â å¼ H(K XOR opad, H(K XOR ipad, text)) ipad = ãã¤ãå¤ 0x36 ã 64 åç¹°ãè¿ããæåå opad = ãã¤ãå¤ 0x5C ã 64 åç¹°ãè¿ããæåå 1 #!/usr/bin/perl 2 3 use strict; 4 use warnings; 5 6 use Digest::MD5 qw(md5_hex); 7 use Digest::SHA1 qw(sha1_hex); 8 use Digest::HMAC_MD5 qw(hmac_md5_hex); 9 use Digest::HMAC_SHA1 qw(hmac_sha1_hex); 10 use Benchmark; 11 my $count = 1000000; 12 my $sec_key = 'oniichan doite soitsu korosenai akosan
H. Krawczyk IBM M. Bellare UCSD R. Canetti IBM 1997å¹´ 2æ HMACï¼ ã¡ãã»ã¼ã¸èªè¨¼ã®ããã®éµä»ããã·ã³ã° (HMAC: Keyed-Hashing for Message Authentication) ãã®ã¡ã¢ã®ä½ç½®ä»ã ãã®ã¡ã¢ã¯ãã¤ã³ã¿ã¼ãããã»ã³ãã¥ããã£ã«å¯¾ãã¦æ å ±ãæä¾ãããã®ã§ããããã®ã¡ã¢ã¯ãä½ãã¤ã³ã¿ã¼ãããã®æ¨æºãè¦å®ãããã®ã§ã¯ãªãããã®ã¡ã¢ã®é å¸ã«å¶éã¯ãªãã è¦æ¨ ãã®ææ¸ã§ã¯ãæå·ããã·ã¥é¢æ°ã使ç¨ãã¦ã¡ãã»ã¼ã¸èªè¨¼ãè¡ãªãä»çµã¿ã§ãã HMAC ã«ã¤ãã¦è¨è¿°ãããHMAC ã¯ãMD5 ã SHA-1 ãªã©ã®å復æå·ããã·ã¥é¢æ°ãç§å¯ã®å ±æéµã¨çµã¿åããã¦ä½¿ç¨ãããHMAC ã®æå·ã¨ãã¦ã®å¼·åº¦ã¯ã使ç¨ãã¦ããããã·ã¥é¢æ°ã®ããããã£ã«ä¾åããã 1.ã¯ããã« ä¿¡é ¼ã§ããªãã¡ãã£ã¢ä¸ãä¼éããèç©ãããæ å ±ã®
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