projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| f0706e82 JB |
1 | /* |
| 2 | * Copyright 2003-2004, Instant802 Networks, Inc. | |
| 3 | * Copyright 2006, Devicescape Software, Inc. | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License version 2 as | |
| 7 | * published by the Free Software Foundation. | |
| 8 | */ | |
| 9 | ||
| 10 | #ifndef AES_CCM_H | |
| 11 | #define AES_CCM_H | |
| 12 | ||
| 4133da73 | 13 | #include "aead_api.h" |
| f0706e82 | 14 | |
| f4a067f9 AB |
15 | #define CCM_AAD_LEN 32 |
| 16 | ||
| 4133da73 XG |
17 | static inline struct crypto_aead * |
| 18 | ieee80211_aes_key_setup_encrypt(const u8 key[], size_t key_len, size_t mic_len) | |
| 19 | { | |
| 20 | return aead_key_setup_encrypt("ccm(aes)", key, key_len, mic_len); | |
| 21 | } | |
| 22 | ||
| 23 | static inline int | |
| 24 | ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, | |
| 25 | u8 *b_0, u8 *aad, u8 *data, | |
| 26 | size_t data_len, u8 *mic) | |
| 27 | { | |
| 28 | return aead_encrypt(tfm, b_0, aad + 2, | |
| 29 | be16_to_cpup((__be16 *)aad), | |
| 30 | data, data_len, mic); | |
| 31 | } | |
| 32 | ||
| 33 | static inline int | |
| 34 | ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, | |
| 35 | u8 *b_0, u8 *aad, u8 *data, | |
| 36 | size_t data_len, u8 *mic) | |
| 37 | { | |
| 38 | return aead_decrypt(tfm, b_0, aad + 2, | |
| 39 | be16_to_cpup((__be16 *)aad), | |
| 40 | data, data_len, mic); | |
| 41 | } | |
| 42 | ||
| 43 | static inline void ieee80211_aes_key_free(struct crypto_aead *tfm) | |
| 44 | { | |
| 45 | return aead_key_free(tfm); | |
| 46 | } | |
| f0706e82 JB |
47 | |
| 48 | #endif /* AES_CCM_H */ |