What Are The Different Types Of Encryption Methods
Leroy Turcios
There are two types of encryption in widespread use today: symmetric and asymmetric encryption. The name derives from whether or not the same key is used for encryption and decryption.
Asymmetric encryption uses the notion of a key pair: a different key is used for the encryption and decryption process. One of the keys is typically known as the private key and the other is known as the public key.
Due to multiple types of data and various security use cases, many different methods of encryption exist. We can broadly group data encryption methods into two categories: symmetric and asymmetric data encryption.
When using symmetrical encryption methods, a single secret key is used to encrypt plaintext and decrypt ciphertext. Both the sender and receiver have private access to the key, which can only be used by authorized recipients. Symmetric encryption is also known as private key cryptography.
Asymmetric encryption offers another level of security to the data which makes online transfers safer. Common asymmetric encryption methods include Rivest Shamir Adleman (RSA) and Elliptic Curve Cryptography (ECC)
Another symmetric encryption algorithm is FPE: Format-Preserving Encryption. As the name suggests, this algorithm keeps the format (and length) of your data during encryption. An example would be a phone number. If the original number is 012-345-6789, then the ciphertext would retain the format but use a different, randomized set of numbers e.g. 313-429-5072.
Now, you must be wondering what is encryption? How does it work? How many types of encryption are there? Is there any encryption standard that one can follow? What else do you require to protect your data? I will answer all of these questions for you in this article. If you are curious to know, keep reading till the end!
1) Symmetric: It works on a single private key, therefore it is faster than asymmetric encryption (explained in detail in the next bullet). For symmetric encryption methods, the sender must share the private key with the receiver to access the data or information.
As technology is advancing, modern encryption techniques have taken over the outdated ones. Hence, there are several different types of encryption software that have made our job easy. So for your ease, I have provided you with a list of the best encryption types and examples below.
Since it encrypts thrice, therefore it is much slower as compared to other types of encryption. Not only that, but it also encrypts data in shorter block lengths, therefore it becomes fairly easy to decrypt the data during the entire encryption process. Hence, there is a higher risk of data theft. However, before other modified types of encryptions emerged, it was the most recommended and widely adopted algorithm.
The Advanced Encryption Standard (AES) is also symmetric encryption based on the Rijndael algorithm. It uses block cipher and encrypts one fixed-size block at a time. It works in 128-bit or 192-bit but can be extended up to the 256-bit key length. To encrypt every bit, there are different rounds. For instance, 128-bit will have 10 rounds, 192-bit will have 12 rounds and so on.
It is considered one of the best encryption algorithms because it was developed by the US National Institute of Standards and Technology. It is also one of the secured types of encryptions as it works on a single private key.
Due to its larger key size, it is known to be one of the strongest encryption types. It is also considered as an encryption standard for data shared over the encrypt internet connection because it is the most secure encryption algorithm up till now. As compared to other types of encryption, RSA gives hackers quite a tough time because of the length of the keys it works with.
Also a symmetric block cipher, Twofish is an advanced version of Blowfish encryption. It has a block size of 128-bits and can extend to the 256-bit key length. Like other symmetric ciphers, it also breaks data into fixed-length blocks. However, it functions in 16 rounds regardless of how large the data is. Amongst the various types of encryption, this one is flexible. It allows you to choose the encryption process to be quick while the key setup to be slow and vice versa.
Since this is license-free and considerable fast, you have full control over it as compared to other types of encryption. If AES would not have become the best encryption algorithm, Twofish would have been considered as one.
Format Preserving Encryption (FPE) is one of the fairly new encryption methods. It encrypts your data in a similar format. For instance, if you have encrypted your password having 6 letters, 5 numbers and 4 special letters, then your output will be a different combination of a similar format.
Once you have chosen your desired encryption type, you need to further make sure that your data is not altered and is authentic and verified. For that, you need to use hashes. They are a one-way function that takes a large set of data and convert them into small standard size data. You create a unique fingerprint that is proof that your data has not been altered during different encryption levels. The outcome of hashing is called hash value or hash digest.
They authenticate the details of the sender and receiver of the encrypted data over the internet using various types of encryption methods. Any certification authority will issue you your digital certificate. It will contain the following:
Internet Protocol Security (IPsec) is a framework for different types of encryption. It helps verify different packets, which are encrypted and decrypted using a public and a private key, within the protocol. For authentication, hash values are also added in those packets. If the sent packet is different from the received packet, then you can easily identify that there has been a change made during the process.
Point-to-Point Tunneling Protocol (PPTP) was developed by Microsoft and other tech companies as a framework for types of encryption. It makes sure that the communication between the VPN (Virtual Private Network) client and the VPN server is without any disturbance.
Layer 2 Tunneling Protocol, endorsed by Microsoft and Cisco, is another framework for types of encryption which is used in hardware-based encryption devices. Unlike PPTP, it encloses the network data twice making the whole process slower.
To recap this article, encryption is a secure way of sharing confidential data over the internet. There are various types of encryption but I have discussed the six best encryption types and examples with you, which are AES, Triple DES, FPE, RSA, Blowfish and Twofish. To authenticate and validate your information, you will need to have encryption protocols and applications in place.
However, this means that it is a slower encryption algorithm. Since it requires two different keys of incredible length, the encryption, and decryption process is slow, but the level of security it provides for sensitive information is incomparable.
When comparing AES vs. RSA encryption methods, it is essential to understand their unique strengths and applications. While AES is a symmetric algorithm designed for rapid data encryption and decryption, RSA is an asymmetric method used primarily for secure key exchange and digital signatures. In certain scenarios, one may outperform the other, making the choice between AES and RSA crucial for optimal security and efficiency.
Encryption, a vital aspect of modern cybersecurity, can appear daunting due to its multifaceted nature. The omnipresence of data necessitates its protection across various states and scenarios, including data at rest and data in transit. One must carefully assess the access requirements, transmission methods, and the nature of interactions involving sensitive information to ensure that appropriate encryption measures are implemented, thus safeguarding confidentiality and integrity of the data.
Asymmetric and symmetric encryption are both better suited to specific scenarios. Symmetric encryption, which employs a single key, is preferable for data-at-rest. Data contained in databases must be encrypted to prevent it from being hacked or stolen. Because this data only has to be secure until it needs to be retrieved in the future, it does not require two keys, simply the one supplied by symmetric encryption. Asymmetric encryption, on the other hand, should be used on data transferred to other persons via email. If only symmetric encryption was used on data in emails, an attacker may steal or compromise the material by obtaining the key used for encryption and decryption. Since their public key was used to encrypt the data, the sender and receiver ensure that only the recipient may decrypt the data using asymmetric encryption. Both methods of encryption are used in conjunction with other procedures, such as digital signature or compression, to give further data protection.
Data encryption in businesses eliminates information breaches and reduces the cost of their impact. It is one of the most effective security methods for protecting sensitive information, but you must understand what documents to encrypt and how to use them efficiently.
It's helpful to have a general concept of your security requirements. A threat assessment is a smart place to start since it will help you identify what data needs to be encrypted. The strength and processing requirements of different encryption systems might vary, therefore it's also crucial to assess how secure your system needs to be.
Data encryption, as valuable as it is, is not a panacea for your security problems. To get good outcomes, ensure sure your team is educated to use proper encryption and key management methods. If workers put their encryption keys on insecure servers, hostile attackers may get access to your company's encrypted data. This type of human mistake is thought to be responsible for 84 percent of cybersecurity breaches. Encryption should be used in conjunction with other security techniques to maximize security. Your company may keep its data safe with many levels of security by deploying secure hardware and a strong firewall in conjunction with data encryption.