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57 lines
1.6 KiB
57 lines
1.6 KiB
#ifndef HEADER_AES_H
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#define HEADER_AES_H
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#define AES_ENCRYPT 1
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#define AES_DECRYPT 0
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/* Because array size can't be a const in C, the following two are macros.
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Both sizes are in bytes. */
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#define AES_MAXNR 14
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#define AES_BLOCK_SIZE 16
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(_MSC_VER) && !defined(OPENSSL_SYS_WINCE)
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# define SWAP(x) (_lrotl(x, 8) & 0x00ff00ff | _lrotr(x, 8) & 0xff00ff00)
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# define GETU32(p) SWAP(*((u32 *)(p)))
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# define PUTU32(ct, st) { *((u32 *)(ct)) = SWAP((st)); }
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#else
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# define GETU32(pt) (((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ ((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]))
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# define PUTU32(ct, st) { (ct)[0] = (u8)((st) >> 24); (ct)[1] = (u8)((st) >> 16); (ct)[2] = (u8)((st) >> 8); (ct)[3] = (u8)(st); }
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#endif
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typedef unsigned long u32;
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typedef unsigned short u16;
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typedef unsigned char u8;
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#define MAXKC (256/32)
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#define MAXKB (256/8)
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#define MAXNR 14
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/* This controls loop-unrolling in aes_core.c */
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#undef FULL_UNROLL
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/* This should be a hidden type, but EVP requires that the size be known */
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struct aes_key_st {
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unsigned long rd_key[4 *(AES_MAXNR + 1)];
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int rounds;
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};
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typedef struct aes_key_st AES_KEY;
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static int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
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AES_KEY *key);
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static int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
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AES_KEY *key);
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static void AES_encrypt(const unsigned char *in, unsigned char *out,
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const AES_KEY *key);
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static void AES_decrypt(const unsigned char *in, unsigned char *out,
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const AES_KEY *key);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !HEADER_AES_H */
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