Synchronous stream ciphers In a synchronous stream cipher a stream of pseudo-random digits is generated independently of the plaintext and ciphertext messages , and then combined with the plaintext -LRB- to encrypt -RRB- or the ciphertext -LRB- to decrypt -RRB- .

Synchronous stream ciphers In a synchronous stream cipher a stream of pseudo-random digits is generated independently of the plaintext and ciphertext messages , and then combined with the plaintext -LRB- to encrypt -RRB- or with the ciphertext -LRB- to decrypt -RRB- .
