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1 #ifndef __DESFIRE_H
2 #define __DESFIRE_H
3
4 #include <string.h>
5 #include <stdarg.h>
6 #include "aes.h"
7
8 #define MAX_CRYPTO_BLOCK_SIZE 16
9 /* Mifare DESFire EV1 Application crypto operations */
10 #define APPLICATION_CRYPTO_DES 0x00
11 #define APPLICATION_CRYPTO_3K3DES 0x40
12 #define APPLICATION_CRYPTO_AES 0x80
13
14 #define MAC_LENGTH 4
15 #define CMAC_LENGTH 8
16
17 typedef enum {
18 MCD_SEND,
19 MCD_RECEIVE
20 } MifareCryptoDirection;
21
22 typedef enum {
23 MCO_ENCYPHER,
24 MCO_DECYPHER
25 } MifareCryptoOperation;
26
27 #define MDCM_MASK 0x000F
28
29 #define CMAC_NONE 0
30
31 // Data send to the PICC is used to update the CMAC
32 #define CMAC_COMMAND 0x010
33 // Data received from the PICC is used to update the CMAC
34 #define CMAC_VERIFY 0x020
35
36 // MAC the command (when MDCM_MACED)
37 #define MAC_COMMAND 0x100
38 // The command returns a MAC to verify (when MDCM_MACED)
39 #define MAC_VERIFY 0x200
40
41 #define ENC_COMMAND 0x1000
42 #define NO_CRC 0x2000
43
44 #define MAC_MASK 0x0F0
45 #define CMAC_MACK 0xF00
46
47 /* Communication mode */
48 #define MDCM_PLAIN 0x00
49 #define MDCM_MACED 0x01
50 #define MDCM_ENCIPHERED 0x03
51
52 /* Error code managed by the library */
53 #define CRYPTO_ERROR 0x01
54
55
56 enum DESFIRE_AUTH_SCHEME {
57 AS_LEGACY,
58 AS_NEW
59 };
60
61 enum DESFIRE_CRYPTOALGO {
62 T_DES = 0x00,
63 T_3DES = 0x01,
64 T_3K3DES = 0x02,
65 T_AES = 0x03
66 };
67
68
69 #define DESFIRE_KEY(key) ((struct desfire_key *) key)
70 struct desfire_key {
71 enum DESFIRE_CRYPTOALGO type;
72 uint8_t data[24];
73 // DES_key_schedule ks1;
74 // DES_key_schedule ks2;
75 // DES_key_schedule ks3;
76 AesCtx aes_ks;
77 uint8_t cmac_sk1[24];
78 uint8_t cmac_sk2[24];
79 uint8_t aes_version;
80 };
81 typedef struct desfire_key *desfirekey_t;
82
83 #define DESFIRE(tag) ((struct desfire_tag *) tag)
84 struct desfire_tag {
85 iso14a_card_select_t info;
86 int active;
87 uint8_t last_picc_error;
88 uint8_t last_internal_error;
89 uint8_t last_pcd_error;
90 desfirekey_t session_key;
91 enum DESFIRE_AUTH_SCHEME authentication_scheme;
92 uint8_t authenticated_key_no;
93
94 uint8_t ivect[MAX_CRYPTO_BLOCK_SIZE];
95 uint8_t cmac[16];
96 uint8_t *crypto_buffer;
97 size_t crypto_buffer_size;
98 uint32_t selected_application;
99 };
100 typedef struct desfire_tag *desfiretag_t;
101
102
103 /* File types */
104 enum DESFIRE_FILE_TYPES {
105 MDFT_STANDARD_DATA_FILE = 0x00,
106 MDFT_BACKUP_DATA_FILE = 0x01,
107 MDFT_VALUE_FILE_WITH_BACKUP = 0x02,
108 MDFT_LINEAR_RECORD_FILE_WITH_BACKUP = 0x03,
109 MDFT_CYCLIC_RECORD_FILE_WITH_BACKUP = 0x04
110 };
111
112 enum DESFIRE_STATUS {
113 OPERATION_OK = 0x00,
114 NO_CHANGES = 0x0c,
115 OUT_OF_EEPROM_ERROR = 0x0e,
116 ILLEGAL_COMMAND_CODE = 0x1c,
117 INTEGRITY_ERROR = 0x1e,
118 NO_SUCH_KEY = 0x40,
119 LENGTH_ERROR = 0x7e,
120 PERMISSION_DENIED = 0x9d,
121 PARAMETER_ERROR = 0x9e,
122 APPLICATION_NOT_FOUND = 0xa0,
123 APPL_INTEGRITY_ERROR = 0xa1,
124 AUTHENTICATION_ERROR = 0xae,
125 ADDITIONAL_FRAME = 0xaf,
126 BOUNDARY_ERROR = 0xbe,
127 PICC_INTEGRITY_ERROR = 0xc1,
128 COMMAND_ABORTED = 0xca,
129 PICC_DISABLED_ERROR = 0xcd,
130 COUNT_ERROR = 0xce,
131 DUPLICATE_ERROR = 0xde,
132 EEPROM_ERROR = 0xee,
133 FILE_NOT_FOUND = 0xf0,
134 FILE_INTEGRITY_ERROR = 0xf1
135 };
136
137 enum DESFIRE_CMD {
138 CREATE_APPLICATION = 0xca,
139 DELETE_APPLICATION = 0xda,
140 GET_APPLICATION_IDS = 0x6a,
141 SELECT_APPLICATION = 0x5a,
142 FORMAT_PICC = 0xfc,
143 GET_VERSION = 0x60,
144 READ_DATA = 0xbd,
145 WRITE_DATA = 0x3d,
146 GET_VALUE = 0x6c,
147 CREDIT = 0x0c,
148 DEBIT = 0xdc,
149 LIMITED_CREDIT = 0x1c,
150 WRITE_RECORD = 0x3b,
151 READ_RECORDS = 0xbb,
152 CLEAR_RECORD_FILE = 0xeb,
153 COMMIT_TRANSACTION = 0xc7,
154 ABORT_TRANSACTION = 0xa7,
155 GET_FREE_MEMORY = 0x6e,
156 GET_FILE_IDS = 0x6f,
157 GET_FILE_SETTINGS = 0xf5,
158 CHANGE_FILE_SETTINGS = 0x5f,
159 CREATE_STD_DATA_FILE = 0xcd,
160 CREATE_BACKUP_DATA_FILE = 0xcb,
161 CREATE_VALUE_FILE = 0xcc,
162 CREATE_LINEAR_RECORD_FILE = 0xc1,
163 CREATE_CYCLIC_RECORD_FILE = 0xc0,
164 DELETE_FILE = 0xdf,
165 AUTHENTICATE = 0x0a, // AUTHENTICATE_NATIVE
166 AUTHENTICATE_ISO = 0x1a, // AUTHENTICATE_STANDARD
167 AUTHENTICATE_AES = 0xaa,
168 CHANGE_KEY_SETTINGS = 0x54,
169 GET_KEY_SETTINGS = 0x45,
170 CHANGE_KEY = 0xc4,
171 GET_KEY_VERSION = 0x64,
172 AUTHENTICATION_FRAME = 0xAF
173 };
174
175 #endif
176
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