This is a small tool to convert BIP39 mnemonic seeds (such as those generated by Trezor devices) into hex seeds importable in standard Decred software.
It supports the use of password-derived BIP39 seeds.
Due to how Decred seeds currently work, the resulting hex seed has double the size of standard decred seeds (33 word mnemonic seeds), therefore it's not currently possible to generate them (the mnemonics based on the PGP wordlist) from the BIP39 source seed.
Go 1.12+ with modules support required.
git clone https://github.com/matheusd/bip39-to-dcr-seed
cd bip39-to-dcr-seed
go run . --help