Why do i need prefix openssl with winpty on windows bash?
Why does command
openssl genrsa -des3 -out ca.key 4096
hangs and doesn't respond
while
winpty openssl genrsa -des3 -out ca.key 4096
is working fine?
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2 Answers
bash from Git for Windows uses mintty. mintty cannot present itself as console to openssl but winpty can because it does the required conversions. Learn the details at Git for Windows FAQ.
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adding to the answer: winpty runs an actual windows console window in the background Aug 14, 2019 at 3:21
winpty is a Windows software package providing an interface similar to a Unix pty-master for communicating with Windows console programs. The package consists of a library (libwinpty) and a tool for Cygwin and MSYS for running Windows console programs in a Cygwin/MSYS pty
Because you try to run native openssl in not-native shell, you have to have interface of winpty
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@Patlatus native OpenSSL can't be run in a not-native shell. Mar 7, 2022 at 11:43
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Thanks all! It might improve the answer to give some detailed description of a "native shell".– blongJul 1, 2022 at 16:01