Private key written as in the example:
"duboli kufuzu naleqy lyfety dohihy rutoqa rageli kilyly vetyka himujy teluzi fuoda va".
Why not? Can I ask you to review the SylUI concept, please? There is location of the demo and more information: "
gregtonoski.github.io/sylui/".
You could use that phrase to generate a brain wallet:
Passphrase: duboli kufuzu naleqy lyfety dohihy rutoqa rageli kilyly vetyka himujy teluzi fuoda va
Secret Exponent: 6a214f3718250338034cdc39f35ddd7bc821b3b88b197a8d30d3aee7f5cbafb2
Private Key: 5Jd2XrmzvzyWopSd9eKLKmajQmDsRK3xhbeEMUFtx6EPUiNNy6h
Address: 1MrXjcHacHxNSqACNjGt3urrWD9yWjeRqR
Hash160: e4c08dc464b579cb6f3ad0f43daa2e32243eba98
Even if brain wallets are considered vulnerable, i think a long prhase like that should be secure enough to proceed with. The risk part is the process of making the wallet, remember to never use an online address generator, always generate them in your computer and if you can generate them under Linux that would be better.