view libtomcrypt/src/stream/rc4/rc4_test.c @ 1861:2b3a8026a6ce

Add re-exec for server This allows ASLR to re-randomize the address space for every connection, preventing some vulnerabilities from being exploitable by repeated probing. Overhead (memory and time) is yet to be confirmed. At present this is only enabled on Linux. Other BSD platforms with fexecve() would probably also work though have not been tested.
author Matt Johnston <matt@ucc.asn.au>
date Sun, 30 Jan 2022 10:14:56 +0800
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.
 */

#include "tomcrypt.h"

#ifdef LTC_RC4_STREAM

int rc4_stream_test(void)
{
#ifndef LTC_TEST
   return CRYPT_NOP;
#else
   rc4_state st;
   int err;
   const unsigned char key[] = { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef };
   const unsigned char pt[]  = { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef };
   const unsigned char ct[]  = { 0x75, 0xb7, 0x87, 0x80, 0x99, 0xe0, 0xc5, 0x96 };
   unsigned char buf[10];

   if ((err = rc4_stream_setup(&st, key, sizeof(key))) != CRYPT_OK)    return err;
   if ((err = rc4_stream_crypt(&st, pt, sizeof(pt), buf)) != CRYPT_OK) return err;
   if (compare_testvector(buf, sizeof(ct), ct, sizeof(ct), "RC4", 0))  return CRYPT_FAIL_TESTVECTOR;
   if ((err = rc4_stream_done(&st)) != CRYPT_OK)                       return err;

   return CRYPT_OK;
#endif
}

#endif

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