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Results tagged with decryption
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user 83783
In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Only authorized parties can decipher a ciphertext back to plaintext and access the original information.
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Matrix cipher - symmetric or asymmetric cryptosystem?
Matrix cipher is defined by:
a) Encryption: $C = K \times Z$, where $C$ is a cryptogram vector, $Z$ is a message vector and $K$ is encryption matrix (encryption key)
b) Decryption: $Z = K^{-1} \times C … $, where $K^{-1}$ is decryption matrix (decryption key), which is inverse to matrix $K$. …
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