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Secure Hash Algorithm - Wikipedia
Secure Hash Algorithmï¼ˆã‚»ã‚ãƒ¥ã‚¢ãƒãƒƒã‚·ãƒ¥ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ï¼‰ã€ç•¥ç§°SHAã¯ã€ä¸€ç¾¤ã®é–¢é€£ã—ãŸæš—å·å¦çš„ãƒãƒƒã‚·ãƒ¥é–¢æ•°ã§ã‚ã‚Šã€ã‚¢ãƒ¡ãƒªã‚«å›½ç«‹æ¨™æº–æŠ€è¡“ç ”ç©¶æ‰€ï¼ˆNISTï¼‰ã«ã‚ˆã£ã¦æ¨™æº–ã®ãƒãƒƒã‚·ãƒ¥é–¢æ•°Secure Hash Standardã«æŒ‡å®šã•ã‚Œã¦ã„ã‚‹ã€‚ ï¼ˆ2017å¹´ç¾åœ¨ï¼‰SHA-0ã€SHA-1ã€SHA-2ã€SHA-3ã®4ç¨®é¡žï¼ˆãªã„ã—ã€SHA-0ã¯SHA-1ã«å«ã‚ã¦3ç¨®é¡žï¼‰ã«å¤§åˆ¥ã•ã‚Œã‚‹ã€‚SHA-2ã¾ã§ã¯MD5ãªã©ã¨åŒã˜ Merkleâ€“DamgÃ¥rd constructionï¼ˆen:Merkleâ€“DamgÃ¥rd constructionï¼‰ã®ãƒãƒªã‚¨ãƒ¼ã‚·ãƒ§ãƒ³ã¨è¨€ãˆã‚‹æ§‹é€ ã ãŒã€SHA-3 ã¯å…¨ãåˆ¥ã®æ§‹é€ ã¨ãªã£ã¦ã„ã‚‹ã€‚SHA-2 ä»¥é™ã¯ãƒãƒƒã‚·ãƒ¥ã‚µã‚¤ã‚ºã‚’å¤§ããã—ãŸãƒãƒªã‚¨ãƒ¼ã‚·ãƒ§ãƒ³ãŒç”¨æ„ã•ã‚Œã¦ãŠã‚Šã€SHA-2ã«ã¯ã€SHA-224ã€SHA-256ã€SHA-384ã€SHA-512ã€SHA-512/224ã€SH
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MD5 - Wikipedia
MD5ãƒãƒƒã‚·ãƒ¥ã¯ã€ä»¥ä¸‹ã®æ“¬ä¼¼ã‚³ãƒ¼ãƒ‰ã§æ›¸ã„ãŸã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã§ç®—å‡ºã•ã‚Œã‚‹ã€‚å€¤ã¯ã™ã¹ã¦ãƒªãƒˆãƒ«ã‚¨ãƒ³ãƒ‡ã‚£ã‚¢ãƒ³ã¨ã™ã‚‹ã€‚ function md5 (messageÂ : array[0..*] of bit) returns array[0..15] of unsignedInt8 is //å·¦ãƒãƒ¼ãƒ†ãƒ¼ãƒˆé–¢æ•° function leftRotate (xÂ : unsignedInt32, cÂ : integer range 0..31) returns unsignedInt32 is begin leftRotateÂ := (x leftShift c) bitOr (x rightShift (32-c)) endÂ ; function makeK (iÂ : integer range 0..63) returns unsignedIt32 is begin makeKÂ := floor(232Ã—ab
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Secure Hash Algorithm - Wikipedia

MD5 - Wikipedia

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