Passphrase encoded in UTF-8 and normalized using Unicode Normalization Form C (NFC). Ref: [BIP-0038](https://github.com/bitcoin/bips/blob/master/bip-0038.mediawiki) From: https://github.com/artimonist/core/issues/45
Passphrase encoded in UTF-8 and normalized using Unicode Normalization Form C (NFC).
Ref: BIP-0038
From: artimonist/artimonist-core#45