(ISC)2
SSCP · Question #688
Which type of encryption is considered to be unbreakable if the stream is truly random and is as large as the plaintext and never reused in whole or part?
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Submitted by parkjh· Apr 18, 2026Cryptography
Question
Which type of encryption is considered to be unbreakable if the stream is truly random and is as large as the plaintext and never reused in whole or part?
Options
- AOne Time Pad (OTP)
- BOne time Cryptopad (OTC)
- CCryptanalysis
- DPretty Good Privacy (PGP)
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Topics
#One-Time Pad#Perfect Secrecy#Symmetric Encryption#Encryption Principles