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Add warnings for Kerberos GSS algorithms deprecated in RFCs 6649 and 8429.

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All of these algorithms are explicitly marked SHOULD NOT in one of these
RFCs.

Specifically, RFC 6649 deprecates all algorithms using DES as well as
the "export-friendly" variant of RC4.  RFC 8429 deprecates Triple DES
and the remaining RC4 algorithms.

Reviewed by:	cem
MFC after:	1 month
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D20343
This commit is contained in:
John Baldwin 2019-06-10 19:22:36 +00:00
parent 0b96ca3310
commit db4709c579
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=348875
3 changed files with 12 additions and 0 deletions
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4
sys/kgssapi/krb5/kcrypto_arcfour.c
View file

@ -46,8 +46,12 @@ __FBSDID("$FreeBSD$");
static void
arcfour_init(struct krb5_key_state *ks)
{
static struct timeval lastwarn;
static struct timeval warninterval = { .tv_sec = 3600, .tv_usec = 0 };
ks->ks_priv = NULL;
if (ratecheck(&lastwarn, &warninterval))
gone_in(13, "RC4 cipher for Kerberos GSS");
}
static void

4
sys/kgssapi/krb5/kcrypto_des.c
View file

@ -53,11 +53,15 @@ struct des1_state {
static void
des1_init(struct krb5_key_state *ks)
{
static struct timeval lastwarn;
static struct timeval warninterval = { .tv_sec = 3600, .tv_usec = 0 };
struct des1_state *ds;
ds = malloc(sizeof(struct des1_state), M_GSSAPI, M_WAITOK|M_ZERO);
mtx_init(&ds->ds_lock, "gss des lock", NULL, MTX_DEF);
ks->ks_priv = ds;
if (ratecheck(&lastwarn, &warninterval))
gone_in(13, "DES cipher for Kerberos GSS");
}
static void

4
sys/kgssapi/krb5/kcrypto_des3.c
View file

@ -54,11 +54,15 @@ struct des3_state {
static void
des3_init(struct krb5_key_state *ks)
{
static struct timeval lastwarn;
static struct timeval warninterval = { .tv_sec = 3600, .tv_usec = 0 };
struct des3_state *ds;
ds = malloc(sizeof(struct des3_state), M_GSSAPI, M_WAITOK|M_ZERO);
mtx_init(&ds->ds_lock, "gss des3 lock", NULL, MTX_DEF);
ks->ks_priv = ds;
if (ratecheck(&lastwarn, &warninterval))
gone_in(13, "DES3 cipher for Kerberos GSS");
}
static void