GM/T 0001.2-2012 English PDF
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GM/T 0001.2-2012: ZUC stream cipher algorithm - Part 2: The ZUC-based confidentiality algorithm
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GMT0001.2-2012GM CRYPTOGRAPHY INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 35.040 L 80 RECORD NO.. 36823-2012 ZUC stream cipher algorithm - Part 2. The ZUC-based confidentiality algorithm Issued on: MARCH 21, 2012 Implemented on: MARCH 21, 2012 Issued by. State Cryptography Administration of the People’s Republic of China 3. No action is required - Full-copy of this standard will be automatically & immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3 1 Scope .. 4 2 Normative references ... 4 3 Terms and conventions ... 4 4 Symbols and abbreviations ... 5 5 Description of algorithm ... 5 Annex A (Informative) Algorithmic calculation examples ... 8 Bibliography ... 10Foreword
GM/T 0001, ZUC stream cipher algorithm, comprises three parts. -- Part 1. Description of algorithm; -- Part 2. The ZUC-based confidentiality algorithm; -- Part 3. The ZUC-based integrity algorithm. This Part is Part 2 of GM/T 0001. This Part of GM/T 0001 is drafted in accordance with the rules given in GB/T 1.1-2009. This Part is maintained consistent with the 3GPP LTE confidentiality and integrity algorithms standard, 128-EEA3 specification (ETSI/SAGE TS 35.221). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuer of this document shall not be held responsible for identifying any or all such patent rights. Annex A to this Part is informative. This Part was proposed by and shall be under the jurisdiction of State Cryptography Administration. The drafting organizations of this Part. Institute of Software Chinese Academy of Sciences, The Data Assurance and Communication Security Research Center of Chinese Academy of Sciences. The main drafters of this Part. Feng Dengguo, Lin Dongyue, Feng Xiutao, Zhou Chunfang. ZUC stream cipher algorithm - Part 2. The ZUC-based confidentiality algorithm1 Scope
This Part of GM/T 0001 describes ZUC-based confidentiality algorithm. The confidentiality algorithm applies to encryption and decryption in 3GPP LTE communication. This Part can be used as guidance for the development, testing and use of ZUC-based confidentiality algorithm related products.2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to This Standard. GM/T 0001.1-2012, ZUC stream cipher algorithm - Part 1. Description of the algorithm3 Terms and conventions
For the purposes of this Part, the following terms and conventions apply. 3.1 bit Binary characters 0 and 1 are called bits. 3.2 byte Bit string which comprises 8 bits, is called byte. 3.3 word Bit strings which comprise not less than 2 (including 2) bits, are called words. This Part mainly adopts 31-bit words and 32-bit words. 3.4 word representation The words of this Part are represented in the decimal format by default. When the words are represented in other systems, indicators are always added before or after word representations. For example. the prefix 0x indicates that the word is represented in the hexadecimal format; and the suffix subscript 2 indicates that the word is represented in the binary format. 2.5 bit ordering This Part specifies that the most significant bit is located on the leftmost of word representations; and that the least significant bit is located on the rightmost of word representations.4 Symbols and abbreviations
4.1 Operation notations Bitwise exclusive-OR operation Concatenation of character strings The minimum integer not less than x 4.2 Abbreviations The following abbreviations apply to this Part. CK Key to ZUC-based confidentiality algorithm KEY Initial key to ZUC IV Initial vector of ZUC IBS Input bit stream OBS Output bit stream5 Description of algorithm
5.1 Input and output of algorithm ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
