Hi Niels,
On 11/28/21 6:03 PM, Niels Möller wrote:
Tianjia Zhang <[email protected]> writes:
You can refer to the ISO specification here:
https://www.iso.org/standard/67116.html
Or PDF version:
https://github.com/alipay/tls13-sm-spec/blob/master/sm-en-pdfs/sm3/GBT.32905-2016.SM3-en.pdf
I see that RFC 8998 refers to
http://www.gmbz.org.cn/upload/2018-07-24/1532401392982079739.pdf, which
looks like the same pdf file. I find it a bit odd that the document
carries no information on author or organization.
There is no author in the document, but the website www.gmbz.org.cn that
publishes this standard is China’s Cryptography Standardization
Technical Committee.
Thank you very much for your reminder, Jia Zhang is not himself, but
another colleague of our team, I will add copyright information in the
next version
The specification does not define the reference implementation of the
algorithm. This series of patches mainly refers to the SM3
implementation in libgcrypt and gnulib.
It looks like the gcrypt implementation is licensed under LGPLv2.1 or
later (see https://github.com/gpg/libgcrypt/blob/master/cipher/sm3.c),
so should be fine to copy into nettle (in contrast to gnulib code, which
appears to be GPLv3, and would need explicit permission from copyright
holder before relicensing). But if it is a derived work of libgcrypt, in
the sense of copyright law, the copyright header needs to acknowledge
that, ie,
Copyright (C) 2017 Jia Zhang
Copyright (C) 2021 Tianjia Zhang <[email protected]>
Or did you write both versions, with Jia being an alternate form of
your name?
Thanks for pointing it out, Jia Zhang is another colleague of our team,
I will add copyright information in the next version.
Best regards,
Tianjia
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