A cryptosystem is a set of cryptographic algorithms that map ciphertexts and plaintexts to each other.[1]

Private-key cryptosystems

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Private-key cryptosystems use the same key for encryption and decryption.

Public-key cryptosystems

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Public-key cryptosystems use a public key for encryption and a private key for decryption.

References

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  1. ^ Corinne Bernstein. "cryptosystem". TechTarget.com. Retrieved Nov 1, 2021.
  2. ^ Roeder, Tom. "Symmetric-Key Cryptography". www.cs.cornell.edu. Retrieved 2017-02-05.