JCOP J3A系列卡是否支持int数据类型？

Question

JCOP/J3A081是否支持int数据类型？

我正在使用最新的eclipse JCOP工具进行java card applet开发。我需要在卡中存储大整数值，所以我在applet中使用了整数数据类型(int)来表示balance。它正在编译，没有任何错误，但在将CAP文件上传到JCOP J3A081卡时出现错误6A80。我尝试了GP 2.1.1，GP 2.2.1，JDK 2.2.2，JDK 3.0.4库的所有组合，但得到了相同的错误。

J3A/J2A系列卡是否支持int数据类型变量和JCint库？如果是，如何解决这个问题？

Applet源代码：

​

​

注意:如果删除int数据类型变量和JCint引用，则不会出现错误。

​

-  version
current version is 5.32.0.4 [1]
build timestamp is 27-01-2020 12:10:53
-  /terminal
--Opening terminal
Session ID: 6527B91D44DD89CDE6AB60FCA590DF06
>  /list-readers
----------------------
Name ( Type )
----------------------
>  /card -v
Warning: Usage of /atr with no preceding of /reset is deprecated. /reset is invoked.
 IOCTL().
ATR: 3B89800150565F4A334130383150
ATR: 
      Hist = PV_J3A081           
         T = 0                   
         T = 1                   
 => 00 A4 04 00 00                                     .....
 (12493 usec [SYS])
 <= 6F 65 84 08 A0 00 00 00 03 00 00 00 A5 59 9F 65    oe...........Y.e
    01 FF 9F 6E 06 47 91 00 78 34 00 73 4A 06 07 2A    ...n.G..x4.sJ..*
    86 48 86 FC 6B 01 60 0C 06 0A 2A 86 48 86 FC 6B    .H..k.`...*.H..k
    02 02 01 01 63 09 06 07 2A 86 48 86 FC 6B 03 64    ....c...*.H..k.d
    0B 06 09 2A 86 48 86 FC 6B 04 02 15 65 0B 06 09    ...*.H..k...e...
    2B 85 10 86 48 64 02 01 03 66 0C 06 0A 2B 06 01    +...Hd...f...+..
    04 01 2A 02 6E 01 02 90 00                         ..*.n....
Status: No Error
FCI Data:
 Max. Block Length: 255
 CPLC Data: 
  Operating System ID                : 4791
  Operating System release date      : 0078 (18.3.20X0)
  Operating System release level     : 3400
 Security Domain Management Data: 
  Global Platform Version: 2.1.1
  Secure Channel Protocol: 02 (option 15)
cm>  /identify
FABKEY ID:   0x02
PATCH ID:    0x21
TARGET ID:   0x00 (null)
MASK ID:     0x34 (52)
CUSTOM MASK: 00000000
MASK NAME:   NX011D
FUSE STATE:  fused
ROM INFO:    58E957
COMBO NAME:  null-m34.02.21-NX011D
cm>  get-cplc -v
 => 80 CA 9F 7F 00                                     .....
 (8475 usec [SYS])
 <= 9F 7F 2A 47 90 51 68 47 91 00 78 34 00 31 30 04    ..*G.QhG..x4.10.
    81 33 96 75 18 48 12 31 37 00 00 00 00 0F 20 38    .3.u.H.17..... 8
    34 38 31 33 33 00 00 00 00 00 00 00 00 90 00       48133..........
Status: No Error
  IC Fabricator                      : 4790
  IC Type                            : 5168
  Operating System ID                : 4791
  Operating System release date      : 0078 (18.3.20X0)
  Operating System release level     : 3400
  IC Fabrication Date                : 3130 (10.5.2003)
  IC Serial Number                   : 04813396
  IC Batch Identifier                : 7518
  IC Module Fabricator               : 4812
  IC Module Packaging Date           : 3137 (17.5.2003)
  ICC Manufacturer                   : 0000
  IC Embedding Date                  : 0000
  IC Pre-Personalizer                : 0F20
  IC Pre-Perso. Equipment Date       : 3834
  IC Pre-Perso. Equipment ID         : 38313333
  IC Personalizer                    : 0000
  IC Personalization Date            : 0000
  IC Perso. Equipment ID             : 00000000
cm>  /cap-info "C:\Users\pp\eclipse-workspace\testJCOP\bin\com\pryogika\jc\javacard\jc.cap"
CAP file name       :     C:\Users\pp\eclipse-workspace\testJCOP\bin\com\pryogika\jc\javacard\jc.cap
CAP file version    :     2.2
Java package name   :     com.pryogika.jc
Internal pkg. name  :     com/pryogika/jc
CAP file components :
    Header.cap (38 Bytes)
    Directory.cap (36 Bytes)
    Import.cap (36 Bytes)
    Applet.cap (22 Bytes)
    Class.cap (17 Bytes)
    Method.cap (82 Bytes)
    StaticField.cap (13 Bytes)
    ConstantPool.cap (41 Bytes)
    RefLocation.cap (16 Bytes)
    Descriptor.cap (90 Bytes)
    Debug.cap (500 Bytes)
Integer support     :     yes
Package version     :     1.0
Package AID         :     "HelloJCOP"
Import AIDs         :
    A0000000620101 (javacard.framework) version 1.3
    A00000006202080101 version 1.0
    A0000000620001 (java.lang) version 1.0
Applet AIDs         :
    "HelloJCOPApplet"
Code size to load   :     301  bytes
Code size on card   :
    pkgAID          :     9
    applet AIDs     :     22
    classes         :     17
    methods         :     82
    statics         :     0
    exports         :     0
    -------------------------------------
    overall         :     130  bytes
SHA-256 (Load File data):  FD9E6BDB25A9C863B83C1ECE829F66DBEAA64B38BF5CD4EA953651B110AAD209
SHA-256 (Load File dbg) :  07F25D2E0A470C0AFECCADEF1387986D70C71606E33DD339ED89F4CE1CA84467
SHA-256 (Load File)     :  CE72441BF5B56BB36A4AEBE3F3A96725D0A36926697B9187C3873C3437CBEAA4
SHA-1 (Load File data):     C5EFC5FAAE4FB711E327F5563C48888EA56F81D5
SHA-1 (Load File dbg) :     41264E6C8F21F1C46F2BE7EBCF70CAE00624A277
SHA-1 (Load File)     :     EB826D7E56AFF5AAF4C4CD3FC4FB5850DD81D91F
DAP block(s)        :     none
Load Token(s)       :     none
Install Token(s)    :     none
Delete Token(s)    :     none

cm>  set-key 1/1/DES-ECB/404142434445464748494a4b4c4d4e4f 1/2/DES-ECB/404142434445464748494a4b4c4d4e4f 1/3/DES-ECB/404142434445464748494a4b4c4d4e4f
cm>  init-update
 => 80 50 00 00 08 11 A9 0F 67 2B 22 B6 E1 00          .P......g+"...
 (37691 usec [SYS])
 <= 00 00 31 30 04 81 33 96 75 18 01 02 00 3E 60 17    ..10..3.u....>`.
    08 B3 12 20 F1 76 A5 F1 D0 6D 12 BD 90 00          ... .v...m....
Status: No Error
cm>  ext-auth plain
 => 84 82 00 00 10 3F BE FC 67 E2 96 5E DF A7 85 B1    .....?..g..^....
    9C CF C3 A4 F2                                     .....
 (42458 usec [SYS])
 <= 90 00                                              ..
Status: No Error
cm>  card-info
 => 80 F2 80 00 02 4F 00 00                            .....O..
 (8862 usec [SYS])
 <= 08 A0 00 00 00 03 00 00 00 07 9E 90 00             .............
Status: No Error
 => 80 F2 40 00 02 4F 00 00                            ..@..O..
 (7220 usec [SYS])
 <= 6A 88                                              j.
Status: Reference data not found
 => 80 F2 10 00 02 4F 00 00                            .....O..
 (8838 usec [SYS])
 <= 6A 88                                              j.
Status: Reference data not found

Card Manager AID   :  A000000003000000
Card Manager state :  INITIALIZED

cm>  upload -b 250 "C:\Users\pp\eclipse-workspace\testJCOP\bin\com\pryogika\jc\javacard\jc.cap"
 => 80 E6 02 00 16 09 48 65 6C 6C 6F 4A 43 4F 50 08    ......HelloJCOP.
    A0 00 00 00 03 00 00 00 00 00 00 00                ............
 (13758 usec [SYS])
 <= 00 90 00                                           ...
Status: No Error
 => 80 E8 00 00 FA C4 82 01 2D 01 00 23 DE CA FF ED    ........-..#....
    02 02 05 00 01 09 48 65 6C 6C 6F 4A 43 4F 50 0F    ......HelloJCOP.
    63 6F 6D 2F 70 72 79 6F 67 69 6B 61 2F 6A 63 02    com/pryogika/jc.
    00 21 00 23 00 21 00 13 00 21 00 26 00 0E 00 4F    .!.#.!...!.&...O
    00 0A 00 0D 00 00 00 57 00 00 00 00 00 00 00 00    .......W........
    03 01 00 04 00 21 03 03 01 07 A0 00 00 00 62 01    .....!........b.
    01 00 01 09 A0 00 00 00 62 02 08 01 01 00 01 07    ........b.......
    A0 00 00 00 62 00 01 03 00 13 01 0F 48 65 6C 6C    ....b.......Hell
    6F 4A 43 4F 50 41 70 70 6C 65 74 00 08 06 00 0E    oJCOPApplet.....
    00 00 00 80 03 00 FF 00 07 01 00 00 00 1C 07 00    ................
    4F 00 01 10 18 8C 00 00 7A 05 30 8F 00 01 3D 8C    O.......z.0...=.
    00 02 18 1D 04 41 18 1D 25 8B 00 03 7A 04 23 18    .....A..%...z.#.
    8B 00 04 60 03 7A 19 8B 00 05 2D 1A 04 25 73 00    ...`.z....-..%s.
    1B 00 00 00 00 00 09 12 0A 36 1A 08 23 8D 00 06    .........6..#...
    3B 19 08 07 8B 00 07 70 08 11 6D 00 8D 00 08 7A    ;......p..m....z
    08 00 0A 00 00 00 00 00 00 00 00 00 00 05 00 00    ................
 (25820 usec [SYS])
 <= 6A 80                                              j.
Status: Wrong data
jcshell: Error code: 6a80 (Wrong data)
jcshell: Wrong response APDU: 6A80
cm>  /list-v
Global:____________________________________________
   SESSION.ID=0FA5DF09FC02F2276D5A113D1591EE7C
   cap.applet.aids=48656C6C6F4A434F504170706C6574
   cap.package.aid=48656C6C6F4A434F50
   exec.dir=C:\Users\pp\Desktop
   jcop.v242=false
   last.apdu.executiontime=25.717
   last.apdu.executiontime.unit=msec
   last.executiontime=52.0
   last.executiontime.unit=msec
   last.response.status=6a80
   logfile.list=
cm>  card-info
 => 80 F2 80 00 02 4F 00 00                            .....O..
 (17196 usec [SYS])
 <= 08 A0 00 00 00 03 00 00 00 07 9E 90 00             .............
Status: No Error
 => 80 F2 40 00 02 4F 00 00                            ..@..O..
 (20679 usec [SYS])
 <= 6A 88                                              j.
Status: Reference data not found
 => 80 F2 10 00 02 4F 00 00                            .....O..
 (8299 usec [SYS])
 <= 6A 88                                              j.
Status: Reference data not found

Card Manager AID   :  A000000003000000
Card Manager state :  INITIALIZED

​

Answer 1

不支持，这些卡不支持int类型。要完全确定，只需向恩智浦索要数据表或用户手册，如果没有，则直接向他们索要。

如果你想支持更大的数据类型，这当然是可能的，但你必须自己编程。在这种情况下，对象存储在永久内存中的事实当然不会有任何帮助，而是it can be done。

否则:这取决于您需要什么样的整数支持。在逐字节的基础上实现加法或减法是非常容易的。出于加密的目的，您可能需要更深入地研究。有时，您还可以使用现有的API，例如DH密钥协议来执行模幂运算。例如，有执行椭圆曲线计算的实例库(需要大整数)。