X-Git-Url: https://pd.if.org/git/?p=zpackage;a=blobdiff_plain;f=libtomcrypt%2Fsrc%2Fmac%2Fpmac%2Fpmac_init.c;fp=libtomcrypt%2Fsrc%2Fmac%2Fpmac%2Fpmac_init.c;h=0000000000000000000000000000000000000000;hp=b1bb400d19c26c4534ed34141185398ca6107374;hb=980fccf87eb6c14113e601b2f8135d904a5e70f6;hpb=3a94b002c8fb76df827cb7f1785e4ce313186561

diff --git a/libtomcrypt/src/mac/pmac/pmac_init.c b/libtomcrypt/src/mac/pmac/pmac_init.c
deleted file mode 100644
index b1bb400..0000000
--- a/libtomcrypt/src/mac/pmac/pmac_init.c
+++ /dev/null
@@ -1,148 +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.
- */
-#include "tomcrypt.h"
-
-/**
-   @file pmac_init.c
-   PMAC implementation, initialize state, by Tom St Denis
-*/
-
-#ifdef LTC_PMAC
-
-static const struct {
-    int           len;
-    unsigned char poly_div[MAXBLOCKSIZE],
-                  poly_mul[MAXBLOCKSIZE];
-} polys[] = {
-{
-    8,
-    { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0D },
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1B }
-}, {
-    16,
-    { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 },
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87 }
-}
-};
-
-/**
-   Initialize a PMAC state
-   @param pmac      The PMAC state to initialize
-   @param cipher    The index of the desired cipher
-   @param key       The secret key
-   @param keylen    The length of the secret key (octets)
-   @return CRYPT_OK if successful
-*/
-int pmac_init(pmac_state *pmac, int cipher, const unsigned char *key, unsigned long keylen)
-{
-   int poly, x, y, m, err;
-   unsigned char *L;
-
-   LTC_ARGCHK(pmac  != NULL);
-   LTC_ARGCHK(key   != NULL);
-
-   /* valid cipher? */
-   if ((err = cipher_is_valid(cipher)) != CRYPT_OK) {
-      return err;
-   }
-
-   /* determine which polys to use */
-   pmac->block_len = cipher_descriptor[cipher].block_length;
-   for (poly = 0; poly < (int)(sizeof(polys)/sizeof(polys[0])); poly++) {
-       if (polys[poly].len == pmac->block_len) {
-          break;
-       }
-   }
-   if (poly >= (int)(sizeof(polys)/sizeof(polys[0]))) {
-      return CRYPT_INVALID_ARG;
-    }
-   if (polys[poly].len != pmac->block_len) {
-      return CRYPT_INVALID_ARG;
-   }
-
-#ifdef LTC_FAST
-   if (pmac->block_len % sizeof(LTC_FAST_TYPE)) {
-      return CRYPT_INVALID_ARG;
-   }
-#endif
-
-
-   /* schedule the key */
-   if ((err = cipher_descriptor[cipher].setup(key, keylen, 0, &pmac->key)) != CRYPT_OK) {
-      return err;
-   }
-
-   /* allocate L */
-   L = XMALLOC(pmac->block_len);
-   if (L == NULL) {
-      return CRYPT_MEM;
-   }
-
-   /* find L = E[0] */
-   zeromem(L, pmac->block_len);
-   if ((err = cipher_descriptor[cipher].ecb_encrypt(L, L, &pmac->key)) != CRYPT_OK) {
-      goto error;
-   }
-
-   /* find Ls[i] = L << i for i == 0..31 */
-   XMEMCPY(pmac->Ls[0], L, pmac->block_len);
-   for (x = 1; x < 32; x++) {
-       m = pmac->Ls[x-1][0] >> 7;
-       for (y = 0; y < pmac->block_len-1; y++) {
-           pmac->Ls[x][y] = ((pmac->Ls[x-1][y] << 1) | (pmac->Ls[x-1][y+1] >> 7)) & 255;
-       }
-       pmac->Ls[x][pmac->block_len-1] = (pmac->Ls[x-1][pmac->block_len-1] << 1) & 255;
-
-       if (m == 1) {
-          for (y = 0; y < pmac->block_len; y++) {
-              pmac->Ls[x][y] ^= polys[poly].poly_mul[y];
-          }
-       }
-    }
-
-   /* find Lr = L / x */
-   m = L[pmac->block_len-1] & 1;
-
-   /* shift right */
-   for (x = pmac->block_len - 1; x > 0; x--) {
-      pmac->Lr[x] = ((L[x] >> 1) | (L[x-1] << 7)) & 255;
-   }
-   pmac->Lr[0] = L[0] >> 1;
-
-   if (m == 1) {
-      for (x = 0; x < pmac->block_len; x++) {
-         pmac->Lr[x] ^= polys[poly].poly_div[x];
-      }
-   }
-
-   /* zero buffer, counters, etc... */
-   pmac->block_index = 1;
-   pmac->cipher_idx  = cipher;
-   pmac->buflen      = 0;
-   zeromem(pmac->block,    sizeof(pmac->block));
-   zeromem(pmac->Li,       sizeof(pmac->Li));
-   zeromem(pmac->checksum, sizeof(pmac->checksum));
-   err = CRYPT_OK;
-error:
-#ifdef LTC_CLEAN_STACK
-   zeromem(L, pmac->block_len);
-#endif
-
-   XFREE(L);
-
-   return err;
-}
-
-#endif
-
-/* ref:         $Format:%D$ */
-/* git commit:  $Format:%H$ */
-/* commit time: $Format:%ai$ */