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view libtomcrypt/tests/mac_test.c @ 1790:42745af83b7d

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Introduce extra delay before closing unauthenticated sessions To make it harder for attackers, introduce a delay to keep an unauthenticated session open a bit longer, thus blocking a connection slot until after the delay. Without this, while there is a limit on the amount of attempts an attacker can make at the same time (MAX_UNAUTH_PER_IP), the time taken by dropbear to handle one attempt is still short and thus for each of the allowed parallel attempts many attempts can be chained one after the other. The attempt rate is then: "MAX_UNAUTH_PER_IP / <process time of one attempt>". With the delay, this rate becomes: "MAX_UNAUTH_PER_IP / UNAUTH_CLOSE_DELAY".
author Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
date Wed, 15 Feb 2017 13:53:04 +0100
parents 6dba84798cd5
children
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis
 *
 * LibTomCrypt is a library that provides various cryptographic
 * algorithms in a highly modular and flexible manner.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 */
/* test pmac/omac/hmac */
#include <tomcrypt_test.h>

int mac_test(void)
{
#ifdef LTC_HMAC
   DO(hmac_test());
#endif
#ifdef LTC_PMAC
   DO(pmac_test());
#endif
#ifdef LTC_OMAC
   DO(omac_test());
#endif
#ifdef LTC_XCBC
   DO(xcbc_test());
#endif
#ifdef LTC_F9_MODE
   DO(f9_test());
#endif
#ifdef LTC_EAX_MODE
   DO(eax_test());
#endif
#ifdef LTC_OCB_MODE
   DO(ocb_test());
#endif
#ifdef LTC_OCB3_MODE
   DO(ocb3_test());
#endif
#ifdef LTC_CCM_MODE
   DO(ccm_test());
#endif
#ifdef LTC_GCM_MODE
   DO(gcm_test());
#endif
#ifdef LTC_PELICAN
   DO(pelican_test());
#endif
#ifdef LTC_POLY1305
   DO(poly1305_test());
#endif
#ifdef LTC_CHACHA20POLY1305_MODE
   DO(chacha20poly1305_test());
#endif
#ifdef LTC_BLAKE2SMAC
   DO(blake2smac_test());
#endif
#ifdef LTC_BLAKE2BMAC
   DO(blake2bmac_test());
#endif
   return 0;
}

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