./development/tools/make_key build/target/product/security/media '/C=US/ST=Michigan/L=Grand Rapids/O=My Company/OU=My Product Name/CN=Android/[email protected]' Generate ROM signing keys : testkey : Default key for packages that don't specify otherwise. platform : Key for packages that are part of the core platform. shared : Key for packages that are shared in the home/contacts process. media : Key for packages that are part of the media/download system.