diff options
Diffstat (limited to 'rsa.c')
| -rw-r--r-- | rsa.c | 71 |
1 files changed, 58 insertions, 13 deletions
@@ -416,17 +416,17 @@ void hal_rsa_key_clear(hal_rsa_key_t key) * calculate everything else from them. */ -hal_error_t hal_rsa_key_load(const hal_rsa_key_type_t type, - hal_rsa_key_t *key_, - void *keybuf, const size_t keybuf_len, - const uint8_t * const n, const size_t n_len, - const uint8_t * const e, const size_t e_len, - const uint8_t * const d, const size_t d_len, - const uint8_t * const p, const size_t p_len, - const uint8_t * const q, const size_t q_len, - const uint8_t * const u, const size_t u_len, - const uint8_t * const dP, const size_t dP_len, - const uint8_t * const dQ, const size_t dQ_len) +static hal_error_t load_key(const hal_rsa_key_type_t type, + hal_rsa_key_t *key_, + void *keybuf, const size_t keybuf_len, + const uint8_t * const n, const size_t n_len, + const uint8_t * const e, const size_t e_len, + const uint8_t * const d, const size_t d_len, + const uint8_t * const p, const size_t p_len, + const uint8_t * const q, const size_t q_len, + const uint8_t * const u, const size_t u_len, + const uint8_t * const dP, const size_t dP_len, + const uint8_t * const dQ, const size_t dQ_len) { if (key_ == NULL || keybuf == NULL || keybuf_len < sizeof(struct rsa_key)) return HAL_ERROR_BAD_ARGUMENTS; @@ -454,6 +454,52 @@ hal_error_t hal_rsa_key_load(const hal_rsa_key_type_t type, } /* + * Public API to load_key(). + */ + +hal_error_t hal_rsa_key_load_private(hal_rsa_key_t *key_, + void *keybuf, const size_t keybuf_len, + const uint8_t * const n, const size_t n_len, + const uint8_t * const e, const size_t e_len, + const uint8_t * const d, const size_t d_len, + const uint8_t * const p, const size_t p_len, + const uint8_t * const q, const size_t q_len, + const uint8_t * const u, const size_t u_len, + const uint8_t * const dP, const size_t dP_len, + const uint8_t * const dQ, const size_t dQ_len) +{ + return load_key(HAL_RSA_PRIVATE, key_, keybuf, keybuf_len, + n, n_len, e, e_len, + d, d_len, p, p_len, q, q_len, u, u_len, dP, dP_len, dQ, dQ_len); +} + +hal_error_t hal_rsa_key_load_public(hal_rsa_key_t *key_, + void *keybuf, const size_t keybuf_len, + const uint8_t * const n, const size_t n_len, + const uint8_t * const e, const size_t e_len) +{ + return load_key(HAL_RSA_PUBLIC, key_, keybuf, keybuf_len, + n, n_len, e, e_len, + NULL, 0, NULL, 0, NULL, 0, NULL, 0, NULL, 0, NULL, 0); +} + +/* + * Extract the key type. + */ + +hal_error_t hal_rsa_key_get_type(hal_rsa_key_t key_, + hal_rsa_key_type_t *key_type) +{ + struct rsa_key *key = key_.key; + + if (key == NULL || key_type == NULL) + return HAL_ERROR_BAD_ARGUMENTS; + + *key_type = key->type; + return HAL_OK; +} + +/* * Extract public key components. */ @@ -543,8 +589,7 @@ hal_error_t hal_rsa_key_gen(hal_rsa_key_t *key_, key->type = HAL_RSA_PRIVATE; fp_read_unsigned_bin(&key->e, (uint8_t *) public_exponent, public_exponent_len); - if (key_length != bitsToBytes(1024) && key_length != bitsToBytes(2048) && - key_length != bitsToBytes(4096) && key_length != bitsToBytes(8192)) + if (key_length < bitsToBytes(1024) || key_length > bitsToBytes(8192)) return HAL_ERROR_UNSUPPORTED_KEY; if (fp_cmp_d(&key->e, 0x010001) != FP_EQ) |