(ISC)2
SSCP · Question #617
Which of the following algorithms is used today for encryption in PGP?
The correct answer is B. IDEA. The Pretty Good Privacy (PGP) email encryption system was developed by Phil Zimmerman. For encrypting messages, it actually uses AES with up to 256-bit keys, CAST, TripleDES, IDEA and Twofish. RSA is also used in PGP, but only for symmetric key exchange and for digital…
Submitted by brentm· Apr 18, 2026Cryptography
Question
Which of the following algorithms is used today for encryption in PGP?
Options
- ARSA
- BIDEA
- CBlowfish
- DRC5
How the community answered
(55 responses)- A2% (1)
- B87% (48)
- C4% (2)
- D7% (4)
Explanation
The Pretty Good Privacy (PGP) email encryption system was developed by Phil Zimmerman. For encrypting messages, it actually uses AES with up to 256-bit keys, CAST, TripleDES, IDEA and Twofish. RSA is also used in PGP, but only for symmetric key exchange and for digital signatures, but not for encryption.
Topics
#PGP#Encryption algorithms#IDEA
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