]> git.zerfleddert.de Git - proxmark3-svn/blob - common/protocols.c
Optional decryption of communication using keystream
[proxmark3-svn] / common / protocols.c
1 #include <stdio.h>
2 #include <strings.h>
3 #include <string.h>
4 #include <stdint.h>
5 #include <stdarg.h>
6 #include "protocols.h"
7 #ifndef ON_DEVICE
8 #include "ui.h"
9 #define prnt PrintAndLog
10 #endif
11
12
13
14 typedef struct {
15 uint8_t app_limit;
16 uint8_t otp[2];
17 uint8_t block_writelock;
18 uint8_t chip_config;
19 uint8_t mem_config;
20 uint8_t eas;
21 uint8_t fuses;
22 }picopass_conf_block;
23
24
25 typedef struct {
26 uint8_t csn[8];
27 picopass_conf_block conf;
28 uint8_t epurse[8];
29 uint8_t key_d[8];
30 uint8_t key_c[8];
31 uint8_t app_issuer_area[8];
32
33 }picopass_hdr;
34
35
36 //#define prnt printf
37 /*void prnt(char *fmt,...)
38 {
39 va_list argptr;
40 va_start(argptr, fmt);
41 vprintf(fmt, argptr);
42 printf(" "); // cleaning prompt
43 va_end(argptr);
44 printf("\n");
45 }
46 */
47 uint8_t isset(uint8_t val, uint8_t mask)
48 {
49 return (val & mask);
50 }
51
52 uint8_t notset(uint8_t val, uint8_t mask){
53 return !(val & mask);
54 }
55
56 void fuse_config(const picopass_hdr *hdr)
57 {
58 uint8_t fuses = hdr->conf.fuses;
59
60 if (isset(fuses,FUSE_FPERS))prnt(" Mode: Personalization [Programmable]");
61 else prnt(" Mode: Application [Locked]");
62
63 if (isset(fuses, FUSE_CODING1))
64 prnt(" Coding: RFU");
65 else
66 {
67 if( isset( fuses , FUSE_CODING0)) prnt(" Coding: ISO 14443-2 B/ISO 15693");
68 else prnt(" Coding: ISO 14443B only");
69 }
70 if( isset (fuses,FUSE_CRYPT1 | FUSE_CRYPT0 )) prnt(" Crypt: Secured page, keys not locked");
71 if( isset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt(" Crypt: Secured page, keys not locked");
72 if( notset (fuses,FUSE_CRYPT1) && isset( fuses, FUSE_CRYPT0 )) prnt(" Crypt: Non secured page");
73 if( notset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt(" Crypt: No auth possible. Read only if RA is enabled");
74
75 if( isset( fuses, FUSE_RA)) prnt(" RA: Read access enabled");
76 else prnt(" RA: Read access not enabled");
77 }
78 void mem_config(const picopass_hdr *hdr)
79 {
80 uint8_t mem = hdr->conf.mem_config;
81 if( isset (mem, 0x80)) prnt(" Mem: 16KBits (255 * 8 bytes)");
82 else prnt(" Mem: 2 KBits ( 32 * 8 bytes)");
83
84 }
85 void applimit_config(const picopass_hdr *hdr)
86 {
87 uint8_t applimit = hdr->conf.app_limit;
88 prnt(" AA1: blocks 6-%d", applimit);
89 prnt(" AA2: blocks %d-", (applimit+1));
90 }
91 void print_picopass_info(const picopass_hdr *hdr)
92 {
93 fuse_config(hdr);
94 mem_config(hdr);
95 applimit_config(hdr);
96 }
97 void printIclassDumpInfo(uint8_t* iclass_dump)
98 {
99 // picopass_hdr hdr;
100 // memcpy(&hdr, iclass_dump, sizeof(picopass_hdr));
101 print_picopass_info((picopass_hdr *) iclass_dump);
102 }
103
104 /*
105 void test()
106 {
107 picopass_hdr hdr = {0x27,0xaf,0x48,0x01,0xf9,0xff,0x12,0xe0,0x12,0xff,0xff,0xff,0x7f,0x1f,0xff,0x3c};
108 prnt("Picopass configuration:");
109 print_picopass_info(&hdr);
110 }
111 int main(int argc, char *argv[])
112 {
113 test();
114 return 0;
115 }
116 */
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