Jessica Fridrich

This article is about the person Jessica Fridrich. For the speedsolving method of a rubik's cube, see Fridrich Method.

Jessica Fridrich is the inventor of the most commonly used method for speed-solving the Rubik's Cube, better known as speedcubing.^[1]

This method describes solving the cube in a layer-by-layer fashion. First a so-called "cross" is made on the first layer, consisting of the center piece and four edges. The first layer corners and edges of the second layer are put into their correct positions simultaneously (four pairs). The last layer is solved by first orienting and then permuting the last layer cubies using a large number of algorithms.

Fascinated by puzzles and complex geometry, Fridrich has Rubik's Cube inventor Ernő Rubik's signature in her notebook, which he signed at the Rubik's Cube World Championship in Budapest in 1982, where she finished tenth. In the second Rubik's Cube World Championship in Toronto, Canada, she finished second, behind Dan Knights.

In the speedcubing community she is considered one of the pioneers of speedcubing, along with Lars Petrus. Nearly all of the fastest speedcubers have based their methods on Fridrich's, usually referred to as CFOP (Cross, First 2 Layers, Orient Last Layer, Permute Last Layer).

Professional life

Jessica Fridrich works as a professor at the Department of Electrical and Computer Engineering at Binghamton University and specializes in digital watermarking and forensics.^[2][3]

Patents

• 7,787,652 Lossless embedding of data in digital objects
• 7,787,030 Method and apparatus for identifying an imaging device
• 7,616,237 Method and apparatus for identifying an imaging device
• RE40,477 Reliable detection of LSB steganography in color and grayscale images
• 7,239,717 Lossless embedding of data in digital objects
• 7,006,656 Lossless embedding of data in digital objects
• 6,831,991 Reliable detection of LSB steganography in color and grayscale images

References

1. ^ Specializing in Problems That Only Seem Impossible to Solve, By BINA VENKATARAMAN, Published: December 15, 2008, The New York Times
2. ^ Jessica Fridrich, Talk on Youtube
3. ^ Bio:Jessica Fridrich, Binghamton University, USA

External links

• Jessica Fridrich's webpage
• Rubik's Cube World Championship in Budapest in 1982
• Rubik's Cube competition rankings

Persondata
Name	Fridrich, Jessica
Alternative names
Short description
Date of birth
Place of birth
Date of death
Place of death