To ensure a good performance, additional hardware is required. Furthermore, an SSL certificate can only be purchased from a public trusted authority. It validates your identity and the certificate is only valid for a specific amount of time and needs to be renewed regularly. You could state maintenance is a con here. So, you need to find the right balance between the required security and costs. Using a load balancer in front of the web server farm could be a solution. It divides the traffic that needs to be encrypted and the traffic that does not need to be.
On the one hand, encryption provides a high level of protection, but on the other hand, it brings more concerns to the network administrator. The amount of encrypted SSL websites increases year by year, as well as the lack of visibility to analyze this type of network traffic.
It is very easy for a potential attacker to use an encrypted connection to hide his malicious actions , but how can you tackle this? SSL interception or decryption on network devices for outbound connections to the internet can definitely be a solution. Well, these devices could identify this encrypted traffic as a man-in-the-middle attack that breaks the encryption into two separate encrypted streams.
The end users will still experience the protection of an encrypted connection while security analysts and devices can properly monitor and alert in case of unwanted or malicious activity. What do I mean by malicious activity? Well, these actions could be anything, for instance, the downloading of infected email attachments using the web-based email service Gmail.
The firewall can apply security policies to the decrypted traffic in order to detect malicious content and to control applications running on this secure channel. This way of working is completely transparent to the end user. The webserver thinks it is communicating with the end user and in the meanwhile, there is an encrypted connection between the server and the firewall or the dedicated SSL appliance, which, in its turn, will set up a new encrypted connection with the end user.
In most organizations, this SSL decryption is deployed for outbound connections to the internet using Palo Alto Networks. I have worked with Palo Alto Networks for a long time. My experience has taught me that it easily enables SSL decryption based on different parameters such as the URL category and user group.
A similar solution is offered by Symantec. Firefox is a trademark of Mozilla Foundation. App Store is a service mark of Apple Inc. Alexa and all related logos are trademarks of Amazon. Microsoft and the Window logo are trademarks of Microsoft Corporation in the U. The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.
Other names may be trademarks of their respective owners. Security Center Privacy What is encryption and how does it protect your data? July 24, Join today. Cancel anytime. Start Free Trial. Encryption plays an essential role. How does encryption work? Symmetric encryption uses a single password to encrypt and decrypt data. Asymmetric encryption uses two keys for encryption and decryption. A public key, which is shared among users, encrypts the data. A private key, which is not shared, decrypts the data.
Types of Encryption There are several types of encryption, each developed with different needs and security needs in mind. AES is used worldwide. TwoFish Twofish is considered one of the fastest encryption algorithms and is free for anyone to use.
Your work requires it. Your workplace may have encryption protocols, or it may be subject to regulations that require encryption. In these cases, encryption is a must. Here are three reasons: 1. Hacking is big business Cybercrime is a global business, often run by multinational outfits. How ransomware uses encryption to commit cybercrimes Encryption is designed to protect your data, but encryption can also be used against you. Install and use trusted security software on all your devices, including your mobile phone.
Using this key, the receiving party would decrypt the message, read the contents and move on. There are many types of encryption, one of which is symmetric key encryption. In this type of encryption, both the encryption and decryption processes use the same single key while working on the data.
Without the secret key, the data cannot be decrypted. The symmetric key algorithm only reverses its encryption procedures when the receiver of the encrypted message who has the encryption key receives the message.
Of course, the actual strength of these keys is dependent on the activity in question. For example, for banking transactions, the industry typically requires the keys to be created according to the data encryption standard approved by FIPS Generally speaking, there are two kinds of symmetric key algorithms.
These are the block algorithm and the stream algorithm. Block algorithms, as the name suggests, encrypt a set length of bits in blocks of data with the help of the secret key. While encrypting the data, the systems keep the data in the memory until the blocks are completed. Stream algorithms work by encrypting the data as it streams without retaining it in the memory.
Asymmetric encryption is also known as public-key encryption and the reason for that is simple: it uses a pair of encryption keys. One is a public key and one is a private key. As their names would suggest, the public key is for anyone to look at and use while the private key is the secret key that only the receiver has access to. The benefit of using asymmetric encryption is that anyone can make their public key available for people to make encrypted messages with and then decrypt it using their private key.
Of course, symmetric key encryption has its advantages over asymmetric encryption as it requires less computation and can handle more data more easily. The other thing to note here is that in public-key encryption anyone can decrypt your data if it was encrypted using a public key. This is why security experts generally warn against using public-key encryption for sensitive data.
The biggest difference between encryption and decryption is what happens to the data in question. Encryption makes data unreadable while decryption makes unreadable data readable by converting it back to its original state. However, there are some other subtle differences as well. Once the data has reached its final destination, then the person who received the data has to decrypt the data. Of course, neither of them really have to do anything themselves since there are specialized apps for both of these processes.
Encryption and decryption algorithms are mathematical functions that perform whatever tasks they were designed to perform.
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