The design of Chacha20
While Chacha20 is mainly used for encryption, its core is a pseudo-random number generator. The cipher text is obtained by XOR'ing the plain text with a pseudo-random stream:
chacha20  xor  block  cipher  stream 
january 2017
If Your Boss Could Do Your Job, You’re More Likely to Be Happy at Work
If Your Boss Could Do Your Job, You’re More Likely to Be Happy at Work
management 
january 2017
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