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A stream cipher is a type of encryption algorithm that encrypts data one bit or one byte at a time, rather than encrypting blocks of data as in block ciphers. In a stream cipher, plaintext is combined with a pseudorandom key stream to produce ciphertext. This process is typically achieved using techniques such as the XOR (exclusive OR) operation.

Ancestors (6)

  1. Cryptographic primitives
  2. Cryptography
  3. Applied mathematics
  4. Fields of mathematics
  5. Mathematics
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