public void HmacTest()
{
var ctx = new SrtpContext();
var hmac = new byte[SrtpContext.HMAC_SHA1_SIZE];
ctx.CalcHmac(
BufferPrimitives.ParseHexStream("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b"), 20,
Encoding.UTF8.GetBytes("Hi There"), 8,
hmac);
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("b617318655057264e28bc0b6fb378c8ef146be00"),
hmac);
ctx.CalcHmac(
Encoding.UTF8.GetBytes("Jefe"), 4,
Encoding.UTF8.GetBytes("what do ya want for nothing?"), 28,
hmac);
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("effcdf6ae5eb2fa2d27416d5f184df9c259a7c79"),
hmac);
ctx.CalcHmac(
BufferPrimitives.ParseHexStream("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"), 20,
Enumerable.Range(0, 50).Select(_ => (byte)0xdd).ToArray(), 50,
hmac);
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("125d7342b9ac11cd91a39af48aa17b4f63f175d3"),
hmac);
}
public void KeyDerivationTestVectors()
{
var ctx = new SrtpContext();
var sessionKey = new byte[16];
var sessionSalt = new byte[16];
var sessionAuth = new byte[96];
ctx.GenerateSessionKey(
BufferPrimitives.ParseHexStream("E1F97A0D3E018BE0D64FA32C06DE4139"),
BufferPrimitives.ParseHexStream("0EC675AD498AFEEBB6960B3AABE6"),
sessionKey,
sessionSalt,
sessionAuth);
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("C61E7A93744F39EE10734AFE3FF7A087"),
sessionKey);
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("30CBBC08863D8C85D49DB34A9AE17AC6"),
sessionSalt);
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("CEBE321F6FF7716B6FD4AB49AF256A15" +
"6D38BAA48F0A0ACF3C34E2359E6CDBCE" +
"E049646C43D9327AD175578EF7227098" +
"6371C10C9A369AC2F94A8C5FBCDDDC25" +
"6D6E919A48B610EF17C2041E47403576" +
"6B68642C59BBFC2F34DB60DBDFB2DC68"),
sessionAuth);
}
public void AesCmTestVector()
{
var ctx = new SrtpContext();
var keyStream = new byte[48];
ctx.GenerateKeyStream(
BufferPrimitives.ParseHexStream("2B7E151628AED2A6ABF7158809CF4F3C"),
BufferPrimitives.ParseHexStream("F0F1F2F3F4F5F6F7F8F9FAFBFCFD0000"),
keyStream);
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("E03EAD0935C95E80E166B16DD92B4EB4" +
"D23513162B02D0F72A43A2FE4A5F97AB" +
"41E95B3BB0A2E8DD477901E4FCA894C0"),
keyStream);
ctx.GenerateKeyStream(
BufferPrimitives.ParseHexStream("2B7E151628AED2A6ABF7158809CF4F3C"),
BufferPrimitives.ParseHexStream("F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF"),
keyStream);
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("EC8CDF7398607CB0F2D21675EA9EA1E4" +
"362B7C3C6773516318A077D7FC5073AE" +
"6A2CC3787889374FBEB4C81B17BA6C44"),
keyStream);
}
public void ParseSrtpPacketLibSrtp()
{
var ctx = new SrtpContext();
ctx.SetMasterKeys(
BufferPrimitives.ParseHexStream("00000000000000000000000000000000"),
BufferPrimitives.ParseHexStream("0000000000000000000000000000"),
BufferPrimitives.ParseHexStream("E1F97A0D3E018BE0D64FA32C06DE4139"),
BufferPrimitives.ParseHexStream("0EC675AD498AFEEBB6960B3AABE6"));
if (ctx.TryParseSrtpPacket(
BufferPrimitives.ParseHexStream("800F1234DECAFBADCAFEBABE4E55DC4CE79978D88CA4D215949D2402B78D6ACC99EA179B8DBB"),
out var rtpPacket) != RtpPacket.ResultCodes.Ok)
{
Assert.Fail("Cannot unpack srtpPacket");
}
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("ABABABABABABABABABABABABABABABAB"),
rtpPacket.Payload);
}
public void ParseSrtpPacketReal()
{
var ctx = new SrtpContext();
ctx.SetMasterKeys(
BufferPrimitives.ParseHexStream("00000000000000000000000000000000"),
BufferPrimitives.ParseHexStream("0000000000000000000000000000"),
BufferPrimitives.ParseHexStream("F4741D27D75AAEA76ABCCA98C03DB931"),
BufferPrimitives.ParseHexStream("F4C375B9F90823019060B3FC3AC5"));
if (ctx.TryParseSrtpPacket(
BufferPrimitives.ParseHexStream("8080488070C7E0A6B695617903141F73CAF634C2F9B2D0FA909C1CC5D5EEECF02A27C118735D9FEACE9B7D37FE29FBAB5D4D2F2A8EB1B6C7AECE93703211BA40BF4706D084655A6DD0B2398FA2A213405C794908E24B99DB901072E1E165B0A6AAB086B704D5176373F72297E2CA3786B7240DF14F97C065DCD29F040E0F184680CA4E1F93B948495BC8D485C8B484C558D9A11BA0C0001B176F2CA09DFF327FF2FB2AE314BF52F22AEC34A96269E7D5775AE92DDF4C"),
out var rtpPacket) != RtpPacket.ResultCodes.Ok)
{
Assert.Fail("Cannot unpack srtpPacket");
}
CollectionAssert.AreEqual(
Enumerable.Range(0, 160).Select(_ => (byte)0xff),
rtpPacket.Payload);
if (ctx.TryParseSrtpPacket(
BufferPrimitives.ParseHexStream("8000488170C7E146B6956179F2193668F88A223F3A40560D876E837CD178256CE01CEB847A2134FC03213F4D57D728C331678E2C4F5DCA0CBBDFE67140D0C0D85921219EDAFCEDA30B03B86830DB045CFED45AF34E004194ACCA9121F22303DE57BC72B1783C86E64DFC92940CD254BA4A996EF73837BD56018DF1FF1F4D9F41946BF268584B6276F09F32DFD361201B84DA439DDA0A076AC36D2840263C39B90114F938E1CEFAA3ED3DD430025298DE15F0D406078A"),
out rtpPacket) != RtpPacket.ResultCodes.Ok)
{
Assert.Fail("Cannot unpack srtpPacket");
}
CollectionAssert.AreEqual(
Enumerable.Range(0, 160).Select(_ => (byte)0xff),
rtpPacket.Payload);
if (ctx.TryParseSrtpPacket(
BufferPrimitives.ParseHexStream("8000488270C7E1E6B69561797C9C3C5FE6854AA81AEF920F7B771FCED9C04B0E2E84216C4D84757E9E98E05232140CA3BD19DA26EF6581AE4E5CAAC13032F4889E7EBFAC7391EEA5B250C48D7779C1F6E4D6DFEB63CACD2105819B2A6A322D46FE726876891927725256B017877D59AB5FEFFDFDB51190C6A02649D198F2C6ECA54402EDCA4DE9C73F41992ABE1B259470AC6AB0A6EC8E462A001A129FF38589EC8C781272D8BBC14AD2D2365C6CBA8A18FE080F5150"),
out rtpPacket) != RtpPacket.ResultCodes.Ok)
{
Assert.Fail("Cannot unpack srtpPacket");
}
CollectionAssert.AreEqual(
Enumerable.Range(0, 160).Select(_ => (byte)0xff),
rtpPacket.Payload);
}
public void PackSrtpPacketLibSrtp()
{
var ctx = new SrtpContext();
ctx.SetMasterKeys(
BufferPrimitives.ParseHexStream("E1F97A0D3E018BE0D64FA32C06DE4139"),
BufferPrimitives.ParseHexStream("0EC675AD498AFEEBB6960B3AABE6"),
BufferPrimitives.ParseHexStream("00000000000000000000000000000000"),
BufferPrimitives.ParseHexStream("0000000000000000000000000000"));
var rtpPacket = new RtpPacket
{
Payload = BufferPrimitives.ParseHexStream("ABABABABABABABABABABABABABABABAB"),
PayloadType = 0x0F,
SequenceNumber = 0x1234,
Ssrc = 0xCAFEBABE,
Timestamp = 0xDECAFBAD,
};
CollectionAssert.AreEqual(
BufferPrimitives.ParseHexStream("800F1234DECAFBADCAFEBABE4E55DC4CE79978D88CA4D215949D2402B78D6ACC99EA179B8DBB"),
ctx.PackSrtpPacket(rtpPacket));
}
