checkasm: add tests for AES

Signed-off-by: James Almer <jamrial@gmail.com>

tests/checkasm/Makefile

@@ -70,6 +70,7 @@ SWSCALEOBJS                             += sw_gbrp.o sw_range_convert.o sw_rgb.o
 CHECKASMOBJS-$(CONFIG_SWSCALE)  += $(SWSCALEOBJS)
 
 # libavutil tests
+AVUTILOBJS                              += aes.o
 AVUTILOBJS                              += av_tx.o
 AVUTILOBJS                              += fixed_dsp.o
 AVUTILOBJS                              += float_dsp.o

tests/checkasm/aes.c

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015 Rodger Combs <rodger.combs@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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 "checkasm.h"
+#include "libavutil/aes.h"
+#include "libavutil/aes_internal.h"
+#include "libavutil/internal.h"
+
+#define MAX_COUNT 16
+
+void checkasm_check_aes(void)
+{
+    int i, j, d;
+    AVAES b;
+    uint8_t pt[MAX_COUNT * 16];
+    uint8_t temp[2][MAX_COUNT * 16];
+    uint8_t iv[2][16];
+
+    for (d = 0; d <= 1; d++) {
+        for (i = 128; i <= 256; i += 64) {
+            av_aes_init(&b, (const uint8_t*)"PI=3.1415926535897932384626433..", i, d);
+            if (check_func(b.crypt, "aes_%scrypt_%i", d ? "de" : "en", i)) {
+                declare_func(void, AVAES *a, uint8_t *dst, const uint8_t *src,
+                             int count, uint8_t *iv, int rounds);
+                int count = (rnd() & (MAX_COUNT - 1)) + 1;
+                for (j = 0; j < 16 * MAX_COUNT; j++)
+                    pt[j] = rnd();
+                for (j = 0; j < 16; j++)
+                    iv[0][j] = iv[1][j] = rnd();
+                call_ref(&b, temp[0], pt, count, iv[0], b.rounds);
+                call_new(&b, temp[1], pt, count, iv[1], b.rounds);
+                if (memcmp(temp[0], temp[1], sizeof(16 * count)))
+                    fail();
+                if (memcmp(iv[0], iv[1], sizeof(iv[0])))
+                    fail();
+                call_ref(&b, temp[0], pt, count, NULL, b.rounds);
+                call_new(&b, temp[1], pt, count, NULL, b.rounds);
+                if (memcmp(temp[0], temp[1], sizeof(16 * count)))
+                    fail();
+                if (memcmp(iv[0], iv[1], sizeof(iv[0])))
+                    fail();
+                bench_new(&b, temp[1], pt, MAX_COUNT, NULL, b.rounds);
+            }
+        }
+        report("%scrypt", d ? "de" : "en");
+    }
+}

tests/checkasm/checkasm.c

@@ -296,6 +296,7 @@ static const struct {
     { "sw_yuv2yuv", checkasm_check_sw_yuv2yuv },
 #endif
 #if CONFIG_AVUTIL
+        { "aes",       checkasm_check_aes },
         { "fixed_dsp", checkasm_check_fixed_dsp },
         { "float_dsp", checkasm_check_float_dsp },
         { "lls",       checkasm_check_lls },

tests/checkasm/checkasm.h

@@ -80,6 +80,7 @@ typedef sigjmp_buf checkasm_context;
 void checkasm_check_aacencdsp(void);
 void checkasm_check_aacpsdsp(void);
 void checkasm_check_ac3dsp(void);
+void checkasm_check_aes(void);
 void checkasm_check_afir(void);
 void checkasm_check_alacdsp(void);
 void checkasm_check_audiodsp(void);