Findings:

• symmetric cipher
• Permutation cipher
• Dorabella Cipher
• rail fence cipher
• VIC cipher
• bifid cipher
• ADFGVX cipher
• Nihilist cipher
• random key substitution cipher
• Lorenz cipher
• Hill cipher
• running key cipher
• Ideal cipher model
• Keyword substitution cipher
• Bacon Cipher
• block cipher cryptanalysis
• null cipher
• Block cipher
• cipher (user)
• symmetric polynomial
• symmetric crash group
• a generalization of the fundamental theorem of symmetric functions
• Symmetric equation of a line
• Positive-Definite Non-Degenerate Symmetric Bilinear Forms
• symmetric function
• binary symmetric channel
• symmetric difference
• symmetric design
• Symmetric scales
• proof of the fundamental theorem on symmetric polynomials
• Turning grill transposition cipher
• symmetric group
• symmetric multiprocessing
• symmetric closure
• A real symmetric matrix has n eigenvalues
• symmetric matrix
• symmetric encryption
• symmetric
• simple substitution cipher
• cipher alphabet
• transposition cipher
• polyalphabetic substitution cipher
• homophonic substitution cipher
• asymmetric cipher
• Caesar shift cipher
• monoalphabetic substitution cipher
• substitution cipher
• cipher text
• atbash cipher
• cipher
• self-synchronizing stream cipher
• Additive Stream Ciphers
• synchronous stream cipher
• Stream Cipher
• Simon Singh's Code Book Cipher Challenge Cracked
• M209 Cipher Machine
• Playfair Cipher
• Soviet Espionage Cipher
• ERIKO-CHAN cipher
• Caesar's Cipher
• The Beale ciphers
• Hash Cipher
• Pigpen Cipher
• hybrid cryptosystem
• mechanical cipher system

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