
The jar will be treated as unsigned, because it is signed with a weak algorithm that is now disabled. If the file in this example was signed with a weak signature algorithm like MD5withRSA, the following output would be displayed: Running "jarsigner -verify" 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, one can use the jarsigner binary that ships with this JDK. This property contains a list of disabled algorithms and key sizes for cryptographically signed JAR files. The list of disabled algorithms is controlled via the security property,, in the curity file.


Oracle heeft een update voor versie 8 van zowel de developmentkit als de runtime-environment van Java Standard Edition uitgebracht.
