view libtomcrypt/src/misc/crypt/crypt_fsa.c @ 1855:35d504d59c05

Implement server-side support for sk-ecdsa U2F-backed keys (#142) * Implement server-side support for sk-ecdsa U2F-backed keys * Fix out-of-bounds read on normal ecdsa-sha2-[identifier] keys * Fix one more potential out-of-bounds read * Check if nistp256 curve is used in sk-ecdsa-sha2- key It's the only allowed curve per PROTOCOL.u2f specification * Implement server-side support for sk-ed25519 FIDO2-backed keys * Keys with type sk-* make no sense as host keys, so they should be disabled * fix typo * Make sk-ecdsa call buf_ecdsa_verify This reduces code duplication, the SK code just handles the different message format. * Reduce sk specific code The application id can be stored in signkey, then we don't need to call sk-specific functions from svr-authpubkey * Remove debugging output, which causes compilation errors with DEBUG_TRACE disabled * Proper cleanup of sk_app Co-authored-by: Matt Johnston <[email protected]>
author egor-duda <egor-duda@users.noreply.github.com>
date Sat, 22 Jan 2022 16:53:04 +0300
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"
#include <stdarg.h>

/**
  @file crypt_fsa.c
  LibTomCrypt FULL SPEED AHEAD!, Tom St Denis
*/

/* format is ltc_mp, cipher_desc, [cipher_desc], NULL, hash_desc, [hash_desc], NULL, prng_desc, [prng_desc], NULL */
int crypt_fsa(void *mp, ...)
{
   va_list  args;
   void     *p;

   va_start(args, mp);
   if (mp != NULL) {
      XMEMCPY(&ltc_mp, mp, sizeof(ltc_mp));
   }

   while ((p = va_arg(args, void*)) != NULL) {
      if (register_cipher(p) == -1) {
         va_end(args);
         return CRYPT_INVALID_CIPHER;
      }
   }

   while ((p = va_arg(args, void*)) != NULL) {
      if (register_hash(p) == -1) {
         va_end(args);
         return CRYPT_INVALID_HASH;
      }
   }

   while ((p = va_arg(args, void*)) != NULL) {
      if (register_prng(p) == -1) {
         va_end(args);
         return CRYPT_INVALID_PRNG;
      }
   }

   va_end(args);
   return CRYPT_OK;
}


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