What is HTTPS?
HTTPS (Hypertext Transfer Protocol over Secure Socket Layer, or HTTP over SSL) is a web protocol developed by Netscape.
One can say: HTTPS = HTTP + SSL
HTTPS uses Secure Socket Layer (SSL) as a sublayer under its regular HTTP application layering.
Need of HTTPS:
Hypertext Transfer Protocol (HTTP) is a protocol for transmitting and receiving information across the Internet. HTTP serves as a request and response procedure that all agents on the Internet follow so that information can be rapidly, easily, and accurately disseminated between servers, which hold information, and clients, who are trying to access it. You normally use HTTP when you are browsing the web, its not secure, so someone can eavesdrop on the conversation between your computer and the web server. In many cases, clients may be exchanging confidential information with a server, which needs to be secured in order to prevent unauthorized access. For this reason, https, or secure http, was developed by Netscape corporation to allow authorization and secured transactions.
How HTTPS works?
For HTTPS connection, public key and signed certificates are required for the server.
When using an https connection, the server responds to the initial connection by offering a list of encryption methods it supports. In response, the client selects a connection method, and the client and server exchange certificates to authenticate their identities. After this is done, both parties exchange the encrypted information after ensuring that both are using the same key, and the connection is closed. In order to host https connections, a server must have a public key certificate, which embeds key information with a verification of the key owner's identity. Most certificates are verified by a third party so that clients are assured that the key is secure.
In other words, we can say, HTTPS works similar to HTTP but SSL adds some spice in it.
HTTP includes the following actions:
1. The browser opens a TCP connection.
2. The browser sends a HTTP request to the server
3. The server sends a HTTP response to the browser. 4. The TCP connection is closed.
SSL will include the following actions:
1. Authenticate the server to the client.
2. Allow the client and server to select the cryptographic algorithms, or ciphers, that they both support.
3. Optionally authenticate the client to the server.
4. Use public-key encryption techniques to generate shared secrets.
5. Establish an encrypted SSL connection.
6. Once the SSL connection is established the usual transfer of HTTP requests will continue.
Where should https be used?
HTTPS should be used in Banking Websites, Payment Gateway, Shopping Websites, Login Pages, Emails (Gmail offers HTTPS by default in Chrome browser) and Corporate Sector Websites. For example:
PayPal: https://www.paypal.com
Google AdSense: https://www.google.com/adsense/
Beware of using Credit Card Numbers on Internet: If a website ever asks you to enter your credit card information, you should automatically look to see if the web address begins with https://. If it doesn't, there's no way you're going to enter sensitive information like a credit card number!
HTTPS (Hypertext Transfer Protocol over Secure Socket Layer, or HTTP over SSL) is a web protocol developed by Netscape.
One can say: HTTPS = HTTP + SSL
HTTPS uses Secure Socket Layer (SSL) as a sublayer under its regular HTTP application layering.
Need of HTTPS:
Hypertext Transfer Protocol (HTTP) is a protocol for transmitting and receiving information across the Internet. HTTP serves as a request and response procedure that all agents on the Internet follow so that information can be rapidly, easily, and accurately disseminated between servers, which hold information, and clients, who are trying to access it. You normally use HTTP when you are browsing the web, its not secure, so someone can eavesdrop on the conversation between your computer and the web server. In many cases, clients may be exchanging confidential information with a server, which needs to be secured in order to prevent unauthorized access. For this reason, https, or secure http, was developed by Netscape corporation to allow authorization and secured transactions.
How HTTPS works?
For HTTPS connection, public key and signed certificates are required for the server.
When using an https connection, the server responds to the initial connection by offering a list of encryption methods it supports. In response, the client selects a connection method, and the client and server exchange certificates to authenticate their identities. After this is done, both parties exchange the encrypted information after ensuring that both are using the same key, and the connection is closed. In order to host https connections, a server must have a public key certificate, which embeds key information with a verification of the key owner's identity. Most certificates are verified by a third party so that clients are assured that the key is secure.
In other words, we can say, HTTPS works similar to HTTP but SSL adds some spice in it.
HTTP includes the following actions:
1. The browser opens a TCP connection.
2. The browser sends a HTTP request to the server
3. The server sends a HTTP response to the browser. 4. The TCP connection is closed.
SSL will include the following actions:
1. Authenticate the server to the client.
2. Allow the client and server to select the cryptographic algorithms, or ciphers, that they both support.
3. Optionally authenticate the client to the server.
4. Use public-key encryption techniques to generate shared secrets.
5. Establish an encrypted SSL connection.
6. Once the SSL connection is established the usual transfer of HTTP requests will continue.
Where should https be used?
HTTPS should be used in Banking Websites, Payment Gateway, Shopping Websites, Login Pages, Emails (Gmail offers HTTPS by default in Chrome browser) and Corporate Sector Websites. For example:
PayPal: https://www.paypal.com
Google AdSense: https://www.google.com/adsense/
Beware of using Credit Card Numbers on Internet: If a website ever asks you to enter your credit card information, you should automatically look to see if the web address begins with https://. If it doesn't, there's no way you're going to enter sensitive information like a credit card number!
