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Test Simultaneous Decrypt

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Merge from Widevine repo of http://go/wvgerrit/16499

With the increasing number of devices that support multiple screens or
windows, it is desireable to verify that OEMCrypto can have several
sessions open and actively decrypting at the same time.

Calls to OEMCrypto are still serialized -- this is not a threading
test -- but we still have multiple sessions open and decrypt from each
of them.

Change-Id: I5b24f4a464ed05a5b21625c66fe7989644b67a5a
This commit is contained in:
Fred Gylys-Colwell
2016-01-22 11:38:58 -08:00
parent 280a9e47a0
commit 35a080a57d
1 changed files with 53 additions and 0 deletions
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53
libwvdrmengine/oemcrypto/test/oemcrypto_test.cpp
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@@ -2357,6 +2357,59 @@ TEST_F(OEMCryptoSessionTests, DecryptZeroDuration) {
ASSERT_NO_FATAL_FAILURE(s.TestDecryptCTR());
}
TEST_F(OEMCryptoSessionTests, SimultaneousDecrypt) {
vector<Session> s(8);
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].open());
}
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].GenerateTestSessionKeys());
ASSERT_NO_FATAL_FAILURE(s[i].FillSimpleMessage(kDuration, 0,
s[i].get_nonce()));
ASSERT_NO_FATAL_FAILURE(s[i].EncryptAndSign());
}
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].LoadTestKeys());
}
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].TestDecryptCTR());
}
// Second call to decrypt for each session.
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].TestDecryptCTR());
}
}
TEST_F(OEMCryptoSessionTests, SimultaneousDecryptWithLostMessage) {
vector<Session> s(8);
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].open());
}
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].GenerateTestSessionKeys());
ASSERT_NO_FATAL_FAILURE(s[i].FillSimpleMessage(kDuration, 0,
s[i].get_nonce()));
ASSERT_NO_FATAL_FAILURE(s[i].EncryptAndSign());
}
// First set of messages are lost. Generate second set.
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].GenerateTestSessionKeys());
ASSERT_NO_FATAL_FAILURE(s[i].FillSimpleMessage(kDuration, 0,
s[i].get_nonce()));
ASSERT_NO_FATAL_FAILURE(s[i].EncryptAndSign());
}
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].LoadTestKeys());
}
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].TestDecryptCTR());
}
// Second call to decrypt for each session.
for (int i = 0; i < 8; i++) {
ASSERT_NO_FATAL_FAILURE(s[i].TestDecryptCTR());
}
}
class OEMCryptoSessionTestsDecryptEdgeCases : public OEMCryptoSessionTests {
public:
// Increment counter for AES-CTR. The CENC spec specifies we increment only