[FFmpeg-cvslog] lavf: Add a fate test for the SRTP functions
Martin Storsjö
git at videolan.org
Wed Jan 16 12:12:30 CET 2013
ffmpeg | branch: master | Martin Storsjö <martin at martin.st> | Tue Jan 15 15:07:44 2013 +0200| [c2603aa25b75318df94d400eb60557123fa42a75] | committer: Martin Storsjö
lavf: Add a fate test for the SRTP functions
Signed-off-by: Martin Storsjö <martin at martin.st>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c2603aa25b75318df94d400eb60557123fa42a75
---
libavformat/Makefile | 1 +
libavformat/srtp.c | 129 ++++++++++++++++++++++++++++++++++++++++++++
tests/fate/libavformat.mak | 4 ++
tests/ref/fate/srtp | 8 +++
4 files changed, 142 insertions(+)
diff --git a/libavformat/Makefile b/libavformat/Makefile
index 1f008a9..111380a 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -379,6 +379,7 @@ EXAMPLES = metadata \
output \
TESTPROGS = seek \
+ srtp \
url \
TOOLS = aviocat \
diff --git a/libavformat/srtp.c b/libavformat/srtp.c
index 6c589b0..de48c14 100644
--- a/libavformat/srtp.c
+++ b/libavformat/srtp.c
@@ -291,3 +291,132 @@ int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len,
len += s->hmac_size;
return buf + len - out;
}
+
+#ifdef TEST
+#include <stdio.h>
+
+static const char *aes128_80_key = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn";
+
+static const uint8_t rtp_aes128_80[] = {
+ // RTP header
+ 0x80, 0xe0, 0x12, 0x34,
+ 0x12, 0x34, 0x56, 0x78,
+ 0x12, 0x34, 0x56, 0x78,
+ // encrypted payload
+ 0x62, 0x69, 0x76, 0xca, 0xc5,
+ // HMAC
+ 0xa1, 0xac, 0x1b, 0xb4, 0xa0, 0x1c, 0xd5, 0x49, 0x28, 0x99,
+};
+
+static const uint8_t rtcp_aes128_80[] = {
+ // RTCP header
+ 0x81, 0xc9, 0x00, 0x07,
+ 0x12, 0x34, 0x56, 0x78,
+ // encrypted payload
+ 0x8a, 0xac, 0xdc, 0xa5,
+ 0x4c, 0xf6, 0x78, 0xa6,
+ 0x62, 0x8f, 0x24, 0xda,
+ 0x6c, 0x09, 0x3f, 0xa9,
+ 0x28, 0x7a, 0xb5, 0x7f,
+ 0x1f, 0x0f, 0xc9, 0x35,
+ // RTCP index
+ 0x80, 0x00, 0x00, 0x03,
+ // HMAC
+ 0xe9, 0x3b, 0xc0, 0x5c, 0x0c, 0x06, 0x9f, 0xab, 0xc0, 0xde,
+};
+
+static const char *aes128_32_key = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn";
+
+static const uint8_t rtp_aes128_32[] = {
+ // RTP header
+ 0x80, 0xe0, 0x12, 0x34,
+ 0x12, 0x34, 0x56, 0x78,
+ 0x12, 0x34, 0x56, 0x78,
+ // encrypted payload
+ 0x62, 0x69, 0x76, 0xca, 0xc5,
+ // HMAC
+ 0xa1, 0xac, 0x1b, 0xb4,
+};
+
+static const uint8_t rtcp_aes128_32[] = {
+ // RTCP header
+ 0x81, 0xc9, 0x00, 0x07,
+ 0x12, 0x34, 0x56, 0x78,
+ // encrypted payload
+ 0x35, 0xe9, 0xb5, 0xff,
+ 0x0d, 0xd1, 0xde, 0x70,
+ 0x74, 0x10, 0xaa, 0x1b,
+ 0xb2, 0x8d, 0xf0, 0x20,
+ 0x02, 0x99, 0x6b, 0x1b,
+ 0x0b, 0xd0, 0x47, 0x34,
+ // RTCP index
+ 0x80, 0x00, 0x00, 0x04,
+ // HMAC
+ 0x5b, 0xd2, 0xa9, 0x9d,
+};
+
+static void print_data(const uint8_t *buf, int len)
+{
+ int i;
+ for (i = 0; i < len; i++)
+ printf("%02x", buf[i]);
+ printf("\n");
+}
+
+static int test_decrypt(struct SRTPContext *srtp, const uint8_t *in, int len,
+ uint8_t *out)
+{
+ memcpy(out, in, len);
+ if (!ff_srtp_decrypt(srtp, out, &len)) {
+ print_data(out, len);
+ return len;
+ } else
+ return -1;
+}
+
+static void test_encrypt(const uint8_t *data, int in_len, const char *suite,
+ const char *key)
+{
+ struct SRTPContext enc = { 0 }, dec = { 0 };
+ int len;
+ char buf[1500];
+ ff_srtp_set_crypto(&enc, suite, key);
+ ff_srtp_set_crypto(&dec, suite, key);
+ len = ff_srtp_encrypt(&enc, data, in_len, buf, sizeof(buf));
+ if (!ff_srtp_decrypt(&dec, buf, &len)) {
+ if (len == in_len && !memcmp(buf, data, len))
+ printf("Decrypted content matches input\n");
+ else
+ printf("Decrypted content doesn't match input\n");
+ } else {
+ printf("Decryption failed\n");
+ }
+ ff_srtp_free(&enc);
+ ff_srtp_free(&dec);
+}
+
+int main(void)
+{
+ static const char *aes128_80_suite = "AES_CM_128_HMAC_SHA1_80";
+ static const char *aes128_32_suite = "AES_CM_128_HMAC_SHA1_32";
+ static const char *test_key = "abcdefghijklmnopqrstuvwxyz1234567890ABCD";
+ uint8_t buf[1500];
+ struct SRTPContext srtp = { 0 };
+ int len;
+ ff_srtp_set_crypto(&srtp, aes128_80_suite, aes128_80_key);
+ len = test_decrypt(&srtp, rtp_aes128_80, sizeof(rtp_aes128_80), buf);
+ test_encrypt(buf, len, aes128_80_suite, test_key);
+ test_encrypt(buf, len, aes128_32_suite, test_key);
+ test_decrypt(&srtp, rtcp_aes128_80, sizeof(rtcp_aes128_80), buf);
+ test_encrypt(buf, len, aes128_80_suite, test_key);
+ test_encrypt(buf, len, aes128_32_suite, test_key);
+ ff_srtp_free(&srtp);
+
+ memset(&srtp, 0, sizeof(srtp)); // Clear the context
+ ff_srtp_set_crypto(&srtp, aes128_32_suite, aes128_32_key);
+ test_decrypt(&srtp, rtp_aes128_32, sizeof(rtp_aes128_32), buf);
+ test_decrypt(&srtp, rtcp_aes128_32, sizeof(rtcp_aes128_32), buf);
+ ff_srtp_free(&srtp);
+ return 0;
+}
+#endif /* TEST */
diff --git a/tests/fate/libavformat.mak b/tests/fate/libavformat.mak
index b6eda42..20bc319 100644
--- a/tests/fate/libavformat.mak
+++ b/tests/fate/libavformat.mak
@@ -1,3 +1,7 @@
+FATE_LIBAVFORMAT += fate-srtp
+fate-srtp: libavformat/srtp-test$(EXESUF)
+fate-srtp: CMD = run libavformat/srtp-test
+
FATE_LIBAVFORMAT += fate-url
fate-url: libavformat/url-test$(EXESUF)
fate-url: CMD = run libavformat/url-test
diff --git a/tests/ref/fate/srtp b/tests/ref/fate/srtp
new file mode 100644
index 0000000..091d3f3
--- /dev/null
+++ b/tests/ref/fate/srtp
@@ -0,0 +1,8 @@
+80e0123412345678123456780102030405
+Decrypted content matches input
+Decrypted content matches input
+81c90007123456788765432100000000000012340000069ec73069ba000001fd
+Decrypted content matches input
+Decrypted content matches input
+80e0123412345678123456780102030405
+81c90007123456788765432100000000000012340000069ec73069ba000001fd
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