Method and device for encrypting data and transmission method and transmission device of encrypted data

A technology for encrypting data and data, which is applied to the public key and key distribution of secure communication, which can solve problems such as difficult mathematical algorithms, difficult security, and difficult data transmission, and achieve high encryption security, high confidentiality, and excellent data compression capabilities and the effect of randomness on cryptographic power

Inactive Publication Date: 2012-08-01
光束科技(北京)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The data confidentiality issue caused by the second reason is the focus of our discussion, such as preventing data from being stolen
However, from the perspective of the historical development process of data encryption and decryption, it is difficult to achieve ideal security simply by relying on the difficulty of the mathematical algorithm used in the encryption process. As long as there is regularity in the encryption process, cracking is a matter of time, and it is difficult to achieve ideal security. Data transmission

Method used

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  • Method and device for encrypting data and transmission method and transmission device of encrypted data
  • Method and device for encrypting data and transmission method and transmission device of encrypted data
  • Method and device for encrypting data and transmission method and transmission device of encrypted data

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Embodiment Construction

[0036] first reference figure 1 the examples. According to this embodiment, we know that data encryption adopts variable and random dynamic encryption means. First, in step 11, the transmission data W to be encrypted is read into the memory or cache of the computer system at one time or in the form of data flow, and W is used as the basis for generating the encryption key. However, the length of W is uncertain, and simply using W as the basis for key generation will make the consumption of computing resources uncertain, thus making the performance of products applying this method unstable. Therefore, this example adopts a relatively Optimizing practices. The method is to set a constant k in advance, randomly intercept the data W' of predetermined length k from the transmission data W, and use W' as the basis of the encryption key. In general applications, the length of W is usually greater than k. At this time, the acquisition of W' is an interception operation, and the sta...

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Abstract

The invention provides a method for encrypting data and a transmission device of encrypted data. The method for encrypting data includes that first, data W' with preset length k is intercepted randomly from transmitting data W; the data W' is used as a seed, a random number r is generated, the r is used as a seed to calculate the quantity p of secret keys at random, and p belongs to [1,C), wherein C is a constant; then the data W' is used as a parameter to generate a public key Ei and a private key Ri, and 1<=i<=p; and finally the public key Ei encodes W in cycling mode to obtain an encryption result Z. The invention further provides a device for encrypting the data, a transmission method of the encrypted data and the transmission device of the encrypted data.

Description

technical field [0001] The invention relates to a data transmission method, in particular to a data encryption method and an encrypted data transmission method. Background technique [0002] In data network, data security is an eternal topic. Taking data transmission as an example, there are two reasons for data transmission insecurity, one is due to objective reasons such as hardware failure, and the other is due to subjective reasons such as human behavior. The data confidentiality problem caused by the second reason is the focus of our discussion, such as preventing data from being stolen. [0003] In order to achieve the confidentiality of the data itself and the transmission process, people have taken many measures, one of which is to encrypt the transmitted data before or during transmission. The public key private key encryption system is a typical representative in the field of data encryption. The system uses a public key and a private key, and the public key can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/30H04L9/08
Inventor 白杰
Owner 光束科技(北京)有限公司
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