openbsd/src/lib/libcrypto/hkdf, branch OPENBSD_6_4

openbsd/src/lib/libcrypto/hkdf, branch OPENBSD_6_4_BASE A mirror of https://github.com/libressl/openbsd.git https://git.lua4.win/openbsd/atom?h=OPENBSD_6_4_BASE 2018-04-03T13:33:53+00:00 Add missing $OpenBSD$ tags. 2018-04-03T13:33:53+00:00 tb 2018-04-03T13:33:53+00:00 urn:sha1:58fc1166798a6d9d67e52b832a3ee56edc9ebbb3 Bring in HKDF, from BoringSSL, with regress tests modified to be 2017-05-06T20:42:57+00:00 beck 2017-05-06T20:42:57+00:00 urn:sha1:7f30b538d9c825a59a9a9028931e2f2094cf5a2a in C. Ride previous minor bump ok tom@ inoguchi@ jsing@