Hi!
Now that an official SHA3 specs has been published I would like to see
algorithm ids assigned. Although it is some time until we can publish
rfc-4880bis, it would be useful to agree on the algorithm ids now.
This would be helpful for experimental implementations. Thus what about
this new table with the SHA2 drop in replacements:
ID Algorithm Text Name
-- --------- ---------
1 - MD5 [HAC] "MD5"
2 - SHA-1 [FIPS180] "SHA1"
3 - RIPE-MD/160 [HAC] "RIPEMD160"
4 - Reserved
5 - Reserved
6 - Reserved
7 - Reserved
8 - SHA256 [FIPS180] "SHA256"
9 - SHA384 [FIPS180] "SHA384"
10 - SHA512 [FIPS180] "SHA512"
11 - SHA224 [FIPS180] "SHA224"
12 - SHA3-224 [FIPS202] "SHA3-224"
13 - SHA3-256 [FIPS202] "SHA3-256"
14 - SHA3-384 [FIPS202] "SHA3-384"
15 - SHA3-512 [FIPS202] "SHA3-512"
100 to 110 - Private/Experimental algorithm
Note that I ordered SHA3-224 first; when we did SHA2 we forgot about 224
and thus it ended up out of order.
I am not sure about the text name. Is a dash okay (cf. armor header)?
The OIDS are:
The hexadecimal representations for the
currently defined hash algorithms are as follows:
[...]
- SHA3-224: 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x07
- SHA3-256: 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x08
- SHA3-384: 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x09
- SHA3-512: 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x0a
The ASN.1 Object Identifiers (OIDs) are as follows:
[...]
- SHA3-224: 2.16.840.1.101.3.4.2.7
- SHA3-256: 2.16.840.1.101.3.4.2.8
- SHA3-384: 2.16.840.1.101.3.4.2.9
- SHA3-512: 2.16.840.1.101.3.4.2.10
The full hash prefixes for these are as follows:
[...]
SHA3-224: 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x07, 0x05,
0x00, 0x04, 0x40
SHA3-256: 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x07, 0x05,
0x00, 0x04, 0x40
SHA3-384: 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x07, 0x05,
0x00, 0x04, 0x40
SHA3-512: 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x07, 0x05,
0x00, 0x04, 0x40
Shalom-Salam,
Werner
--
Die Gedanken sind frei. Ausnahmen regelt ein Bundesgesetz.
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