摘要
将Ｈｉｌ加密算法的讨论范围扩大到Ｇａｌｏｉｓ域上的向量空间并把明文字母表增加到足够的长度，可以得到具有优良抗攻击性能的加密算法．此外，以本法为基础。
Discussing Hill encryption in a vector space over a Galois field and increasing the length of plaintext character table, we can get a cryptosystem with good anti-attack property when the order of encrypting matrix is large enough.
