標(biāo)準(zhǔn)編號:	GB/T 17964-2008
中文名稱:	信息安全技術(shù) 分組密碼算法的工作模式
英文名稱:	Information technology - Security techniques - Modes of operation for a block cipher
中標(biāo)分類:	L80    數(shù)據(jù)加密
行業(yè)分類:	GB    國家標(biāo)準(zhǔn)
ICS分類:	35.040 35.040    字符集和信息編碼 35.040
發(fā)布機(jī)構(gòu):	中華人民共和國國家質(zhì)量監(jiān)督檢驗(yàn)檢疫總局 中國國家標(biāo)準(zhǔn)化管理委員會(huì)
發(fā)布日期:	2008-6-26
實(shí)施日期:	2008-11-1
標(biāo)準(zhǔn)狀態(tài):	superseded
被新標(biāo)準(zhǔn)替代:	GB/T 17964-2021 信息安全技術(shù) 分組密碼算法的工作模式
被替代日期:	2022-5-1
替代舊標(biāo)準(zhǔn):	GB/T 17964-2000 信息技術(shù) 安全技術(shù) n位塊密碼算法的操作方式
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	25000 字
翻譯價(jià)格(元):	290.0
交付時(shí)間:	付款后 1 個(gè)工作日

1 Scope This standard establishes seven operation modes for block cipher to standardize the application of block cipher. 2 Normative References The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies. GB/T 1988-1998 Information Technology—7-bit Coded Character Set for Information Interchange (eqv ISO/IEC 646:1991) 3 Terms and Definitions For the purposes of this standard, the following terms and definitions apply. 3.1 Terms 3.1.1 block chaining (BC) operation mode one operation mode for block cipher, which is applied to obtain the current ciphertext block by encryption after XOR operation on the current plaintext block with the XOR values of all preceding ciphertext blocks 3.1.2 block cipher also called block cipher algorithm, a kind of symmetric encryption algorithm which encrypts the plaintext divided into blocks of fixed length 3.1.3 block cipher operation mode block cipher operation mode mainly includes electronic codebook (ECB), cipher block chaining (CBC), cipher feedback (CFB), output feedback (OFB) and counter (CTR) operation modes

Foreword i Introduction ii 1 Scope 2 Normative References 3 Terms and Definitions 3.1 Terms 3.2 Definitions 4 Abbreviations and Symbols 5 Electronic Codebook (ECB) Mode 5.1 Variable Definition 5.2 ECB Mode of Encryption 5.3 ECB Mode of Decryption 6 Cipher Block Chaining (CBC) Mode 6.1 Variable Definition 6.2 CBC Mode of Encryption 6.3 CBC Mode of Decryption 7 Cipher Feedback (CFB) Mode 7.1 Parameter Definition 7.2 Variable Definition 7.3 CFB Mode of Encryption 7.4 CFB Mode of Decryption 7.5 Suggestion 8 Output Feedback (OFB) Mode 8.1 Parameter Definition 8.2 Variable Definition 8.3 OFB Mode of Encryption 8.4 OFB Mode of Decryption 9 Counter (CTR) Mode 9.1 Variable Definition 9.2 CTR Mode of Encryption 9.3 CTR Mode of Decryption 10 Block Chaining (BC) Mode 10.1 Variable Definition 10.2 BC Mode of Encryption 10.3 BC Mode of Decryption 11 Output Feedback with a Nonlinear Function (OFBNLF) Operation Mode 11.1 Variable Definition 11.2 OFBNLF Mode of Encryption 11.3 OFBNLF Mode of Decryption Annex A (Normative) Properties of Operation Modes A.1 Properties of the Electronic Codebook (ECB) Operation Mode A.2 Properties of the Cipher Block Chaining (CBC) Operation Mode A.3 Properties of the Cipher Feedback (CFB) Operation Mode A.4 Properties of the Output Feedback (OFB) Operation Mode A.5 Properties of Counter (CTR) Operation Modes A.6 Properties of the Block Chaining (BC) Operation Mode A.7 Properties of the Output Feedback with a Nonlinear Function (OFBNLF) Operation Mode Annex B (Informative) Examples for the Operation Modes B.1 General B.2 ECB Mode B.3 CBC Mode B.4 CFB Mode B.5 OFB Mode B.6 CTR Mode Bibliography