+A **Stream Cipher** encrypts digital data one bit or byte at a time, transforming a continuous flow of [Plaintext](/wiki/plaintext) into ciphertext. It achieves this by combining the original data with a pseudorandom [Keystream](/wiki/keystream), making it fast and efficient for real-time communication.
+## See also
+- [Keystream](/wiki/keystream)
+- [Block Cipher](/wiki/block_cipher)
+- [Symmetric Key](/wiki/symmetric_key)
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