Ian Mackay

and S. Vanstone. ð ü úâ ô §tðsýò ¦ á å à üú ¼yðxâ äã à äã ¡ íyâ pã ÷ öõ ô ó ñ ð à Š¿iò iò `íuìëêxuäpã æî ç ¤ ¡ ¥£¢ ã ÷ ÿ 5ô tíhã fyí‚â÷ ¥þã ò Áü tðsÓc¼tðsâ úâ ôü ú § © ¡ ââ â eíèìëxêèäpã æé ç ÷ øé ñ ñ ñ úà rð `ür©ðeûieòrùô iâñ ò â § ¨ ð ¤ ¡ ££¢ § © ð eíèìëêéêuäçp‚ï³ã æ ã 'æã ã ß 9.7 Advanced attacks on hash functions 373 Fact 9.24). However, an iterated hash may certainly be weaker than its compression function (e.g., Example 9.96; Fact 9.37). In…