[IPP] 5100.11 "job-password-encryption-supported" - what SHA version does 'sha' keyword indicate?

[IPP] 5100.11 "job-password-encryption-supported" - what SHA version does 'sha' keyword indicate?

[IPP] 5100.11 "job-password-encryption-supported" - what SHA version does 'sha' keyword indicate?

Michael Sweet msweet at apple.com
Mon Jun 16 20:56:01 UTC 2014


OK, the consensus at today's concall is that "sha" refers to SHA-1.  We will register the following values for SHA2:

  sha2-224
  sha2-256
  sha2-384
  sha2-512
  sha2-512_256

The latter is the 512-bit SHA-2 hash truncated to 256 bits as used in the upcoming HTTP Digest authentication update.

Once a non-draft US NIST (or other) specification is released, we will also register the following new values for SHA-3 and Shake:

  sha3-224
  sha3-256
  sha3-384
  sha3-512
  sha3-512_256
  shake-128
  shake-256


The IANA registration information for the SHA-2 registrations is:

Attributes (attribute syntax)
  Keyword Attribute Value                       Reference
  -----------------------                       ---------
job-password-encryption (type2 keyword)		[PWG5100.11]
  sha2-224
  sha2-256
  sha2-384
  sha2-512
  sha2-512_256


On Jun 12, 2014, at 4:52 PM, Kennedy, Smith (Wireless Architect) <smith.kennedy at hp.com> wrote:

> Greetings,
> 
> PWG 5100.11 (JPS2) defines the “job-password-encryption-supported” attribute.  One of the keywords defined in JPS2 is ’sha’.  Neither the keyword nor the description is clear as to which SHA generation is being used.  Is this SHA-0 or SHA-1?  Do we need to define additional keywords to bring this up-to-date?
> 
> Smith
> 
> /**
>     Smith Kennedy
>     ATB Wireless Architect - PPS
>     Hewlett-Packard Co.
> */
> 
> 
> 
> _______________________________________________
> ipp mailing list
> ipp at pwg.org
> https://www.pwg.org/mailman/listinfo/ipp

_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair

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