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[jose] Std Java key representation of OKP in draft-liusvaara-jose-cfrg-curves-00

Vladimir Dzhuvinov <vladimir@connect2id.com> Thu, 24 December 2015 10:53 UTC

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To: Ilari Liusvaara <ilariliusvaara@welho.com>
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From: Vladimir Dzhuvinov <vladimir@connect2id.com>
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Subject: [jose] Std Java key representation of OKP in draft-liusvaara-jose-cfrg-curves-00
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Hi Ilari,

Thank you for making this new contribution to the JOSE suite.

The Java library for JOSE that I maintain includes methods for
converting between JWK instances and the standard Java types for
representing keys. My reading of the spec is that the established Java
DHPublicKey
<https://docs.oracle.com/javase/7/docs/api/javax/crypto/interfaces/DHPublicKey.html>
/ DHPrivateKey
<https://docs.oracle.com/javase/7/docs/api/javax/crypto/interfaces/DHPrivateKey.html>
interfaces would be the best match for the proposed "OKP" JWK. Does this
make sense?

The current JWK types map as follows:

  * "OCT" JWKs map to / from javax.crypto.SecretKey

  * "RSA" JWKs map to / from java.security.interfaces.RSA{Public|Private}Key

  * "EC" JWKs map to / from java.security.interfaces.EC{Public|Private}Key


Can you recommend Java implementations of the new algs? I'm looking for
a good place to start in order to add support for them in JOSE.

Thanks,

Vladimir

-- 
Vladimir Dzhuvinov

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