Encryption of data has become an integral part of data security. Encryption can protect sensitive information and also provide secure network connections. Encryption generates a ciphertext from your original data, which can be decrypted by the intended recipient. This makes brute force attacks and Man-in-the-middle attack almost impossible.
Encryption, as well as hashing, are both powerful ways to secure your data. A lot of people get confused with encryption and hashing algorithms. However, there is a subtle difference between the two. Encryption allows the recipient to decrypt the data, so you can get a ciphertext and again a plain text using encryption algorithms. On the other hand, hashing is one-way, so you can only generate a hash value of the content but cannot get the plain text content out of it.
There are multiple encryption algorithms, but it is important to find one that is most secure and fits your needs. Below we have listed some of the most popular and secure algorithms.
By design, AES is a block cipher consisting of 128 bits or 192 bits or 256 bits. A block cipher is the one in which encrypts one data block at a time. Though 128 bits are strong and efficient, 256 bits are used for high-grade encryption. It is used by a number of organizations across the globe. It is a symmetric algorithm which uses a single private key for encryption and decryption process.
Here each bit key has different rounds. With 128 bits there are 10 rounds, 192 bits there are 12 rounds and with 256 bits there are 14 rounds. To have a successful encryption you must share the key with other individuals for them to allow decryption of data.
This is unpatented and license-free and allows anyone to use it without any restrictions. This again is a symmetric key encryption algorithm and you need to use the same key for encryption and decryption. It is an equally powerful and extremely flexible encryption algorithm and was one of the five finalists at NIST to replace DES algorithm.
This is used by several financial institutions and a number of industries to keep their data secure. It is a more robust algorithm, but since this does a three times encryption; this is considered as slow in performance.
In this, a public key is used for encryption and a private key is used for decryption. As a thumb rule, the public key can be shared with others, but private key should be kept secretly. This is commonly used for encryption and digital signatures in the cybersecurity world. RSA by design has a very large key size and hence is extremely secure. RSA keys are 1024-bit or 2014-bit long. The only disadvantage of having long key size is, it slower than other encryption algorithms.
These are some of the most popular and secure encryption algorithms having a good track record for robustness, making it practically impossible for hackers to break through your network.