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-This is the old API. Currently disabled!
-
-# Security Model
-
-## Basic goals
-
-* Intents without permissions should only work based on user interaction (e.g. click a button in a dialog)
-
-Android primitives to exchange data: Intent, Intent with return values, Send (also an Intent), Content Provider, AIDL
-
-## Possible Permissions
-
-* ACCESS_API: Encrypt/Sign/Decrypt/Create keys without user interaction (intents, remote service), Read key information (not the actual keys)(content provider)
-* ACCESS_KEYS: get and import actual public and secret keys (remote service)
-
-
-## Without Permissions
-
-### Intents
-All Intents start with org.sufficientlysecure.keychain.action.
-
-* android.intent.action.VIEW connected to .gpg and .asc files: Import Key and Decrypt
-* android.intent.action.SEND connected to all mime types (text/plain and every binary data like files and images): Encrypt and Decrypt
-* IMPORT
-* IMPORT_FROM_FILE
-* IMPORT_FROM_QR_CODE
-* IMPORT_FROM_NFC
-* SHARE_KEYRING
-* SHARE_KEYRING_WITH_QR_CODE
-* SHARE_KEYRING_WITH_NFC
-* EDIT_KEYRING
-* SELECT_PUBLIC_KEYRINGS
-* SELECT_SECRET_KEYRING
-* ENCRYPT
-* ENCRYPT_FILE
-* DECRYPT
-* DECRYPT_FILE
-
-## With permission ACCESS_API
-
-### Intents
-
-* CREATE_KEYRING
-* ENCRYPT_AND_RETURN
-* ENCRYPT_STREAM_AND_RETURN
-* GENERATE_SIGNATURE_AND_RETURN
-* DECRYPT_AND_RETURN
-* DECRYPT_STREAM_AND_RETURN
-
-### Broadcast Receiver
-On change of database the following broadcast is send.
-* DATABASE_CHANGE
-
-### Content Provider
-
-* The whole content provider requires a permission (only read)
-* Don't give out blobs (keys can be accessed by ACCESS_KEYS via remote service)
-* Make an internal and external content provider (or pathes with <path-permission>)
-* Look at android:grantUriPermissions especially for ApgServiceBlobProvider
-* Only give out android:readPermission
-
-### ApgApiService (Remote Service)
-AIDL service
-
-## With permission ACCESS_KEYS
-
-### ApgKeyService (Remote Service)
-AIDL service to access actual private keyring objects
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