The jar may have been signed with a weak algorithm that is now disabled. The updated jarsigner command will exit with the following warning printed to standard output: jar: processEntry caught: : Signature check.If the file in this example was signed with a weak signature algorithm like MD2withRSA, the following output would be displayed: Running jarsigner -verify =jar on a JAR file signed with a weak algorithm or key will print more information about the disabled algorithm or key.įor example, to check a JAR file named test.jar, use the following command: To check if a weak algorithm or key was used to sign a JAR file, you can use the jarsigner binary that ships with this JDK. NOTE: We are planning to restrict MD5-based signatures in signed JARs in the April 2017 CPU. MD2 (in either the digest or signature algorithm).The following algorithms and key sizes are restricted in this release: This property contains a list of disabled algorithms and key sizes for cryptographically signed JAR files. The list of disabled algorithms is controlled via a new security property,, in the curity file. Standalone or Server Applications run with a SecurityManager enabled and that are configured with a policy file that grants permissions based on the code signer(s) of the JAR.This can potentially occur in the following types of applications that use signed JAR files: If the signed JAR file uses a disabled algorithm or key size less than the minimum length, signature verification operations will ignore the signature and treat the JAR file as if it were unsigned. This JDK release introduces new restrictions on how signed JAR files are verified. Restrict JARs signed with weak algorithms and keys If required, this authentication scheme can be reactivated by removing Basic from the .disabledSchemes networking property, or by setting a system property of the same name to "" ( empty ) on the command line.Īdditionally, the .disabledSchemes and .disabledSchemes networking properties, and system properties of the same name, can be used to disable other authentication schemes that may be active when setting up a tunnel for HTTPS, or proxying plain HTTP, respectively. Now, proxies requiring Basic authentication when setting up a tunnel for HTTPS will no longer succeed by default. Accordingly, the Basic authentication scheme has been deactivated, by default, in the Oracle Java Runtime, by adding Basic to the .disabledSchemes networking property. In some environments, certain authentication schemes may be undesirable when proxying HTTPS. This fix improves state synchronization between menus and their containers.ĭisable Basic authentication for HTTPS tunneling The lifecycle management of AWT menu components exposed problems on certain platforms. We recommend that new certificates be requested and existing provider JARs be re-signed.įor details on the JCE provider signing process, please refer to the How to Implement a Provider in the Java Cryptography Architecture documentation. However, this root CA may be disabled at some point in the future. By default, new requests for JCE provider code signing certificates will be issued from this CA.Įxisting certificates from the current JCE provider code signing root will continue to validate. New JCE provider code signing certificates issued from this CA will be used to sign JCE providers from this point forward. In order to support longer key lengths and stronger signature algorithms, a new JCE Provider Code Signing root certificate authority has been created and its certificate added to Oracle JDK. For more information, see JRE Expiration Date. After either condition is met (new release becoming available or expiration date reached), the JRE will provide additional warnings and reminders to users to update to the newer version. This JRE (version 8u111) will expire with the release of the next critical patch update scheduled for January 17, 2017.įor systems unable to reach the Oracle Servers, a secondary mechanism expires this JRE (version 8u111) on February 17, 2017. Critical patch updates, which contain security vulnerability fixes, are announced one year in advance on Critical Patch Updates, Security Alerts and Third Party Bulletin. The JRE expires whenever a new release with security vulnerability fixes becomes available. JRE Security Baseline (Full Version String)
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