Index: srtp/crypto/rng/ctr_prng.c |
diff --git a/srtp/crypto/rng/ctr_prng.c b/srtp/crypto/rng/ctr_prng.c |
deleted file mode 100644 |
index e24b0aba93cf1c8e8a6cba73fee3b08a7586d23b..0000000000000000000000000000000000000000 |
--- a/srtp/crypto/rng/ctr_prng.c |
+++ /dev/null |
@@ -1,114 +0,0 @@ |
-/* |
- * ctr_prng.c |
- * |
- * counter mode based pseudorandom source |
- * |
- * David A. McGrew |
- * Cisco Systems, Inc. |
- */ |
-/* |
- * |
- * Copyright(c) 2001-2006 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. |
- * |
- */ |
- |
- |
-#ifdef HAVE_CONFIG_H |
- #include <config.h> |
-#endif |
- |
-#include "prng.h" |
- |
-/* single, global prng structure */ |
- |
-ctr_prng_t ctr_prng; |
- |
-err_status_t |
-ctr_prng_init(rand_source_func_t random_source) { |
- uint8_t tmp_key[32]; |
- err_status_t status; |
- |
- /* initialize output count to zero */ |
- ctr_prng.octet_count = 0; |
- |
- /* set random source */ |
- ctr_prng.rand = random_source; |
- |
- /* initialize secret key from random source */ |
- status = random_source(tmp_key, 32); |
- if (status) |
- return status; |
- |
- /* initialize aes ctr context with random key */ |
-#ifdef OPENSSL |
- status = aes_icm_openssl_context_init(&ctr_prng.state, tmp_key, 30); |
-#else |
- status = aes_icm_context_init(&ctr_prng.state, tmp_key, 30); |
-#endif |
- if (status) |
- return status; |
- |
- return err_status_ok; |
-} |
- |
-err_status_t |
-ctr_prng_get_octet_string(void *dest, uint32_t len) { |
- err_status_t status; |
- |
- /* |
- * if we need to re-initialize the prng, do so now |
- */ |
- if ((aes_icm_bytes_encrypted(&ctr_prng.state) + len) > 0xffff) { |
- status = ctr_prng_init(ctr_prng.rand); |
- if (status) |
- return status; |
- } |
- ctr_prng.octet_count += len; |
- |
- /* |
- * write prng output |
- */ |
- status = aes_icm_output(&ctr_prng.state, (uint8_t*)dest, len); |
- if (status) |
- return status; |
- |
- return err_status_ok; |
-} |
- |
-err_status_t |
-ctr_prng_deinit(void) { |
- |
- /* nothing */ |
- |
- return err_status_ok; |
-} |