Short message content interpolation-preventing method

A short message, anti-tampering technology, applied in the direction of messages/mailboxes/notifications, safety devices, electrical components, etc.

A short message, anti-tampering technology, applied in the direction of messages/mailboxes/notifications, safety devices, electrical components, etc.

CN101072377AInactive Publication Date: 2007-11-14FUJIAN XINO COMM TECH
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  • Short message content interpolation-preventing method
  • Short message content interpolation-preventing method
  • Short message content interpolation-preventing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] Please refer to Fig. 1, the present invention is a kind of short message content anti-tampering method, comprises following two steps:

[0047] 1. When the sender sends a short message (SMS-SUBMIT), send a digitally signed short message;

[0048] 2. After receiving the digitally signed short message (SMS-DELIVER), the receiving end checks the correctness of the digital signature.

[0049] Referring to Figure 2, the step 1 specifically includes the following steps:

[0050] 11. The user enters a short message at the sending end;

[0051] 12. Calculate the digital signature;

[0052] 13. The sender places the digital signature at the beginning of the SMS;

[0053] 14. The sending end sends out the short message with the digital signature added (SMS-SUBMIT).

[0054] Referring to Figure 3, the step 2 specifically includes the following steps:

[0055] 21. The recipient receives the short message, and the beginning of the short message contains a digital signature with...

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Abstract

The method includes following steps: (1) when sending short message, the sending end sends short message with digital signature; (2) after receiving short message with digital signature, the receiving end checks correctness of the digital signature. Length of short message inputted is not limited. Using form of algorithm + secret key, the method possesses high security. Through secret key, the method guarantees security of signature even if algorithm is leaked. Features are: wide acceptable secret keys usable to the algorithm, convenience for remembrance, easy for maintaining secret key, high operating rate, and low requirement on hardware of terminal. The invention is suitable to embedded type terminal such as handset.

Description

怐Technical field怑 [0001] The invention relates to the technical field of mobile communication, in particular to a tamper-proof method for short message content. 怐Background technique怑 [0002] In modern society, mobile phones have become an indispensable communication tool, and SMS (shortMessageService: short message service) is widely used due to its advantages of being fast and cheap. [0003] SMS is a store-and-forward non-real-time message service, and its sending and receiving are divided into the following five steps: [0004] 1. The sender sends a message (SMS-SUBMIT) [0005] The message sender sends an SMS-SUBMIT message to SMSC (Short Message Servicecenter: short message service center). [0006] 2. SMSC notification sender (SMS-SUBMIT-REPORT) [0007] The SMSC sends an SMS-SUBMIT-REPORT message to notify the sender of the message. [0008] 3. SMSC sends a message (SMS-DELIVER) [0009] SMSC sends SMS-DELIVER message to message receiver. [0010] 4. The recip...

Claims

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Application Information

Patent Timeline
14 Nov 2007
Publication
CN101072377A
IPC
H04Q7/22; H04Q7/38; H04Q7/32; H04W4/14; H04W12/02; H04W12/033; H04W12/106
Inventors
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