Re: Recognized algorithm names for SHA-2 algorithms

On Tue, Aug 21, 2012 at 8:02 PM, Ryan Sleevi <sleevi@google.com> wrote:
> On Tue, Aug 21, 2012 at 7:42 PM, Wan-Teh Chang <wtc@google.com> wrote:
>> Ryan,
>>
>> In r1.16 of the Editor's Draft, the recognized algorithm names for
>> SHA-2 algorithms are:
>> "SHA-2-224"
>>     The SHA-2 224-bit algorithm as specified in Section 6.3
>> "SHA-2-256"
>>     The SHA-2 256-bit algorithm as specified in Section 6.2
>> "SHA-2-384"
>>     The SHA-2 384-bit algorithm as specified in Section 6.5
>> "SHA-2-512"
>>     The SHA-2 512-bit algorithm as specified in Section 6.4
>>
>> I suggest that we use the exact algorithm names used in FIPS 180-3:
>> "SHA-224", "SHA-256", "SHA-384", and "SHA-512". As you pointed out to
>> me, these names are also registered in this IANA registry:
>> http://www.iana.org/assignments/hash-function-text-names/hash-function-text-names.xml
>>
>> I suggest we reference FIPS 180-4 instead of FIPS 180-3.
>>
>> Wan-Teh
>
> Sounds good to me.
>
> My concern was over SHA-512/224 and SHA-512/256 (which are truncated
> versions that behave better on 64-bit platforms) and over the
> eventual/impeding SHA-3 family, which will likely define sizes similar
> to the existing SHA-1/SHA-2 constructs.
>
> I've raised ACTION-37 to track this, as well as any concerns people
> have. Assuming no issues, the next copy will have this addressed.

wtc resolved ACTION-37 in r1.21. Not sure why it didn't send mail to
this effect.

Received on Monday, 27 August 2012 23:47:44 UTC