A new related-key square attack on 7-round and 8-round AES-192

作者：Chen, Jie^*; Hu Yupu; Wei Yongzhuang; Liu Shuanggen

来源：Chinese Journal of Electronics, 2008, 17(1): 145-149.

• block cipher
• square attack
• related-key attack
• advanced encryption standard

This paper presents two new methods for related-key Square attack on 7-round and 8-round AES-192, Advanced encryption standard with a 192-bit secret key, by exploiting appropriate related-key differences of AES-192 and weaknesses in their key schedule. This attack on the reduced to 7-round AES-192 just requires about 2(40) chosen plaintexts, demands 2(40) memory, performs 2(96) 7-round AES-192 encryptions. Furthermore, this attack on the reduced to 8-round AES-192 requires about 2(45) chosen plaintexts, demands 2(40) memory, performs 2(167) 8-round AES-192 encryptions.

• 出版日期2008-1
• 单位桂林电子科技大学; 西安电子科技大学; 江西师范大学