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Ç¥ÁعøÈ£ TTAE.IF-RFC4493 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2007-12-26 ÃÑÆäÀÌÁö 29
ÇѱÛÇ¥Áظí AES-CMAC ¾Ë°í¸®Áò
¿µ¹®Ç¥Áظí AES-CMAC Algorithm
Çѱ۳»¿ë¿ä¾à º» Ç¥ÁØÀº 128ºñÆ® ºí·Ï ¾ÏÈ£ ¾Ë°í¸®Áò AES¸¦ ÀÌ¿ëÇÏ¿© CMACÀ» »ý¼ºÇÏ´Â AESCMAC
¾Ë°í¸®ÁòÀ» ±â¼úÇÑ °ÍÀÌ´Ù. ±âÁ¸ÀÇ CBC-MAC(Cipher Block Chaining – Message
Authentication Code)Àº °¡º¯ ±æÀÌÀÇ ¸Þ¼¼Áö¿¡ ´ëÇÏ¿© ¾ÈÀüÇÏÁö ¾Ê´Ù°í ¾Ë·ÁÁ® ÀÖ´Ù. º»
Ç¥ÁØ¿¡¼­´Â °¡º¯ ±æÀÌÀÇ ¸Þ¼¼Áö¿¡ ´ëÇÏ¿©¼­ ¾ÈÀüÇÑ MACÀ» »ý¼ºÇÏ´Â CMAC ¾Ë°í¸®ÁòÀ»
¼³¸íÇÑ´Ù. AES-CMAC »ý¼º ¹æ¹ý ¹× °ËÁõ ¹æ¹ýÀ» ¼³¸íÇÏ°í, »ý¼º ¹× °ËÁõ ½Ã »ç¿ëµÇ´Â
¼­ºêÅ° »ý¼º ¹æ¹ý ¹× º¸¾È °í·Á »çÇ× ±×¸®°í Å×½ºÆ®º¤Å͸¦ Æ÷ÇÔÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à CMAC (Cipher-based Message Authentication Code) is a keyed hash function that is
based on a symmetric key block cipher, such as AES (Advanced Encryption Standard).
It is well-known that the CBC-MAC is not secure when message lengths can vary. The
AES-CMAC is an improvement of the basic CBC-MAC to provide the security when
message lengths can vary. This standard includes AES-CMAC generation/verification
procedures, sub-key generation algorithm, security consideration and test vectors.
±¹Á¦Ç¥ÁØ IETF RFC 4493
°ü·ÃÆÄÀÏ TTAE.IF-RFC4493.pdf TTAE.IF-RFC4493.pdf            

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