SSL (Secure Sockets Layer) is an encryption-based protocol that was developed to secure data transmitted between a client (such as a web browser) and a web server over the internet or local networks.
SSL is now considered an outdated protocol and has been replaced by TLS (Transport Layer Security), which provides stronger encryption and improved security.
TLS ๐ (Transport Layer Security) is a security protocol that encrypts and authenticates data sent over computer networks like the Internet, ensuring privacy and protecting information from hackers and eavesdroppers.
TLS is used to secure communications between applications, most commonly between web browsers and servers, but also in email, messaging, and other internet services.
- Encryption
- Authentication
- Integrity
๐ TLS Versions โ Pros & Cons
Transport Layer Security (TLS) keeps your data safe in transit but not all versions are created equal. Hereโs how they compare:
โ ๏ธ SSL (SSLv2 / SSLv3)
โ Outdated & insecure
โ Vulnerable to POODLE and other attacks
๐ Should be completely disabled
๐ธ TLS 1.0 & 1.1
โ
Improved over SSL
โ Weak ciphers & outdated encryption
โ Non-compliant with modern standards (PCI DSS, NIST)
๐ Should also be disabled
๐น TLS 1.2
โ
Strong encryption & secure cipher suites
โ
Widely supported across apps, browsers & servers
โ Slightly slower handshake than TLS 1.3
๐ Still the current baseline standard
๐ข TLS 1.3
โ
Strongest encryption, simplified handshake
โ
Faster, more efficient connections
โ
Removes legacy weak algorithms
๐ Best practice: adopt wherever possible
๐Key Takeaway
โข SSL & TLS 1.0/1.1 = ๐ซ Legacy, insecure
โข TLS 1.2 = โ
Secure baseline
โข TLS 1.3 = ๐ Gold standard
SSL is outdated and less secure.
TLS offers stronger encryption, faster connection setup, and improved authentication methods.
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