Base64 extended coding method and system based on high-frequency character substitution algorithm

An extended coding, high-frequency technology, applied in computing, electrical digital data processing, special data processing applications, etc., can solve the problems of increased coding, large space occupation, low efficiency, etc., to achieve good compatibility, simple algorithm, and improved economy. sexual effect
CN110569487AActive Publication Date: 2019-12-13INTEGRATED ELECTRONICS SYST LAB
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INTEGRATED ELECTRONICS SYST LAB
Publication Date
2019-12-13

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Abstract

The invention provides a Base64 extended coding method and system based on a high-frequency character substitution algorithm. On the basis that the original Base64 transcoding expansion ratio is 1 / 3,high-frequency character replacement is adopted, and if the expansion ratio is 20% and far smaller than 33.3% according to the 40% replacement rate, for data transcoding of a large data volume, the conversion economy can be greatly improved, and the expansion space is effectively saved; according to the method for changing Base64 coding shift transcoding, conversion is carried out by adopting a D* 64 + d algorithm, so that each code is independent of other codes, and the phenomenon that subsequent codes cannot be recovered due to abnormity is avoided; according to the method, the conversion range covers all ASCII data domains, the method is suitable for binary data transcoding under various applications, and the method only relates to one conversion algorithm, is irrelevant to realized languages and platforms, and is good in compatibility; end complement is not needed, and the algorithm is simpler.
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Description

technical field

[0001] The invention relates to the technical field of character encoding, in particular to a Base64 extension encoding method and system based on a high-frequency character substitution algorithm. Background technique

[0002] As we all know, any data in the computer is stored and calculated according to binary data. In order to facilitate information exchange between different hosts on the network, ASCII code is uniformly adopted. ASCII codes 0-31 and 127 are invisible characters. When exchanging data on the network, it often needs to pass through multiple routing devices. Since different devices process characters differently, those invisible characters may be mishandled, which is not conducive to transmission.

[0003] Such problems are also encountered in daily applications. Some application scenarios only apply to ASCII printable characters. For example, in traditional mail systems, ASCII control characters cannot be sent by mail. Therefore, it is ver...

Claims

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