avutil/tests: added selftest for aes_ctr.c

Signed-off-by: Thomas Turner <thomastdt@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavutil/Makefile

@@ -181,6 +181,7 @@ SKIPHEADERS-$(CONFIG_OPENCL)           += opencl.h
 
 TESTPROGS = adler32                                                     \
             aes                                                         \
+            aes_ctr                                                     \
             atomic                                                      \
             audio_fifo                                                  \
             avstring                                                    \

libavutil/tests/aes_ctr.c

@@ -0,0 +1,65 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/log.h"
+#include "libavutil/mem.h"
+#include "libavutil/aes_ctr.h"
+
+static const DECLARE_ALIGNED(8, uint8_t, plain)[] = {
+    0x6d, 0x6f, 0x73, 0x74, 0x20, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d
+};
+static DECLARE_ALIGNED(8, uint8_t, tmp)[11];
+
+int main (void)
+{
+    int ret = 1;
+    struct AVAESCTR *ae, *ad;
+    const uint8_t *iv;
+
+    ae = av_aes_ctr_alloc();
+    ad = av_aes_ctr_alloc();
+
+    if (!ae || !ad)
+        goto ERROR;
+
+    if (av_aes_ctr_init(ae, (const uint8_t*)"0123456789abcdef") < 0)
+        goto ERROR;
+
+    if (av_aes_ctr_init(ad, (const uint8_t*)"0123456789abcdef") < 0)
+        goto ERROR;
+
+    av_aes_ctr_set_random_iv(ae);
+    iv =   av_aes_ctr_get_iv(ae);
+    av_aes_ctr_set_iv(ad, iv);
+
+    av_aes_ctr_crypt(ae, tmp, plain, sizeof(tmp));
+    av_aes_ctr_crypt(ad, tmp, tmp,   sizeof(tmp));
+
+    if (memcmp(tmp, plain, sizeof(tmp)) != 0){
+        av_log(NULL, AV_LOG_ERROR, "test failed\n");
+        goto ERROR;
+    }
+
+    av_log(NULL, AV_LOG_INFO, "test passed\n");
+    ret = 0;
+
+ERROR:
+    av_aes_ctr_free(ae);
+    av_aes_ctr_free(ad);
+    return ret;
+}

tests/fate/libavutil.mak

@@ -8,6 +8,11 @@ fate-aes: libavutil/tests/aes$(EXESUF)
 fate-aes: CMD = run libavutil/tests/aes
 fate-aes: REF = /dev/null
 
+FATE_LIBAVUTIL += fate-aes_ctr
+fate-aes_ctr: libavutil/tests/aes_ctr$(EXESUF)
+fate-aes_ctr: CMD = run libavutil/tests/aes_ctr
+fate-aes_ctr: REF = /dev/null
+
 FATE_LIBAVUTIL += fate-camellia
 fate-camellia: libavutil/tests/camellia$(EXESUF)
 fate-camellia: CMD = run libavutil/tests/camellia