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Vernam Cipher
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Total cards: 3•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (3)
#1
Front (Question)
What is the only cipher proven to be unbreakable
Back (Answer)
Vernam cipher
#2
Front (Question)
What are the perfect conditions that need to be met
Back (Answer)
• Encryption key must be equal to or longer than the plaintext • Key is truly random • Key must be destroyed after use • Key must be directly given in person
#3
Front (Question)
What are the steps of the vernam cipher
Back (Answer)
• Convert plaintext to binary values from the ASCII table • Do same for the key • Perform XOR to the binary values • Convert new binary character using ASCII