Note that it is possible to enter the password when generating: openssl req -new -newkey rsa:3072 -sha256 -out test.com.csr -keyout test.com.key -subj "/C=/ST=/L=/O=/OU=/CN= test.com/emailAddress=admin@test.com" -passout pass:passphrasehere
I tried to reproduce the error, and when I run this same command, the program prompts for the password twice. What version are you running?
I think this version only handles common characters, it doesn't work with çã àá (Portuguese characters) either. Have you tried Busybox's sed? (it's available for download in my repository). Unfortunately I have no way to compile coreutils for Windows statically, I mean, it would be possible to compile coreutils with Cygwin's shared dynamic library, it wouldn't be a binary alone.
Greetings! https://github.com/fukuchi/libqrencode
Unfortunately I don't have a prediction. The machines I have available have Q4OS and Kali Linux 32 and 64-bit operating system and Windows 7 32-bit in dual boot (since 2015), and I currently don't have time to install the necessary toolchains. There is a simpler alternative which is an open source clone called Go-QRCode. It can be compiled for 64-bit Windows from another OS. It runs on my Android Phone too. https://sourceforge.net/projects/go-qrcode/ It helps?