summaryrefslogtreecommitdiff
path: root/libavformat/rtmpcrypt.h
diff options
context:
space:
mode:
authorSamuel Pitoiset <samuel.pitoiset@gmail.com>2012-07-19 14:13:58 +0200
committerMartin Storsjö <martin@martin.st>2012-07-23 16:32:07 +0300
commitacd554c103459ae7a5d89caa611e91bbc9bf695f (patch)
tree7e591295c7f7057bc6e8c3da4ef7d825611c868b /libavformat/rtmpcrypt.h
parent0e31088b6c57e7d495deda0abaf5de5adb2c18fa (diff)
RTMPE protocol support
This adds two protocols, but one of them is an internal implementation detail just used as an abstraction layer/generalization in the code. The RTMPE protocol implementation uses ffrtmpcrypt:// as an alternative to the tcp:// protocol. This allows moving most of the lower level logic out from the higher level generic rtmp code. Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavformat/rtmpcrypt.h')
-rw-r--r--libavformat/rtmpcrypt.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/libavformat/rtmpcrypt.h b/libavformat/rtmpcrypt.h
new file mode 100644
index 0000000000..27994333df
--- /dev/null
+++ b/libavformat/rtmpcrypt.h
@@ -0,0 +1,69 @@
+/*
+ * RTMPE encryption utilities
+ * Copyright (c) 2012 Samuel Pitoiset
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_RTMPCRYPT_H
+#define AVFORMAT_RTMPCRYPT_H
+
+#include <stdint.h>
+
+#include "url.h"
+
+/**
+ * Initialize the Diffie-Hellmann context and generate the public key.
+ *
+ * @param h an URLContext
+ * @param buf handshake data (1536 bytes)
+ * @return zero on success, negative value otherwise
+ */
+int ff_rtmpe_gen_pub_key(URLContext *h, uint8_t *buf);
+
+/**
+ * Compute the shared secret key and initialize the RC4 encryption.
+ *
+ * @param h an URLContext
+ * @param serverdata server data (1536 bytes)
+ * @param clientdata client data (1536 bytes)
+ * @param type the position of the server digest
+ * @return zero on success, negative value otherwise
+ */
+int ff_rtmpe_compute_secret_key(URLContext *h, const uint8_t *serverdata,
+ const uint8_t *clientdata, int type);
+
+/**
+ * Encrypt the signature.
+ *
+ * @param h an URLContext
+ * @param signature the signature to encrypt
+ * @param digest the digest used for finding the encryption key
+ * @param type type of encryption (8 for XTEA, 9 for Blowfish)
+ */
+void ff_rtmpe_encrypt_sig(URLContext *h, uint8_t *signature,
+ const uint8_t *digest, int type);
+
+/**
+ * Update the keystream and set RC4 keys for encryption.
+ *
+ * @param h an URLContext
+ * @return zero on success, negative value otherwise
+ */
+int ff_rtmpe_update_keystream(URLContext *h);
+
+#endif /* AVFORMAT_RTMPCRYPT_H */