Salsa20 and the closely related ChaCha are stream ciphers developed by Daniel J. Bernstein. Salsa20, the original cipher, was designed in 2005, then later submitted to the eSTREAM European Union cryptographic validation process by Bernstein. ChaCha is a modification of Salsa20 published in 2008. It uses a new round function that increases diffusion and increases performance on some architectures. Both ciphers are built on a pseudorandom function based on add-rotate-XOR (ARX) operations — 32-bit addition, bitwise addition (XOR) and rotation operations. The core function maps a 256-bit key, a 64-bit nonce, and a 64-bit counter to a 512-bit block of the key stream (a Salsa version with a 128-bit key also exists). This gives Salsa20 and ChaCha the unusual advantage that the user can efficiently seek to any position in the key stream in constant time. Salsa20 offers speeds of around 4–14 cycles per byte in software on modern x86 processors, and reasonable hardware performance. It is not patented, and Bernstein has written several public domain implementations optimized for common architectures. (Wikipedia).
Students dance moves from lesson 4 (http://youtu.be/QDvMhvA-Ufw) to music.
From playlist Salsa / Bachata / Zouk Dance lessons
Salsa Mix 2020 | The Best of Salsa 2020 by OSOCITY
Salsa Mix 2020 | The Best of Salsa 2020! MI GENTE!!! MI GENTE 🤩 Put Your dancing shoes on cause its time to SALSA BABY! 💃🏼 This is my First ever Salsa Mix so I had to make it Real SPICY 🌶 For You Mi Amors 💖 I absolutely LOVE This Music! Its truly filled with so much magic ! This Week is F
From playlist Salsa
In this social dance lesson on 22/11/2012, you learned how to do the basic salsa footwork with a partner & how to do the basic guy/girl turns. It's Rebecca's first night doing Salsa! How fast is she learning!
From playlist Salsa / Bachata / Zouk Dance lessons
Salsa Mix 2021 | The Best of Salsa 2021 by OSOCITY
Salsa Mix 2021 | The Best of Salsa 2021! WEEPPAA 🤩 Mi GENTE Get your Dancing Shoes Ready! It’s SLASA TIME 💃🏼 This is My 1st Salsa Mix For 2021 and I made it MUY CALIENTE 🌶 for all of Your Beautiful Faces 😍 This is one of my Favorite Genres 🌺 The Energy and the Vibes from Salsa Music gives
From playlist Salsa
Salsa : The Rhythm of Passion ( Best of Salsa Music )
♫ BUY the MP3 album "100 Songs Latin" on the Official Halidon Music Store : http://bit.ly/2Drr8E7 ►►Order "100 Songs Latin" (4 CDs) on Amazon: http://hyperurl.co/100SongsLatin ►►BUY the CD album 100 Songs Latin on Ebay: http://bit.ly/2zcospF Subscribe for more latin music: http://bit.ly/b
From playlist Salsa
Salsa lesson recap 17/10/2013 with counts
Video with music here: http://youtu.be/8U17f9gEdaM Moves we did today: Revision of basic steps (forward & back, side steps, back steps), getting into hammerlock, getting out of hammerlock, guy's right turn, girl's right turn, double handed pass-by & right turn combination into hammerlock.
From playlist Salsa / Bachata / Zouk Dance lessons
Salsa lesson 4 - 1 and a half right turn, she turns he turns.
Today we did heaps of turns! Starting off with a 1 and a half right turn for the girl following a cross body lead, then she turns he turns (to the left). Thanks Heather for demonstrating - this is only her 4th salsa lesson! Students dance these moves to music here: http://youtu.be/n8LnglGz
From playlist Salsa / Bachata / Zouk Dance lessons
IDOLOS DE LA SALSA - SALSA ROMANTICA - VARIADO SALSA LATINA - LO BUENO NO PASA
IDOLOS DE LA SALSA - SALSA ROMANTICA - VARIADO SALSA LATINA - LO BUENO NO PASA IDOLOS DE LA SALSA - SALSA ROMANTICA - VARIADO SALSA LATINA - LO BUENO NO PASA IDOLOS DE LA SALSA - SALSA ROMANTICA - VARIADO SALSA LATINA - LO BUENO NO PASA https://youtu.be/__v0k7_znJE + Thank for watching! Ha
From playlist Salsa
Ruby Conf 2013 - Being Boring: A Survival Guide to Ruby Cryptography
We all know that security is hard, and that math is hard, but what happens when you put them together? Cryptography is an increasingly essential tool for building secure systems, but also a perilous minefield where any number of mistakes can lead to insecure systems. This talk will take y
From playlist Ruby Conf 2013 - Miami Beach, FL
25c3: An introduction to new stream cipher designs
Speaker: Tor E. Bjørstad Turning data into line noise and back Even with "nothing to hide", we want to protect the privacy of our bits and bytes. Encryption is an important tool for this, and stream ciphers are a major class of symmetric-key encryption schemes. Algorithms such as RC4 (us
From playlist 25C3: Nothing to hide
social dance week 2: Only the second week and these guys learned a double tap shine variation, as well as remembering all the moves from last week + did Bachata later in the night.
From playlist Salsa / Bachata / Zouk Dance lessons