贯穿本单元,我会频繁使用“漏洞”、“威胁”、“攻击”这些词条。而在继续进行之前有必要解释一下这些词:
漏洞(vulnerability)是指一个组件将系统置于可被开放利用的状态(如:一个网络线缆或协议缺陷)
威胁(threat)表示潜在的安全侵害;
攻击(attack)是指一次侵害的尝试;
当你学习完本单元后,应该能够解释下面所有词条:
active attack - 主动攻击
application layer encryption - 应用层加密
application level gateway - 应用层网关
asymmetric key system - 非对称密钥系统
attack - 攻击
authentication - 认证
availability - 可用性
bastion host - 堡垒主机
block cipher - 分组密码
brute force attack - 暴力攻击
Caesar cipher - 凯撒密码
certification authority - 证书机构
ciphertext - 密文
circuit level gateway - 线路级网关
collision-free - 无碰撞
confidentiality - 保密性
cryptanalysis - 密码分析
cryptography
cryptosystem
decryption
demilitarised zone
denial-of-service attacks
digital signature
encryption
end-to-end encryption
filtering rules
firewall
freshness
hash value
integrity
key
keyspace
keystream
link layer encryption
masquerade attack
message authentication code
message digest
message modification
message replay
network layer encryption
nonce
one-time pad
one-way hash function
passive attack
password
password cracker
plaintext
private key
protocol analyser
proxy server
public key
public key infrastructure
public key system
registration authority
screened sub-net
sequence number
session key
shared key system
sniffer
stream cipher
symmetric key system
threat
time stamp
traffic analysis
Trojan
virus
vulnerability
worm
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