Add a high-level API #4

1. 
   sipa commented at 2:26 pm on March 26, 2014: contributor

   An API which actually does end-to-end key derivation, ECDSA, Schnorr signatures, ….

   it will probably need a accept a struct with function pointers for generating random bytes, hashing, …

   From #26, this needs support for deterministic signing.

2. sipa cross-referenced this on Jun 15, 2014 from issue Deterministic signing by celil-kj
3. sipa added the label enhancement on Jun 15, 2014
4. subtly cross-referenced this on Aug 13, 2014 from issue arm/ios crash by subtly
5. tphyahoo referenced this in commit caf15af57a on Nov 17, 2015
6. 
   sipa commented at 9:33 pm on April 20, 2016: contributor

   I think this is done.
7. sipa closed this on Apr 20, 2016

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8. gmaxwell cross-referenced this on Sep 23, 2020 from issue memcmp may be miscompiled by GCC by real-or-random

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sipa