Encryption and Decryption of an Image UsingFree-Space Quantum Cryptography (No Error Correction)

Encrypted Image

Alice encrypts

by adding a word of her key:

00111101

to each pixel

Bob decrypts

by subtracting a word of his key:

00111101

from each pixel

IM-1 02-0753 (3/02)

Encryption and Decryption of an Image Using Free-Space Quantum Cryptography (No Error Correction)