| Crypt :: Rijndael. CRYPT :: CBC ȣȯ RIJNDAEL ¾ÏÈ£È ¸ðµâ. |
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Crypt :: Rijndael. ¼øÀ§ ¹× ¿ä¾à
- ƯÇã:
- Perl Artistic License
- °Ô½ÃÀÚ À¥»çÀÌÆ®:
- http://search.cpan.org/~bdfoy/
Crypt :: Rijndael. ű×
Crypt :: Rijndael. ¼³¸í
Crypt :: CBC ȣȯ Rijndael ¾ÏÈ£È ¸ðµâ. Crypt :: RijndaelÀº Crypt :: CBC ȣȯ Rijndael ¾ÏÈ£È ¸ðµâÀÔ´Ï´Ù. ½Ä ³ëÇÁ ½º Drust :: Rijndael; # Keysize ()´Â 32ÀÌÁö¸¸ 24 ¹× 16µµ °¡´ÉÇÕ´Ï´Ù. # blocksize ()´Â 16 $ cipher = crypt :: Rijndael-> new ( "a"x 32, crypt :: rijndael :: mode_cbc ()); $ cipher-> set_iv ($ IV); $ crypted = $ cipher-> ¾ÏÈ£È ($ plaintext); # - ¶Ç´Â - $ plaintext = $ cipher-> decrypt ($ crypted);ÀÌ ¸ðµâÀº °í±Þ ¾ÏÈ£È Ç¥ÁØÀ¸·Î ¼±ÅÃµÈ RIJNDAEL ¾ÏÈ£¸¦ ±¸ÇöÇÕ´Ï´Ù .KEYSIZE´Â 32 (¹ÙÀÌÆ®) ÀÎ Å° Å©±â¸¦ ¹ÝȯÇÕ´Ï´Ù. Rijndael Cipher´Â ½ÇÁ¦·Î 16, 24 ¶Ç´Â 32 ¹ÙÀÌÆ®ÀÇ Å° ¼¼·ÃÀ» Áö¿øÇÏÁö¸¸,À̸¦ ¾ÏÈ£È :: CBC.BLOCKSIZE ¿¡ÀÌ ¹®Á¦¸¦ ÇØ°áÇÒ ¼öÀÖ´Â ¹æ¹ýÀº ¾øÁö¸¸ ¾Ë°í¸®ÁòÀº ½ÇÁ¦·Î ¾î¶² ºí·Ï Å©±â¸¦ Áö¿øÇÏ´ÂÁö 6 ¹ÙÀÌÆ® (128 ºñÆ®)ÀÔ´Ï´Ù. ¿ì¸® ¹ÙÀÌÆ®ÀÇ ¿©·¯ ¹è¼ö. 128 ºñÆ®´Â AES ÁöÁ¤ ºí·Ï Å©±â À̹ǷÎÀÌ ¸ðµç °ÍÀÌ Áö¿øµË´Ï´Ù. $ cipher = crypt :: Rijndael-> new ($ key ) »õ·Î¿î crypt :: rijndael ¾ÏÈ£ °³Ã¼¸¦ ¸¸µì´Ï´Ù. ÁÖ¾îÁø Å° (¾î´À °ÍÀÌ 128, 192 ¶Ç´Â 256 ºñÆ® ±æÀÌ ¿©¾ßÇÕ´Ï´Ù). Ãß°¡ $ mode Àμö´Â mode_ecb (ÀüÀÚ ÄÚµåºÏ ¸ðµå, ±âº»°ª), mode_cbc (¾ÏÈ£ ºí·Ï üÀÎ, Crypt :: CBC°¡ ¼öÇàÇÏ´Â °Í°ú µ¿ÀÏ), mode_cfb (128 ºñÆ® ¾ÏÈ£ Çǵå¹é), mode_ofb (128- ºñÆ® Ãâ·Â Çǵå¹é) ¶Ç´Â mode_ctr (Ä«¿îÅÍ ¸ðµå). ECB ¸ðµå´Â ¸Å¿ì ¾ÈÀüÇÏÁö ¾Ê½À´Ï´Ù (¿Ö ¾Ïȣȿ¡ Ã¥À» ÀÐÀ¸½Ê½Ã¿À!). µû¶ó¼ CBC ¸ðµå¸¦ »ç¿ëÇؾßÇÕ´Ï´Ù. $ cipher-> set_iv ($ IV) ÀÌ°ÍÀº üÀÎ ¸ðµå¿¡¼ »ç¿ëÇÏ´Â Ãʱ⠰ª º¤Å͸¦ º¯°æÇÒ ¼ö ÀÖ½À´Ï´Ù. ...¿¡ ECB ¸ðµå¿Í °ü·ÃÀÌ ¾ø½À´Ï´Ù. $ cipher-> ¾ÏÈ£È ($ µ¥ÀÌÅÍ)´Â µ¥ÀÌÅ͸¦ ¾ÏÈ£ÈÇÕ´Ï´Ù. $ DATAÀÇ Å©±â´Â ºí·Ï »çÀÌÁî (16 ¹ÙÀÌÆ®)ÀÇ ¹è¼ö ¿©¾ßÇÕ´Ï´Ù. ±×·¸Áö ¾ÊÀ¸¸éÀÌ ±â´ÉÀº CROAKÀÔ´Ï´Ù. ±× ¿Ü¿¡µµ (°ÅÀÇ) ±æÀÌ°¡ µÉ ¼ö ÀÖ½À´Ï´Ù. $ cipher-> decrypt ($ data)´Â $ µ¥ÀÌÅ͸¦ Çص¶ÇÕ´Ï´Ù. ¿ä±¸ »çÇ× : ¡¤ Perl.
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