·¡Ý£³£µ
¥»¥¥å¥ê¥Æ¥£¤Ë´Ø¤¹¤ëµ½Ò¤Î¤¦¤Á¡¢ºÇ¤âŬÀڤʤâ¤Î¤Ï¤É¤ì¤«¡£
¡¡¡TLS¤Ç¤Ï¸ø³«¸°°Å¹æÊý¼°¤ÇÁ÷¿®¥Ç¡¼¥¿¤ò°Å¹æ²½¤¹¤ë¤³¤È¤Ë¤è¤Ã¤ÆÅðÄ°¤òËɤ¤¤Ç¤¤¤ë¡£
¢¡¡°°Õ¤¢¤ë¥½¥Õ¥È¥¦¥§¥¢¤ÎÁí¾Î¤ò¥¹¥Ñ¥¤¥¦¥§¥¢¤È¸Æ¤Ó¡¢¼«¸ÊÁý¿£¤È´¶À÷¤ò·«¤êÊÖ¤¹¥×¥í¥°¥é¥à¤Ç¤¢¤ë¡£
£¡¡¶¦Ä̸°°Å¹æÊý¼°¤ÎÂåɽŪ¤Ê¥¢¥ë¥´¥ê¥º¥à¤ËDES (Data Encryption Standard) ¤¬¤¢¤ê¡¢DES¤ò»°½Å¤Ë·«¤êÊÖ¤·¶¯ÅÙ¤ò¶¯¤á¤¿3DES¤¬Æ³Æþ¤µ¤ì¤Æ¤¤¤ë¡£
¤¡¡¥Ç¥£¥¸¥¿¥ë½ð̾¤ÎÂåɽŪ¤ÊÅŻҽð̾¥¢¥ë¥´¥ê¥º¥à¤ËRSA (Rivest Shamir Adleman) ¤¬¤¢¤ê¡¢Êƹñ¹ñΩɸ½àµ»½Ñ¸¦µæ½ê¤Ë¤è¤Ã¤ÆÄ󾧤µ¤ì¤¿¡£
¥¡¡¥Õ¥£¥Ã¥·¥ó¥°º¾µ½¤È¤Ï¡¢µ¶¥µ¥¤¥È¤Ë¸ýºÂÈÖ¹æ¤ä¥í¥°¥¤¥ó¥Ñ¥¹¥ï¡¼¥É¤Ê¤É¤òÆþÎϤµ¤»¤ÆÅð¤ß¼è¤ë¤³¤È¤«¤é¡¢±Â¤Ë¿©¤¤¤Ä¤¯µû¤òÄà¤ê¾å¤²¤ë¤È¤¤¤¦°ÕÌ£¤Ç¡¢Fishing¤Îʸ»ú¤òÅö¤Æ¤Æ¤¤¤ë¡£