信息安全专业英语
    1、cryptography:密码；plaintext明文；ciphertext密文；concealment隐藏；cryptology密码学；
    2、symmetric-key对称密钥；
    Symmetric-key cryptography refers to encryption methods in which both the sender and receiver share the same key(or,less commonly,in which their keys are different,but related in an easily computable way). 
    对称密钥加密是指加密方法，在该方法中，发送者和接收者共享相同的密钥
    3、asymmetric key非对称密钥；Digita1 signatures 数字签名
    RSA and DSA are two of the most popular digital signature schemes
    4、elliptic curve cryptography椭圆曲线密码
    5、Cryptanalysis密码分析；quantum computer量子计算机；
    6、Antivirus software杀毒软件
    Network-attached storage (NAS,网络附加存储): is file-level computer data storage connected to a computer network providing data access to heterogeneous network clients.
    7、Penetration Testing Tools渗透测试工具