Encryption algorithm based on NB-IOT cloud lock communication and verification method thereof
An encryption algorithm and communication technology, applied in the field of encryption algorithm and verification based on NB-IOT cloud lock communication, can solve the problem of reducing the security of user passwords, and achieve the effect of reducing character length, improving security, and facilitating data transmission
Active Publication Date: 2018-10-19
HUITAILONG DECORATION MATERIAL YUEXIU DIST GUANGZHOU
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Problems solved by technology
Although encryption using MD5 method is irreversible, hackers now have a large amount of MD5 original text / cipher text comparison database, which can quickly decipher the MD5 cipher text of commonly used passwords, and the passwords of users in social networking sites are basically common passwords. The security of user passwords is greatly reduced
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[0024] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0025] An encryption algorithm based on NB-IOT cloud lock communication in this embodiment, such as figure 1 As shown, including the process of encrypting the password on the door lock side:
[0026] Step A: Input the password a at the door lock terminal, and the cloud server encrypts the password a for the first time using the MD5 encryption algorithm to obtain the first MD5 value b;
[0027] Step B: Intercept the character string at the end of the first MD5 value b to obtain a character string c;
[0028] Step C: Encrypt the string c for the second time using the MD5 encryption algorithm to obtain the second MD5 value d;
[0029] Step D: Intercept the string at the end of the second MD5 value d to obtain a second string e, which is the ciphertext f;
[0030] Step E: The ciphertext f is saved at...
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The invention relates to an encryption algorithm based on NB-IOT cloud lock communication. The encryption algorithm comprises the process of encrypting a password by a door lock end and is implementedas follows: step A, the door lock end inputs a password a and a cloud server encrypts the password a for the first time by using an MD5 encryption algorithm to obtain a first MD5 value b; step B, a character string at the tail of the first MD5 value b is intercepted to obtain a character string c; step C, the character string c is encrypted for the second time by using an MD5 encryption algorithmto obtain a second MD5 Value d; step D, a character string at the tail of the second MD5 value d is intercepted to obtain a second string e, wherein the second character string e is a ciphertext f; and step E, the ciphertext f is stored in the door lock end. On the basis of two-times encryption and two-times interception, the security of the cloud lock password is improved and thus the cloud lockis protected from being cracked; when the mobile terminal verifies the door lock password, the ciphertext is obtained after the same encryption and then the ciphertext is compared with the ciphertextof the door lock end to obtain a verification result.
Description
technical field [0001] The invention relates to the field of algorithm encryption, in particular to an encryption algorithm based on NB-IOT cloud lock communication and a verification method thereof. Background technique [0002] In the field of the Internet of Things, data transmission between devices and between devices and the cloud is essential, and data security is particularly important, especially for security devices such as door locks, which are an important barrier for family safety. The password of the lock is encrypted, and all transmission processes use ciphertext to improve security. [0003] The existing encryption algorithm usually encrypts the password directly using the MD5 method. Although encryption using MD5 method is irreversible, hackers now have a large amount of MD5 original text / cipher text comparison database, which can quickly decipher the MD5 cipher text of commonly used passwords, and the passwords of users in social networking sites are basica...
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IPC IPC(8): H04L29/08H04L29/06H04L9/32H04L9/06G07C9/00
CPCG07C9/00571H04L9/0643H04L9/3239H04L63/0428H04L63/0876H04L67/10
Inventor 王雷波
Owner HUITAILONG DECORATION MATERIAL YUEXIU DIST GUANGZHOU