Sign MIDlet Suites (jadtool)

jadtool is a command-line interface for signing MIDlet suites using public key cryptography according to the MIDP 2.0 specification. Signing a MIDlet suite is the process of adding the signer certificates and the digital signature of the JAR file to a JAD file. jadtool is also capable of signing payment update (JPP) files.

jadtool only uses certificates and keys from Java SE platform keystores. Java SE software provides keytool, the command-line tool to manage Java SE platform keystores.

jadtool is packaged in a JAR file. To run it, open a command prompt, change the current directory to installdir\bin, and enter the following command:

The commands are as follows:

• -help

  Prints the usage instructions for jadtool.

• -addcert -alias alias [-keystore keystore] [-storepass password] [-storetype PKCS11] [-certnum number] [-chainnum number] [-encoding encoding] -inputjad | inputjpp input-file -outputjad | outputjpp output-file

  Adds the certificate of the key pair from the given keystore to the JAD file or JPP file.

• -addjarsig [-jarfile jarfile ] [-keystore keystore ] [-alias alias] [-storepass password] [-storetype PKCS11] [-keypass password] [encoding encoding] [-inputjad input-jadfile ] [-outputjad output-jadfile]

  Adds the digital signature of the given JAR file to the specified JAD file. The default value for -jarfile is the MIDlet-Jar-URL property in the JAD file.

• -showcert [([-certnum number] [-chainnum number]) | -all [-encoding encoding] -inputjad filename | -inputjpp filename

  Displays information about certificates in JAD and JPP files.

• -addjppsig -keypass password -alias alias [-keystore keystore] [-storepass password] [-keystore none|keystore] [-storetype PKCS11] [-encoding encoding] -inputjpp filename -outputjpp filename

  Adds a digital signature of the input JPP file to the specified output JPP file.

The default values are as follows:

• -encoding - UTF-8

• -jarfile - MIDlet-Jar-URL property in the JAD file

• -keystore - %HOMEPATH%\.keystore

• -certnum - 1

• -chainnum - 1