RFR: 8288985: P11TlsKeyMaterialGenerator should work with ChaCha20-Poly1305 [v3]

Valerie Peng valeriep at openjdk.org
Thu Jun 23 23:04:02 UTC 2022


On Thu, 23 Jun 2022 22:07:42 GMT, zzambers <duke at openjdk.org> wrote:

>> TLS `*_CHACHA20_POLY1305_*` cipher suites are currently broken when configuration with SunPKCS11 provider is used. I discovered this by my ssl-tests testsuite [1].
>> 
>> 
>> make TEST_PKCS11_FIPS=1 SSLTESTS_SSL_CONFIG_FILTER=SunJSSE,Default,TLSv1.2,TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 SSLTESTS_CUSTOM_JAVA_PARAMS=-Djdk.tls.ephemeralDHKeySize=2048 ssl-tests
>> ...
>> javax.net.ssl.SSLException: Unknown algorithm: ChaCha20-Poly1305
>> 	at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:132)
>> 	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:371)
>> 	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:314)
>> 	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:309)
>> 	at java.base/sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1712)
>> 	at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:470)
>> 	at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:426)
>> 	at SSLSocketClient.test(SSLSocketClient.java:72)
>> 	at SSLSocketTester.testConfiguration(SSLSocketTester.java:392)
>> 	at SSLSocketTester.testConfigurations(SSLSocketTester.java:322)
>> 	at SSLSocketTester.testProvider(SSLSocketTester.java:234)
>> 	at SSLSocketTester.testProviders(SSLSocketTester.java:190)
>> 	at Main.main(Main.java:30)
>> Caused by: java.security.ProviderException: Unknown algorithm: ChaCha20-Poly1305
>> 	at jdk.crypto.cryptoki/sun.security.pkcs11.P11TlsKeyMaterialGenerator.engineGenerateKey(P11TlsKeyMaterialGenerator.java:168)
>> 	at java.base/javax.crypto.KeyGenerator.generateKey(KeyGenerator.java:564)
>> 	at java.base/sun.security.ssl.SSLTrafficKeyDerivation$LegacyTrafficKeyDerivation.<init>(SSLTrafficKeyDerivation.java:282)
>> 	at java.base/sun.security.ssl.SSLTrafficKeyDerivation$T12TrafficKeyDerivationGenerator.createKeyDerivation(SSLTrafficKeyDerivation.java:117)
>> 	at java.base/sun.security.ssl.SSLTrafficKeyDerivation.createKeyDerivation(SSLTrafficKeyDerivation.java:79)
>> 	at java.base/sun.security.ssl.DHClientKeyExchange$DHClientKeyExchangeProducer.produce(DHClientKeyExchange.java:221)
>> 	at java.base/sun.security.ssl.ClientKeyExchange$ClientKeyExchangeProducer.produce(ClientKeyExchange.java:65)
>> 	at java.base/sun.security.ssl.SSLHandshake.produce(SSLHandshake.java:440)
>> 	at java.base/sun.security.ssl.ServerHelloDone$ServerHelloDoneConsumer.consume(ServerHelloDone.java:182)
>> 	at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:396)
>> 	at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:480)
>> 	at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:458)
>> 	at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:201)
>> 	at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172)
>> 	at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1510)
>> 	at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1425)
>> 	at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:455)
>> 	... 7 more
>> 
>> FAILED: SunJSSE/Default: TLSv1.2 + TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256
>> 
>> 
>> Problem:
>> Exception is thrown by P11TlsKeyMaterialGenerator.engineGenerateKey method [2], based on result of P11SecretKeyFactory.getKeyType method [3], which only "knows" "ChaCha20" key algorithm, but does not accept "ChaCha20-Poly1305" as algorithm. Algorithm value is passed from SSLTrafficKeyDerivation.LegacyTrafficKeyDerivation class [4], which leads to algorithm field in SSLCipher class [5]. Value of that field comes from cipher name in JsseJce class [6] (ending at first slash, if any).
>> 
>> Fix:
>> This fix basically modifies P11SecretKeyFactory.getKeyType method to accept "ChaCha20-Poly1305" as alias for "ChaCha20". 
>> 
>> Testing:
>> I ran jdk_security tests locally and they passed. Also failure in ssl-tests gets fixed.
>> 
>> [1] https://urldefense.com/v3/__https://github.com/zzambers/ssl-tests__;!!ACWV5N9M2RV99hQ!NkKDKTC1HJP1zRwYPBG_S8tcH8-fjaZQqUESU0pGPJNMl-_nUg9yiQiJ7eZm35pRa22MQKfBPiChpF2RXhcORrrb$ 
>> [2] https://urldefense.com/v3/__https://github.com/openjdk/jdk/blob/b7a34f728d0653d55ef01da045c9aad4c0471143/src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/P11TlsKeyMaterialGenerator.java*L168__;Iw!!ACWV5N9M2RV99hQ!NkKDKTC1HJP1zRwYPBG_S8tcH8-fjaZQqUESU0pGPJNMl-_nUg9yiQiJ7eZm35pRa22MQKfBPiChpF2RXroZ9zf5$ 
>> [3] https://urldefense.com/v3/__https://github.com/openjdk/jdk/blob/b7a34f728d0653d55ef01da045c9aad4c0471143/src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/P11SecretKeyFactory.java*L101__;Iw!!ACWV5N9M2RV99hQ!NkKDKTC1HJP1zRwYPBG_S8tcH8-fjaZQqUESU0pGPJNMl-_nUg9yiQiJ7eZm35pRa22MQKfBPiChpF2RXr9N27hf$ 
>> [4] https://urldefense.com/v3/__https://github.com/openjdk/jdk/blob/b7a34f728d0653d55ef01da045c9aad4c0471143/src/java.base/share/classes/sun/security/ssl/SSLTrafficKeyDerivation.java*L270__;Iw!!ACWV5N9M2RV99hQ!NkKDKTC1HJP1zRwYPBG_S8tcH8-fjaZQqUESU0pGPJNMl-_nUg9yiQiJ7eZm35pRa22MQKfBPiChpF2RXt6Noj0J$ 
>> [5] https://urldefense.com/v3/__https://github.com/openjdk/jdk/blob/b7a34f728d0653d55ef01da045c9aad4c0471143/src/java.base/share/classes/sun/security/ssl/SSLCipher.java*L496__;Iw!!ACWV5N9M2RV99hQ!NkKDKTC1HJP1zRwYPBG_S8tcH8-fjaZQqUESU0pGPJNMl-_nUg9yiQiJ7eZm35pRa22MQKfBPiChpF2RXlpeoiLU$ 
>> [6] https://urldefense.com/v3/__https://github.com/openjdk/jdk/blob/b7a34f728d0653d55ef01da045c9aad4c0471143/src/java.base/share/classes/sun/security/ssl/JsseJce.java*L81__;Iw!!ACWV5N9M2RV99hQ!NkKDKTC1HJP1zRwYPBG_S8tcH8-fjaZQqUESU0pGPJNMl-_nUg9yiQiJ7eZm35pRa22MQKfBPiChpF2RXvb4GCuu$ 
>
> zzambers has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Link in comment made pernament
>  - ChaCha20-Poly1305 added as key type

test/jdk/sun/security/pkcs11/tls/TestKeyMaterialChaCha20.java line 57:

> 55:             System.out.println("Skipping, ChaCha20 not supported");
> 56:             return;
> 57:         }

This test does not use CKM_CHACHA20_KEY_GEN, and the test passes when I run it against the version of NSS which does not support CKM_CHACHA20_KEY_GEN. Since the test requires the provider to support  "SunTlsRsaPremasterSecret", "SunTls12MasterSecret", and "SunTls12KeyMaterial" key generators, probably should base the check on them instead?

test/jdk/sun/security/pkcs11/tls/TestKeyMaterialChaCha20.java line 74:

> 72: 
> 73:         // https://urldefense.com/v3/__https://github.com/openjdk/jdk/blob/ccec5d1e8529c8211cc678d8acc8d37fe461cb51/src/java.base/share/classes/sun/security/ssl/SSLTrafficKeyDerivation.java*L270__;Iw!!ACWV5N9M2RV99hQ!NkKDKTC1HJP1zRwYPBG_S8tcH8-fjaZQqUESU0pGPJNMl-_nUg9yiQiJ7eZm35pRa22MQKfBPiChpF2RXqs5Fs1V$ 
> 74:         // https://urldefense.com/v3/__https://github.com/openjdk/jdk/blob/ccec5d1e8529c8211cc678d8acc8d37fe461cb51/src/java.base/share/classes/sun/security/ssl/CipherSuite.java*L93__;Iw!!ACWV5N9M2RV99hQ!NkKDKTC1HJP1zRwYPBG_S8tcH8-fjaZQqUESU0pGPJNMl-_nUg9yiQiJ7eZm35pRa22MQKfBPiChpF2RXuIwam32$ 

nit: do these two links really needed? If yes, add some more text for their purpose?

-------------

PR: https://git.openjdk.org/jdk/pull/9072


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