The Android KeyStore backed KeyPairGenerator can generate EC key
pairs, but it cannot be instantiated via the standard JCA approach of
KeyPairGenerator.getInstance("EC", "AndroidKeyStore"). Instead, the
user must invoke KeyPairGenerator.getInstance("RSA",
"AndroidKeyStore") and then tell it to generate an EC key pair.
This CL fixes this weirdness.
The fix requires the introduction of late resolution of key algorithm
and default key size. Prior to this CL, these parameters were resolved
prior to KeyPairGenerator initialization, inside KeyPairGeneratorSpec.
In this CL, these parameters are resolved during KeyPairGenerator
initialization. This is fine because KeyPairGeneratorSpec should be as
dumb as possible and all the logic should reside in KeyPairGenerator
and lower layers.
Bug: 19018089
Change-Id: I114502356e6c9691518cf05b6d9eb0920b4fe0b2
Add the encrypted flag for the KeyPairGenerator and the KeyStore so that
applications can choose to allow entries when there is no lockscreen.
Bug: 8122243
Change-Id: Ia802afe965f2377ad3f282dab8c512388c705850
This allows end-users to generate keys in the keystore without the
private part of the key ever needing to leave the device. The generation
process also generates a self-signed certificate.
Change-Id: I114ffb8e0cbe3b1edaae7e69e8aa578cb835efc9
This introduces a public API for the Android keystore that is accessible
via java.security.KeyStore API. This allows programs to store
PrivateKeyEntry and TrustedCertificateEntry items visible only to
themselves.
Future work should include:
* Implement KeyStore.CallbackHandlerProtection parameter to allow the
caller to request that the keystore daemon unlock itself via the
system password input dialog.
* Implement SecretKeyEntry once that support is in keystore daemon
Change-Id: I382ffdf742d3f9f7647c5f5a429244a340b6bb0a
