Kismet on macOS Catalina
Kismet is another Wireless tool that is capable to capture WPA handshakes wireless troubleshooting and many more. I have a similar write-up about Bettercap on macOS you may want to check [1]. Unfortunately, you can’t search and install via HomeBrew you should build on OSX directly, but requires some libraries to be installed.
Prerequisites
I assume you already have Brew [2] on your macOS. I installed Xcode from App Store also. Next I installed packages using Brew.
brew install pkg-config libmicrohttpd python3 libpcap protobuf protobuf-c pcre librtlsdr libbtbb ubertooth libbtbb libusb libwebsockets openssl
Edited (2021–02–15)
It depends on your OpenSSL version. You probably need to define variables explicitly before compiling Kismet.
Like this example below:
export PKG_CONFIG_PATH="/usr/local/opt/openssl@1.1/lib/pkgconfig"
export LDFLAGS="-L/usr/local/opt/openssl@1.1/lib"
export CPPFLAGS="-I/usr/local/opt/openssl@1.1/include"
After installation you will see information.
Compile from Source
Clone Kismet source code [4]
git clone --recursive https://www.kismetwireless.net/git/kismet.git
Configuration
cd kismet
./configure
Compile Kismet. It will take longer.
make
An installation procedure
sudo make suidinstall
Running Kismet
kismet -c en1
You can access the Web interface using the browser you will be prompted to create an account. Don’t credential in plain text are located under your home directory ~/.kismet/kismet_httpd.conf :)
http://localhost:2501

Reference
#1 https://medium.com/@tomas_savenas/capturing-wpa2-handshakes-on-macos-catalina-pwnacintosh-5b023afbaa97
#2 https://brew.sh
#3 https://www.kismetwireless.net/docs/howto/osx/
#4 https://www.kismetwireless.net/git/kismet.git