+++ /dev/null
-/* 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_file.c
- PMAC implementation, process a file, by Tom St Denis
-*/
-
-#ifdef LTC_PMAC
-
-/**
- PMAC a file
- @param cipher The index of the cipher desired
- @param key The secret key
- @param keylen The length of the secret key (octets)
- @param filename The name of the file to send through PMAC
- @param out [out] Destination for the authentication tag
- @param outlen [in/out] Max size and resulting size of the authentication tag
- @return CRYPT_OK if successful, CRYPT_NOP if file support has been disabled
-*/
-int pmac_file(int cipher,
- const unsigned char *key, unsigned long keylen,
- const char *filename,
- unsigned char *out, unsigned long *outlen)
-{
-#ifdef LTC_NO_FILE
- LTC_UNUSED_PARAM(cipher);
- LTC_UNUSED_PARAM(key);
- LTC_UNUSED_PARAM(keylen);
- LTC_UNUSED_PARAM(filename);
- LTC_UNUSED_PARAM(out);
- LTC_UNUSED_PARAM(outlen);
- return CRYPT_NOP;
-#else
- size_t x;
- int err;
- pmac_state pmac;
- FILE *in;
- unsigned char *buf;
-
-
- LTC_ARGCHK(key != NULL);
- LTC_ARGCHK(filename != NULL);
- LTC_ARGCHK(out != NULL);
- LTC_ARGCHK(outlen != NULL);
-
- if ((buf = XMALLOC(LTC_FILE_READ_BUFSIZE)) == NULL) {
- return CRYPT_MEM;
- }
-
- if ((err = pmac_init(&pmac, cipher, key, keylen)) != CRYPT_OK) {
- goto LBL_ERR;
- }
-
- in = fopen(filename, "rb");
- if (in == NULL) {
- err = CRYPT_FILE_NOTFOUND;
- goto LBL_ERR;
- }
-
- do {
- x = fread(buf, 1, LTC_FILE_READ_BUFSIZE, in);
- if ((err = pmac_process(&pmac, buf, (unsigned long)x)) != CRYPT_OK) {
- fclose(in);
- goto LBL_CLEANBUF;
- }
- } while (x == LTC_FILE_READ_BUFSIZE);
-
- if (fclose(in) != 0) {
- err = CRYPT_ERROR;
- goto LBL_CLEANBUF;
- }
-
- err = pmac_done(&pmac, out, outlen);
-
-LBL_CLEANBUF:
- zeromem(buf, LTC_FILE_READ_BUFSIZE);
-LBL_ERR:
-#ifdef LTC_CLEAN_STACK
- zeromem(&pmac, sizeof(pmac_state));
-#endif
- XFREE(buf);
- return err;
-#endif
-}
-
-#endif
-
-/* ref: $Format:%D$ */
-/* git commit: $Format:%H$ */
-/* commit time: $Format:%ai$ */