commit files needed for zpm-fetchurl

[zpackage] / libtomcrypt / src / mac / pmac / pmac_memory.c

diff --git a/libtomcrypt/src/mac/pmac/pmac_memory.c b/libtomcrypt/src/mac/pmac/pmac_memory.c
new file mode 100644 (file)
index 0000000..7842781
--- /dev/null
+++ b/libtomcrypt/src/mac/pmac/pmac_memory.c
@@ -0,0 +1,72 @@
+/* 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_memory.c
+   PMAC implementation, process a block of memory, by Tom St Denis
+*/
+
+#ifdef LTC_PMAC
+
+/**
+   PMAC a block of memory
+   @param cipher   The index of the cipher desired
+   @param key      The secret key
+   @param keylen   The length of the secret key (octets)
+   @param in       The data you wish to send through PMAC
+   @param inlen    The length of data you wish to send through PMAC (octets)
+   @param out      [out] Destination for the authentication tag
+   @param outlen   [in/out] The max size and resulting size of the authentication tag
+   @return CRYPT_OK if successful
+*/
+int pmac_memory(int cipher,
+                const unsigned char *key, unsigned long keylen,
+                const unsigned char *in, unsigned long inlen,
+                      unsigned char *out, unsigned long *outlen)
+{
+   int err;
+   pmac_state *pmac;
+
+   LTC_ARGCHK(key    != NULL);
+   LTC_ARGCHK(in    != NULL);
+   LTC_ARGCHK(out    != NULL);
+   LTC_ARGCHK(outlen != NULL);
+
+   /* allocate ram for pmac state */
+   pmac = XMALLOC(sizeof(pmac_state));
+   if (pmac == NULL) {
+      return CRYPT_MEM;
+   }
+
+   if ((err = pmac_init(pmac, cipher, key, keylen)) != CRYPT_OK) {
+      goto LBL_ERR;
+   }
+   if ((err = pmac_process(pmac, in, inlen)) != CRYPT_OK) {
+      goto LBL_ERR;
+   }
+   if ((err = pmac_done(pmac, out, outlen)) != CRYPT_OK) {
+      goto LBL_ERR;
+   }
+
+   err = CRYPT_OK;
+LBL_ERR:
+#ifdef LTC_CLEAN_STACK
+   zeromem(pmac, sizeof(pmac_state));
+#endif
+
+   XFREE(pmac);
+   return err;
+}
+
+#endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */