Encryption 101 Flashcards
What is the main purpose of encryption at rest?
To avoid robbery or tampering of data
Mention 1 example of encryption at rest
Password
What does encryption in transit mean?
It means that data is encrypted when traveling from source to destiny.
What is plaintext?
Unencrypted data, not limited to text
What is a key?
A password or more complex
What is ciphertext?
encrypted data generated by an algorithm from plaintext and a key.
What are the fundamentals of symmetric encryption?
A symmetric key is shared between 2 entities or more and then it is used to encrypt/decrypt data
What is the main negative point of using symmetric encryption?
The symmetric key needs to be transmitted to the entities and this could not be safe.
How many keys exist in Asymmetric encryption?
2, public and private.
What is the disadvantage of asymmetric encryption? how can it be sorted out?
It is more complex to implement. Asymmetric encryption can be used to transmit the symmetric keys.
What is the purpose of signing?
To prove identity, you are who you say you are.
Does encryption prove who sends data?
No, it does not prove who sent the data, anybody can use a public key to encrypt data and fake identity.
