例如我有这样的R-APDU
uchar rApdu[] = {0x6F, 0x35 ,0x84 ,0x08 ,0x45 ,0x4F ,0x50 ,
0x43 ,0x43 ,0x41 ,0x52 ,0x44 ,0xA5 ,0x29 ,0x50 ,0x06 ,0x55 ,0x5A ,0x4B ,0x41 ,0x52 ,0x54 ,0x5F,
0x2D, 0x06 ,0x75 ,0x7A ,0x72 ,0x75 ,0x65 ,0x6E ,0x87 ,0x01 ,0x01 ,0x9F ,0x11 ,0x01 ,0x01 ,0x9F,
0x12 ,0x06 ,0x55 ,0x5A ,0x4B ,0x41 ,0x52 ,0x54 ,0xBF ,0x0C ,0x05 ,0x9F ,0x4D ,0x02 ,0x0B ,0x0A};
我想用C来解析这个TLV，就像在这个页面上一样：parsed TLV
它应该解析所有标记及其值并接受结构。
我试着去分析，这就是我得到的：
#include <stdio.h>
#include <stdlib.h>
#define uchar unsigned char
#define uint unsigned int
#define ushort unsigned short
#define k6f 0x6F
typedef enum{
false,
true
}bool;
struct TAG{
uchar *data;
uint len;
};
struct TLVdata{
struct TAG s6F;
struct TAG s84;
struct TAG sA5;
struct TAG s50;
struct TAG s5F2D;
struct TAG s87;
struct TAG s9F11;
struct TAG s9F12;
struct TAG sBF0C;
struct TAG s9F4D;
};
static int readTLV(uchar rApdu[]);
int main(void){
uchar rApdu[] = {0x6F, 0x35 ,0x84 ,0x08 ,0x45 ,0x4F ,0x50 ,
0x43 ,0x43 ,0x41 ,0x52 ,0x44 ,0xA5 ,0x29 ,0x50 ,0x06 ,0x55 ,0x5A ,0x4B ,0x41 ,0x52 ,0x54 ,0x5F,
0x2D, 0x06 ,0x75 ,0x7A ,0x72 ,0x75 ,0x65 ,0x6E ,0x87 ,0x01 ,0x01 ,0x9F ,0x11 ,0x01 ,0x01 ,0x9F,
0x12 ,0x06 ,0x55 ,0x5A ,0x4B ,0x41 ,0x52 ,0x54 ,0xBF ,0x0C ,0x05 ,0x9F ,0x4D ,0x02 ,0x0B ,0x0A};
if (readTLV(rApdu) == 0)
printf("ok!\n");
system("PAUSE");
return false;
}
static int readTLV(uchar rApdu[]){
uint i, j, aLen, tLen, tlvIndex;
struct TLVdata newtlv;
aLen = sizeof(rApdu);
tlvIndex = 0;
switch(rApdu[tlvIndex]){
case k6f:
tLen = (int)rApdu[++tlvIndex];
for(i=0; i <= tLen; i++, ++tlvIndex){
if(rApdu[tlvIndex] == 0x84){
newtlv.s84.len = (int)rApdu[++tlvIndex];
++tlvIndex;
newtlv.s84.data = (char*)malloc(10*sizeof(char));
for(j=0; j < newtlv.s84.len; j++, ++tlvIndex){
newtlv.s84.data[j] = rApdu[tlvIndex];
}
newtlv.s84.data[j] = '\0';
printf("%s\n", newtlv.s84.data);
}
}
break;
}
return 0;
}
我找到一个分析器只有它是用Java写的，或者不知道用什么语言写的有人能帮忙吗？
apduparser
最佳答案
要实现EMV-TLV数据解析，您需要遵循ISO 8825-1ber-TLV编码规则，也称为ASN.1basic encoding rules（BER）。
简而言之，要提取正确的BER-TLV值，需要分析标签位和长度位以获得正确的大小。
那么您的样本缓冲区将如下所示：
tag: "6F"
len: "35" # // 53
val:#"8408454F504343415244A5295006555A4B4152545F2D06757A7275656E87..0B0A"
- x84:#"8408454F504343415244"
- tag: "84"
- len: "08" # // 8
- val: "454F504343415244"
- xA5:#"A5295006555A4B4152545F2D06757A7275656E8701019F1101019F120655..0B0A"
- tag: "A5"
- len: "29" # // 41
- val:#"5006555A4B4152545F2D06757A7275656E8701019F1101019F1206555A4B..0B0A"
- x50:#"5006555A4B415254"
- tag: "50"
- len: "06" # // 6
- val: "555A4B415254"
- x5F2D:#"5F2D06757A7275656E"
- tag: "5F2D"
- len: "06" # // 6
- val: "757A7275656E"
- x87:#"870101"
- tag: "87"
- len: "01" # // 1
- val: "01"
- x9F11:#"9F110101"
- tag: "9F11"
- len: "01" # // 1
- val: "01"
- x9F12:#"9F1206555A4B415254"
- tag: "9F12"
- len: "06" # // 6
- val: "555A4B415254"
- xBF0C:#"BF0C059F4D020B0A"
- tag: "BF0C"
- len: "05" # // 5
- val:#"9F4D020B0A"
- x9F4D:#"9F4D020B0A"
- tag: "9F4D"
- len: "02" # // 2
- val: "0B0A"
或者，如果您希望应用EMV分析：
# Cheef's parser.
# lib : "/lib/EMV/" - EMV - Integrated Circuit Card Specifications for Payment Systems
# node : "TLVs"
TLVs:#"6F358408454F504343415244A5295006555A4B4152545F2D06757A727565..0B0A" # EMV, Tag + Length + Value (TLV) series
- x6F:#"6F358408454F504343415244A5295006555A4B4152545F2D06757A727565..0B0A" # ISO 7816, Template, File Control Parameters and File Management Data (FCI)
- tag: "6F"
- len: "35" # // 53
- val:#"8408454F504343415244A5295006555A4B4152545F2D06757A7275656E87..0B0A"
- x84:#"8408454F504343415244" # EMV, Dedicated File (DF) Name
- tag: "84"
- len: "08" # // 8
- val:#"454F504343415244" # Dedicated File (DF) Name.
- RID: "454F504343" # Registered Application Provider Identifier (RID)
- PIX: "415244" # Proprietary Application Identifier Extension (PIX)
- xA5:#"A5295006555A4B4152545F2D06757A7275656E8701019F1101019F120655..0B0A" # EMV, Template, FCI A5
- tag: "A5"
- len: "29" # // 41
- val:#"5006555A4B4152545F2D06757A7275656E8701019F1101019F1206555A4B..0B0A"
- x50:#"5006555A4B415254" # ISO 7816, Application Label
- tag: "50"
- len: "06" # // 6
- val: "555A4B415254" # Application Label. // UZKART
- x5F2D:#"5F2D06757A7275656E" # ISO 7816, Language Preference
- tag: "5F2D"
- len: "06" # // 6
- val:#"757A7275656E" # Language Preference. // uzruen
- A21: "uz" # ISO 639, Language Code (a2) // Uzbek
- A22: "ru" # ISO 639, Language Code (a2) // Russian
- A23: "en" # ISO 639, Language Code (a2) // English
- x87:#"870101" # EMV, Application Priority Indicator
- tag: "87"
- len: "01" # // 1
- val:#"01" # Application Priority Indicator.
- S01: "0" # // Application may be selected without confirmation of cardholder
- S02: "1" # // No priority assigned
- x9F11:#"9F110101" # EMV, Issuer Code Table Index
- tag: "9F11"
- len: "01" # // 1
- val: "01" # Issuer Code Table Index. // ISO 8859, Part 1
- x9F12:#"9F1206555A4B415254" # EMV, Application Preferred Name
- tag: "9F12"
- len: "06" # // 6
- val: "555A4B415254" # Name, Application Preferred. // UZKART
- xBF0C:#"BF0C059F4D020B0A" # EMV, FCI Issuer Discretionary Data
- tag: "BF0C"
- len: "05" # // 5
- val:#"9F4D020B0A" # FCI Issuer Discretionary Data.
- x9F4D:#"9F4D020B0A" # EMV, Log Entry
- tag: "9F4D"
- len: "02" # // 2
- val:#"0B0A" # Log Entry.
- B01: "0B" # SFI containing the cyclic transaction log file (binary) // 11
- B02: "0A" # Maximum number of records in the transaction log file (binary) // 10
关于c - 如何在C中创建APDU(TLV)解析器，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/31965261/