MDC usually refers to:
Other meanings include:
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MDC08 is a UHF Citizens' Band Radio (UHF CB) Repeater located on the Central Coast, New South Wales, Australia.
MDC08 provides coverage from Newcastle in the north to south of Sydney in the south and as far west as the Western Suburbs
MDC08 is currently offline and may return soon.
In cryptography, MDC-2 (Modification Detection Code 2, sometimes called Meyer-Schilling) is a cryptographic hash function. MDC-2 is a hash function based on a block cipher with a proof of security in the ideal-cipher model. The length of the output hash depends on the underlying block cipher used.
For a given message to hash and a given block cipher encryption function
, the MDC-2 algorithm proceeds as follows. Let
be the block length,
two different constants of size
. If
where each
has size
, then the hash
of the message is given by:
When MDC-2 uses the DES block cipher, the 128-bit (16-byte) MDC-2 hashes are typically represented as 32-digit hexadecimal numbers. The following demonstrates a 43-byte ASCII input and the corresponding MDC-2 hash:
Even a small change in the message will (with probability) result in a completely different hash, e.g. changing d to c:
The hash of the zero-length string is:
MDC-2 was covered by U.S. Patent 4,908,861, issued on March 13, 1990 but filed by IBM on August 28, 1987.
For this reason, support for MDC-2 has been disabled in OpenSSL on most Linux distributions and is not implemented by many other cryptographic libraries.
Twisted may refer to:
Twisted (Usher and Pharrel song)
Laurie Halse Anderson (born October 23, 1961) is an American writer best known for children's and young adult novels. She received the Margaret A. Edwards Award from the American Library Association in 2009 for her contribution to young adult literature.
She was first recognized for her novel Speak, published in 1999.
Laurie Beth Halse was born to Rev. Frank A. Halse Jr. and Joyce Holcomb Halse in Potsdam, New York. She grew up there with her younger sister, Lisa. As a student, she showed an early interest in writing, specifically during the second grade. Anderson enjoyed reading—especially science fiction and fantasy—as a teenager, but never envisioned herself becoming a writer.
Anderson attended Fayetteville-Manlius High School, in Manlius, New York, a suburb of Syracuse.
During Anderson’s senior year, she moved out of her parents' house at the age of sixteen and lived as an exchange student for thirteen months on a pig farm in Denmark. After her experience in Denmark, Anderson moved back home to work at a clothing store, earning the minimum wage. This motivated her to attend college.
Twisted is a 1986 horror and psychological thriller starring Christian Slater, Lois Smith, and Tandy Cronyn.
One evening, the Collins family discovers their maid, Mrs. Murdock, dead at the end of their steps; her neck is broken. Evidently, she had an accident; now they need a new babysitter for an upcoming party. The sensible Helen meets little Susan Collins at the discount market and likes her, so she offers to do the job. She does not know Susan's teenage brother Mark: technically skilled and good in school, but restive and cunning. Mark also listens regularly to German marching music from the Third Reich. As soon as the parents have left, he psychologically terrorizes Helen and his sister with electronic tricks. Williams (Karl Taylor), a school jock whom Mark burned earlier in science class, is out for revenge; Mark murders him with a fencing sword.
Ultimately, Mark himself is killed when Helen knocks him onto a spiked German helmet. Mark's parents come home to find the house in shambles; they blame Helen and have her arrested, unaware that Mark lies dead upstairs. Secretly, Susan dons her late brother's glasses and proceeds to listen to his Nazi music and the cycle begins anew.