Embedded encryption method based on high-order second-order logistic mapping and embedded encryption device based on high-order second-order logistic mapping

Abstract

The invention discloses an embedded encryption method based on high-order second-order logistic mapping and an embedded encryption device based on the high-order second-order logistic mapping. A power supply source module provides a power supply for various modules of the device; a data AD sampling module samples input data to be enciphered to provide an initial value changed with a plaintext for a key driving module; the key driving module receives the sampled data of the data AD sampling module, generates a key changed with the sampled data and transmits the key to a microcontroller encryption module; the microcontroller encryption module chaotically enciphers the data to be enciphered and the key and transmits the enciphered data to a product; and an embedded interface driving module provides an interface with a product. The embedded encryption method disclosed by the invention can carry out a high-order second-order encryption embedding mode through a logistic mapping core, thereby realizing that a complex variable key is generated through high-order treatment by encrypting multiple iterations. The embedded encryption device disclosed by the invention can be embedded into various electronic products to enhance the safety of the electronic products.

Description

technical field

[0001] The invention belongs to the technical field of information security, and in particular relates to an embedded encryption method and device based on high-order second-order logistic (logic) mapping. Background technique

[0002] The general logistic map encryption method mainly relies on the initial value x of the map 0 and u (algorithm key) to produce two binary series A j and D j , and combine the two binary series A j and D j It is regarded as a subkey of this cryptosystem to realize encryption. However, logistic map encryption method analysis and discovery series A j and D j Both are completely determined by the logistic map and have nothing to do with factors such as plaintext and ciphertext. In this way, when the attacker obtains any plaintext A j and D j After that, you can use this A j and D j Directly attacking the ciphertext encrypted with the same key will not only cause hidden dangers in information security, but also become a se...

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