SIM Cards, Used for Mobile Communication Network Operate on the Global System

SIM Cards, Used for Mobile Communication Network Operate on the Global System

Get Latest Price

Payment Type:: T/T, PayPal

Quantity:

Your message must be between 20 to 2000 characters

Contact Now

Basic Info

Payment Type:	T/T, PayPal

Product Description

Introduction:

64K GSM SIM cards
Can write IMSI, ICCID, SID, NID, PIN, PUK AMD, AKEY, SMSC technological information into card

Structure and type:

SIM card is a smart card with a microprocessor and it consists of the following modules:
- CPU
- Program memory (ROM)
- Working memory (RAM)
- Data memory (EPROM or E2PROM)
- Serial communication module
- These five modules must be integrated into an integrated circuit (IC), other wise 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:

Full-size SIM card (commonly known as big card), this form of SIM cards, similar to IC card
The card has since been shrunk to the standard size of 25 x15mm
Embedded SIM card (commonly known as small card), the size of only 25 x 15mm, 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
Cryptographic algorithm and secret key in SIM card:
The most sensitive information of SIM card is the crypto graphical gorithm 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

CPU:

Program memory (ROM)
Working memory (RAM)
Data memory (EPROM or E2PROM)
Serial communication module

64K GSM SIM cards

Can write IMSI, ICCID, SID, NID, PIN, PUK AMD, AKEY, SMSC technological information into card

SIM card is a smart card with a microprocessor and it consists of the following modules:

CPU
Program memory (ROM)
Working memory (RAM)
Data memory (EPROM or E2PROM)
Serial communication module
These five modules must be integrated into an integrated circuit (IC), other wise their safety would be threatened
This is because the chip connections may become illegal access and misappropriation of SIM cards important clues

CPU

Program memory (ROM)

Working memory (RAM)

Data memory (EPROM or E2PROM)

Serial communication module

These five modules must be integrated into an integrated circuit (IC), other wise their safety would be threatened

This is because the chip connections may become illegal access and misappropriation of SIM cards important clues

Full-size SIM card (commonly known as big card), this form of SIM cards, similar to IC card

The card has since been shrunk to the standard size of 25 x15mm

Embedded SIM card (commonly known as small card), the size of only 25 x 15mm, 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

Cryptographic algorithm and secret key in SIM card:

The most sensitive information of SIM card is the crypto graphical gorithm 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 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

Program memory (ROM)

Working memory (RAM)

Data memory (EPROM or E2PROM)

Serial communication module

Send your message to this supplier

* From:
* To:

Ms. Zhu
* Messages:

Enter between 20 to 4,000 characters.

Related Keywords