# What Is Data Encryption: Types, Algorithms, Techniques and Methods

Contents

- 1 What Is Data Encryption: Types, Algorithms, Techniques and Methods
- 1.1 How Public Key Encryption Ensures Data Integrity
- 1.2 What is public key encryption?
- 1.3 42%
- 1.4 How does public key cryptography work?
- 1.5 Applications of public key cryptography
- 1.6 Public key cryptography algorithms
- 1.7 Public key encryption in TLS/SSL
- 1.8 Is public key encryption better?
- 1.9 Benefits of public key cryptography
- 1.10 Challenges of public key encryption
- 1.11 What Is Data Encryption: Types, Algorithms, Techniques and Methods
- 1.12 What is Data Encryption?
- 1.13 How Does Data Encryption Work?
- 1.14 Why Do We Need Data Encryption?
- 1.15 What are the 2 Types of Data Encryption Techniques?
- 1.16 What is Hashing?
- 1.17 What is an Encryption Algorithm?
- 1.18 Best Encryption Algorithms
- 1.19 3DES
- 1.20 The Future of Data Encryption
- 1.21 Should You Use Symmetric or Asymmetric Encryption?
- 1.22 Businesses Use Encryption For Many Purposes
- 1.23 Steps to Implement an Effective Encryption Strategy
- 1.24 What Is a Key in Cryptography?
- 1.25 Do You Want to Learn More About Cybersecurity?
- 1.26 FAQs
- 1.26.1 1. What is data encryption?
- 1.26.2 2. What are the 2 types of data encryption?
- 1.26.3 3. What is encryption used for?
- 1.26.4 4. Insights on data encryption?
- 1.26.5 5. How data encryption works
- 1.26.6 6. Can encrypted data be hacked?
- 1.26.7 7. How to implement Data encryption?
- 1.26.8 8. What is data encryption examples?
- 1.26.9 9. What is data encryption and why is it important?
- 1.26.10 10. What is data encryption in DBMS?
- 1.26.11 11. What are the 4 basic types of encryption systems?
- 1.26.12 12. What are the three types of encryption?

- 1.27 Find our CEH (v12)- Certified Ethical Hacker Online Classroom training classes in top cities:
- 1.28 About the Author
- 1.29 Recommended Programs

Public key encryption consists of using two keys, providing a more secure encryption method as compared to symmetric cryptography. There are no exchanges of private keys in public key encryption that eliminates the hassle of key management. In contrast, if an exchanged private key is stolen or lost in symmetric encryption, it can compromise the entire system.

## How Public Key Encryption Ensures Data Integrity

Among other things, encryption plays a vital role in ensuring data security. It’s a process of converting data into an unintelligible form that can only be decoded or decrypted with the help of a cryptographic key.

A cryptographic key is a random sequence of characters that’s generated in an encryption mechanism. It’s used to convert plaintext into ciphertext during encryption. You can use the same key (symmetric encryption) or a different key (asymmetric encryption) to convert the ciphertext to plaintext.

Encryption hides the actual message and converts it into ciphertext, making it unreadable. Public key encryption is one such method through which you can encrypt a message. Think of it as a lock with two keys (public key and private key). If a user locks it with the first key, only the second key can unlock it and vice-versa.

There are other methods, such as symmetric encryption or hybrid encryption, but for now, let’s take a deeper look into public key encryption and see how it provides elevated data security to users.

## What is public key encryption?

Public key encryption, also known as public key cryptography, is a technique that uses two different keys to encrypt and decrypt data. One is the public key, which is available to everyone to encrypt data, and the other is the private key that an initiator can use for decryption.

Public key encryption is also called asymmetric encryption, and it’s widely used for Transport Layer Security/Secure Sockets Layer (TLS/SSL), making Hypertext Transfer Protocol Secure (HTTPS) possible.

Components of public key encryption include:

**Plaintext:**Readable and understandable data that is given to an encryption algorithm as an input**Ciphertext:**Output of encryption in an unintelligible form that one cannot understand**Private key:**A secret key that’s generally used for decoding an encrypted message**Public key:**Available to everyone and is typically used for encrypting a message

For sending an encrypted message, you can get the recipient’s public key from a shared directory. Use this key to encrypt a message before sending it, and the recipient would be able to decrypt it using their corresponding private key.

In contrast, if you encrypt a message using your private key, the receiver can only decrypt it with your public key, verifying your identity. You can carry out both encryption and decryption automatically without physically locking and unlocking a message. Organizations make use of encryption software to carry out the process seamlessly and ensure robust data protection.

## 42%

of respondents are using encryption for customer data.

Public key encryption is a highly secure encryption process as it doesn’t require anyone to share their private key, preventing its leakage in transmission. It provides substantial information security and keeps your data protected against unauthorized access.

Internet communications use public key infrastructure (PKI) to manage identity and security. Asymmetric encryption, or public key cryptography, is the core technology that enables PKI and offers data protection in various communication channels.

On the other hand, private key encryption, also known as symmetric encryption, is a technique that uses one key for both encryption and decryption. Both symmetric and asymmetric encryption have their benefits and challenges based on the use case, and strength of encryption required.

## How does public key cryptography work?

Public key encryption enables users to secretly send and receive messages. It allows each user to create a pair of keys: a public key and a private key . Both keys have a mathematical relation between them. But a private key cannot be practically derived from a public key.

In encryption, one can use a public key to encrypt a message, which the recipient’s private key can only decode. Moreover, if the sender encrypts a message using their private key, the intended recipient can verify the sender’s identity with a public key.

Public key encryption uses longer key lengths that reduce the hassle of key management as there is no need to exchange keys. Once a key is used to encrypt the message, it can’t be used to decrypt it.

Some of the important properties of a public key encryption system include:

- Encryption and decryption use different keys
- Receivers possess their unique private key that are used to decrypt a message
- Receivers publish their public key, which is available to everyone
- A trusted third party assures that a public key belongs to a particular person or entity to avoid spoofing
- Deriving a private key from a public key isn’t possible in public key encryption

## Applications of public key cryptography

Public key cryptography is typically used in e-signatures. An e-signature is a mathematical method to authenticate the identity of a user and maintain the integrity of a document, message, or software. Businesses generally use e-signature software to distribute legally sensitive documents and collect digital signatures.

Apart from digital signatures, public key cryptography is used for various other purposes.

### Web server security

Public key cryptography is at the core of TLS/SSL cryptography protocol that ensures security in HTTPS. It protects web servers and clients against cyber attacks like man-in-the-middle attacks, where an attacker intercepts the communication and access the content within messages. Symmetric encryption is also a part of HTTPS, where public-key encryption is used to exchange keys between two parties, and symmetric encryption keys are used to carry out the encryption process.

Public key encryption enables sender and receiver to verify their identities and helps them to defend against man-in-the-middle attacks. Web server security also provides an additional advantage in ranking websites higher on search engines like Google or Bing.

### Identity authentication

Data has now leaped beyond traditional networks to the cloud, mobile devices, Internet of Things (IoT) devices, and various other technologies, making it crucial for enterprises to secure identities. Public key cryptography enables organizations to use digital identity certificates and replace passwords to prevent brute force attacks.

### Email encryption

Email encryption uses public key cryptography to authenticate and encrypt a message. It helps protect the message against unauthorized entities or malicious hackers. Even if an attacker cracks a mail server password, they won’t be able to view the contents of emails due to encryption.

You can use email encryption software to protect emails by digitally signing them to prove your identity and encrypting the content and attachments in transit or stored on a server.

Secure email encryption methods such as secure/multipurpose internet mail extensions (S/MIME) certificates use public key infrastructure to verify digital identity and facilitate encryption.

### Cryptocurrency

Prominent cryptocurrencies like Bitcoin rely on public key cryptography for transactions. Users have a public key that’s available to everyone, and private keys are kept secret, which is used to carry out a transaction.

For example, in the Bitcoin ledger, unspent transaction outputs (UTXO) are linked to a public key. When user A wants to sign a transaction with user B, user A uses their private key to spend the UTXO and generates a new UTXO linked to user B’s public key.

## Public key cryptography algorithms

Public key cryptography algorithms are mathematical functions that are either used to encrypt a message or verify the origin of a message and the sender’s identity.

Some popular public key cryptographic algorithms are mentioned below.

### Rivest-Shamir-Adleman (RSA) algorithm

The RSA algorithm allows people to use public and private keys to encrypt a message. When a public key is used for encryption, a private key will facilitate decryption and vice versa. Due to this property, it has become a popular asymmetric encryption algorithm. RSA helps organizations ensure confidentiality, integrity, non-repudiation, and authenticity of the information in storage or transit.

The RSA algorithm generates a public key and a private key through a complex process that involves factoring large integers, which are a product of two large prime numbers.

Let’s take an example to see how the RSA algorithm works. Consider two prime numbers, p and q, which are generated using the Rabin-Miller primality test algorithm. The Rabin-Miller primality test algorithm determines whether a number is prime. Use the two prime numbers and calculate their modulus, n.

Modulus, N = p x q

The public key comprises modulus (n) and a public exponent, e. The value of public exponent doesn’t need to be a secret as the public key is accessible to everyone. It’s usually taken as 65537.

The private key consists of a modulus (n) and a private exponent, d (calculated from Extended Euclidean algorithm to find the multiplicative inverse with respect to the totient of n).

Did you know? The Extended Euclidean algorithm is an extension of the Euclidean algorithm. It calculates the greatest common divisor of two integers (a,b) and coefficients of Bézout’s identity (x, y) such that ax + by = Greatest common divisor (a,b).

RSA keys are usually 1024 bits long, but the government and some industries instruct to use a minimum key length of 2048-bit for more security.

### Digital Signature Algorithm (DSA)

A digital signature algorithm is a type of public key encryption algorithm that is used to generate e-signatures. It allows the recipient to authenticate the identity of the sender and verify the origin of the message.

Interestingly, a sender puts their e-signature using the private key, which is verified by a receiver with the help of the corresponding public key. Simply put, a private key is unique; a single person or entity can use it. However, anyone can authenticate the message’s origin by using the public key since it’s available to all.

Digital signature algorithms have substantial strength, but signature length is smaller compared to other signature algorithms. Its computational speed is less and requires less storage space to work.

### Elliptic curve cryptography (ECC)

Elliptic curve cryptography is a type of public key cryptography that leverages the elliptic curve theory to generate efficient and effective cryptographic keys. ECC generates keys through properties of elliptic curve equations rather than factoring two large prime numbers.

It’s popular in mobile applications since it provides the same level of security with a 256-bit key that other encryption systems like RSA deliver in a 3072-bit key while using lower computational power and less battery resource.

With the ongoing development in quantum computing, encryption algorithms that depend on factoring two large prime numbers will be easier to decipher. ECC and Quantum key distribution might be the best reasonable alternatives for encrypting data in days to come.

## Public key encryption in TLS/SSL

TLS/SSL protocol ensures encrypted communications over a network by leveraging both asymmetric and symmetric encryption while providing end-to-end data security. In a TLS/SSL handshake, the server agrees on an encryption algorithm. Websites have TLS/SSL certificates that hold the public key, whereas the private key is installed on the server.

The communications between client and server are then encrypted using the decided encryption algorithm and corresponding keys. It helps protect messages against malicious hackers and ensures a secure communication channel between a client and server.

In the whole process, there is no need to share cryptographic keys. The receiver’s public key is used to encrypt a message that can be decrypted only by the receiver’s private key.

## Is public key encryption better?

Public key encryption consists of using two keys, providing a more secure encryption method as compared to symmetric cryptography. There are no exchanges of private keys in public key encryption that eliminates the hassle of key management. In contrast, if an exchanged private key is stolen or lost in symmetric encryption, it can compromise the entire system.

Public key encryption follows a complex process of encrypting messages. It takes more time and sometimes resources than symmetric encryption, but offers greater security. It also encrypts digital certificates so that malicious hackers cannot gain access to them even if they are compromised.

The choice of encryption will depend on its use, nature of the device, storage, computational power, level of security, and other elements. Depending on these parameters, both symmetric and asymmetric cryptosystems will have their advantages and disadvantages.

## Benefits of public key cryptography

The main advantage of using public key cryptography is more robust data security. Since users don’t have to share, transmit, or reveal their private keys to anyone, it reduces the risk of a cybercriminal intercepting a private key and exploiting it to decrypt communications.

It helps users to address key distribution challenges faced while using private key encryption. It enables organizations to maintain data confidentiality and integrity, resulting in more robust information security.

Apart from encryption strength, public key cryptography also enables users to verify digital identities while ensuring non-repudiation. These benefits have made asymmetric cryptography a popular choice of encryption, from Pretty Good Privacy (PGP) and HTTPS to OpenID Connect (OIDC) and WebAuthN.

## Challenges of public key encryption

The major disadvantage of public key encryption is the low speed at which the encryption process is carried out. It takes more computational power and storage to generate a pair of public key and private key, using complex mathematical operations that involve sizeable prime number factorization.

Some common challenges of public key encryption are:

**Brute force attacks:**Computers with high computational power can find details of the private key by running extensive searches.**Programming challenges:**Users might have to go through a steep learning curve before implementing public key cryptography.**Key management**: Although there is no need for key exchanges between a sender and a receiver, an initiator must still manage their private key themselves.

### Equip to encrypt

Equip your security stack with encryption software and protect every communication that needs to stay private. Public key encryption will help you provide robust protection to your data with a complex encryption mechanism.

Along with encryption and other security defenses, you’ll be able to ensure information security and comply with regulatory standards.

Discover what else you’d need to strengthen information security in your organization.

**Ensure robust data protection**

Use encryption software to prevent data exposure and maintain its confidentiality and integrity.

Sagar Joshi is a former content marketing specialist at G2 in India. He is an engineer with a keen interest in data analytics and cybersecurity. He writes about topics related to them. You can find him reading books, learning a new language, or playing pool in his free time.

**Ensure robust data protection**

Use encryption software to prevent data exposure and maintain its confidentiality and integrity.

## What Is Data Encryption: Types, Algorithms, Techniques and Methods

Data encryption is a common and effective security method—a sound choice for protecting an organization’s information. However, there are a handful of different encryption methods available, so how do you choose?

In a world where cybercrimes are on the rise, it’s comforting to know that there are as many methods available to protect network security as there are ways of trying to penetrate it. The real challenge is deciding which techniques an internet security expert should employ that best suits their organization’s specific situation.

Have a look at the video below that explains what is encryption, how encryption and decryption works with simple step by step explanation, types of encryption and more.

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## What is Data Encryption?

Data encryption is a method of protecting data by encoding it in such a way that it can only be decrypted or accessed by an individual who holds the correct encryption key. When a person or entity accesses encrypted data without permission, it appears scrambled or unreadable.

Data encryption is the process of converting data from a readable format to a scrambled piece of information. This is done to prevent prying eyes from reading confidential data in transit. Encryption can be applied to documents, files, messages, or any other form of communication over a network.

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In order to preserve the integrity of our data, encryption is a vital tool whose value cannot be overstated. Almost everything we see on the internet has passed through some layer of encryption, be it websites or applications.

Noted antivirus and endpoint security experts at Kaspersky define encryption as “… the conversion of data from a readable format into an encoded format that can only be read or processed after it’s been decrypted.”

They go on to say that encryption is considered the basic building block of data security, widely used by large organizations, small businesses, and individual consumers. It’s the most straightforward and crucial means of protecting information that passes from endpoints to servers.

Considering the elevated risk of cybercrime today, every person and group that uses the internet should be familiar with and incorporate basic encryption techniques, at the very least.

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In the realm of cybersecurity education, a comprehensive cyber security bootcamp offers an opportunity to dive into the intricacies of data encryption. Participants gain insights into various encryption methods, such as symmetric and asymmetric encryption, and their significance in safeguarding sensitive information.

## How Does Data Encryption Work?

The data that needs to be encrypted is termed plaintext or cleartext. The plaintext needs to be passed via some encryption algorithms, which are basically mathematical calculations to be done on raw information. There are multiple encryption algorithms, each of which differs by application and security index.

Apart from the algorithms, one also needs an encryption key. Using said key and a suitable encryption algorithm, the plaintext is converted into the encrypted piece of data, also known as ciphertext. Instead of sending the plaintext to the receiver, the ciphertext is sent through insecure channels of communication.

Once the ciphertext reaches the intended receiver, he/she can use a decryption key to convert the ciphertext back to its original readable format i.e. plaintext. This decryption key must be kept secret at all times, and may or not be similar to the key used for encrypting the message. Let’s understand the same with an example.

Let us understand the work process with the help of an example.

### Example

A woman wants to send her boyfriend a personal text, so she encrypts it using specialized software that scrambles the data into what appears to be unreadable gibberish. She then sends the message out, and her boyfriend, in turn, uses the correct decryption to translate it.

Thus, what starts out looking like this:

Fortunately, the keys do all the actual encryption/decryption work, leaving both people more time to contemplate the smoldering ruins of their relationship in total privacy.

Next, in our learning about effective encryption methods, let us find out why we need encryption.

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## Why Do We Need Data Encryption?

If anyone wonders why organizations need to practice encryption, keep these four reasons in mind:

- Authentication: Public key encryption proves that a website’s origin server owns the private key and thus was legitimately assigned an SSL certificate. In a world where so many fraudulent websites exist, this is an important feature.
- Privacy: Encryption guarantees that no one can read messages or access data except the legitimate recipient or data owner. This measure prevents cybercriminals, hackers, internet service providers, spammers, and even government institutions from accessing and reading personal data.
- Regulatory Compliance: Many industries and government departments have rules in place that require organizations that work with users’ personal information to keep that data encrypted. A sampling of regulatory and compliance standards that enforce encryption include HIPAA, PCI-DSS, and the GDPR.
- Security: Encryption helps protect information from data breaches, whether the data is at rest or in transit. For example, even if a corporate-owned device is misplaced or stolen, the data stored on it will most likely be secure if the hard drive is properly encrypted. Encryption also helps protect data against malicious activities like man-in-the-middle attacks, and lets parties communicate without the fear of data leaks.

Let us now find out the important types of data encryption methods.

## What are the 2 Types of Data Encryption Techniques?

There are several data encryption approaches available to choose from. Most internet security (IS) professionals break down encryption into three distinct methods: symmetric, asymmetric, and hashing. These, in turn, are broken down into different types. We’ll explore each one separately.

### What is the Symmetric Encryption Method?

Also called private-key cryptography or a secret key algorithm, this method requires the sender and the receiver to have access to the same key. So, the recipient needs to have the key before the message is decrypted. This method works best for closed systems, which have less risk of a third-party intrusion.

On the positive side, symmetric encryption is faster than asymmetric encryption. However, on the negative side, both parties need to make sure the key is stored securely and available only to the software that needs to use it.

### What is the Asymmetric Encryption Method?

Also called public-key cryptography, this method uses two keys for the encryption process, a public and a private key, which are mathematically linked. The user employs one key for encryption and the other for decryption, though it doesn’t matter which you choose first.

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As the name implies, the public key is freely available to anyone, whereas the private key remains with the intended recipients only, who need it to decipher the messages. Both keys are simply large numbers that aren’t identical but are paired with each other, which is where the “asymmetric” part comes in.

## What is Hashing?

Hashing generates a unique signature of fixed length for a data set or message. Each specific message has its unique hash, making minor changes to the information easily trackable. Data encrypted with hashing cannot be deciphered or reversed back into its original form. That’s why hashing is used only as a method of verifying data.

Many internet security experts don’t even consider hashing an actual encryption method, but the line is blurry enough to let the classification stand. The bottom line, it’s an effective way of showing that no one has tampered with the information.

Now that we have gone through the types of data encryption techniques, let us next learn the specific encryption algorithms.

## What is an Encryption Algorithm?

Encryption algorithms are used to convert data into ciphertext. By using the encryption key, an algorithm can alter data in a predictable manner, resulting in the encrypted data appearing random, but it can be converted back into plaintext by using the decryption key.

## Best Encryption Algorithms

There’s a host of different encryption algorithms available today. Here are five of the more common ones.

- AES. The Advanced Encryption Standard (AES) is the trusted standard algorithm used by the United States government, as well as other organizations. Although extremely efficient in the 128-bit form, AES also uses 192- and 256-bit keys for very demanding encryption purposes. AES is widely considered invulnerable to all attacks except for brute force. Regardless, many internet security experts believe AES will eventually be regarded as the go-to standard for encrypting data in the private sector.
- Triple DES. Triple DES is the successor to the original Data Encryption Standard (DES) algorithm, created in response to hackers who figured out how to breach DES. It’s symmetric encryption that was once the most widely used symmetric algorithm in the industry, though it’s being gradually phased out. TripleDES applies the DES algorithm three times to every data block and is commonly used to encrypt UNIX passwords and ATM PINs.
- RSA. RSA is a public-key encryption asymmetric algorithm and the standard for encrypting information transmitted via the internet. RSA encryption is robust and reliable because it creates a massive bunch of gibberish that frustrates would-be hackers, causing them to expend a lot of time and energy to crack into systems.
- Blowfish. Blowfish is another algorithm that was designed to replace DES. This symmetric tool breaks messages into 64-bit blocks and encrypts them individually. Blowfish has established a reputation for speed, flexibility, and is unbreakable. It’s in the public domain, so that makes it free, adding even more to its appeal. Blowfish is commonly found on e-commerce platforms, securing payments, and in password management tools.
- Twofish. Twofish is Blowfish’s successor. It’s license-free, symmetric encryption that deciphers 128-bit data blocks. Additionally, Twofish always encrypts data in 16 rounds, no matter what the key size. Twofish is perfect for both software and hardware environments and is considered one of the fastest of its type. Many of today’s file and folder encryption software solutions use this method.
- Rivest-Shamir-Adleman (RSA). Rivest-Shamir-Adleman is an asymmetric encryption algorithm that works off the factorization of the product of two large prime numbers. Only a user with knowledge of these two numbers can decode the message successfully. Digital signatures commonly use RSA, but the algorithm slows down when it encrypts large volumes of data.

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## 3DES

Although the Triple Data Encryption Algorithm (3DEA) is the formal name, it is more generally known as 3DES. This is because the 3DES method encrypts its data three times with the Data Encryption Standard (DES) cypher. DES is a Feistel network-based symmetric-key technique. As a symmetric key cypher, it employs the same key for both encryption and decryption. The Feistel network renders each of these processes almost identical, resulting in a more efficient technique to implement.

Although DES has a 64-bit block and key size, the key only provides 56 bits of protection in practise. Because of the short key length of DES, 3DES was created as a more secure alternative.The DES algorithm is executed three times with three keys in 3DES; nevertheless, it is only deemed secure if three distinct keys are utilised.

When the shortcomings of standard DES became clear, 3DES was widely employed in a variety of applications. Prior to the emergence of AES, it was one of the most widely used encryption algorithms.

Examples of its applications include:

- EMV payment systems
- Microsoft Office
- Firefox

Because there are better alternatives, several of these sites no longer employ 3DES.

According to a draught proposal provided by the National Institute of Standards and Technology (NIST), all variants of 3DES would be deprecated until 2023 and prohibited beginning in 2024. Although it is only a draught, the plan represents the end of an era.

## The Future of Data Encryption

As a result, the industry is pushing encryption on several fronts. Some attempts are being made to increase key sizes in order to prevent brute-force decoding. Other initiatives are investigating novel cryptography algorithms. For example, the National Institute of Standards and Technology is testing a quantum-safe next-generation public key algorithm.

The issue is that most quantum-safe algorithms are inefficient on traditional computer systems. To overcome this issue, the industry is concentrating on inventing accelerators to accelerate algorithms on x86 systems.

Homomorphic encryption is a fascinating notion that allows users to do computations on encrypted data without first decrypting it. As a result, an analyst who requires it can query a database holding secret information without having to seek permission from a higher-level analyst or request that the data be declassified.

In addition to securing data in all states, homomorphic encryption also protects it in motion, while in use, and while at rest (on a hard drive). Another advantage is that it is quantum-safe, as it uses some of the same arithmetic as quantum computers.

## Should You Use Symmetric or Asymmetric Encryption?

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.

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## Businesses Use Encryption For Many Purposes

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.

According to a 2019 survey, around 45% of firms have a consistent encryption policy in place across their enterprise. If your firm operates on cloud infrastructure, you must first plan your security requirements for your cloud deployment and any data that will be moved to the cloud. Make a list of all sensitive data sources so you know what needs to be encrypted with which degree of bit-key security.

If your organization is developing a cloud-based website, for example, you will need to allow engineers and manufacturers to exchange source code and design documents among themselves. You would need to install end-to-end encryption protection using one of the numerous ways discussed in this article to safeguard the sensitive data that they would need to communicate. You can ensure the safety of your data in the cloud even if the cloud storage provider or your account is compromised even if some cloud providers provide some level of encryption.

## Steps to Implement an Effective Encryption Strategy

### Collaboration

Developing an encryption strategy necessitates teamwork. It is better to approach it as a large-scale project including members of management, IT, and operations. Begin by gathering important data from stakeholders and identifying the legislation, laws, guidelines, and external forces that will impact purchase and implementation decisions. You can then proceed to identify high-risk places such as laptops, mobile devices, wireless networks, and data backups.

### Define Your Security Requirements

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.

### Select the Appropriate Encryption Tools

Once you’ve determined your security requirements, you can start looking for the solutions that will best fulfill them. Keep in mind that in order to effectively protect your network, you will most likely need to install various data encryption algorithms. For example, you may utilize a secure sockets layer (SSL) protocol to encrypt data sent to and from your website, together with the advanced encryption standard (AES) to safeguard data at rest and backups. Using the correct encryption technologies at each level of data storage and transit will assist to keep your company’s data as safe as possible. Encrypted applications, such as encrypted email services, may also help to ensure overall security.

### Prepare to Smoothly Deploy Your Encryption Plan

The execution of your encryption strategy, like any big change in your firm, must be well-planned. If you have customer-facing apps, your new encryption may need to be integrated into the application’s back end. Similarly, additional procedures may be required to integrate your new encryption method with legacy systems. You can implement these changes with minimal disturbance if you make excellent planning ahead of time. Working with a third-party IT service provider may also aid in the transition. You will not overload your own IT personnel with too many chores involved with implementing your encryption approach.

### After Installation, Maintain Security Culture

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.

## What Is a Key in Cryptography?

A key is a string of random characters in a certain sequence. Encryption techniques utilize a key to jumble data so that anybody without the key cannot decipher the information. Algorithms, which are sophisticated mathematical calculations, are used in modern encryption. Modern keys are generally randomized much further than a basic string of random integers.

This is true for a number of reasons:

- Computers can do significantly more complex computations in far less time than human cryptographers, making more complex encryption not only conceivable but also required.
- Computers may change information at the binary level, the 1s and 0s that make up data, rather not only at the letter and number level.
- Computer software can decode encrypted data if it is not sufficiently randomized. True randomness is critical for really safe encryption.

A cryptographic key, when combined with an encryption method, will jumble a text beyond human recognition.

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Or check out some enterprise-level security training courses such as CISM, CSSP, CISA, CompTIA, and COBIT 2019.

If you can’t decide between the above courses, why not take a handful of them in one convenient program? The Cyber Security Expert Master’s Program teaches you the principles of CompTIA, CEH, CISM, CISSP, and CSSP.

### Do You Want to Become a Network Security Professional?

If you’re ready to take those first steps on the path to becoming a network security professional, then you should start with Simplilearn’s CISSP certification training course. The course develops your expertise in defining IT architecture and in designing, building, and maintaining a secure business environment using globally approved information security standards. The course covers industry best practices and prepares you for the CISSP certification exam held by (ISC)².

You get over 60 hours of in-depth learning, the requisite 30 CPEs you need for taking the certification exam, five simulation test papers designed to help you prepare for the exam, plus an exam voucher. Whether you choose self-paced learning, the Blended Learning option, or a corporate training solution, you will get the benefits of Simplilearn’s expert training, and be ready to embark on that challenging and rewarding network security career!

## FAQs

### 1. What is data encryption?

Data Encryption is the process of protecting and securing data by encoding it in such a way that it can only be accessed or decrypted by someone who has the encryption key. In Data encryption, the data is scrambled before it is sent to the person who can unscramble it using a key.

### 2. What are the 2 types of data encryption?

The two types of data encryption methods are Symmetric Encryption and Asymmetric Encryption. Symmetric encryption is also known as private-key cryptography or secret key algorithm and requires both the parties of sender and receiver to have access to the same key to decrypt the data. Asymmetric Encryption, also known as public-key cryptography, uses two separate keys for encryption process. One key is a public key and the other is a private key which are linked and used for encryption and decryption.

### 3. What is encryption used for?

Encryption is used to protect data being transmitted. This ensures data doesn’t fall into the wrong hands of cybercriminals, hackers, internet service providers, spammers, and even government institutions. Any time you access ATM or sending messages across devices such as Snapchat, these messages are encrypted to ensure that no-one other than the person it was sent to can access it.

### 4. Insights on data encryption?

There is a massive amounts of data being stored on cloud servers and being transmitted everyday. It is virtually impossible to conduct day-to-day operations without storing or transmitting these copious amounts of data. Data encryption software ensure that the data is secured and transmitted safely from one channel to another.

### 5. How data encryption works

The raw data is in plain text, which means it can be read legibly. This data is then transmitted through encryption algorithms that scramble the data from ‘Hi! How are you?’ to ‘A#$*Y*&%($Y#*%Y%*’. This data is then transmitted across to the receiver, which then goes through an decryption process before is visually presented as plain text to the receiver.

### 6. Can encrypted data be hacked?

Yes, encrypted data can be hacked. However, depending on the level of encryption applied on the data, the difficulty level increased.

### 7. How to implement Data encryption?

Before you start implementing Data encryption, you need to understand and define your security needs. The level of encryption will depend on the level of security required by you and your organization. Choose the right encryption tools that suit your needs. Create and implement a encryption strategy. Learn more in detail about data encryption with our Cyber Security Expert course.

### 8. What is data encryption examples?

WEP and WPA are encryption technologies that are extensively used in wireless routers. Examples of asymmetric encryption include RSA and DSA. RC4 and DES are two instances of symmetric encryption. In addition to encryption techniques, there are what is known as Common Criteria (CC).

### 9. What is data encryption and why is it important?

Simply put, encryption is the act of encoding data so that it is concealed from or unavailable to unauthorized users. It aids in the protection of private information and sensitive data, as well as the security of communication between client apps and servers.

### 10. What is data encryption in DBMS?

Encrypting data involves changing it from a readable (plaintext) format to an unreadable, encoded one (ciphertext). Data that has been encrypted can only be viewed or processed after it has been decrypted with a decryption key or password.

### 11. What are the 4 basic types of encryption systems?

- Advanced Encryption Standard (AES)
- Triple DES
- Blowfish
- Rivest-Shamir-Adleman (RSA)

### 12. What are the three types of encryption?

DES, AES, and RSA are the three primary encryption types. A more recent 3DES is a block cipher that is still in use today. The Triple Data Encryption Standard (3DES) does exactly what its name says. For triple protection, it employs three independent 56-bit keys rather than a single 56-bit key. The Advanced Encryption Standard (AES) is used for confidential communications by governments, security groups, and common enterprises. “Rivest-Shamir-Adleman,” or RSA, is another common encryption system. It is frequently used to encrypt data transferred over the internet and depends on a public key to do so. Those receiving the data will be given their own private key to decode the communications.

## Find our CEH (v12)- Certified Ethical Hacker Online Classroom training classes in top cities:

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CEH v12 – Certified Ethical Hacking Course | 21 Oct -19 Nov 2023, Weekend batch |
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CEH v12 – Certified Ethical Hacking Course | 6 Nov -1 Dec 2023, Weekdays batch |
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## About the Author

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CEH (v12)- Certified Ethical Hacker