PCI DSS Practice Question: What is the key difference between hashing and encryption? | CyberCertPrep
PCI SSCPCI DSSEncryptionEASYFree question
What is the key difference between hashing and encryption?
A.They are the same thing
B.Encryption is one-way
C.Hashing is faster
D.Hashing is a one-way process that cannot be reversed, while encryption is a two-way process where data can be decrypted back to its original form
Why D is correct
Hashing is irreversible (one-way), producing a fixed-length output. Encryption is reversible (two-way), allowing recovery of the original data with the correct key.
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Where this fits in the PCI DSS exam
Encryption
Covers encryption concepts and practices within PCI DSS.
This question belongs to the "Protect Cardholder Data" domain, which makes up about 20% of the PCI DSS exam.
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