vocabulary: unclassified cipher lobby ...

 

unclassified adj.未分类的未列入密级的（国家情报等）未分类[分级]的, 无类别的不保密的; 一般性的

Not placed or included in a class or category:未被置于或包括在等级或类别中的：

unclassified mail. 未分类的邮件

Of, relating to, or being official matter not requiring the application of security safeguards:非保密的：（关于或成为）不需进行安全保护的官方事物的：

unclassified defense documentation. 非保密的国防文件

 

cipher n.密码a method for encrypting information

换位加密法 (Transposition Cipher)

取代加密法 (Substitution Cipher)

旋转替换加密法 (Rotation Substitution Cipher)

乘积加密法 (Product Ciphers)  

 

lobby n.大厅, 休息室, <美>游说议员者 vi.游说议员, 经常出入休息室vt.对(议员)进行疏通

 

scrutiny n.详细审查