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Security Features in Java SE
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Signing Code and Granting It Permissions
Export the Public Key Certificate
You now have a signed JAR file
sCount.jar.
The runtime system of the code receiver (Ray) will need to authenticate the
signature when the
Count application in the signed JAR file
tries to read a file and a policy file grants
that permission to this signed code.
In order for the runtime system to authenticate the signature,
Ray's keystore needs to have the public key corresponding to the
private key used to generate the signature. You supply this
by sending Ray a copy of the certificate authenticating the public
key. Copy that certificate from the keystore examplestore
to a file named Example.cer via the following:
keytool -export -keystore examplestore -alias signFiles -file Example.cer
You will be prompted for the store password.
