Secure Socket Layer

Definition

Secure Socket Layer (SSL) is a standard security technology that establishes an encrypted link between a web server and a browser, ensuring that all data transmitted remains private and integral. SSL works by using a combination of public and symmetric key encryption to secure communications over networks, which is crucial in the context of online transactions and sensitive data exchange.

5 Must Know Facts For Your Next Test

1. SSL was developed by Netscape in the mid-1990s to secure internet communications, particularly for e-commerce transactions.
2. The technology works by establishing an SSL handshake, during which the server and client exchange keys to create a secure session.
3. Websites using SSL can be identified by 'https://' in their URL, indicating that the connection is encrypted and secure.
4. SSL certificates are issued by trusted Certificate Authorities (CAs), which verify the identity of the website owner to ensure safe connections.
5. Although SSL has largely been replaced by TLS due to vulnerabilities, many people still refer to it as SSL when discussing encrypted connections.

Review Questions

• Explain how Secure Socket Layer contributes to secure online transactions.
  • Secure Socket Layer (SSL) plays a crucial role in securing online transactions by encrypting data exchanged between a web server and a browser. This encryption prevents unauthorized access to sensitive information, such as credit card details or personal data, ensuring that only the intended recipient can read it. The SSL handshake establishes a secure session, enabling safe communication that builds trust between customers and businesses during online transactions.
• Discuss the differences between SSL and its successor, Transport Layer Security (TLS).
  • While Secure Socket Layer (SSL) and Transport Layer Security (TLS) both aim to secure internet communications through encryption, TLS is the more advanced protocol that addresses many vulnerabilities found in SSL. TLS provides improved security features, such as stronger encryption algorithms and better authentication methods. Although SSL was widely used in the past, TLS has become the standard for secure communications on the web, with most modern systems utilizing TLS instead of SSL.
• Evaluate the impact of Secure Socket Layer on user trust in e-commerce and online services.
  • The implementation of Secure Socket Layer (SSL) has significantly boosted user trust in e-commerce and online services by providing a layer of security that protects sensitive information during transmission. With visible indicators like 'https://' and padlock icons in browsers, users are reassured that their data is safeguarded against potential threats. This increased confidence has facilitated the growth of online shopping and digital transactions, highlighting SSL's importance in fostering a secure internet environment where users feel safe sharing their personal information.

Related terms

Transport Layer Security: Transport Layer Security (TLS) is the successor to SSL, providing enhanced security for data transmitted over the internet.

Encryption: Encryption is the process of converting information or data into a code, especially to prevent unauthorized access.

Public Key Infrastructure: Public Key Infrastructure (PKI) is a framework for creating a secure method for exchanging information based on public key cryptography.