TrueCrypt had/has that feature for full-drive encryption. But I don't think anyone serious uses them anymore due to the current code maintainers having some questionable allegiances.
Not sure if you count nonprofits, but the Braille Institute has Atkinson Hyperlegible
TrueCrypt had/has that feature for full-drive encryption. But I don't think anyone serious uses them anymore due to the current code maintainers having some questionable allegiances.