1、KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 12 26 http:/www.kats.go.krKS X ISO/IEC 18033 1 -1 ： KS X ISO/IEC 18033 1： 2006 (2011 ) X ISO/IEC 18033 1： 2006 ii : ( ) ( ) : (http:/www.standard.go.kr) ： ：2006 12 26 ：2011 12 29 2011-0660 ： ： ( 02-509-72635) (http:/www.kats.go.kr). 10 5 , . X ISO/IEC 1
2、8033 1： 2006 i e . KS X ISO/IEC 18033 1： 2006 . A() KS X ISO/IEC 18033 (cipher) KS X ISO/IEC 18033 “ ” . 1 ： 2 ： 3 ： 4 ： . X ISO/IEC 18033 1： 2006 ii i 1 1. 1 2. 1 3. 3 3.1 3 3.2 3 3.3 4 4. 4 4.1 4 4.2 4 4.2.1 4 4.2.2 (MACs, Message Authentication Codes) 5 4.3 5 5. 5 A() KS X ISO/IEC 18033 (cipher)
3、6 7 8 ICS 35.040 KS X ISO/IEC 1 ： 18033 1： 2006(2011 ) Information technology Security techniques Encryption algorithms Part 1： General 2005 1 ISO/IEC 18033 1 Information technology Security techniquesEncryption algorithms Part 1： General . . ISO IEC . KS X ISO/IEC 18033 encryption systems(ciphers)
4、 KS X ISO/IEC 18033 “ ” . encryption( encipherment) . (plaintext cleartext) (ciphertext) . . . . (Ciphers) . . . KS X ISO/IEC 18033 2 . KS X ISO/IEC 18033 3 KS X ISO/IEC 18033 4 . 1. KS X ISO/IEC 18033 KS X ISO/IEC 18033 . . KS X ISO/IEC 18033 A . 2. . 2.1 (asymmetric cipher) (asymmetric encryption
5、 system) 2.2 (asymmetric cryptographic technique) ( ) ( ) . KS X ISO/IEC 11770 1： 03. 2.3 (asymmetric encipherment system) (asymmetric encryption system) X ISO/IEC 18033 1： 2006 2 2.4 (asymmetric encryption system) KS X ISO/IEC 9798 1： 03. 2.5 (asymmetric key pair) KS X ISO/IEC 9798 1： 2003 2.6 (blo
6、ck) 2.7 (block cipher) , , 2.8 (cipher) (encipherment system) 2.9 (ciphertext) ISO/IEC 10116： 1997 2.10 (cleartext) (plaintext) 2.11 (decipherment) (decryption) 2.12 (decipherment algorithm) (decryption algorithm) 2.13 (decryption) KS X ISO/IEC 11770 1： 2003 2.14 (decryption algorithm) 2.15 (enciphe
7、rment) (encryption) 2.16 (encipherment algorithm) (encryption algorithm) 2.17 (encipherment system) (encryption system) 2.18 (encryption) ( ) , , KS X ISO/IEC 9797 1： 2001. 2.19 (encryption algorithm) 2.20 (encryption system) 3 . , 2.21 (key) ( ： , ) KS X ISO/IEC 11770 1：2003 2.22 (keystream) . , .
8、2.23 n- ( n-bit block cipher) n ISO/IEC 10116： 1997 2.24 (plaintext) ISO/IEC 10116： 1997 2.25 (private key) ISO/IEC 11770 1： 1996 . 2.26 (public key) ISO/IEC 11770 1： 1996 2.27 (secret key) ISO/IEC 11770 3： 1999 2.28 (self-synchronous stream cipher) 2.29 (synchronous stream cipher) X ISO/IEC 18033 1
9、 2006 3 2.30 (stream cipher) . . . 2.31 (symmetric cipher) (symmetric encryption system) 2.32 (symmetric cryptographic technique) . . (MACs, Message Authentication Codes) . , . In a symmetric cipher, the same secret key is used to encrypt and decrypt data. MAC , MAC . 2.33 (symmetric encipherment s
10、ystem) (symmetric encryption system) 2.34 (symmetric encryption system) 3. 3.1 encryption ( encipherment) . . , . . . KS X ISO/IEC 9796, KS X ISO/IEC 9797, KS X ISO/IEC 14888, KS X ISO/IEC 15946 2, KS X ISO/IEC 15946 4 ISO/IEC 19772 . 3.2 . , . , . . , . . , . ( ). . X ISO/IEC 18033 1： 2006 4 . ; (
11、) . , KS X ISO/IEC 18033 2 . KS X ISO/IEC 18033 2 . KS X ISO/IEC 18033 3 KS X ISO/IEC 18033 4 . 3.3 . . , . KS X ISO/IEC 11770 1 . . ( ) . . KS X ISO/IEC 11770 2 . KS X ISO/IEC 11770 3 . . 4. 4.1 (a set of bit strings) (a set of bit strings) . . . , . , . , . KS X ISO/IEC 18033 2 . 4.2 , , . ( ) . n
12、 2 n (permutation) . 4.2.1 n . . ISO/IEC 10116 . n . , . X ISO/IEC 18033 1： 2006 5 , ISO/IEC 10116 . 4.2.2 (MACs, Message Authentication Codes) , . , (MAC) . MAC . KS X ISO/IEC 9797 1 . MAC . 2 MAC . MAC 2 . 4.3 , , ( ) . . , . . , . KS X ISO/IEC 18033 4 . . 2 . , . 5. KS X ISO/IEC 18033 (OSI ) . KS X ISO/IEC 18033 . X ISO/IEC 18033 1： 2006 6 A() KS X ISO/IEC 18033 KS X ISO/IEC 18033 . . ( , .) . . 1. . , . . . 2. . . 3. (licensing) 4. . , . 5. ( ： , ) / 6. . (de facto) . 7. , KS X ISO/IEC 18033 . . a)
