xref: /openbmc/qemu/include/crypto/aes.h (revision b45c03f5)
1 #ifndef QEMU_AES_H
2 #define QEMU_AES_H
3 
4 #define AES_MAXNR 14
5 #define AES_BLOCK_SIZE 16
6 
7 struct aes_key_st {
8     uint32_t rd_key[4 *(AES_MAXNR + 1)];
9     int rounds;
10 };
11 typedef struct aes_key_st AES_KEY;
12 
13 /* FreeBSD has its own AES_set_decrypt_key in -lcrypto, avoid conflicts */
14 #ifdef __FreeBSD__
15 #define AES_set_encrypt_key QEMU_AES_set_encrypt_key
16 #define AES_set_decrypt_key QEMU_AES_set_decrypt_key
17 #define AES_encrypt QEMU_AES_encrypt
18 #define AES_decrypt QEMU_AES_decrypt
19 #define AES_cbc_encrypt QEMU_AES_cbc_encrypt
20 #endif
21 
22 int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
23 	AES_KEY *key);
24 int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
25 	AES_KEY *key);
26 
27 void AES_encrypt(const unsigned char *in, unsigned char *out,
28 	const AES_KEY *key);
29 void AES_decrypt(const unsigned char *in, unsigned char *out,
30 	const AES_KEY *key);
31 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
32 		     const unsigned long length, const AES_KEY *key,
33 		     unsigned char *ivec, const int enc);
34 
35 extern const uint8_t AES_sbox[256];
36 extern const uint8_t AES_isbox[256];
37 
38 /* AES ShiftRows and InvShiftRows */
39 extern const uint8_t AES_shifts[16];
40 extern const uint8_t AES_ishifts[16];
41 
42 /* AES InvMixColumns */
43 /* AES_imc[x][0] = [x].[0e, 09, 0d, 0b]; */
44 /* AES_imc[x][1] = [x].[0b, 0e, 09, 0d]; */
45 /* AES_imc[x][2] = [x].[0d, 0b, 0e, 09]; */
46 /* AES_imc[x][3] = [x].[09, 0d, 0b, 0e]; */
47 extern const uint32_t AES_imc[256][4];
48 
49 /*
50 AES_Te0[x] = S [x].[02, 01, 01, 03];
51 AES_Te1[x] = S [x].[03, 02, 01, 01];
52 AES_Te2[x] = S [x].[01, 03, 02, 01];
53 AES_Te3[x] = S [x].[01, 01, 03, 02];
54 AES_Te4[x] = S [x].[01, 01, 01, 01];
55 
56 AES_Td0[x] = Si[x].[0e, 09, 0d, 0b];
57 AES_Td1[x] = Si[x].[0b, 0e, 09, 0d];
58 AES_Td2[x] = Si[x].[0d, 0b, 0e, 09];
59 AES_Td3[x] = Si[x].[09, 0d, 0b, 0e];
60 AES_Td4[x] = Si[x].[01, 01, 01, 01];
61 */
62 
63 extern const uint32_t AES_Te0[256], AES_Te1[256], AES_Te2[256],
64                       AES_Te3[256], AES_Te4[256];
65 extern const uint32_t AES_Td0[256], AES_Td1[256], AES_Td2[256],
66                       AES_Td3[256], AES_Td4[256];
67 
68 #endif
69