Lines Matching +full:key +full:- +full:release

41  * HMAC is initialized with a key and an underlying hash function; it
42  * then fills a "key context". That context contains the processed
43  * key.
45  * With the key context, a HMAC context can be initialized to process
46  * the input bytes and obtain the MAC output. The key context is not
52  *   - hash output size does not exceed 64 bytes;
53  *   - hash internal state size does not exceed 64 bytes;
54  *   - internal block length is a power of 2 between 16 and 256 bytes.
58  * \brief HMAC key context.
60  * The HMAC key context is initialised with a hash function implementation
61  * and a secret key. Contents are opaque (callers should not access them
64  * allocation, so there is no release function.
74  * \brief HMAC key context initialisation.
76  * Initialise the key context with the provided key, using the hash function
77  * identified by `digest_vtable`. This supports arbitrary key lengths.
79  * \param kc              HMAC key context to initialise.
81  * \param key             pointer to the HMAC secret key.
82  * \param key_len         HMAC secret key length (in bytes).
85 	const br_hash_class *digest_vtable, const void *key, size_t key_len);
91  * hash function used for this HMAC key context.
93  * \param kc   HMAC key context.
99 	return kc->dig_vtable;  in br_hmac_key_get_digest()
107  * is caller-allocated and has no release function since it does not
121  * Initialise a HMAC context with a key context. The key context is
122  * unmodified. Relevant data from the key context is immediately copied;
123  * the key context can thus be independently reused, modified or released
133  * \param kc        HMAC key context (already initialised with the key).
144  * MUST NOT be called on a non-initialised HMAC computation context.
157 	return ctx->out_len;  in br_hmac_size()
172 	return hc->dig.vtable;  in br_hmac_get_digest()
203  * \brief Constant-time HMAC computation.
216  * The difference `max_len - min_len` MUST be less than 2<sup>30</sup>
220  * hash function uses MD padding (i.e. MD5, SHA-1, SHA-224, SHA-256,
221  * SHA-384 or SHA-512).