1 /* 2 * GStreamer gstreamer-aeshelper 3 * 4 * Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com> 5 * Copyright, 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com> 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 23 * DEALINGS IN THE SOFTWARE. 24 * 25 * Alternatively, the contents of this file may be used under the 26 * GNU Lesser General Public License Version 2.1 (the "LGPL"), in 27 * which case the following provisions apply instead of the ones 28 * mentioned above: 29 * 30 * This library is free software; you can redistribute it and/or 31 * modify it under the terms of the GNU Library General Public 32 * License as published by the Free Software Foundation; either 33 * version 2 of the License, or (at your option) any later version. 34 * 35 * This library is distributed in the hope that it will be useful, 36 * but WITHOUT ANY WARRANTY; without even the implied warranty of 37 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 38 * Library General Public License for more details. 39 * 40 * You should have received a copy of the GNU Library General Public 41 * License along with this library; if not, write to the 42 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 43 * Boston, MA 02110-1335, USA. 44 */ 45 46 #ifndef __GST_AES_HELPER_H__ 47 #define __GST_AES_HELPER_H__ 48 49 #include <gst/gst.h> 50 #include <openssl/conf.h> 51 #include <openssl/evp.h> 52 #include <openssl/err.h> 53 54 /** 55 * GstAesCipher: 56 * @GST_AES_CIPHER_128_CBC: AES cipher with 128 bit key using CBC 57 * @GST_AES_CIPHER_256_CBC: AES cipher with 256 bit key using CBC 58 * 59 * Type of AES cipher to use 60 * 61 * Since: 1.20 62 */ 63 64 typedef enum { 65 GST_AES_CIPHER_128_CBC, 66 GST_AES_CIPHER_256_CBC 67 } GstAesCipher; 68 69 #define GST_AES_DEFAULT_SERIALIZE_IV FALSE 70 #define GST_AES_DEFAULT_KEY "" 71 #define GST_AES_DEFAULT_IV "" 72 #define GST_AES_DEFAULT_CIPHER_MODE GST_AES_CIPHER_128_CBC 73 #define GST_AES_PER_BUFFER_PADDING_DEFAULT TRUE 74 #define GST_AES_BLOCK_SIZE 16 75 /* only 128 or 256 bit key length is supported */ 76 #define GST_AES_MAX_KEY_SIZE 32 77 78 enum 79 { 80 PROP_0, 81 PROP_CIPHER, 82 PROP_SERIALIZE_IV, 83 PROP_KEY, 84 PROP_IV, 85 PROP_PER_BUFFER_PADDING 86 }; 87 88 G_BEGIN_DECLS 89 90 GType gst_aes_cipher_get_type (void); 91 #define GST_TYPE_AES_CIPHER (gst_aes_cipher_get_type ()) 92 const gchar* gst_aes_cipher_enum_to_string (GstAesCipher cipher); 93 94 gchar 95 gst_aes_nibble_to_hex (gchar in); 96 gchar * 97 gst_aes_bytearray2hexstring (const guchar * in, gchar * const out, 98 const gushort len); 99 guint 100 gst_aes_hexstring2bytearray (GstElement * filter, const gchar * in, 101 guchar * out); 102 103 G_END_DECLS 104 #endif /* __GST_AES_HELPER_H__ */ 105