--- /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"
+#include <stdarg.h>
+
+/**
+ @file pmac_memory_multi.c
+ PMAC implementation, process multiple blocks of memory, by Tom St Denis
+*/
+
+#ifdef LTC_PMAC
+
+/**
+ PMAC multiple blocks 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 out [out] Destination for the authentication tag
+ @param outlen [in/out] The max size and resulting size of the authentication tag
+ @param in The data you wish to send through PMAC
+ @param inlen The length of data you wish to send through PMAC (octets)
+ @param ... tuples of (data,len) pairs to PMAC, terminated with a (NULL,x) (x=don't care)
+ @return CRYPT_OK if successful
+*/
+int pmac_memory_multi(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ unsigned char *out, unsigned long *outlen,
+ const unsigned char *in, unsigned long inlen, ...)
+{
+ int err;
+ pmac_state *pmac;
+ va_list args;
+ const unsigned char *curptr;
+ unsigned long curlen;
+
+ 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;
+ }
+ va_start(args, inlen);
+ curptr = in;
+ curlen = inlen;
+ for (;;) {
+ /* process buf */
+ if ((err = pmac_process(pmac, curptr, curlen)) != CRYPT_OK) {
+ goto LBL_ERR;
+ }
+ /* step to next */
+ curptr = va_arg(args, const unsigned char*);
+ if (curptr == NULL) {
+ break;
+ }
+ curlen = va_arg(args, unsigned long);
+ }
+ if ((err = pmac_done(pmac, out, outlen)) != CRYPT_OK) {
+ goto LBL_ERR;
+ }
+LBL_ERR:
+#ifdef LTC_CLEAN_STACK
+ zeromem(pmac, sizeof(pmac_state));
+#endif
+ XFREE(pmac);
+ va_end(args);
+ return err;
+}
+
+#endif
+
+/* ref: $Format:%D$ */
+/* git commit: $Format:%H$ */
+/* commit time: $Format:%ai$ */