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Some of the security controls that were selected during Phase 2 of RMF included data encryption. There was some confusion in the working group meeting this week regarding the need for multiple encryption solutions in the implementation and assessment phases (3&4).
Consider the difference between data at rest (storage) encryption and data in transit (transmission) encryption. Describe a possible implementation solution for each of these cases and explain if it falls within the symmetric or asymmetric model. Provide an assessment of the strengths and weaknesses of the proposed solution options. Include at least one research reference and associated in-text citation using APA standards. In your replies to your peers further discuss the strengths and weaknesses of the various technologies.
Encryption is a process that transforms data into unreadable text. It’s used to protect information, but it can also be used to prevent unauthorized access or modification of data. Encryption algorithms use keys to encrypt and decrypt messages which are then sent through some type of transmission medium (such as the internet). Data at rest encryption uses symmetric key cryptography which means only one key is used for both encryption and decryption. Asymmetric key cryptography uses two separate keys for encrypting and decrypting data; one public and one private (example: RSA). This article will explain the different types of encryption algorithms used in both cases so that you can make an informed decision about what might work best for your situation
Data at rest is meant to provide confidentiality and integrity of data stored on a server. It does not provide authentication nor non-repudiation, meaning that the same password used for authentication cannot be used for encryption. In fact, it’s even more basic than that: data at rest does not even provide integrity or confidentiality in transit (transmission).
Data in transit is used to send information from one end point to another. It can be intercepted and decrypted, but it cannot be encrypted by itself. Asymmetric encryption uses a public key pair for encrypting data at rest and a private key pair for decrypting data in transit. Symmetric encryption is faster than asymmetric encryption because it doesn’t require any additional processing power or memory space on the receiving end; however, symmetric methods are not as secure as their asymmetric counterparts because they can be broken relatively easily with enough computing power (i.e., brute force).
Both these types of encryption use symmetric key cryptography, but they differ in how they operate. In a symmetric key model, the same secret key is used for both encryption and decryption. When an encrypted message is sent through a channel (such as email or an instant messenger), it must be decrypted using this same secret key.
On the other hand, asymmetric models use two separate keys: one public and one private. The public key can be shared with any user who needs to encrypt data; only those people holding onto their own private keys can decrypt it with their own private devices or systems.
Symmetric key cryptography uses the same key for both encryption and decryption. An example of a symmetric key is AES (Advanced Encryption Standard).
Symmetric ciphers are popular because they’re easy to implement, have good security properties, and can be used in applications such as SSL.
Symmetric key cryptography uses a single key for encrypting and decrypting data. An example of symmetric encryption is AES (Advanced Encryption Standard), which is the basis for SSL. Asymmetric key cryptography uses two separate keys for encrypting and decrypting data, one public and one private.
RSA is used in many authentication protocols like SSL because it offers good security against brute force attacks but at a slower speed than symmetric encryption
When choosing encryption algorithms for data at rest, it’s important to consider their differences between symmetric and asymmetric cryptosystems. Symmetric key encryption is faster than asymmetric. However, symmetric keys are more likely to be intercepted by hackers or attackers because they can be recovered from the original message; therefore, this method should not be used for sensitive information such as credit card numbers or bank account numbers.
Asymmetric key encryption uses two separate keys for encrypting and decrypting data — one public key (which you give out) and one private key (which you keep secret). The advantage of this method is that it provides greater security than other methods since only someone with access to your private key can decrypt your information; however, this means more time spent processing requests instead of getting work done quickly!
Data at rest is meant to provide confidentiality and integrity of data stored on a server. Data in transit is used to send information from one end point to another. Both these types of encryption use symmetric key cryptography, but they differ in how they operate. Symmetric key cryptography uses the same key for both encryption and decryption. An example of a symmetric key is AES (Advanced Encryption Standard). Asymmetric key cryptography uses two separate keys for encrypting and decrypting data, one public and one private. An example of an asymmetric key pair is RSA (Rivest Shamir Adleman) which is used for many authentication protocols like SSL (Secure Sockets Layer).
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