Index: srtp/crypto/include/cipher.h |
diff --git a/srtp/crypto/include/cipher.h b/srtp/crypto/include/cipher.h |
deleted file mode 100644 |
index d0d6b57f27b6aba9ed809ff5abf276ce162fea8d..0000000000000000000000000000000000000000 |
--- a/srtp/crypto/include/cipher.h |
+++ /dev/null |
@@ -1,254 +0,0 @@ |
-/* |
- * cipher.h |
- * |
- * common interface to ciphers |
- * |
- * David A. McGrew |
- * Cisco Systems, Inc. |
- */ |
-/* |
- * |
- * Copyright (c) 2001-2006,2013 Cisco Systems, Inc. |
- * All rights reserved. |
- * |
- * Redistribution and use in source and binary forms, with or without |
- * modification, are permitted provided that the following conditions |
- * are met: |
- * |
- * Redistributions of source code must retain the above copyright |
- * notice, this list of conditions and the following disclaimer. |
- * |
- * Redistributions in binary form must reproduce the above |
- * copyright notice, this list of conditions and the following |
- * disclaimer in the documentation and/or other materials provided |
- * with the distribution. |
- * |
- * Neither the name of the Cisco Systems, Inc. nor the names of its |
- * contributors may be used to endorse or promote products derived |
- * from this software without specific prior written permission. |
- * |
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
- * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
- * OF THE POSSIBILITY OF SUCH DAMAGE. |
- * |
- */ |
- |
- |
-#ifndef CIPHER_H |
-#define CIPHER_H |
- |
-#include "datatypes.h" |
-#include "rdbx.h" /* for xtd_seq_num_t */ |
-#include "err.h" /* for error codes */ |
-#include "crypto.h" /* for cipher_type_id_t */ |
-#include "crypto_types.h" /* for values of cipher_type_id_t */ |
- |
- |
-/** |
- * @brief cipher_direction_t defines a particular cipher operation. |
- * |
- * A cipher_direction_t is an enum that describes a particular cipher |
- * operation, i.e. encryption or decryption. For some ciphers, this |
- * distinction does not matter, but for others, it is essential. |
- */ |
- |
-typedef enum { |
- direction_encrypt, /**< encryption (convert plaintext to ciphertext) */ |
- direction_decrypt, /**< decryption (convert ciphertext to plaintext) */ |
- direction_any /**< encryption or decryption */ |
-} cipher_direction_t; |
- |
-/* |
- * the cipher_pointer and cipher_type_pointer definitions are needed |
- * as cipher_t and cipher_type_t are not yet defined |
- */ |
- |
-typedef struct cipher_type_t *cipher_type_pointer_t; |
-typedef struct cipher_t *cipher_pointer_t; |
- |
-/* |
- * a cipher_alloc_func_t allocates (but does not initialize) a cipher_t |
- */ |
- |
-typedef err_status_t (*cipher_alloc_func_t) |
- (cipher_pointer_t *cp, int key_len, int tag_len); |
- |
-/* |
- * a cipher_init_func_t [re-]initializes a cipher_t with a given key |
- */ |
- |
-typedef err_status_t (*cipher_init_func_t) |
-(void *state, const uint8_t *key, int key_len); |
- |
-/* a cipher_dealloc_func_t de-allocates a cipher_t */ |
- |
-typedef err_status_t (*cipher_dealloc_func_t)(cipher_pointer_t cp); |
- |
-/* a cipher_set_segment_func_t sets the segment index of a cipher_t */ |
- |
-typedef err_status_t (*cipher_set_segment_func_t) |
- (void *state, xtd_seq_num_t idx); |
- |
-/* |
- * a cipher_set_aad_func_t processes the AAD data for AEAD ciphers |
- */ |
-typedef err_status_t (*cipher_set_aad_func_t) |
- (void *state, uint8_t *aad, unsigned int aad_len); |
- |
- |
-/* a cipher_encrypt_func_t encrypts data in-place */ |
- |
-typedef err_status_t (*cipher_encrypt_func_t) |
- (void *state, uint8_t *buffer, unsigned int *octets_to_encrypt); |
- |
-/* a cipher_decrypt_func_t decrypts data in-place */ |
- |
-typedef err_status_t (*cipher_decrypt_func_t) |
- (void *state, uint8_t *buffer, unsigned int *octets_to_decrypt); |
- |
-/* |
- * a cipher_set_iv_func_t function sets the current initialization vector |
- */ |
- |
-typedef err_status_t (*cipher_set_iv_func_t) |
- (cipher_pointer_t cp, void *iv, cipher_direction_t direction); |
- |
-/* |
- * a cipher_get_tag_funct_t function is used to get the authentication |
- * tag that was calculated by an AEAD cipher. |
- */ |
-typedef err_status_t (*cipher_get_tag_func_t) |
- (void *state, void *tag, int *len); |
- |
- |
-/* |
- * cipher_test_case_t is a (list of) key, salt, xtd_seq_num_t, |
- * plaintext, and ciphertext values that are known to be correct for a |
- * particular cipher. this data can be used to test an implementation |
- * in an on-the-fly self test of the correcness of the implementation. |
- * (see the cipher_type_self_test() function below) |
- */ |
- |
-typedef struct cipher_test_case_t { |
- int key_length_octets; /* octets in key */ |
- uint8_t *key; /* key */ |
- uint8_t *idx; /* packet index */ |
- int plaintext_length_octets; /* octets in plaintext */ |
- uint8_t *plaintext; /* plaintext */ |
- int ciphertext_length_octets; /* octets in plaintext */ |
- uint8_t *ciphertext; /* ciphertext */ |
- int aad_length_octets; /* octets in AAD */ |
- uint8_t *aad; /* AAD */ |
- int tag_length_octets; /* Length of AEAD tag */ |
- struct cipher_test_case_t *next_test_case; /* pointer to next testcase */ |
-} cipher_test_case_t; |
- |
-/* cipher_type_t defines the 'metadata' for a particular cipher type */ |
- |
-typedef struct cipher_type_t { |
- cipher_alloc_func_t alloc; |
- cipher_dealloc_func_t dealloc; |
- cipher_init_func_t init; |
- cipher_set_aad_func_t set_aad; |
- cipher_encrypt_func_t encrypt; |
- cipher_encrypt_func_t decrypt; |
- cipher_set_iv_func_t set_iv; |
- cipher_get_tag_func_t get_tag; |
- char *description; |
- int ref_count; |
- cipher_test_case_t *test_data; |
- debug_module_t *debug; |
- cipher_type_id_t id; |
-} cipher_type_t; |
- |
-/* |
- * cipher_t defines an instantiation of a particular cipher, with fixed |
- * key length, key and salt values |
- */ |
- |
-typedef struct cipher_t { |
- cipher_type_t *type; |
- void *state; |
- int key_len; |
- int algorithm; |
-} cipher_t; |
- |
-/* some syntactic sugar on these function types */ |
- |
-#define cipher_type_alloc(ct, c, klen, tlen) ((ct)->alloc((c), (klen), (tlen))) |
- |
-#define cipher_dealloc(c) (((c)->type)->dealloc(c)) |
- |
-#define cipher_init(c, k) (((c)->type)->init(((c)->state), (k), ((c)->key_len))) |
- |
-#define cipher_encrypt(c, buf, len) \ |
- (((c)->type)->encrypt(((c)->state), (buf), (len))) |
- |
-#define cipher_get_tag(c, buf, len) \ |
- (((c)->type)->get_tag(((c)->state), (buf), (len))) |
- |
-#define cipher_decrypt(c, buf, len) \ |
- (((c)->type)->decrypt(((c)->state), (buf), (len))) |
- |
-#define cipher_set_iv(c, n, dir) \ |
- ((c) ? (((c)->type)->set_iv(((cipher_pointer_t)(c)->state), (n), (dir))) : \ |
- err_status_no_such_op) |
-#define cipher_set_aad(c, a, l) \ |
- (((c) && (((c)->type)->set_aad)) ? \ |
- (((c)->type)->set_aad(((c)->state), (a), (l))) : \ |
- err_status_no_such_op) |
- |
-err_status_t |
-cipher_output(cipher_t *c, uint8_t *buffer, int num_octets_to_output); |
- |
- |
-/* some bookkeeping functions */ |
- |
-int |
-cipher_get_key_length(const cipher_t *c); |
- |
- |
-/* |
- * cipher_type_self_test() tests a cipher against test cases provided in |
- * an array of values of key/xtd_seq_num_t/plaintext/ciphertext |
- * that is known to be good |
- */ |
- |
-err_status_t |
-cipher_type_self_test(const cipher_type_t *ct); |
- |
- |
-/* |
- * cipher_type_test() tests a cipher against external test cases provided in |
- * an array of values of key/xtd_seq_num_t/plaintext/ciphertext |
- * that is known to be good |
- */ |
- |
-err_status_t |
-cipher_type_test(const cipher_type_t *ct, const cipher_test_case_t *test_data); |
- |
- |
-/* |
- * cipher_bits_per_second(c, l, t) computes (and estimate of) the |
- * number of bits that a cipher implementation can encrypt in a second |
- * |
- * c is a cipher (which MUST be allocated and initialized already), l |
- * is the length in octets of the test data to be encrypted, and t is |
- * the number of trials |
- * |
- * if an error is encountered, then the value 0 is returned |
- */ |
- |
-uint64_t |
-cipher_bits_per_second(cipher_t *c, int octets_in_buffer, int num_trials); |
- |
-#endif /* CIPHER_H */ |