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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
°´Ã¼ÁöÇâ µ¥ÀÌŸº£À̽º ½Ã½ºÅÛ¿¡¼ ÀǵµÇüÀ» ÀÌ¿ëÇÑ ±ÇÇÑ Ãæµ¹ ŽÁö ±â¹ý |
¿µ¹®Á¦¸ñ(English Title) |
A Conflict Detection Mechanism for Authorization using Intention Types in Object-Oriented Database Systems |
ÀúÀÚ(Author) |
¼ÕÅÂÁ¾
±è¿ø¿µ
Á¶¿Ï¼·
Ȳ±Ô¿µ
Tae-Jong Son
Won-Young Kim
Wan-Sup Cho
Kyu-Young Whang
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¿ø¹®¼ö·Ïó(Citation) |
VOL 25 NO. 06 PP. 0881 ~ 0892 (1998. 06) |
Çѱ۳»¿ë (Korean Abstract) |
°´Ã¼ÁöÇâ µ¥ÀÌŸº£À̽º ½Ã½ºÅÛ¿¡¼ ¸¹ÀÌ ¿¬±¸µÇ°í ÀÖ´Â ¹¬½ÃÀû ±ÇÇѺο©(implicit authorization) ¹æ¹ýÀº ¸ðµç °´Ã¼¿¡ ´ëÇÏ¿© ÀÏÀÏÀÌ ±ÇÇÑÀ» ºÎ¿©ÇÏ´Â ¿À¹öÇìµå¸¦ ÁÙÀ̱â À§ÇÑ ¹æ¹ýÀÌ´Ù. ¹¬½ÃÀû ±ÇÇѺο© ¹æ¹ý¿¡¼´Â ±âÁ¸ÀÇ ±ÇÇÑ°ú »õ·ÎÀÌ Ãß°¡µÉ ±ÇÇÑ°£ÀÇ Ãæµ¹(conflict) ¿©ºÎÀÇ È¿À²ÀûÀÎ °Ë»ç°¡ Áß¿äÇÏ´Ù. º» ³í¹®¿¡¼´Â ÀǵµÇü ±ÇÇѺο©(intention type authorization) °³³äÀ» µµÀÔÇÏ¿© ¹¬½ÃÀû ±ÇÇѺο© ÇÏ¿¡¼ ¹ß»ýÇÒ ¼ö ÀÖ´Â ±ÇÇÑ°£ÀÇ Ãæµ¹À» È¿À²ÀûÀ¸·Î ŽÁöÇÏ´Â »õ·Î¿î ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. µ¥ÀÌŸº£À̽º ´ÜÀ§ °èÃþ(database granularity hierarchy)¿¡¼ÀÇ ÀÓÀÇÀÇ ÇÑ ³ëµå n¿¡ Ãß°¡·Î ±ÇÇÑÀ» ºÎ¿©ÇÒ ¶§, ±âÁ¸ ±ÇÇÑ°úÀÇ Ãæµ¹ ŽÁö¸¦ À§ÇÏ¿© ±âÁ¸ÀÇ ¹æ½Ä¿¡¼´Â nÀÇ ÀÚ¼Õ ³ëµå¿¡ ´ëÇÑ ±ÇÇѵéÀ» ÀÏÀÏÀÌ ´ÜÀ§ °èÃþÀ» µû¶ó ³»·Á°¡ Ž»öÇØ¾ß ÇÏ´Â ¾î·Á¿òÀÌ ÀÖ¾ú´Ù. ±×·¯³ª, Á¦¾ÈµÈ ÀǵµÇü ±ÇÇѺο© ±â¹ýÀº ´ÜÀ§ °èÃþÀ» µû¶ó ³»·Á°¡Áö ¾Ê°í ³ëµµ n¿¡¼ Ãæµ¹ ¿©ºÎ¸¦ ¹Ù·Î ÆÇÁ¤ÇÒ ¼ö ÀÖ´Â ÀåÁ¡À» °¡Áø´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Many object-oriented database systems have used the notion of implicit authorization to avoid the overhead caused by explicitly storing all authorizations for each object. In implicit authorization, it is very important to efficiently detect conflicts between existing authorizations and new authorizations to be added. In this article we propose a new notion of intention type authorization and a conflict detection mechanism that can be used with implicit authorization. When we grant an authorization on a node n in the database granularity hierarchy, the existing method is inefficient in determining the conflicts since it needs to examine all authorizations on the descendants of the node n. In contrast, our mechanism has the advantage of detecting the conflicts immediately at the node n where an explicit authorization is to be granted.
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