text: /* 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.
   *
   * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
   */
  #include "tomcrypt.h"
  
  /**
     @file f8_setiv.c
     F8 implementation, set IV, Tom St Denis
  */
  
  #ifdef LTC_F8_MODE
  
  /**
     Set an initial vector
     @param IV   The initial vector
     @param len  The length of the vector (in octets)
     @param f8   The F8 state
     @return CRYPT_OK if successful
  */
  int f8_setiv(const unsigned char *IV, unsigned long len, symmetric_F8 *f8)
  {
     int err;
  
     LTC_ARGCHK(IV != NULL);
     LTC_ARGCHK(f8 != NULL);
  
     if ((err = cipher_is_valid(f8->cipher)) != CRYPT_OK) {
         return err;
     }
  
     if (len != (unsigned long)f8->blocklen) {
        return CRYPT_INVALID_ARG;
     }
  
     /* force next block */
     f8->padlen = 0;
     return cipher_descriptor[f8->cipher].ecb_encrypt(IV, f8->IV, &f8->key);
  }
  
  #endif 
  
  
  /* $Source$ */
  /* $Revision$ */
  /* $Date$ */
  