HTTPS 是用 TLS encryption 保护的 HTTP — 它加密浏览器和服务器之间的数据,保护数据免受窃听和篡改,并验证服务器的身份。对于任何处理敏感数据的网站(现在对所有网站都是标准)都是必不可少的。
HTTPS 提供的内容
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HTTPS = HTTP over TLS (Transport Layer Security). It provides:
✓ ENCRYPTION → data in transit is encrypted → eavesdroppers can't read it (passwords,
data, cookies are protected on the network)
✓ INTEGRITY → data can't be tampered with in transit (detect modification)
✓ AUTHENTICATION → verifies the server's identity (via certificates) → you're talking
to the real site, not an impostor (prevents man-in-the-middle)
为什么这很重要
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Without HTTPS (plain HTTP), data travels in PLAINTEXT:
✗ anyone on the network (public WiFi, ISPs, attackers) can READ it → steal passwords,
session cookies, personal data
✗ data can be MODIFIED in transit (inject content, tamper)
✗ no way to verify the server is genuine (impersonation/MITM attacks)
→ HTTPS protects against all of these — essential for security and privacy.
