If you have one of the three:<p>1. a one-way hash function;
2. a block cipher; or
3. a secure random number generator;<p>then you have the other two.<p>So replace &quot;RC4&quot; with Keccak and the argument stands. Keccak doesn&#x27;t fit in a tweet but it prints onto a single page, which is easy enough to distribute: <a href="https:&#x2F;&#x2F;github.com&#x2F;gvanas&#x2F;KeccakCodePackage&#x2F;blob&#x2F;master&#x2F;Standalone&#x2F;CompactFIPS202&#x2F;Keccak-more-compact.c" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;gvanas&#x2F;KeccakCodePackage&#x2F;blob&#x2F;master&#x2F;Stan...</a>