tldr/pages/common/jarsigner.md

jarsigner

Sign and verify Java archive (.jar) files. More information: https://docs.oracle.com/en/java/javase/25/docs/specs/man/jarsigner.html.

• Sign a .jar file:

jarsigner {{path/to/file.jar}} {{keystore_alias}}

• Sign a .jar file with a specific algorithm:

jarsigner -sigalg {{algorithm}} {{path/to/file.jar}} {{keystore_alias}}

• Verify the signature of a .jar file:

jarsigner -verify {{path/to/file.jar}}