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cc21bb3a56915842b545a577d3481047005b1764
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4 Commits

Author SHA1 Message Date
Alex Klyubin
cc21bb3a56 Add license banner to recently added AndroidKeyStore files. 
Bug: 18088752
Change-Id: I027f9530a02cca081aae8eb94833d2fdcb678e9a
 2015-03-31 16:50:37 -07:00
Alex Klyubin
acc835f385 Add SecretKeyFactory backed by AndroidKeyStore. 
This factory provides a way to obtain information about a SecretKey
backed by AndroidKeyStore. The information is provided in a form of an
instance of KeyStoreKeySpec class.

EXAMPLE

SecretKeyFactory factory = SecretKeyFactory.getInstance(
        key.getAlgorithm(), "AndroidKeyStore");
KeyStoreKeySpec keySpec =
    factory.getKeySpec(key, KeyStoreKeySpec.class);

Bug: 18088752
Change-Id: I26c9dd544f80230fe7039501eeb471eaf875452b
 2015-03-31 15:29:48 -07:00
Alex Klyubin
4ab8ea4498 Add HmacSHA256 backed by AndroidKeyStore. 
This also adds the MAC length constraint on imported HMAC keys. HMAC
doesn't work without this constraint at the moment.

Bug: 18088752
Change-Id: I8613f58f5d2a84df00bcf6179d13e30619440330
 2015-03-30 12:53:23 -07:00
Alex Klyubin
d23a1f706f Symmetric key generation for AndroidKeyStore. 
This currently supports AES and HMAC with SHA-256.

Bug: 18088752
Change-Id: Ife55438cf4129b895295681bb35091cd37eb73fb
 2015-03-27 15:57:53 -07:00