[SOLVED] where can I find KeyGenParameterSpec.java

where can I find KeyGenParameterSpec.java

I am creating a RSA key pair in my Android KeyStore. I am using eclipse. I need to use KeyGenParameterSpec class to give my key an alias, so that I can delete it later, but I cant find this class. Can anyone let me know which jar would this be present in. The official page says that its present at android.security.keystore.KeyGenParameterSpec, but the problem is that I cant find this jar.

Thanks in advance!

Solution

KeyGenParameterSpec is in the package android.security.keystore, but you can't see the constructor because it is annotate with @hide as you can see in the source code.

Quoting form the doclava documentation:

When applied to a package, class, method or field, @hide removes that node and all of its children from the documentation.

If you want to create a KeyGenParameterSpec you need to use the Builder:

new KeyGenParameterSpec.Builder(KEY_NAME, KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
        .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
        .setUserAuthenticationRequired(true)
        .setUserAuthenticationValidityDurationSeconds(AUTHENTICATION_DURATION_SECONDS)
        .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
        .build()