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      1 /*
      2  * AES-based functions
      3  *
      4  * - AES Key Wrap Algorithm (128-bit KEK) (RFC3394)
      5  * - One-Key CBC MAC (OMAC1) hash with AES-128
      6  * - AES-128 CTR mode encryption
      7  * - AES-128 EAX mode encryption/decryption
      8  * - AES-128 CBC
      9  * - AES-GCM
     10  * - AES-CCM
     11  *
     12  * Copyright (c) 2003-2012, Jouni Malinen <j (at) w1.fi>
     13  *
     14  * This software may be distributed under the terms of the BSD license.
     15  * See README for more details.
     16  */
     17 
     18 #ifndef AES_WRAP_H
     19 #define AES_WRAP_H
     20 
     21 int __must_check aes_wrap(const u8 *kek, int n, const u8 *plain, u8 *cipher);
     22 int __must_check aes_unwrap(const u8 *kek, int n, const u8 *cipher, u8 *plain);
     23 int __must_check omac1_aes_128_vector(const u8 *key, size_t num_elem,
     24 				      const u8 *addr[], const size_t *len,
     25 				      u8 *mac);
     26 int __must_check omac1_aes_128(const u8 *key, const u8 *data, size_t data_len,
     27 			       u8 *mac);
     28 int __must_check aes_128_encrypt_block(const u8 *key, const u8 *in, u8 *out);
     29 int __must_check aes_128_ctr_encrypt(const u8 *key, const u8 *nonce,
     30 				     u8 *data, size_t data_len);
     31 int __must_check aes_128_eax_encrypt(const u8 *key,
     32 				     const u8 *nonce, size_t nonce_len,
     33 				     const u8 *hdr, size_t hdr_len,
     34 				     u8 *data, size_t data_len, u8 *tag);
     35 int __must_check aes_128_eax_decrypt(const u8 *key,
     36 				     const u8 *nonce, size_t nonce_len,
     37 				     const u8 *hdr, size_t hdr_len,
     38 				     u8 *data, size_t data_len, const u8 *tag);
     39 int __must_check aes_128_cbc_encrypt(const u8 *key, const u8 *iv, u8 *data,
     40 				     size_t data_len);
     41 int __must_check aes_128_cbc_decrypt(const u8 *key, const u8 *iv, u8 *data,
     42 				     size_t data_len);
     43 int __must_check aes_gcm_ae(const u8 *key, size_t key_len,
     44 			    const u8 *iv, size_t iv_len,
     45 			    const u8 *plain, size_t plain_len,
     46 			    const u8 *aad, size_t aad_len,
     47 			    u8 *crypt, u8 *tag);
     48 int __must_check aes_gcm_ad(const u8 *key, size_t key_len,
     49 			    const u8 *iv, size_t iv_len,
     50 			    const u8 *crypt, size_t crypt_len,
     51 			    const u8 *aad, size_t aad_len, const u8 *tag,
     52 			    u8 *plain);
     53 int __must_check aes_gmac(const u8 *key, size_t key_len,
     54 			  const u8 *iv, size_t iv_len,
     55 			  const u8 *aad, size_t aad_len, u8 *tag);
     56 int __must_check aes_ccm_ae(const u8 *key, size_t key_len, const u8 *nonce,
     57 			    size_t M, const u8 *plain, size_t plain_len,
     58 			    const u8 *aad, size_t aad_len, u8 *crypt, u8 *auth);
     59 int __must_check aes_ccm_ad(const u8 *key, size_t key_len, const u8 *nonce,
     60 			    size_t M, const u8 *crypt, size_t crypt_len,
     61 			    const u8 *aad, size_t aad_len, const u8 *auth,
     62 			    u8 *plain);
     63 
     64 #endif /* AES_WRAP_H */
     65