A type of cipher that uses multiple alphabetic strings ........

Computer GK Cyber Security

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A type of cipher that uses multiple alphabetic strings.

Substitution based

Transposition-based

Polyalphabetic substitution based

Mono alphabetic substitution based

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Explanation:

These ciphers are similar to that of mono alphabetic ciphers. Multiple strings are used to encode the plain text. A polyalphabetic cipher is any cipher based on substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though it is a simplified special case.