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Add support for HMAC-SHA512.

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I saw a post on comp.security.ssh just now where someone had
encountered an SSH server that would _only_ speak that, which makes it
worth bothering to implement.

The totally obvious implementation works, and passes the test cases
from RFC 6234.
This commit is contained in:
Simon Tatham
2023-04-21 20:17:43 +01:00
parent d67c13eeb8
commit b77e985513
6 changed files with 44 additions and 8 deletions
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3
ssh/transport2.c
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@ -20,7 +20,8 @@ const struct ssh_signkey_with_user_pref_id ssh2_hostkey_algs[] = {
};
const static ssh2_macalg *const macs[] = {
&ssh_hmac_sha256, &ssh_hmac_sha1, &ssh_hmac_sha1_96, &ssh_hmac_md5
&ssh_hmac_sha512, &ssh_hmac_sha256,
&ssh_hmac_sha1, &ssh_hmac_sha1_96, &ssh_hmac_md5
};
const static ssh2_macalg *const buggymacs[] = {
&ssh_hmac_sha1_buggy, &ssh_hmac_sha1_96_buggy, &ssh_hmac_md5