Re: KDF API review, round 2

[Jamil Nimeh]

Hello everyone, one other request.  I would like to end this comment 
period by the end of next week (11/24) ideally.

Thanks,
--Jamil
On 11/15/2017 08:43 AM, Jamil Nimeh wrote:
Hello all,

Thanks to everyone who has given input so far.  I've updated the 
KeyDerivation API with the comments I've received.  The new 
specification is here:

Text: http://cr.openjdk.java.net/~jnimeh/reviews/kdfspec/kdfspec.02.txt
Javadoc: http://cr.openjdk.java.net/~jnimeh/reviews/kdfspec/javadoc.02/

In terms of high level changes:

  * Moved to a getInstance/init usage pattern similar to Mac,
    KeyAgreement, Cipher, etc.  This allows KDF objects to be reused
    with different parameters by reinitializing.
  * Name change: DerivedKeyParameterSpec --> DerivationParameterSpec
  * Keys returned by derivation methods are now java.security.Key
    rather than SecretKey
  * Provided additional derivation methods to support non-key based
    output: deriveData, deriveObject
  * Added a new constructor to DerivationParameterSpec to support the
    Object return type.

Thanks,
--Jamil