Homepage | Set Home | Add to Favorites
Member

Dongguan Hele Electronics Corporation


Products
  • No Category
Search
 

Friends links
  • No link

Professional Mobile GSM SIM Card Supporting GSM and CDMA Network,3G Network with STK Menu
Click image to view full size image
Product: Views:110Professional Mobile GSM SIM Card Supporting GSM and CDMA Network,3G Network with STK Menu 
Unit price: Negotiable
MOQ:
Quantity:
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-11-09 09:50
  Inquiry
Details
Model Number: Professional mobile GSM SIM Card Brand Name: GRcard Key Specifications/Special Features: Specifications:1. GSM SIM card, T-Mobile SIM cards2. Can write IMSI, ICCID, SID, NID, PIN, PUK AMD, AKEY, SMSC technological information into card SIM card introduction2.1 Structure and typeSIM card is a smart card with a microprocessor and it consists of the following modules:CPUProgram memory (ROM)Working memory (RAM)
  • Data memory (EPROM or E2PROM)
  • Serial communication module
  • These five modules must be integrated into an integrated circuit (IC), otherwise their safety would be threatened
    This is because the chip connections may become illegal access and misappropriation of SIM cards important clues
    In practice, there are two different forms of SIM cards with the same functions:
    (A) Full-size SIM card (commonly known as big card), this form of SIM cards with the IC cards of the ISO 7816 Standard [ISO7816], similar to IC card
    The card has since been shrunk to the standard size of 25mm x 15mm
    (B) Embedded SIM card (commonly known as small card), the size of only 25 mm x 15 mm, is a semi-permanent packed to the cards in the mobile station equipment
    Two cards have installed waterproof, wear-resistant, anti-static contact with high accuracy and reliability characteristics
    2.2 Cryptographic algorithm and secret key in SIM card
    The most sensitive information of SIM card is the cryptographic algorithm A3, A8, secret Ki, PIN, PUK and Kc
    A3, A8 algorithm were written into the SIM card in the producing process, and most people could not read A3, A8 algorithm
    HN code could be settled by the phone owners
    PUK code is held by the operator
    Kc was derived in the process of encryption from Ki
    PIN and PUK:
    • PIN: personal identification number
    • 2 PINs exist (PIN 1 and PIN 2)
    • Limited attempts on PIN access
    • PUK –PIN Unblocking Code
    • Resetting PUK, resets PIN and the attempt counter
    • Too many attempts on PUK blocks use permanently
    The following tables describe the two phases of SIM card in GSM:
    (1) Phase 1 GSM system parameters
    Table 2-1 system parameter data options in phase 1
    Identifier
    Name
    Length
    6FAD
    Administrative
    3
    6F38
    Service table
    4
    6F07
    IMSI
    9
    6F7B
    Forbidden PLMN
    12
    6F7E
    TMSI LAI
    11
    6F20
    Kc, n
    9
    6F30
    PLMN selector
    24
    6F74
    BCCH information
    16
    6F78
    Access control 2
    Service 1: PIN disabling
    Service 2: Abbreviated dialing numbers
    Service 4: Short message storage
    Service 6: Capability configuration parameters
    Service 7: PLMN selector
    Shipping Information:
    • Lead Time: 4 - 7 days
    Main Export Markets:
    • Asia
    • Australasia
    • Central/South America
    • Eastern Europe
    • Mid East/Africa
    • North America
    • Western Europe
    Inquiry