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kex, pki, server, options: Filter algorithms in FIPS mode

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When in FIPS mode, filter the algorithms to enable only the allowed
ones.  If any algorithm is explicitly set through options or
configuration file, they are kept.

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Anderson Toshiyuki Sasaki
2019-05-22 18:33:14 +02:00
committed by Andreas Schneider
parent 56041dc784
commit 54d76098ed
5 changed files with 137 additions and 14 deletions
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include/libssh/kex.h
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@@ -39,11 +39,13 @@ int ssh_set_client_kex(ssh_session session);
int ssh_kex_select_methods(ssh_session session);
int ssh_verify_existing_algo(enum ssh_kex_types_e algo, const char *name);
char *ssh_keep_known_algos(enum ssh_kex_types_e algo, const char *list);
char *ssh_keep_fips_algos(enum ssh_kex_types_e algo, const char *list);
char **ssh_space_tokenize(const char *chain);
int ssh_get_kex1(ssh_session session);
char *ssh_find_matching(const char *in_d, const char *what_d);
const char *ssh_kex_get_supported_method(uint32_t algo);
const char *ssh_kex_get_default_methods(uint32_t algo);
const char *ssh_kex_get_fips_methods(uint32_t algo);
const char *ssh_kex_get_description(uint32_t algo);
char *ssh_client_select_hostkeys(ssh_session session);
int ssh_send_rekex(ssh_session session);