TWI499317B - A secure removable card and a mobile wireless communication device - Google Patents

Description

Secure removable card and mobile wireless communication device Technical field

The invention relates to a secure removable card having a processor and a non-electrical memory and adapted for a mobile wireless communication device to be connected to a network "internet" of an interconnected computer network The non-electrical memory storage group is configured as a code and user data to be executed by the processor. The removable card has a processor and a memory with two parts, wherein the processor restricts the user from accessing the first portion and allows the user to access the second portion to store user data. However, since the network carrier provider accesses the two parts and can store the user data in the second part on the Internet as a backup, the user data in the second part must be secured. Even network operators can't get it.

Background of the invention

Mobile wireless communication devices, such as cell phones, are well known in the art. Typically, a mobile phone has a removable card (called a "SIM card") that is attached to a processor (with RAM, ROM or EEPROM or flash memory) , I / O gaskets, and safety monitoring circuits. The non-electrical memory system in the SIM card is used to store information needed to access the mobile operator's network. Thus, the card can store information such as phone numbers, access codes, number of minutes, call plans, and the like.

A network ("Internet") that interconnects computer networks is also well known in the art. The Internet can be accessed by a computer with a direct connection (wired or wireless) Connected through or through a common carrier wireless network.

As the speed of mobile networks (such as 3G networks) grows, users of mobile wireless devices desire to enter the Internet via their mobile wireless communication devices. Although the speed of mobile networks is increasing, the cost of using this network can also increase with the use of a larger number of public carrier networks, especially when entering the Internet.

Therefore, it is desirable to provide a mechanism whereby the user's experience of accessing the Internet through the mobile network is not reduced, but at the same time providing means to reduce the cost of accessing the Internet through the mobile network. In addition, as the cost of storage capacity continues to decrease, users will store valuable information (including personal and private information) in such portable devices. Since the mobile device can access the Internet, the public carrier service provider can provide a backup service for this data on the Internet. Therefore, it is desirable to preserve the data stored in the portable mobile device. In addition, even if the public carrier provider does not provide the Internet data backup service, the user still expects to preserve the data because the portable mobile device can be easily lost or stolen.

Therefore, it is expected that the data provided by the user is safely stored in this mobile device.

Summary of invention

Accordingly, in the present invention, a removable card has an electrical connection for connection to a mobile wireless communication device for use by a user to access a common carrier network for interconnection A network of computer networks ("Internet"). The card contains a processor and is connected to the location A non-electrical memory of the processor. The non-electrical memory has two parts: a first part and a second part. The first portion is accessible by the public carrier network provider, which limits the user's access to the first portion. The second portion is accessible by the public carrier network provider, and the processor allows the user to access the second portion to store user data therein. Finally, the removable card has logic circuitry for encoding user data to generate encrypted user data for storage in the second portion.

The present invention also relates to a mobile wireless communication device for use by a user to access a public carrier network to access a network ("Internet") interconnecting the computer network. The device includes a transceiver for wirelessly communicating via a wireless common carrier network. The apparatus further has a first processor for controlling communication of the device to connect to the common carrier network. The device further has a second processor and a non-electrical memory connected to the second processor. The non-electrical memory has two parts: a first part and a second part. The first portion is accessible by a public carrier network provider and the second processor limits user access to the first portion. The second portion is accessible by the public carrier network provider, and the second processor allows the user to access the second portion to store user data therein. Finally, the device has a logic circuit for encoding user data to generate encrypted user data for storage in the second portion.

Simple illustration

1 is a diagram of a removable card of the present invention connected to a mobile wireless communication device of the present invention for connection to a mobile network and the Internet.

Figure 2 is a diagram of the present invention connected to the mobile wireless communication device of the present invention. A schematic diagram of a removable card.

Figure 3 is a block diagram circuit diagram of the removable card of the present invention.

Figure 4 is a detailed circuit diagram of the processor portion of the removable card of the present invention.

Figure 5 is a diagram of two modes of the mobile wireless communication device using the removable card and the Internet communication of the present invention, wherein in the first mode, the removable card wirelessly communicates with the mobile network through the wireless communication device To access the Internet, and in a second mode, the removable card is connected to a network entry device to connect to the Internet.

Figure 6 is a block diagram of a removable card having security features of the present invention.

Detailed description of the preferred embodiment

Referring to FIG. 1, a mobile wireless communication device 100 (eg, one) is used in a publicly accessible (common carrier) wireless communication network, such as a cellular network 110 including a cellular access tower 120. A graphical illustration of the mobile phone 100). The cellular network 110 is connectable to a network 150, also known as the Internet 150, of the interconnected computer network via an ad server (not shown) located on or near the tower 120. Thus, the handset 100 can communicate wirelessly with other handsets 100 on the handset network 110. In addition, the mobile phone 100 can wirelessly communicate with the Internet 150 via the mobile phone network 110, and the mobile phone network 110 has an incoming server connected to the Internet 150. In addition, as will be shown below, the removable card 10 portion of the handset 100 can also be directly connected to the Internet 150 via a network entry device (such as a carrying computer dock 160) that is connected to the connection. Go to one of the Internet 150 personal computers.

The handset 100 of the present invention has a removable card 10 that is very similar to prior art removable SIM cards. However, as will be seen, the features of the removable card 10 of the present invention are quite different and improved over prior art removable SIM cards.

Referring to FIG. 2, a schematic diagram of a removable card 10 of the present invention coupled to the mobile wireless communications device 100 of the present invention is shown. Since the device 100 is designed to operate wirelessly throughout the cellular network 110, the device 100 includes an antenna 102. A transceiver 104 is coupled to the antenna 102. The transceiver 104 transmits the modulated signal to the cellular network 110 and receives the modulated signal from the cellular network 110. Such components are well known in the art. The received signal can be demodulated and then converted to a digital signal and provided to a gateway 106. Gate 106 can also have a NAT (Network Address Translation) circuit. A NAT circuit 106 translates or maps a private IP address to one or more ports of a public IP address. As will be discussed below, device 100 (via removable card 10) can be assigned a common address (via a conventional DHCP protocol) when it is connected to the Internet 150, and operates as a local server such that device 100 There may be a private address when not connected to the Internet 150. The digital signal to be transmitted is modulated by the transceiver 104 and converted to an appropriate electromagnetic frequency signal for transmission by the antenna 102. Since the device 100 can access the Internet 150, a browser and media player 112 is also provided. The browser and media player 112 interfaces with the gateway 106 in accordance with conventional TCP/IP protocols and HTTP protocols to provide and receive digital signals received by the device 100 from the Internet 150, which digital signals can be displayed on a display 108. Associated with the browser and media player 112 is a processor (not shown) that also controls the transceiver 104 of the device 100 and other conventional hardware circuitry to communicate with the network 110.

The removable card 10 of the present invention is coupled to the device 100 via a portable computer dock 160 via a conventional USB interface 114. The USB interface 114 is connected to the gateway 106. Therefore, the digital signal from the removable card 10 is provided to the device 100 and the self device 100 is provided to the antenna 102 through the portable computer dock 160, through the USB interface 114, through the gateway 106, and through the transceiver 104.

The removable card 10 of the present invention is shown in more detail in FIG. In particular, the card 10 includes a host controller 12 that interfaces with the USB interface 114 via a USB bus 113. In addition, the host controller 12 is coupled to a memory controller 14 via a busbar 16. The memory controller 14 controls a NAND memory 20 and a PSRAM 22. The memory controller 14 controls the operation of the NAND memory 20 and the PSRAM 22, which is fully described and assigned in U.S. Patent Application Serial No. 11/637,420, the entire disclosure of which is incorporated by reference. The present disclosure is hereby incorporated by reference in its entirety. The host controller 12 can also be removably connected to a proximity wireless communicator (NFC) 24. An NFC 24 is a close range RF circuit that allows for very close wireless communication. Thus, the device 100 with NFC 24 can act as an "electronic wallet" for commercial transactions or identification purposes, or as an alternative to the Internet 150. Of course, the device 100 can also be wirelessly connected to the Internet 150 via other forms of wireless networks, such as a Wi-Fi network.

Referring to FIG. 4, a detailed schematic block diagram of the host controller 12 is shown. The host controller 12 includes a high speed bus bar 50 to which a host interface 30 is attached for connection to the memory controller 14. The host interface 30 also includes a scratchpad 32 to temporarily store data supplied to the memory controller 14 and from the memory controller 14. The host controller 12 also includes a FIFO (First In First Out) circuit 51 that is coupled to the high speed bus bar 50. The FIFO 51 is also coupled to a USB controller circuit 54, which is coupled to a PHY circuit 56 (which is a standard physical layer interface for a USB port). The circuit 56 includes a pad, a voltage level shifter, and a clock. Restore the circuit.) to connect to the USB bus 113. A secure processor, such as an ARM SC-100 processor 52, is also coupled to the high speed bus 50.

Host controller 12 also includes an RSA/AES/DES engine 60, which is a secure coprocessor of ARM SC-100 processor 52. The engine 60 is coupled to the high speed busbar 50 via an arbitration circuit 62. Since the engine 60 and the processor 52 can simultaneously request the memory or other resources of the high speed bus 50, the arbitration circuit 62 arbitrates the synchronization request for accessing the bus 50. The engine 60 can also access a dedicated high speed cache RAM, such as SRAM 64. Finally, a bridge circuit 68 is also coupled to the high speed bus bar 50. Bridge circuit 68 is also coupled to a slower busbar 70. A timer 72, a clock generator 74, a power management circuit 76, a security monitoring circuit 78, a UART 80, and an SPI circuit 82 (serial peripheral interface - a conventional bus) are connected to the slower bus 70. UART 80 and SPI 82 are also coupled to a busbar 91, which is an ISO7816 serial interface bus. It is a tuple-oriented universal asynchronous receiver/transmitter (UART) interface between a telephone and a SIM card that is commonly found in prior art handsets. This type of interface (using the UART) is being replaced with a USB interface. Therefore, the bus bar 91 appears only for backward compatibility.

Operation of a mobile wireless communication device

The mobile wireless communication device 100 of the present invention has many modes of operation. Initially, it should be noted that a mobile network operator (MNO) (homic network operator 110) distributes each removable card 10 and also has a server 200 connected to the Internet 150. Each of the inventive removable cards 10 distributed by the MNO is assigned a unique public IP address by the MNO, which is stored in the non-electrical memory portion of the removable card 10. The unique public IP address causes device 100 to point to MNO server 200. A non-electrical memory appears in the NAND memory embedded in the controller 14 as disclosed in U.S. Patent Application Serial No. 11/637,420, the entire disclosure of which is incorporated by reference. 20 and NOR memory. In any event, the MNO assigns and pre-stores a unique public IP address to the non-electrical memory portion of the removable card 10. The non-electrical memory can be divided into two parts, and the division between the first part 220a and the second part 220b can be changed. The division of the first part/second part can be done by the MNO provider of the removable card. The first portion 220a can be accessed by a processor of another hardware circuit that controls the transceiver 104 and the browser to communicate with the media player 112 and the control device 100. The second portion 220b is accessible by the processor 52 in the removable card 10 accessible to the user. In addition, processor 52 controls the degree of access a user can have to first portion 220a. In any event, for the reasons to be discussed, the unique public IP address assigned by the MNO is stored in the first portion 220a, and the processor 52 prohibits access to the first portion. However, other types of information, such as sensitive user information (such as user names, credit cards, etc.) may also be stored in the first portion 220a and the processor 52 may allow the user to have restricted access to these types of information.

After the removable card 10 of the present invention is distributed to the user and the user has inserted the card 10 into the device 100 of the present invention, the user can then use the device 100 to operate on the cellular network 110, as in the prior art. Do that in the middle. Similar to the prior art, the card 10 can also store information about the use of the device 100 (such as phone number, access code, number of minutes, call plan, etc.) in the first portion 220a of the memory portion of the card 10 (using Limited). Obviously, it is appropriate to store this type of information in the restricted portion of the user so that the user cannot have unrestricted access. In this manner, the removable card 10 functions the same as the prior art SIM card when used in the cellular network 110.

The inventive features of the present invention are seen when a user attempts to use the device 100 to access the Internet 150. There are at least two possible modes (first mode or second mode) to access the Internet 150. The stylized code stored in the non-electrical memory 14 can cause the processor 52 to enter the Internet 150 in either the first mode of operation or the second mode.

In the first mode, the removable card 10 can access the Internet 150 through the cellular network 110 via the device 100. In that case, device 100 is coupled to Internet 150 via an incoming server connected to cellular network 110 near tower 120. When activated, an incoming server (similar to an Internet Service Provider (ISP)) can assign a dynamic IP address to device 100 during a session in which device 100 is connected to Internet 150. The dynamic assignment of this public IP address when device 100 is connected to the Internet 150 is well known in the art and is in accordance with the DHCP protocol. Alternatively, as previously discussed, the public IP address can be pre-assigned and stored in the removable card 10. The browser and media player 112 of the device 100 is then used to browse or roam the Internet 150. The content from the Internet 150 can then be downloaded and saved in the removable card 10, in the restricted memory portion or user accessible portion of the user of the card 10.

In order to communicate securely with the Internet, a restricted portion of the memory portion of the card 10 can store a key. The RSA/AES/DE engine 60 of the host controller 12 can use the key to encrypt and/or decrypt communications to and from the Internet 150. The key may be provided by the MNO when it initially distributes the removable card 10, or may be downloaded from the MNO server 200 connected to the Internet 150 when the device is connected to the Internet 150.

Information obtained from the Internet 150 via the wireless network 110 can be stored in a restricted portion of the user of the removable card 10 that is associated with an assigned private IP address. The private IP address may be first assigned by the MNO and stored in the removable card prior to distribution. Alternatively, the private IP address can be assigned by an ingress server connected to the cellular network 120. Finally, the private address may simply be a public IP address that is dynamically assigned by the incoming server and then converted by the NAT circuit 106 into a private IP address. After the information from the Internet 150 is stored in the removable card 10, it can be retrieved by the browser and media player 112 and displayed on the display 108 of the device 100 (using a private IP address). This is similar to the operation of an internal network. Thus, the removable card 10 functions to provide information stored in its memory to a local (private) server of the browser and media player 112.

It is advantageous to use a "private" IP address when the browser 112 is accessing in a local mode, as this is more economical than having two public IP addresses assigned to the device 100: Roaming or browsing the Internet 150 is used for the telephone portion of the device 100, and another public IP address is used for the removable card 10 when viewing the contents of the removable card 10. Since the content stored in the removable card 10 is for the user using the device 100, it is not necessary to have the removable card 10 have a public IP address. Further, the device 100 may not be connected to the Internet 150 while the user is viewing the content stored in the removable card 10.

In a second mode, device 100 may enter Internet 150 without going through cellular network 110. One way is through a network entry device 170, such as a terminal connected to a PC (for example, via a USB port). Another way is through a wireless link, such as Wi-Fi, which is wirelessly connected to a receiving device (not shown) connected to the Internet 150. In either manner, device 100 has a computer dock switch 160. Referring to Figure 5, a diagram of this communication mode (along with the first mode) is schematically illustrated. Typically, in the first mode, the removable card 10 is coupled to the USB interface 114 via the computer dock switch 160. However, when the device 100 is connected to or through the NFC 24, the computer dock switch 160 is changed, causing the removable card 10 to disconnect from the USB interface 114. Thus, for example, when a USB cable is connected to the computer dock switch 160, the removable card 10 is disconnected from the USB interface 114 and directly connected to the PC 170 along its USB port. Computer dock switch 160 then disconnects the removable card 10 from the remainder of device 100, including transceiver 104. Because the removable card 10 includes the cellular network 110 receiving information, if the device 100 is wirelessly entering the Internet through the cellular network 110, the device 100 will stop transmitting wirelessly to the cellular network 110 and from the cellular network. 110 received. Similar to the first mode of operation, when the device 100 is connected to the Internet 150 through the computer dock switch 160 to the PC gateway 170, an Internet Service Provider (ISP) initially assigns a public IP address to connect to the Internet. Network 150. Again, this is used during a session in which the public IP address is dynamically assigned for the device 100 to connect to the Internet 150.

Finally, because the removable card 10 stores a public IP address assigned by the MNO in the user restricted portion of the memory, the public IP address causes the device 100 to point to the MNO server 200. During a time period when the device is connected to the Internet 150 through the PC portal 170 and the user is not browsing or roaming the Internet 150 (eg, for example, the device 100 is in a carrying computer dock connected to the computer dock switch 160) When charging the battery of device 100), device 100 can walk through MNO server 200 using the public IP address stored in removable card 10. The MNO server 200 can then cause content, such as a movie or stylized code (updated for the device 100) to be downloaded and stored in the user restricted portion of the removable card 10 of the device 100. The benefit of this mode is that when the device 100 is not connected to the cellular network 110, and when the user does not actively roam or browse the Internet 150, a large amount of content can be downloaded. The downloaded movie or other material may then be activated by an authorization code and/or a payment code. Since the movie or other content is downloaded from the MNO server 200, the user can determine the reliability of the content (ie, from virus infection, etc.). In addition, since the content owner knows that the content is downloaded in a secure manner and stored in a restricted portion of the user, they can be guaranteed not to be illegally copied. In this way, this becomes a reliable procedure for all parties. Finally, by allowing the programmatic code to be distributed in this manner, an efficient and convenient mode is provided to ensure the update of device 100.

In addition, each removable card 10 can also be assigned a unique IP address by the MNO operator. This provides another unique feature of the invention. When the device 100 (the removable card 10 is connected to it) is connected to the Internet 150, and the removable card 10 has a unique IP address, the MNO server 200 also connected to the Internet 150 can be downloaded. Information for all removable cards 10 or only some removable cards 10 or even only one removable card 10. Information downloaded to one or more removable cards 10 may be stored in the user restricted memory portion of card 10. Examples of information that can be stored in the restricted portion of the user include administrative information such as changes to the call plan, an increase in minutes, and the like. In addition, the "information" may be data or may be a programmatic code (including Java applets) for execution by the host controller 12. Thus, for example, the "information" downloaded from the MNO server can be a program that causes the host controller 12 to execute the code that causes the device 100 to enter the cellular network 110 to periodically enter the Internet 150. Or enter a particular location on the Internet 150 (such as the IP address of the MNO server 200) or obtain updates, downloads, and the like in a particular manner.

Since the device 100 can be connected to the Internet through a common carrier network, the user can store the user data in the second portion 220b of the memory 20. However, since the memory 20 is accessible by the MNO, the MNO can provide services to the user, such as backing up user data stored in the second portion 220b of the memory 20. However, since the user data stored in the second portion 220b can be the user's personal or confidential information, the user will want the user data to be preserved, even if the MNO is not available, and also in the device 100. It will not be acquired if it is lost or stolen. Referring to Figure 6, a block diagram of a portion of the secure removable card 10 of the present invention is illustrated. The card 10 has a non-electrical memory 20 having a first portion 220a that is restricted access by the user and a second portion 220b from which the user can store user data. The MNO can access the first portion 220a and the second portion 220b of the memory 20. The card 10 also has an electrical memory 250 for storing a password provided by the user. The electrical memory retains the password only when power is supplied to the card 10 or device 100. When power is removed, the same password needs to be entered again by the user. The card 10 also includes an encryption circuit 230 that receives the input user data and the output of the electrical memory 250. The encryption circuit encrypts the user data with a password and is then provided with encrypted data to a second portion of the memory 20 for storage. When it is desired to read data from the second portion 220b of the memory 20, the encrypted data is read from the second portion 220b and provided to a decryption circuit 240. The decryption circuit uses the password from the power-dependent memory to decrypt the encrypted data and provide the decrypted user data back to the user.

As can be seen from the foregoing, the card 10 of the present invention is extremely safe. The content stored in a second portion 220b is always encrypted material. Thus, even if the device 100 is lost or stolen and a possible hacker view reads the data in the second portion 220b, the hacker will find only encrypted data. The degree of security is limited only by the complexity of the encryption circuit 130 and the number of cryptographic bits that encrypt the user data. In addition, encryption is only active when power is supplied. If device 100 is turned off and turned back on, a new session begins and the user will need to enter the password again.

Finally, if the user forgets the password, it should be noted that the password is not stored in any part of the memory 20. Therefore, if you forget your password, it is very harmful. One way to alleviate this cruel result is to store a "hind" question or phrase (such as what your favorite pet's name is) in the second memory 220b so that the user can quickly recall the forgotten password. However, this "hinting" can also break the security of the card 10. However, the password itself is never stored in the memory 20.

10. . . Removable card

12. . . Host controller

14. . . Memory controller, controller

16, 90, 91. . . Busbar

20. . . NAND memory, memory

twenty two. . . PSRAM

twenty four. . . Short-range wireless communicator

30. . . Host interface

32. . . Register

50. . . High speed bus

51. . . FIFO circuit

52. . . ARM SC-100 processor

54. . . USB controller circuit

56. . . PHY circuit

60. . . RSA/AES/DES engine

62. . . Arbitration circuit

64. . . SRAM

68. . . Bridge circuit

70. . . Slower bus

72. . . Timer

74. . . Clock generator

76. . . Power management circuit

78. . . Safety monitoring circuit

80. . . Universal asynchronous receiver/transmitter

82. . . Serial peripheral interface circuit, serial peripheral interface

100. . . Wireless communication device, mobile phone

102. . . antenna

104. . . transceiver

106. . . Gateway, network address conversion circuit

108‧‧‧ display

110‧‧‧Mobile network, cellular network, wireless network

112‧‧‧Browser and media player

113‧‧‧USB bus

114‧‧‧USB interface

120‧‧‧Hive in the tower, mobile tower

150‧‧‧Internet

160‧‧‧Computer dock switch

170‧‧‧Internet access device, PC, PC gateway, PC entrance

200‧‧‧Server, mobile network operator server

220a‧‧‧Part 1

220b‧‧‧Part II

230‧‧‧Encryption circuit

240‧‧‧Decryption circuit

250‧‧‧Electrical memory

1 is a diagram of a removable card of the present invention connected to a mobile wireless communication device of the present invention for connection to a mobile network and the Internet.

Figure 2 is a schematic illustration of a removable card of the present invention coupled to a mobile wireless communication device of the present invention.

Figure 3 is a block diagram circuit diagram of the removable card of the present invention.

Figure 4 is a detailed circuit diagram of the processor portion of the removable card of the present invention.

Figure 5 is a diagram of two modes of the mobile wireless communication device using the removable card and the Internet communication of the present invention, wherein in the first mode, the removable card wirelessly communicates with the mobile network through the wireless communication device To access the Internet, and in a second mode, the removable card is connected to a network entry device to connect to the Internet.

Figure 6 is a block diagram of a removable card having security features of the present invention.

10‧‧‧Removable card

100‧‧‧Wireless communication devices, mobile phones

110‧‧‧Mobile network

120‧‧‧Hive in the tower

150‧‧‧Internet

200‧‧‧Server

Claims (9)

A removable card having an electrical connection for connecting to a mobile wireless communication device for use by a user to access a public carrier network to access a network interconnecting the computer network ("Internet The removable card includes: a processor; a non-electrical memory connected to the processor, the non-electrical memory having two parts: a first part and a second part, Wherein the first portion is accessible by the public carrier network provider, the processor restricting the user from accessing the first portion; and wherein the second portion is accessible by the public carrier network provider, the processor Allowing the user to access the second portion to store user data therein; and logic circuitry for encoding the user data to generate encrypted user data, wherein the encrypted user data is stored in the first In the second part, the logic circuit includes an electrical memory for storing a password provided by the user, wherein the password is stored in the electrical memory only when power is supplied to the memory; plus a circuit for receiving user data provided by the user and the output of the power-based memory, and for encrypting the user data with the password from the power-dependent memory to generate encrypted user data, and For storing the encrypted user data in the second portion; and a decryption circuit for receiving the encrypted user data stored in the second portion and the output of the electrical memory, and The encrypted user data is decrypted with the password from the power memory to generate user data. The removable card of claim 1, wherein the division of the first portion and the second portion is changeable. The removable card of claim 1, wherein the non-electrical memory has a program stored internally, configured to be processed by the processor, and operable in one of the following two modes Code: a first mode in which the card is connected to the device, the card stores information wirelessly received by the device from the internet; and a second mode in which the card is connected to a network connected to the internet A gateway device that stores information received from the Internet through the network port device. The removable card of claim 3, wherein in the first mode, the card stores the device wirelessly through a wireless network having a wireless access device connected to the Internet The received information, and in the second mode, the card is directly connected to the internet through the network port device. A mobile wireless communication device for a user to access a public carrier network to access a network ("Internet") interconnecting a computer network, the mobile wireless communication device comprising: a transceiver For communicating wirelessly via a wireless common carrier network; a first processor for controlling communication of the device to connect to the common carrier network; a second processor; connecting to the second processor a non-electrical memory having two parts: a first part and a second part, The first portion is accessible by the public carrier network provider, the second processor restricting the user from accessing the first portion; and wherein the second portion is accessible by the public carrier network provider, and The second processor allows the user to access the second portion to store user data therein; and logic circuitry for encoding the user profile to generate encrypted user data for storage in the second portion The logic circuit includes an electrical memory for storing a password provided by a user, wherein the password is stored in the electrical memory only when power is supplied to the memory; an encryption circuit Receiving user data provided by the user and the output of the power-dependent memory, and encrypting the user data with the password from the power-based memory to generate encrypted user data, and using Storing the encrypted user data in the second portion; and a decryption circuit for receiving the encrypted user data stored in the second portion and the output of the power-dependent memory According to the nonvolatile memory from the body to the password to decrypt the encrypted user data to generate user data. The device of claim 5, wherein the second processor, the non-electrical memory, and the logic circuit are included in a removable card. The device of claim 6, wherein the division of the first portion and the second portion is changeable. The device of claim 7, wherein the non-electrical memory has a code stored internally, configured to be processed by the second processor, and operable in one of the following two modes: a first mode, wherein the card is connected to the transceiver, the card stores information wirelessly received by the device from the internet; and a second mode, wherein the card is connected to a network connected to the internet A mouthwash device that stores information received from the Internet through the network port device. The device of claim 8, wherein in the first mode, the card stores information wirelessly received by the device through a wireless network having a wireless access device connected to the Internet. And in the second mode, the device is directly connected to the internet through the network port device.