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1 /* | 1 /* |
2 * Copyright 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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21 // How will libsrtp select this module? | 21 // How will libsrtp select this module? |
22 // Libsrtp defines authentication function types identified by an unsigned | 22 // Libsrtp defines authentication function types identified by an unsigned |
23 // integer, e.g. SRTP_HMAC_SHA1 is 3. Using authentication ids, the | 23 // integer, e.g. SRTP_HMAC_SHA1 is 3. Using authentication ids, the |
24 // application can plug any desired authentication modules into libsrtp. | 24 // application can plug any desired authentication modules into libsrtp. |
25 // libsrtp also provides a mechanism to select different auth functions for | 25 // libsrtp also provides a mechanism to select different auth functions for |
26 // individual streams. This can be done by setting the right value in | 26 // individual streams. This can be done by setting the right value in |
27 // the auth_type of srtp_policy_t. The application must first register auth | 27 // the auth_type of srtp_policy_t. The application must first register auth |
28 // functions and the corresponding authentication id using | 28 // functions and the corresponding authentication id using |
29 // crypto_kernel_replace_auth_type function. | 29 // crypto_kernel_replace_auth_type function. |
30 | 30 |
31 #include "webrtc/base/basictypes.h" | 31 #include <stdint.h> |
| 32 |
32 #ifdef HAVE_SRTP | 33 #ifdef HAVE_SRTP |
33 #include "third_party/libsrtp/crypto/include/auth.h" | 34 #include "third_party/libsrtp/crypto/include/auth.h" |
34 #endif // HAVE_SRTP | 35 #endif // HAVE_SRTP |
35 | 36 |
36 #if defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH) | 37 #if defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH) |
37 | 38 |
38 #define EXTERNAL_HMAC_SHA1 SRTP_HMAC_SHA1 + 1 | 39 #define EXTERNAL_HMAC_SHA1 SRTP_HMAC_SHA1 + 1 |
39 #define HMAC_KEY_LENGTH 20 | 40 #define HMAC_KEY_LENGTH 20 |
40 | 41 |
41 // The HMAC context structure used to store authentication keys. | 42 // The HMAC context structure used to store authentication keys. |
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65 srtp_err_status_t external_hmac_compute(ExternalHmacContext* state, | 66 srtp_err_status_t external_hmac_compute(ExternalHmacContext* state, |
66 const void* message, | 67 const void* message, |
67 int msg_octets, | 68 int msg_octets, |
68 int tag_len, | 69 int tag_len, |
69 uint8_t* result); | 70 uint8_t* result); |
70 | 71 |
71 srtp_err_status_t external_crypto_init(); | 72 srtp_err_status_t external_crypto_init(); |
72 | 73 |
73 #endif // defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH) | 74 #endif // defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH) |
74 #endif // WEBRTC_PC_EXTERNALHMAC_H_ | 75 #endif // WEBRTC_PC_EXTERNALHMAC_H_ |
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