古典密码

可选择进行维吉尼亚加解密、希尔加解密、行置换的乘积加解密、仿射加解密

并可选择下列统计计算：

1．不同n值下维吉尼亚密码体制的频率统计

2．不同n值下维吉尼亚密码体制的重合指数计算

3．不同n n值下希尔密码体制的频率统计

4．不同n n值下希尔密码体制的重合指数计算

5．不同(m,n,t)下维吉尼亚和行置换的乘积密码体制的频率统计

6．不同(m,n,t)下维吉尼亚和行置换的乘积密码体制的重合指数计算

7．对于同一明文，给出维吉尼亚密码体制、希尔密码体制、维吉尼亚和行置换的乘积密码体制、Rotor机的频率统计结果

-Virginia may choose to encrypt and decrypt, Gilgado decrypt, encrypt and decrypt the product line of replacement, affine encryption and decryption

Can choose the following statistical computing:

1. Under different values of n the frequency of Statistics Virginia cryptosystem

2. Under different values of n coincide Virginia cryptography Index

3. Under different values of n 　n Hill Cryptosystem frequency statistics

4. Under different values of n 　n coincidence Hill cryptosystem Index

5. Different (m, n, t) under the Virginia and the replacement of the product line frequency statistics cryptosystem

6. Different (m, n, t) under the replacement of the product line of Virginia and the coincidence index calculation code system

7. For the same plaintext, given Virginia cryptosystem, cryptography Hill, Virginia, and the product code line replacement system, Rotor machine frequency statistics