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ref: 1492f46f87b0a79cc4a2a2dadb16c1c1911c097c parent: 677dd90b029cc7e11020af220bbcdd2f6028db45 author: cinap_lenrek <cinap_lenrek@felloff.net> date: Sun Jul 10 17:41:57 EDT 2016
libsec: add scrypt password based key derivation function