scrypt-1.2.1/libcperciva/crypto/crypto_aes.h

   1 #ifndef _CRYPTO_AES_H_
   2 #define _CRYPTO_AES_H_
   3
   4 #include <stddef.h>
   5 #include <stdint.h>
   6
   7 /* Opaque structure. */
   8 struct crypto_aes_key;
   9
  10 /**
  11  * crypto_aes_key_expand(key, len):
  12  * Expand the ${len}-byte AES key ${key} into a structure which can be passed
  13  * to crypto_aes_encrypt_block.  The length must be 16 or 32.
  14  */
  15 struct crypto_aes_key * crypto_aes_key_expand(const uint8_t *, size_t);
  16
  17 /**
  18  * crypto_aes_encrypt_block(in, out, key):
  19  * Using the expanded AES key ${key}, encrypt the block ${in} and write the
  20  * resulting ciphertext to ${out}.
  21  */
  22 void crypto_aes_encrypt_block(const uint8_t *, uint8_t *,
  23     const struct crypto_aes_key *);
  24
  25 /**
  26  * crypto_aes_key_free(key):
  27  * Free the expanded AES key ${key}.
  28  */
  29 void crypto_aes_key_free(struct crypto_aes_key *);
  30
  31 #endif /* !_CRYPTO_AES_H_ */