In the rare case that I have to manually type a password into a computer while reading it off of my phone, I often get uppercase letter oh (O) and zeroes (0) confused. The same goes for uppercase letter eyes (I), lowercase letter ells (l), pipes (|), and possibly ones (1).
The point is, the font used to display the password should be a monospace font that is designed to alleviate those issues. It should also have as many glyphs as possible for passwords that use the full UTF8 character set.
Possible fonts to use:
DEJAVU SANS MONO (3289 glyphs)
BITSTREAM VERA SANS MONO (269 glyphs)
UBUNTU (1296 glyphs)
INCONSOLATA (359 glyphs)
Monospace fonts that DO NOT distinguish enough between O and 0 (and should NOT be used):
DROID SANS MONO
LIBERATION MONO
My recommendation is therefore DejaVu Sans Mono which is free to use and can be downloaded from here: https://www.fontsquirrel.com/fonts/DejaVu-Sans-Mono
The point is, the font used to display the password should be a monospace font that is designed to alleviate those issues. It should also have as many glyphs as possible for passwords that use the full UTF8 character set.
Possible fonts to use:
DEJAVU SANS MONO (3289 glyphs)
BITSTREAM VERA SANS MONO (269 glyphs)
UBUNTU (1296 glyphs)
INCONSOLATA (359 glyphs)
Monospace fonts that DO NOT distinguish enough between O and 0 (and should NOT be used):
DROID SANS MONO
LIBERATION MONO
My recommendation is therefore DejaVu Sans Mono which is free to use and can be downloaded from here: https://www.fontsquirrel.com/fonts/DejaVu-Sans-Mono