1.字符串匹配的KMP算法
http://www.ruanyifeng.com/blog/2013/05/Knuth%E2%80%93Morris%E2%80%93Pratt_algorithm.html
2.字符串匹配的Boyer-Moore算法
http://www.ruanyifeng.com/blog/2013/05/boyer-moore_string_search_algorithm.html
3.RSA算法原理(一)
http://www.ruanyifeng.com/blog/2013/06/rsa_algorithm_part_one.html
4.RSA算法原理(二)
http://www.ruanyifeng.com/blog/2013/07/rsa_algorithm_part_two.html