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How do you ensure data is encrypted?
Data, or plaintext, is encrypted with an encryption algorithm and an encryption key. The process results in ciphertext, which only can be viewed in its original form if it is decrypted with the correct key. Symmetric-key ciphers use the same secret key for encrypting and decrypting a message or file.
What are the encryption mechanisms?
RSA is a public-key encryption algorithm and the standard for encrypting data sent over the internet. Unlike Triple DES, RSA is considered an asymmetric encryption algorithm because it uses a pair of keys. The public key is used to encrypt a message and a private key to decrypt it.
Where encryption and decryption is used?
Encryption is the process of translating plain text data (plaintext) into something that appears to be random and meaningless (ciphertext). Decryption is the process of converting ciphertext back to plaintext. To encrypt more than a small amount of data, symmetric encryption is used.
Does data need to be encrypted?
It is ultimately up to you, the user, on whether or not you feel your data should be encrypted. In most cases it is best to err on the side of caution and use encryption to not only protect the data but protect yourself and the university.
How is decryption done?
Decryption is a process of converting encoded/encrypted data in a form that is readable and understood by a human or a computer. This method is performed by un-encrypting the text manually or by using keys used to encrypt the original data.
Which is a higher level mechanism for encryption?
XML encryption is a higher-level mechanism that can use symmetric encryption, asymmetric encryption with RSA keys, X.509 certificates, and OpenPGP keys for encryption and signing. The encrypted XML document has the form of a valid XML document and can be handled by almost any XML parser/reader.
What are the exceptions to Level 1 encryption?
All Level 1 data encryption exceptions must be documented, reviewed and approved by the Information Security Officer (ISO). Encrypting data makes it unreadable, unless the software managing the encryption algorithm is presented the appropriate credentials and keys to unlock the encrypted data.
What should be included in encryption key management plan?
The encryption key management plan shall also address the destruction or revocation of encryption keys that are no longer in use (e.g., the user has left the University) or that aren’t associated with a key management program.
How is the symmetric key used in encryption?
Symmetric encryption uses a so-called symmetric key — rather short byte sequences (8 to 32 bytes usually) that must be kept secret. Text passwords and pass phrases are usually converted to symmetric keys using some key derivation algorithm, so when the application uses the password for encryption, in fact the symmetric key is used.
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