Dessie

Dessie (Amharic: ደሴ^?) (also spelled Dese or Dessye), is a city and a woreda in north-central Ethiopia. Located in the Debub Wollo Zone of the Amhara Region, it sits at a latitude and longitude of 11°8′N 39°38′E / 11.133°N 39.633°E / 11.133; 39.633, with an elevation between 2,470 and 2,550 metres above sea level.

Dessie is located along Ethiopian Highway 1. It has postal service (a post office was established in the 1920s), and telephone service from at least as early as 1954. The city has had electrical power since at least 1963 when a new diesel-powered electric power station with a power line to Kombolcha was completed, at a cost of Eth$ 110,000. Intercity bus service is provided by the Selam Bus Line Share Company. Dessie shares Combolcha Airport (ICAO code HADC, IATA DSE) with neighbouring Kombolcha.

Dessie is home to a museum, in the former home of Dejazmach Yoseph Birru. It also has a zawiya of the Qadiriyya order of Islam, which was the first Sufi order to be introduced into north-east Africa.

Colneleate synthase

Colneleate synthase (EC 4.2.1.121, 9-divinyl ether synthase, 9-DES, CYP74D, CYP74D1, CYP74 cytochrome P-450, DES1) is an enzyme with system name (8E)-9-((1E,3E)-nona-1,3-dien-1-yloxy)non-8-enoate synthase. This enzyme catalyses the following chemical reaction

This enzyme is a heme-thiolate protein (P450).

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Sheila on 7

Sheila on 7 is an alternative rock band from Yogyakarta, Indonesia. They have changed their lineup several times since their formation on 6 May 1996. Their first lineup consisted of Akhdiyat Duta Modjo (Vocals), Saktia Ari Seno (Guitar), Eross Candra (Guitar), Adam Muhammad Subarkah (Bass) and Anton Widiastanto (Drum). Their current lineup (2006) consists of Akhdiyat Duta Modjo (Vocal), Adam Muhammad Subarkah (Bass), Eross Candra (Guitar) and Brian Kresno Putro (Drums). Eross Candra is currently working on his solo/side-project band called Jagostu.

Their self-titled debut album Sheila on 7 was ranked #33 by Rolling Stone Indonesia on "The 150 Greatest Indonesian Albums of All Time". The magazine also listed the songs "Dan" (#29) and "Melompat Lebih Tinggi" (#147) on "The 150 Greatest Indonesian Songs of All Time".

Sheila on 7 is the first ever band in Indonesia with their first 3 albums sold more than 1 million copies in Indonesia only, with Kisah Klasik Untuk Masa Depan ranked #8 on the list of Indonesian all time best selling albums

Triple DES

In cryptography, Triple DES (3DES) is the common name for the Triple Data Encryption Algorithm (TDEA or Triple DEA) symmetric-key block cipher, which applies the Data Encryption Standard (DES) cipher algorithm three times to each data block.

The original DES cipher's key size of 56 bits was generally sufficient when that algorithm was designed, but the availability of increasing computational power made brute-force attacks feasible. Triple DES provides a relatively simple method of increasing the key size of DES to protect against such attacks, without the need to design a completely new block cipher algorithm.

Definitive standards

The Triple Data Encryption Algorithm (TDEA) is defined in each of:

Data Encryption Standard

The Data Encryption Standard (DES, /ˌdiːˌiːˈɛs/ or /ˈdɛz/) was once a predominant symmetric-key algorithm for the encryption of electronic data. It was highly influential in the advancement of modern cryptography in the academic world. Developed in the early 1970s at IBM and based on an earlier design by Horst Feistel, the algorithm was submitted to the National Bureau of Standards (NBS) following the agency's invitation to propose a candidate for the protection of sensitive, unclassified electronic government data. In 1976, after consultation with the National Security Agency (NSA), the NBS eventually selected a slightly modified version (strengthened against differential cryptanalysis, but weakened against brute force attacks), which was published as an official Federal Information Processing Standard (FIPS) for the United States in 1977. The publication of an NSA-approved encryption standard simultaneously resulted in its quick international adoption and widespread academic scrutiny. Controversies arose out of classified design elements, a relatively short key length of the symmetric-key block cipher design, and the involvement of the NSA, nourishing suspicions about a backdoor. The intense academic scrutiny the algorithm received over time led to the modern understanding of block ciphers and their cryptanalysis.