رمزنگاری جانشینی
Sign in to savemethod of encoding by which units of plaintext are replaced with ciphertext, according to a fixed system; the "units" may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth
Key facts
- Field
- Cryptography
- First published
- Around 850 CE
- Related methods
- Transposition cipher , polyalphabetic cipher , homophonic substitution cipher , one-time pad
- Key size
- Varies (typically 88 bits for mixed alphabet simple substitution)
- Cryptanalysis
- Frequency analysis
via Wikipedia infobox