diff options
Diffstat (limited to 'src/libstrongswan/plugins/hmac')
| -rw-r--r-- | src/libstrongswan/plugins/hmac/hmac.c | 50 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/hmac/hmac.h | 30 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/hmac/hmac_plugin.c | 32 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/hmac/hmac_prf.c | 14 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/hmac/hmac_prf.h | 6 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/hmac/hmac_signer.c | 22 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/hmac/hmac_signer.h | 2 |
7 files changed, 78 insertions, 78 deletions
diff --git a/src/libstrongswan/plugins/hmac/hmac.c b/src/libstrongswan/plugins/hmac/hmac.c index 6dfa02233..c1ab48899 100644 --- a/src/libstrongswan/plugins/hmac/hmac.c +++ b/src/libstrongswan/plugins/hmac/hmac.c @@ -23,7 +23,7 @@ typedef struct private_hmac_t private_hmac_t; /** * Private data of a hmac_t object. - * + * * The variable names are the same as in the RFC. */ struct private_hmac_t { @@ -31,22 +31,22 @@ struct private_hmac_t { * Public hmac_t interface. */ hmac_t hmac; - + /** * Block size, as in RFC. */ u_int8_t b; - + /** * Hash function. */ hasher_t *h; - + /** * Previously xor'ed key using opad. */ chunk_t opaded_key; - + /** * Previously xor'ed key using ipad. */ @@ -58,16 +58,16 @@ struct private_hmac_t { */ static void get_mac(private_hmac_t *this, chunk_t data, u_int8_t *out) { - /* H(K XOR opad, H(K XOR ipad, text)) - * + /* H(K XOR opad, H(K XOR ipad, text)) + * * if out is NULL, we append text to the inner hash. * else, we complete the inner and do the outer. - * + * */ - + u_int8_t buffer[this->h->get_hash_size(this->h)]; chunk_t inner; - + if (out == NULL) { /* append data to inner */ @@ -78,14 +78,14 @@ static void get_mac(private_hmac_t *this, chunk_t data, u_int8_t *out) /* append and do outer hash */ inner.ptr = buffer; inner.len = this->h->get_hash_size(this->h); - + /* complete inner */ this->h->get_hash(this->h, data, buffer); - + /* do outer */ this->h->get_hash(this->h, this->opaded_key, NULL); this->h->get_hash(this->h, inner, out); - + /* reinit for next call */ this->h->get_hash(this->h, this->ipaded_key, NULL); } @@ -109,7 +109,7 @@ static void allocate_mac(private_hmac_t *this, chunk_t data, chunk_t *out) this->hmac.get_mac(&(this->hmac), data, out->ptr); } } - + /** * Implementation of hmac_t.get_block_size. */ @@ -125,27 +125,27 @@ static void set_key(private_hmac_t *this, chunk_t key) { int i; u_int8_t buffer[this->b]; - + memset(buffer, 0, this->b); - + if (key.len > this->b) - { + { /* if key is too long, it will be hashed */ this->h->get_hash(this->h, key, buffer); } else - { + { /* if not, just copy it in our pre-padded k */ - memcpy(buffer, key.ptr, key.len); + memcpy(buffer, key.ptr, key.len); } - + /* apply ipad and opad to key */ for (i = 0; i < this->b; i++) { this->ipaded_key.ptr[i] = buffer[i] ^ 0x36; this->opaded_key.ptr[i] = buffer[i] ^ 0x5C; } - + /* begin hashing of inner pad */ this->h->reset(this->h); this->h->get_hash(this->h, this->ipaded_key, NULL); @@ -175,7 +175,7 @@ hmac_t *hmac_create(hash_algorithm_t hash_algorithm) this->hmac.get_block_size = (size_t (*)(hmac_t *))get_block_size; this->hmac.set_key = (void (*)(hmac_t *,chunk_t))set_key; this->hmac.destroy = (void (*)(hmac_t *))destroy; - + /* set b, according to hasher */ switch (hash_algorithm) { @@ -190,15 +190,15 @@ hmac_t *hmac_create(hash_algorithm_t hash_algorithm) break; default: free(this); - return NULL; + return NULL; } - + /* build the hasher */ this->h = lib->crypto->create_hasher(lib->crypto, hash_algorithm); if (this->h == NULL) { free(this); - return NULL; + return NULL; } /* build ipad and opad */ diff --git a/src/libstrongswan/plugins/hmac/hmac.h b/src/libstrongswan/plugins/hmac/hmac.h index a204d3b17..be1bce66d 100644 --- a/src/libstrongswan/plugins/hmac/hmac.h +++ b/src/libstrongswan/plugins/hmac/hmac.h @@ -36,46 +36,46 @@ typedef struct hmac_t hmac_t; struct hmac_t { /** * Generate message authentication code. - * + * * If buffer is NULL, no result is given back. A next call will - * append the data to already supplied data. If buffer is not NULL, + * append the data to already supplied data. If buffer is not NULL, * the mac of all apended data is calculated, returned and the * state of the hmac_t is reseted. - * + * * @param data chunk of data to authenticate * @param buffer pointer where the generated bytes will be written */ void (*get_mac) (hmac_t *this, chunk_t data, u_int8_t *buffer); - + /** * Generates message authentication code and allocate space for them. - * + * * If chunk is NULL, no result is given back. A next call will - * append the data to already supplied. If chunk is not NULL, + * append the data to already supplied. If chunk is not NULL, * the mac of all apended data is calculated, returned and the * state of the hmac_t reset; - * + * * @param data chunk of data to authenticate * @param chunk chunk which will hold generated bytes */ void (*allocate_mac) (hmac_t *this, chunk_t data, chunk_t *chunk); - + /** * Get the block size of this hmac_t object. - * + * * @return block size in bytes */ - size_t (*get_block_size) (hmac_t *this); - + size_t (*get_block_size) (hmac_t *this); + /** * Set the key for this hmac_t object. - * + * * Any key length is accepted. - * + * * @param key key to set */ void (*set_key) (hmac_t *this, chunk_t key); - + /** * Destroys a hmac_t object. */ @@ -84,7 +84,7 @@ struct hmac_t { /** * Creates a new hmac_t object. - * + * * @param hash_algorithm hash algorithm to use * @return hmac_t object, NULL if not supported */ diff --git a/src/libstrongswan/plugins/hmac/hmac_plugin.c b/src/libstrongswan/plugins/hmac/hmac_plugin.c index aa1e994b0..94332ee36 100644 --- a/src/libstrongswan/plugins/hmac/hmac_plugin.c +++ b/src/libstrongswan/plugins/hmac/hmac_plugin.c @@ -50,35 +50,35 @@ static void destroy(private_hmac_plugin_t *this) plugin_t *plugin_create() { private_hmac_plugin_t *this = malloc_thing(private_hmac_plugin_t); - + this->public.plugin.destroy = (void(*)(plugin_t*))destroy; - - lib->crypto->add_prf(lib->crypto, PRF_HMAC_SHA2_256, + + lib->crypto->add_prf(lib->crypto, PRF_HMAC_SHA2_256, (prf_constructor_t)hmac_prf_create); - lib->crypto->add_prf(lib->crypto, PRF_HMAC_SHA1, + lib->crypto->add_prf(lib->crypto, PRF_HMAC_SHA1, (prf_constructor_t)hmac_prf_create); - lib->crypto->add_prf(lib->crypto, PRF_HMAC_MD5, + lib->crypto->add_prf(lib->crypto, PRF_HMAC_MD5, (prf_constructor_t)hmac_prf_create); - lib->crypto->add_prf(lib->crypto, PRF_HMAC_SHA2_384, + lib->crypto->add_prf(lib->crypto, PRF_HMAC_SHA2_384, (prf_constructor_t)hmac_prf_create); - lib->crypto->add_prf(lib->crypto, PRF_HMAC_SHA2_512, + lib->crypto->add_prf(lib->crypto, PRF_HMAC_SHA2_512, (prf_constructor_t)hmac_prf_create); - - lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA1_96, + + lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA1_96, (signer_constructor_t)hmac_signer_create); - lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA1_128, + lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA1_128, (signer_constructor_t)hmac_signer_create); - lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA1_160, + lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA1_160, (signer_constructor_t)hmac_signer_create); - lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA2_256_128, + lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA2_256_128, (signer_constructor_t)hmac_signer_create); - lib->crypto->add_signer(lib->crypto, AUTH_HMAC_MD5_96, + lib->crypto->add_signer(lib->crypto, AUTH_HMAC_MD5_96, (signer_constructor_t)hmac_signer_create); - lib->crypto->add_signer(lib->crypto, AUTH_HMAC_MD5_128, + lib->crypto->add_signer(lib->crypto, AUTH_HMAC_MD5_128, (signer_constructor_t)hmac_signer_create); - lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA2_384_192, + lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA2_384_192, (signer_constructor_t)hmac_signer_create); - lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA2_512_256, + lib->crypto->add_signer(lib->crypto, AUTH_HMAC_SHA2_512_256, (signer_constructor_t)hmac_signer_create); return &this->public.plugin; diff --git a/src/libstrongswan/plugins/hmac/hmac_prf.c b/src/libstrongswan/plugins/hmac/hmac_prf.c index 454d40be3..cca6e9570 100644 --- a/src/libstrongswan/plugins/hmac/hmac_prf.c +++ b/src/libstrongswan/plugins/hmac/hmac_prf.c @@ -28,8 +28,8 @@ struct private_hmac_prf_t { /** * Public hmac_prf_t interface. */ - hmac_prf_t public; - + hmac_prf_t public; + /** * Hmac to use for generation. */ @@ -93,7 +93,7 @@ hmac_prf_t *hmac_prf_create(pseudo_random_function_t algo) { private_hmac_prf_t *this; hash_algorithm_t hash; - + switch (algo) { case PRF_HMAC_SHA1: @@ -114,22 +114,22 @@ hmac_prf_t *hmac_prf_create(pseudo_random_function_t algo) default: return NULL; } - + this = malloc_thing(private_hmac_prf_t); this->hmac = hmac_create(hash); if (this->hmac == NULL) { free(this); - return NULL; + return NULL; } - + this->public.prf_interface.get_bytes = (void (*) (prf_t *,chunk_t,u_int8_t*))get_bytes; this->public.prf_interface.allocate_bytes = (void (*) (prf_t*,chunk_t,chunk_t*))allocate_bytes; this->public.prf_interface.get_block_size = (size_t (*) (prf_t*))get_block_size; this->public.prf_interface.get_key_size = (size_t (*) (prf_t*))get_key_size; this->public.prf_interface.set_key = (void (*) (prf_t *,chunk_t))set_key; this->public.prf_interface.destroy = (void (*) (prf_t *))destroy; - + return &(this->public); } diff --git a/src/libstrongswan/plugins/hmac/hmac_prf.h b/src/libstrongswan/plugins/hmac/hmac_prf.h index aa75272e1..975b456f5 100644 --- a/src/libstrongswan/plugins/hmac/hmac_prf.h +++ b/src/libstrongswan/plugins/hmac/hmac_prf.h @@ -28,12 +28,12 @@ typedef struct hmac_prf_t hmac_prf_t; /** * Implementation of prf_t interface using the HMAC algorithm. - * + * * This simply wraps a hmac_t in a prf_t. More a question of * interface matching. */ struct hmac_prf_t { - + /** * Generic prf_t interface for this hmac_prf_t class. */ @@ -42,7 +42,7 @@ struct hmac_prf_t { /** * Creates a new hmac_prf_t object. - * + * * @param algo algorithm to implement * @return hmac_prf_t object, NULL if hash not supported */ diff --git a/src/libstrongswan/plugins/hmac/hmac_signer.c b/src/libstrongswan/plugins/hmac/hmac_signer.c index b44bc2109..f82a8f3a1 100644 --- a/src/libstrongswan/plugins/hmac/hmac_signer.c +++ b/src/libstrongswan/plugins/hmac/hmac_signer.c @@ -29,12 +29,12 @@ struct private_hmac_signer_t { * Public interface of hmac_signer_t. */ hmac_signer_t public; - + /** * Assigned hmac function. */ hmac_t *hmac; - + /** * Block size (truncation of HMAC Hash) */ @@ -54,7 +54,7 @@ static void get_signature(private_hmac_signer_t *this, else { u_int8_t mac[this->hmac->get_block_size(this->hmac)]; - + this->hmac->get_mac(this->hmac, data, mac); memcpy(buffer, mac, this->block_size); } @@ -73,12 +73,12 @@ static void allocate_signature (private_hmac_signer_t *this, else { u_int8_t mac[this->hmac->get_block_size(this->hmac)]; - + this->hmac->get_mac(this->hmac, data, mac); chunk->ptr = malloc(this->block_size); chunk->len = this->block_size; - + memcpy(chunk->ptr, mac, this->block_size); } } @@ -90,9 +90,9 @@ static bool verify_signature(private_hmac_signer_t *this, chunk_t data, chunk_t signature) { u_int8_t mac[this->hmac->get_block_size(this->hmac)]; - + this->hmac->get_mac(this->hmac, data, mac); - + if (signature.len != this->block_size) { return FALSE; @@ -142,7 +142,7 @@ hmac_signer_t *hmac_signer_create(integrity_algorithm_t algo) private_hmac_signer_t *this; size_t trunc; hash_algorithm_t hash; - + switch (algo) { case AUTH_HMAC_SHA1_96: @@ -180,7 +180,7 @@ hmac_signer_t *hmac_signer_create(integrity_algorithm_t algo) default: return NULL; } - + this = malloc_thing(private_hmac_signer_t); this->hmac = hmac_create(hash); if (this->hmac == NULL) @@ -190,7 +190,7 @@ hmac_signer_t *hmac_signer_create(integrity_algorithm_t algo) } /* prevent invalid truncation */ this->block_size = min(trunc, this->hmac->get_block_size(this->hmac)); - + /* interface functions */ this->public.signer_interface.get_signature = (void (*) (signer_t*, chunk_t, u_int8_t*))get_signature; this->public.signer_interface.allocate_signature = (void (*) (signer_t*, chunk_t, chunk_t*))allocate_signature; @@ -199,7 +199,7 @@ hmac_signer_t *hmac_signer_create(integrity_algorithm_t algo) this->public.signer_interface.get_block_size = (size_t (*) (signer_t*))get_block_size; this->public.signer_interface.set_key = (void (*) (signer_t*,chunk_t))set_key; this->public.signer_interface.destroy = (void (*) (signer_t*))destroy; - + return &(this->public); } diff --git a/src/libstrongswan/plugins/hmac/hmac_signer.h b/src/libstrongswan/plugins/hmac/hmac_signer.h index 197e28fa7..0de93440c 100644 --- a/src/libstrongswan/plugins/hmac/hmac_signer.h +++ b/src/libstrongswan/plugins/hmac/hmac_signer.h @@ -32,7 +32,7 @@ typedef struct hmac_signer_t hmac_signer_t; * HMAC uses a standard hash function implemented in a hasher_t to build a MAC. */ struct hmac_signer_t { - + /** * generic signer_t interface for this signer */ |