Patent
Method for encrypting in sections by using uncertain encryption algorithm
Yong Wang
- 04 Apr 2012
15
TL;DR: In this paper, the authors proposed a method for encrypting in sections by using an uncertain encryption algorithm, which adopts the generalized keys to determine the length of each section, the encrypting algorithm of each sections, various keys and parameters.
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Abstract: The invention belongs to a novel encrypting method, in particular relates to a method for encrypting in sections by using an uncertain encryption algorithm The method is used for encrypting the plain text in sections; and the algorithm for encrypting each section is uncertain and secret and determined by generalized keys The method adopts the generalized keys to determine the length of each section, the encrypting algorithm of each section, various keys and parameters Because the algorithm is uncertain, password analyzers do not know where to decrypt, though the analyzers get some information, the information means nothing to decrypt other sections
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Citations
Patent
Network communication encryption method based on contents
Han Zhenhua,Zhixin Hong,Lin Guoxin,Hao Zhang,Yu Jiancheng +4 more
- 02 Jul 2014
TL;DR: In this paper, a network communication encryption method based on contents is proposed, where symmetrical encryption algorithms are respectively arranged at a sending end and a receiving end, and then steps are listed as follows: 1) the sending end confirms an encryption algorithm factor according to the contents in the current data to be sent, then the minimum number of bytes N needed by a secret key of the current encryption algorithm and a corresponding algorithm is selected according to encryption factor, and the current encrypted secret key is obtained via calculation.
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Patent
Method and device for text encryption and decryption
Huang Xin,Wu Lujia +1 more
- 09 Oct 2013
TL;DR: In this article, the authors proposed a method for encryption of a data segment, which consists of dividing the data segment into a plurality of sub-data segments which correspond to the length of a secret key according to the secret key used for encryption.
9
Patent
User password mixing encryption method and system
Chen Chichang,Gao Zuhui,Zeng Xiangxin,Huang Zhenbiao +3 more
- 26 Mar 2014
TL;DR: In this paper, a user password mixing encryption method and system was proposed, which consists of performing an MD5 encryption algorithm on a user account with user characteristics for encryption operation, converting two characters in the middle of ciphertexts encrypted through MD5 into ASCII codes, by use of the remainder obtained through dividing the ASCII codes by 5, selecting a sequence and an encryption algorithm of next mixing encryption operation from a prestored correlation table of remainders and encryption algorithms.
6
Patent
Cryptographic method of large files
Wang Yong,Fu Li,Liu Yonghong,Lin Zhen,Chen Dongmei,Huang Xionghua,Tang Hongwu,Yu Fengjiao,Du Cheng,Wu Siwen +9 more
- 17 May 2017
TL;DR: In this article, the authors proposed a cryptographic method of large files and belongs to the field of information security, which takes into consideration of the huge data of the large files, is not suitable for all the encryption, and different encryption methods have different advantages and disadvantages, so full homomorphic encryption can not solve all of the delegates calculations, and encryption costs a lot, some require the use of misleading encryption and some require only common symmetric encryption.
3
Patent
Large file selective encryption method for reducing write
Wang Yong,Li Fu,Lin Zhen,Chen Dongmei,Wang Huiyong,Huadeng Wang,Tang Hongwu,Liu Yonghong,Fu Xiuwei,Luo Rongli +9 more
- 18 Aug 2017
TL;DR: In this article, the authors proposed a large file encryption method, which adopts the following steps: storing an original plaintext, covering part of the plaintext that is encrypted, and separately storing an encrypted ciphertext.
3
References
Patent
File enciphering method and enciphered file structure in digital media broadcasting system
Xuewen Zeng,Jiawei Gong,Chen Jun,Bei Wu,Erli Niu,Minghui Shan,Muwei Yang +6 more
- 20 Aug 2008
TL;DR: In this article, a method for encrypting the file in the digital medium playing system and the encrypted file structure thereof, wherein, the method comprises the following procedures: (1) dividing the file to a plurality of segments according to the format character of the file; (2) encrypting segment content which needs to be encrypted; (3) including paragraph identifier in each segment; and (4) forming all the key values correlative to the file, to a key list which is used for transmitting to the subscriber.
26
Patent
Multiple uncertainty encryption system with misleading function
Yong Wang
- 31 Aug 2011
TL;DR: In this paper, a multiple uncertainty encryption system with a misleading function was proposed, which aims at attacks such as key stealing, key stealing and brute force attacks and the like, and the system is required to comprise an improved one-time pad mechanism, which can obtain pseudo keys in two ways to confuse the password analyzer.
11
Patent
Storage method and terminal equipment of key parameters
Wenxing Teng,Yanping Wang +1 more
- 25 May 2011
Abstract: The present invention discloses a storage method and terminal equipment of key parameters, wherein the method comprises the steps of: processing original key parameters of a secret key in a piece of terminal equipment according to a predetermined strategy, wherein the predetermined strategy comprises an encryption method and a segment rule; dispersedly storing the processed data by discrete internal storages. Safety and performance of system are improved by the present invention.
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