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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_ */ |