JDK-8177143 : Release Note: Increase the priorities of GCM cipher suites
- Type: Sub-task
- Component: security-libs
- Sub-Component: javax.net.ssl
- Affected Version: 8u261,9
- Priority: P4
- Status: Closed
- Resolution: Delivered
- Submitted: 2017-03-20
- Updated: 2020-05-27
- Resolved: 2017-03-21
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
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| JDK 8 | JDK 9 |
|---|---|
8u261Resolved  |
9Resolved |
Description
In TLS, a ciphersuite defines a specific set of cryptography algorithms used in a TLS connection. JSSE maintains a prioritized list of ciphersuites. In this update, GCM-based cipher suites are configured as the most preferable default cipher suites in the SunJSSE provider. In the SunJSSE provider, the following ciphersuites are now the most preferred by default: ``` TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 ``` Note that this is a behavior change of the SunJSSE provider in the JDK, it is not guaranteed to be examined and used by other JSSE providers. There is no guarantee the cipher suites priorities will remain the same in future updates or releases.