[jose] Point of curiosity on A256CBC-HS512
Brian Campbell <bcampbell@pingidentity.com> Mon, 29 July 2013 12:04 UTC
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From: Brian Campbell <bcampbell@pingidentity.com>
Date: Mon, 29 Jul 2013 14:03:31 +0200
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Subject: [jose] Point of curiosity on A256CBC-HS512
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Is there a specific reason that AES_256_CBC_HMAC_SHA_512 / A256CBC-HS512 [1] uses SHA-512 and truncates to 32 octets rather than just using the 32 octets of SHA-256 outright? I was working on implementing it yesterday and it just struck me as kind of odd - so wanted to ask if there was more to it than my surface level observation. [1] http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-13#section-4.10.4
- [jose] Point of curiosity on A256CBC-HS512 Brian Campbell