## SignJar

### Description

Signs jar or zip files with the javasign command line tool. The tool detailed dependency checking: files are only signed if they are not signed. The `signjar` attribute can point to the file to generate; if this file exists then its modification date is used as a cue as to whether to resign any JAR file.
Note: Requires Java 1.2 or later.

### Parameters

Attribute | Description | Required
jar | the jar file to sign | Yes.
alias | the alias to sign under | Yes.
storepass | password for keystore integrity. | Yes.
keystore | keystore location | No
storetype | keystore type | No
keypass | password for private key (if different) | No
sigfile | name of .SF/.DSA file | No
signedjar | name of signed JAR file | No
verbose | (true | false) verbose output when signing | No; default false
internalsf | (true | false) include the .SF file inside the signature block | No; default false
sectionsonly | (true | false) don't compute hash of entire manifest | No; default false
lazy | flag to control whether the presence of a signature file means a JAR is signed | No; default false

### Parameters as nested elements

Attribute | Description | Required
fileset | fileset of JAR files to sign | No

### Examples

> `<signjar jar="${dist}/lib/ant.jar" alias="apache-group" storepass="secret"/>`

signs the ant.jar with alias "apache-group" accessing the keystore and private key via "secret" password.

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