Method for encrypting fixed-length data capable of carrying effective service information in transmission
A business information, fixed-length technology, applied in the field of data encryption and decryption, can solve problems such as the inability to meet readable strings, and achieve the effect of increasing the difficulty of cracking and having obvious effects.
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[0024] Concrete embodiment (taking the string length after encryption as 32 bits as an example):
[0025] A fixed-length data encryption method capable of carrying effective business information transmission, comprising the following steps:
[0026] S1: Construct the original string to be encrypted with a fixed length; if the length of the encrypted string is required to be 32 digits, and the decimal system is converted to 61, the maximum length of the final original string cannot exceed 57 digits. It can ensure that the length of the encrypted string is 32 bits; when constructing the original string, it is necessary to pre-set the storage bit of business information, time stamp and random code, for example, the original string in Table 1 below:
[0027] Table 1 Original string
[0028]
[0029] S2: Fill the business information data into the specified data bits of the original string to obtain the business information string; take the business information as an 11-digit m...
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