尝试在支持NFC Interac Flash的卡上使用标准EMV协议读取借记卡卡号。
这是我的交易顺序:
请求1:00A404000E325041592E5359532E444446303100(选择2PAY.SYS.DDF01以获取PSE目录)
响应1:6F2C840E325041592E5359532E4444463031A51ABF0C1761154F07A00000027710105007496E74657261638701019000(找到AID A0000002771010，Interac)
申请2:00A4040007A000000277101000(选择AID A0000002771010)
响应2:6F348407A0000002771010A5295007496E74657261638701015F2D02656E9F38159F59039F5A019F02069F1A025F2A029F37049F58016285(选定的AID，响应包括PDOL，请参见下图。
http://i.stack.imgur.com/c9FjM.png
Request3:80A800001583130000990000000000000001240124000001230000(根据上面的结构获取处理选项)
Response3: 6985 (不允许使用命令；使用条件不满足。)
我无法通过6985错误；经过2天的规格阅读和反复试验。
从借记卡(Interac)读取卡号时有任何提示/想法/成功的例子吗？被测试的卡是具有Interac Flash非接触功能的TD借记卡。
非常感谢!
---注意:我可以从Visa和MasterCard读取卡号，而无需进行“获取处理选项”。但是由于没有GPO的情况下我一直可以得到6985，因此我尝试这样做，但是失败了。我真的不需要GPO，只需要获取卡号和有效期即可。 ---
最佳答案
版本1.4的“Interac Direct Payment的双接口读取器/终端规范”表示，当内部应用程序交易计数器(ATC)达到最大值时，卡应以SW1 SW2 = 6985进行响应:
3.2.6 GET PROCESSING OPTIONS命令
...如果ATC达到最大值('FFFF')，则卡响应
获得处理选项为SW1SW2 = '69 85'。
但是，该卡可能由于对请求的PDOL的响应无效而拒绝了GET PROCESSING OPTIONS(GPO)命令。这是GPO命令中发送的值与有效的Interac Flash事务中的值的比较:
TAG LEN MEANING YOUR SAMPLE VALID SAMPLE
9F59 03 Terminal Transaction Information 000099 C08000
9F5A 01 Terminal transaction Type 00 00
9F02 06 amount, authorised 000000000000 000000001000
9F1A 02 Terminal country code 0124 0124
5F2A 02 Transaction currency code 0124 0124
9F37 04 Unpredictable number 00000123 823DDE7A
9F58 01 Merchant Type Indicator 00 01
您会注意到:
纠正这些值后，卡很可能会接受GPO命令，并且您将能够使用READ RECORD命令读取PAN。
希望这可以帮助。
以下是接受的InteracFlash购买的示例，直到接受的GPO命令为止。 PCD标识非接触式读取器/终端发送的命令，PICC标识来自InteracFlash卡的响应:
PCD Select File
PCD CLA: 00
PCD INS: A4
PCD P1: 04
PCD P2: 00
PCD Lc: 0E
PCD Data: 32 50 41 59 2E 53 59 53 2E 44 44 46 30 31
PCD Le: 00
PICC Successful
PICC Data (46 bytes)
PICC Tag 6F:FCI Template
PICC Length:2C
PICC Value :84 0E 32 50 41 59 2E 53 59 53 2E 44 44 46 30 31
A5 1A BF 0C 17 61 15 4F 07 A0 00 00 02 77 10 10
87 01 01 50 07 49 4E 54 45 52 41 43
PICC Tag 84:Dedicated File (DF) Name
PICC Length:0E
PICC Value :32 50 41 59 2E 53 59 53 2E 44 44 46 30 31
PICC Tag A5:FCI Proprietary Template
PICC Length:1A
PICC Value :BF 0C 17 61 15 4F 07 A0 00 00 02 77 10 10 87 01
01 50 07 49 4E 54 45 52 41 43
PICC Tag BF0C:FCI Discretionary Data
PICC Length:17
PICC Value :61 15 4F 07 A0 00 00 02 77 10 10 87 01 01 50 07
49 4E 54 45 52 41 43
PICC Tag 61:Application Template
PICC Length:15
PICC Value :4F 07 A0 00 00 02 77 10 10 87 01 01 50 07 49 4E
54 45 52 41 43
PICC Tag 4F:Application Identifier
PICC Length:07
PICC Value :A0 00 00 02 77 10 10
PICC Tag 87:Application Priority Indicator
PICC Length:01
PICC Value :01
PICC Tag 50:Application Label
PICC Length:07
PICC Value :49 4E 54 45 52 41 43
PICC ASCII Value:INTERAC
PICC SW1 SW2: 90 00
PCD Select File
PCD CLA: 00
PCD INS: A4
PCD P1: 04
PCD P2: 00
PCD Lc: 07
PCD Data: A0 00 00 02 77 10 10
PCD Le: 00
PICC Successful
PICC Data (62 bytes)
PICC Tag 6F:FCI Template
PICC Length:3C
PICC Value :84 07 A0 00 00 02 77 10 10 A5 31 50 07 49 4E 54
45 52 41 43 87 01 01 9F 38 15 9F 59 03 9F 5A 01
9F 02 06 9F 1A 02 5F 2A 02 9F 37 04 9F 58 01 5F
2D 02 65 6E BF 0C 05 9F 4D 02 0B 14
PICC Tag 84:Dedicated File (DF) Name
PICC Length:07
PICC Value :A0 00 00 02 77 10 10
PICC Tag A5:FCI Proprietary Template
PICC Length:31
PICC Value :50 07 49 4E 54 45 52 41 43 87 01 01 9F 38 15 9F
59 03 9F 5A 01 9F 02 06 9F 1A 02 5F 2A 02 9F 37
04 9F 58 01 5F 2D 02 65 6E BF 0C 05 9F 4D 02 0B
14
PICC Tag 50:Application Label
PICC Length:07
PICC Value :49 4E 54 45 52 41 43
PICC ASCII Value:INTERAC
PICC Tag 87:Application Priority Indicator
PICC Length:01
PICC Value :01
PICC Tag 9F38:Processing Options Data Object List (PDOL)
PICC Length:15
PICC Value :9F 59 03 9F 5A 01 9F 02 06 9F 1A 02 5F 2A 02 9F
37 04 9F 58 01
PICC Tag 9F59:Terminal Transaction Information
PICC Length:03
PICC Tag 9F5A:Terminal transaction Type
PICC Length:01
PICC Tag 9F02:Amount, Authorized (Numeric)
PICC Length:06
PICC Tag 9F1A:Terminal Country Code
PICC Length:02
PICC Tag 5F2A:Transaction Currency Code
PICC Length:02
PICC Tag 9F37:Unpredictable Number
PICC Length:04
PICC Tag 9F58:Merchant Type Indicator
PICC Length:01
PICC Tag 5F2D:Language Preference
PICC Length:02
PICC Value :65 6E
PICC ASCII Value:en
PICC Tag BF0C:FCI Discretionary Data
PICC Length:05
PICC Value :9F 4D 02 0B 14
PICC Tag 9F4D:Log Entry
PICC Length:02
PICC Value :0B 14
PICC SW1 SW2: 90 00
PCD Get Processing Options
PCD CLA: 80
PCD INS: A8
PCD P1: 00
PCD P2: 00
PCD Lc: 15
PCD Data: 83 13 C0 80 00 00 00 00 00 00 10 00 01 24 01 24
82 3D DE 7A 01
PCD Le: 00
PICC Successful
PICC Data (23 bytes)
PICC Tag 77:Response Message Template Format 2
PICC Length:15
PICC Value :82 02 18 00 94 08 08 01 01 00 10 01 02 00 9F 63
04 00 10 00 00
PICC Tag 82:Application Interchange Profile
PICC Length:02
PICC Value :18 00
PICC Tag 94:Application File Locator (AFL)
PICC Length:08
PICC Value :08 01 01 00 10 01 02 00
PICC Tag 9F63:Card Transaction Information
PICC Length:04
PICC Value :00 10 00 00
PICC SW1 SW2: 90 00
...