Qualities of Columbine Plants, Some of the Different Types. Columbines come in many colors; some are even bi-colored. These perennials can have red, yellow, white, blue, pink, salmon, or purple blossoms. They are airy plants with attractive foliage (clover-like when young).
A cypherpunk is an activist advocating widespread use of strong cryptography as a route to social and political change. Originally communicating through the Cypherpunks electronic mailing list, informal groups aimed to achieve privacy and security through proactive use of cryptography.
The operation of the keystream generator in A5/1, an LFSR-based stream cipher used to encrypt mobile phone conversations. A stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (keystream). In a stream cipher, each plaintext digit is encrypted one at a time with the corresponding digit of the keystream, to give a digit of the ciphertext stream. Since encryption of each digit is dependent on the current state of the cipher, it is also known as state cipher.