Kosuke Kaizuka cai.0407 at
Sat Aug 24 07:10:09 CEST 2013

On Fri, 23 Aug 2013 19:00:27 -0400, Faramir wrote:
> El 22-08-2013 9:56, Robert J. Hansen escribió:
> ...
>> GnuPG extends this with support for Camellia-128, Camellia-192 and
>> Camellia-256.  I don't know the reasoning for introducing Camellia,
>> but I'm sure there's a solid basis for it.
>   IIRC, somebody said, a long long time ago, that Japan had some
> requirements for using Camellia, so I guess if GnuPG doesn't have it,
> japanese people can't use it without some "you are using an
> unnapproved cipher" or something like that. But I can't even remember
> who said Japan likes Camellia, so maybe that's not the reason.

I think that the situation of Camellia in Japan is similar to that of AES in US
or SEED in North Korea.

Camellia is developed by Nippon Telegraph and Telephone and Mitsubishi Electric
(both are Japanese companies), and included in "Japan e-Government Recommended
Ciphers List" by CRYPTREC (Cryptography Research and Evaluation Committees, Japan).

Of course, Japanese people can use AES and any other ciphers, however, Japan
Government and some Japanese people may prefer Camellia than AES (as I set key

Camellia is also recommended by NESSIE in EU, and supported by TLS/SSL (RFC
4132, 5932, 6367), S/MIME (RFC 3657), IPSec (RFC 4132, 5529), etc.

Kosuke Kaizuka <cai.0407 at>

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