Synopsis

struct blkcipher_alg {
  int (* setkey) (struct crypto_tfm *tfm, const u8 *key,unsigned int keylen);
  int (* encrypt) (struct blkcipher_desc *desc,struct scatterlist *dst, struct scatterlist *src,unsigned int nbytes);
  int (* decrypt) (struct blkcipher_desc *desc,struct scatterlist *dst, struct scatterlist *src,unsigned int nbytes);
  const char * geniv;
  unsigned int min_keysize;
  unsigned int max_keysize;
  unsigned int ivsize;
};