diff options
Diffstat (limited to 'firmware/2lib/include/2api.h')
| -rw-r--r-- | firmware/2lib/include/2api.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/firmware/2lib/include/2api.h b/firmware/2lib/include/2api.h index 1ce6a09f..0c5792d8 100644 --- a/firmware/2lib/include/2api.h +++ b/firmware/2lib/include/2api.h @@ -21,6 +21,7 @@ #define VBOOT_2_API_H_ #include <stdint.h> +#include "2crypto.h" #include "2fw_hash_tags.h" #include "2guid.h" #include "2recovery_reasons.h" @@ -364,4 +365,33 @@ int vb2ex_read_resource(struct vb2_context *ctx, uint32_t size); void vb2ex_printf(const char *func, const char *fmt, ...); + +/** + * Initialize the hardware crypto engine to calculate a block-style digest. + * + * @param hash_alg Hash algorithm to use + * @param data_size Expected total size of data to hash + * @return VB2_SUCCESS, or non-zero error code (HWCRYPTO_UNSUPPORTED not fatal). + */ +int vb2ex_hwcrypto_digest_init(enum vb2_hash_algorithm hash_alg, + uint32_t data_size); + +/** + * Extend the hash in the hardware crypto engine with another block of data. + * + * @param buf Next data block to hash + * @param size Length of data block in bytes + * @return VB2_SUCCESS, or non-zero error code. + */ +int vb2ex_hwcrypto_digest_extend(const uint8_t *buf, uint32_t size); + +/** + * Finalize the digest in the hardware crypto engine and extract the result. + * + * @param digest Destination buffer for resulting digest + * @param digest_size Length of digest buffer in bytes + * @return VB2_SUCCESS, or non-zero error code. + */ +int vb2ex_hwcrypto_digest_finalize(uint8_t *digest, uint32_t digest_size); + #endif /* VBOOT_2_API_H_ */ |