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Implement "curve448-sha512" kex, from RFC 8731.

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With all the preparation now in place, this is more or less trivial.
We add a new curve setup function in sshecc.c, and an ssh_kex linking
to it; we add the curve parameters to the reference / test code
eccref.py, and use them to generate the list of low-order input values
that should be rejected by the sanity check on the kex output; we add
the standard test vectors from RFC 7748 in cryptsuite.py, and the
low-order values we just generated.
This commit is contained in:
Simon Tatham
2020-02-29 06:00:39 +00:00
parent 75e7ddea02
commit 31e5b621b5
5 changed files with 98 additions and 10 deletions
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ssh.h
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@ -981,6 +981,7 @@ extern const ssh_kexes ssh_diffiehellman_gex;
extern const ssh_kexes ssh_gssk5_sha1_kex;
extern const ssh_kexes ssh_rsa_kex;
extern const ssh_kex ssh_ec_kex_curve25519;
extern const ssh_kex ssh_ec_kex_curve448;
extern const ssh_kex ssh_ec_kex_nistp256;
extern const ssh_kex ssh_ec_kex_nistp384;
extern const ssh_kex ssh_ec_kex_nistp521;