Android privacy guard

Good news - Android Privacy Guard (APG) has all the tools we need for signing and encrypting data from SSC. I assumed so because this is already being done with K9Mail, but I hadn't found this specific documentation until now.

http://code.google.com/p/android-privacy-guard/wiki/UsingApgForDevelopment

Intents: Apg.Intent.ENCRYPT_AND_RETURN

Encrypt data and return the result.

Intent.getData() (Uri), Apg.EXTRA_DATA (byte), Apg.EXTRA_TEXT (String) - data source Apg.EXTRA_ASCII_ARMOUR (boolean) - use ASCII armour true: if EXTRA_DATA or EXTRA_TEXT were used, then the data is returned with Apg.EXTRA_ENCRYPTED_TEXT false: EXTRA_DATA or EXTRA_TEXT were used, then the data is returned with Apg.EXTRA_ENCRYPTED_DATA Apg.EXTRA_ENCRYPTION_KEY_IDS (long) - the list of encryption keys Apg.EXTRA_SIGNATURE_KEY_ID (long) - the signature key returns Apg.EXTRA_ENCRYPTED_DATA (byte) or Apg.EXTRA_ENCRYPTED_TEXT (String) Apg.Intent.DECRYPT_AND_RETURN

Decrypt data and return the result. Intent.getData() (Uri), Apg.EXTRA_DATA (byte), Apg.EXTRA_TEXT (String) - data source Apg.EXTRA_BINARY (boolean) - return the decrypted data as byte array true: the data is returned with Apg.EXTRA_DECRYPTED_DATA false: the data is returned with Apg.EXTRA_DECRYPTED_TEXT returns Apg.EXTRA_DECRYPTED_DATA (byte) or Apg.EXTRA_DECRYPTED_TEXT (String) if signed: returns Apg.EXTRA_SIGNATURE_KEY_ID (long) - the signature key ID returns Apg.EXTRA_SIGNATURE_USER_ID (String) - the user ID of the signature returns Apg.EXTRA_SIGNATURE_SUCCESS (boolean) - signature is correct returns Apg.EXTRA_SIGNATURE_UNKNOWN (boolean) - signature is unknown Apg.Intent.SELECT_SECRET_KEY

Select a secret key from the list and return its ID. result returned in Apg.EXTRA_SECRET_KEY (long) Apg.Intent.SELECT_PUBLIC_KEYS

Select some public keys from the list and return their IDs. Apg.EXTRA_SELECTION (long) - pass a list of IDs for keys that are selected already result returned in Apg.EXTRA_SELECTION (long)