256.h" #define CTRL_CTR_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) #define CTRL_ENABLE 1 #define CTRL_ENCRYPT 1 #define CTRL_NO_SOFT_RESET 0 +struct HASH_CTX; /* Forward declaration. */ + +struct HASH_VTAB { + void (* const update)(struct HASH_CTX *, const uint8_t *, uint32_t); + const uint8_t *(* const final)(struct HASH_CTX *); + const uint8_t *(* const hash)(const uint8_t *, uint32_t, uint8_t *); + uint32_t size; +}; + +struct HASH_CTX { + const struct HASH_VTAB *vtab; + union { + uint8_t buf[64]; + struct sha1_ctx sw_sha1; + struct sha256_ctx sw_sha256; + } u; +}; + +enum sha_mode { + SHA1_MODE = 0, + SHA256_MODE = 1 +}; + /* * Use this structure to avoid alignment problems with input and output * pointers. @@ -24,4 +48,15 @@ struct access_helper { uint32_t udata; } __packed; -#endif /* ! EC_BOARD_CR50_DCRYPTO_INTERNAL_H_ */ +#ifndef SECTION_IS_RO +int dcrypto_grab_sha_hw(void); +void dcrypto_release_sha_hw(void); +#endif +void dcrypto_sha_hash(enum sha_mode mode, const uint8_t *data, + uint32_t n, uint8_t *digest); +void dcrypto_sha_init(enum sha_mode mode); +void dcrypto_sha_update(struct HASH_CTX *unused, + const uint8_t *data, uint32_t n); +void dcrypto_sha_wait(enum sha_mode mode, uint32_t *digest); + +#endif /* ! __EC_CHIP_G_DCRYPTO_INTERNAL_H */ |