Snow is a type of precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. Since snow is composed of small ice particles, it is a granular material. It has an open and therefore soft structure, unless packed by external pressure.

Darrin O'Brien (born October 30 1969), known by his stage name Snow, is an award-winning Canadian reggae musician from Toronto, Ontario. He is best known for the 1993 number-one hit single "Informer".

Snow or SNoW (pronounced: "Snow", born June 11, 1985 in Tokyo, Japan) is a J-Pop singer. She currently attends Santa Monica College in California. She has grown up in a bilingual environment. Her favorite artists include Ani DiFranco, Iggy Pop, Talking Heads, and Jack Johnson.

Her debut single Yes was released under an indie record label in November 2004. In 2005, she switched labels to Sony Music Entertainment Japan and released Hanabi made Ato Sukoshi (花火まであとすこし - unofficial translation: "A Little Longer Until the Fireworks") in July. Her third single, Sakasama no Chō (逆さまの蝶 - unofficial translation: "The Inverted Butterfly"), was released on January 25, 2006. Sakasama no Chō was the opening theme of the 2005/2006 anime Jigoku Shoujo (地獄少女), and will be inserted into the movie Humoresque ~Sakasama no Chō~, to be released in February 2006. The opening theme for Jigoku Shōjo's second season, NightmaRe, was also performed by SNoW, and was released as a single on December 6, 2006.

SNOW 1.0 and 2.0 are two word-based synchronous stream ciphers developed by Thomas Johansson and Patrik Ekdahl at Lund University.

SNOW 1.0, originally simply SNOW, was submitted to the NESSIE project. The cipher has no known intellectual property or other restrictions. The cipher works on 32-bit words and supports both 128- and 256-bit keys. The cipher consists of a combination of a LFSR and a Finite State Machine (FSM) where the LFSR also feeds the next state function of the FSM. The cipher has a short initialization phase and very good performance on both 32-bit processors and in hardware.

During the NESSIE evaluation weaknesses was discovered and SNOW was therefore not included in the NESSIE suite of algorithms. The authors have developed a new version, version 2.0 of the cipher, that solves the weaknesses and improves the performance.

SNOW has been used in the ESTREAM project as a reference cipher for the performance evaluation.

There is more than one artist with this name: 1) Snow (born Darrin O’Brien on October 30, 1968 in North York, Ontario) is an award-winning Canadian reggae musician. His 1992 debut album was 12 Inches of Snow. MC Shan produced the entire album, apart from one track which was produced by John Ficarrotta. The album was produced shortly before Snow was imprisoned. Upon his release from prison, his first single “Informer”, featuring MC Shan, became a chart topping hit. It later went on to becam