Security, Symmetric Encryption, Cryptography, Encryption.
below. Assume indexes of the matrix as shown below. It uses a function called Quarter Round which takes 4 arguments (a,b,c,d) and carries out the below computation. a += b; d ^= a; d <<<= 16; c += d; b ^= c; b <<<= 12; a += b; d ^= a; d <<<= 8; c += d; b ^= c; b <<<= 7; ChaCha does 10 iterations of