我有一个 Grabba 智能卡读卡器。我正在尝试使用 APDU 命令获取卡片信息。我已经阅读了很多关于 EMV 标准和相关 ISO 7816-4 标准的内容，但我无法成功执行简单的选择命令。以下是一些详细信息:

我已成功为我的 VISA 卡供电并获取其属性:

NSError *error = nil;
GRGrabbaSmartcardSession *session = [GRGrabba.sharedGrabba.smartcard startSession:&error];
NSLog(@"EMV : smartCardInsertedEvent : Attribute : %@", [session getATR]);

结果:3b690000 8072a445 6400ff00 10

当我在 here 上解析此属性时我得到了我的卡的这些信息:

我的非接触式卡是土耳其 Akbank 的信用卡，但它在 this list 中被列为土耳其的 Denizbank 卡。 .

现在我想像这样在卡片上运行一个选择命令:

NSError *error = nil;
GRGrabbaSmartcardSession *session = [GRGrabba.sharedGrabba.smartcard startSession:&error];
NSLog(@"EMV : smartCardInsertedEvent : Attribute : %@", [session getATR]);
session.protocol = 1;
uint8_t aid[] = {'2', 'P', 'A', 'Y', '.', 'S', 'Y', 'S', '.', 'D', 'D', 'F', '0', '1'};
NSData *data = [NSData dataWithBytes:aid length:sizeof(aid)];
NSError *err = nil;
GRGrabbaCommandAPDU *apduCMD =
        [[GRGrabbaCommandAPDU alloc]
                initWithCLA:0x00
                        INS:0xA4
                         P1:0x04
                         P2:0x00
                       Data:data
                         Le:0x00
                      Error:&err];

GRGrabbaResponseAPDU *response = [[GRGrabbaResponseAPDU alloc] initWithData:nil SW1:0 SW2:0];
BOOL success = [session exchangeAPDUCommand:apduCMD withResponse:response error:&error];

if (!success) {
    NSLog(@"EMV : smartCardInsertedEvent : ERROR: Could not read ADF");
    return;
}

但它因无法读取 ADF 错误而失败。谁能告诉我我做错了什么？

更新:

我尝试了以下组合，但仍然无法成功运行 select 命令:

PROTOCOL DATA           CLA     LE   STATUS
0        1PAY.SYS.DDF01 0x00    -    unrecognised SW in response: SW1 = 61, SW2 = 52
0        1PAY.SYS.DDF01 0x00    0x00 Smartcard protocol error.
0        2PAY.SYS.DDF01 0x00    -    unrecognised SW in response: SW1 = 61, SW2 = 66
0        2PAY.SYS.DDF01 0x00    0x00 Smartcard protocol error.
0        1PAY.SYS.DDF01 0x80    -    card returned Incorrect application CLA - SW1 = 6E, SW2 = 00
0        1PAY.SYS.DDF01 0x80    0x00 card returned Incorrect application CLA - SW1 = 6E, SW2 = 00
0        2PAY.SYS.DDF01 0x80    -    card returned Incorrect application CLA - SW1 = 6E, SW2 = 00
0        2PAY.SYS.DDF01 0x80    0x00 card returned Incorrect application CLA - SW1 = 6E, SW2 = 00
1        1PAY.SYS.DDF01 0x00    -    unrecognised SW in response: SW1 = 00, SW2 = 00
1        1PAY.SYS.DDF01 0x00    0x00 unrecognised SW in response: SW1 = 00, SW2 = 00
1        2PAY.SYS.DDF01 0x00    -    unrecognised SW in response: SW1 = 00, SW2 = 00
1        2PAY.SYS.DDF01 0x00    0x00 unrecognised SW in response: SW1 = 00, SW2 = 00
1        1PAY.SYS.DDF01 0x80    -    unrecognised SW in response: SW1 = 00, SW2 = 00 
1        1PAY.SYS.DDF01 0x80    0x00 unrecognised SW in response: SW1 = 00, SW2 = 00
1        2PAY.SYS.DDF01 0x80    -    unrecognised SW in response: SW1 = 00, SW2 = 00
1        2PAY.SYS.DDF01 0x80    0x00 unrecognised SW in response: SW1 = 00, SW2 = 00

最佳答案

以下两个结果看起来非常好:

PROTOCOL DATA           CLA     LE   STATUS
0        1PAY.SYS.DDF01 0x00    -    unrecognised SW in response: SW1 = 61, SW2 = 52
0        2PAY.SYS.DDF01 0x00    -    unrecognised SW in response: SW1 = 61, SW2 = 66

The status word 61xx indicates that there are xx bytes of response data waiting and that you need issue a GET RESPONSE command to obtain the actual response data.

Consequently, you would need to set protocol to 0,

session.protocol = 0;

发出 SELECT 命令(对于 2PAY.SYS.DDF01)

uint8_t aid[] = {'2', 'P', 'A', 'Y', '.', 'S', 'Y', 'S', '.', 'D', 'D', 'F', '0', '1'};
NSData *data = [NSData dataWithBytes:aid length:sizeof(aid)];
NSError *err = nil;
GRGrabbaCommandAPDU *apduCMD =
        [[GRGrabbaCommandAPDU alloc]
                initWithCLA:0x00
                        INS:0xA4
                         P1:0x04
                         P2:0x00
                       Data:data
                      Error:&err];
GRGrabbaResponseAPDU *response = [[GRGrabbaResponseAPDU alloc] initWithData:nil SW1:0 SW2:0];
BOOL success = [session exchangeAPDUCommand:apduCMD withResponse:response error:&error];

并评估 SW1。如果 SW1 等于 0x90，则您已设置并且已经有了响应数据。如果它等于 0x61，那么您将需要发出 GET RESPONSE 命令，并将 Le 设置为 SW2 指示的长度:

if (response.sw1 == 0x61) {
    GRGrabbaCommandAPDU *apduGETRESPCMD =
            [[GRGrabbaCommandAPDU alloc]
                    initWithCLA:0x00
                            INS:0xC0
                             P1:0x00
                             P2:0x00
                             Le:response.sw2
                      Error:&err];
    BOOL success = [session exchangeAPDUCommand:apduGETRESPCMD withResponse:response error:&error];
}

注意:我对上面代码中的语法和字段名称不太自信...一旦你让它工作，请随意修复它。

关于iOS:使用 Grabba 读取非接触式 VISA 智能卡数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51154764/