X-Git-Url: https://pd.if.org/git/?p=zpackage;a=blobdiff_plain;f=libtomcrypt%2Fsrc%2Fencauth%2Feax%2Feax_done.c;fp=libtomcrypt%2Fsrc%2Fencauth%2Feax%2Feax_done.c;h=0000000000000000000000000000000000000000;hp=b00bfe08441c450c198b03e03ef2ede9c149f9bd;hb=7955b22e032857bed284c22c5303c0a289b4bd71;hpb=094fa8c1bc2e27a560833c6a829b1d9b60de7034

diff --git a/libtomcrypt/src/encauth/eax/eax_done.c b/libtomcrypt/src/encauth/eax/eax_done.c
deleted file mode 100644
index b00bfe0..0000000
--- a/libtomcrypt/src/encauth/eax/eax_done.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/* 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.
- */
-
-/**
-   @file eax_done.c
-   EAX implementation, terminate session, by Tom St Denis
-*/
-#include "tomcrypt.h"
-
-#ifdef LTC_EAX_MODE
-
-/**
-   Terminate an EAX session and get the tag.
-   @param eax       The EAX state
-   @param tag       [out] The destination of the authentication tag
-   @param taglen    [in/out] The max length and resulting length of the authentication tag
-   @return CRYPT_OK if successful
-*/
-int eax_done(eax_state *eax, unsigned char *tag, unsigned long *taglen)
-{
-   int           err;
-   unsigned char *headermac, *ctmac;
-   unsigned long x, len;
-
-   LTC_ARGCHK(eax    != NULL);
-   LTC_ARGCHK(tag    != NULL);
-   LTC_ARGCHK(taglen != NULL);
-
-   /* allocate ram */
-   headermac = XMALLOC(MAXBLOCKSIZE);
-   ctmac     = XMALLOC(MAXBLOCKSIZE);
-
-   if (headermac == NULL || ctmac == NULL) {
-      if (headermac != NULL) {
-         XFREE(headermac);
-      }
-      if (ctmac != NULL) {
-         XFREE(ctmac);
-      }
-      return CRYPT_MEM;
-   }
-
-   /* finish ctomac */
-   len = MAXBLOCKSIZE;
-   if ((err = omac_done(&eax->ctomac, ctmac, &len)) != CRYPT_OK) {
-      goto LBL_ERR;
-   }
-
-   /* finish headeromac */
-
-   /* note we specifically don't reset len so the two lens are minimal */
-
-   if ((err = omac_done(&eax->headeromac, headermac, &len)) != CRYPT_OK) {
-      goto LBL_ERR;
-   }
-
-   /* terminate the CTR chain */
-   if ((err = ctr_done(&eax->ctr)) != CRYPT_OK) {
-      goto LBL_ERR;
-   }
-
-   /* compute N xor H xor C */
-   for (x = 0; x < len && x < *taglen; x++) {
-       tag[x] = eax->N[x] ^ headermac[x] ^ ctmac[x];
-   }
-   *taglen = x;
-
-   err = CRYPT_OK;
-LBL_ERR:
-#ifdef LTC_CLEAN_STACK
-   zeromem(ctmac,     MAXBLOCKSIZE);
-   zeromem(headermac, MAXBLOCKSIZE);
-   zeromem(eax,       sizeof(*eax));
-#endif
-
-   XFREE(ctmac);
-   XFREE(headermac);
-
-   return err;
-}
-
-#endif
-
-/* ref:         $Format:%D$ */
-/* git commit:  $Format:%H$ */
-/* commit time: $Format:%ai$ */