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Add generic message authentication interface

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Add generic interface for generating and verifying MACs (message
authentication codes). Replace multiple HMAC implementation with
a generic one.
This commit is contained in:
Ondrej Zajicek (work)
2016-10-25 17:04:17 +02:00
parent 7eec398875
commit de2a27e255
16 changed files with 493 additions and 543 deletions
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5
proto/ospf/packet.c
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@@ -11,6 +11,7 @@
#include "ospf.h"
#include "nest/password.h"
#include "lib/md5.h"
#include "lib/mac.h"
#include "lib/socket.h"
void
@@ -109,7 +110,7 @@ ospf_pkt_finalize(struct ospf_iface *ifa, struct ospf_packet *pkt)
char password[OSPF_AUTH_CRYPT_SIZE];
strncpy(password, passwd->password, sizeof(password));
struct md5_context ctx;
struct hash_context ctx;
md5_init(&ctx);
md5_update(&ctx, (char *) pkt, plen);
md5_update(&ctx, password, OSPF_AUTH_CRYPT_SIZE);
@@ -180,7 +181,7 @@ ospf_pkt_checkauth(struct ospf_neighbor *n, struct ospf_iface *ifa, struct ospf_
memcpy(received, tail, OSPF_AUTH_CRYPT_SIZE);
strncpy(tail, pass->password, OSPF_AUTH_CRYPT_SIZE);
struct md5_context ctx;
struct hash_context ctx;
md5_init(&ctx);
md5_update(&ctx, (byte *) pkt, plen + OSPF_AUTH_CRYPT_SIZE);
char *computed = md5_final(&ctx);