The rtl_433 that comes bundled with Homebrew on macOS does not support SSL. Which means that we need to compile it from source. It is rather straight forward to do so.

Uninstall rtl_433⌗

If you already have rtl_433 installed via Homebrew it should be removed first.

brew uninstall rtl_433

Dependencies⌗ 

brew install cmake pkg-config openssl@3

Compile from Source⌗ 

git clone https://github.com/merbanan/rtl_433.git
cd rtl_433
mkdir build
cd build
cmake -DOPENSSL_ROOT_DIR=$(brew --prefix openssl@3) ..
make
make install

NOTE: You know that it will work if you see, -- OpenSSL TLS support will be compiled. Found version 3.1.0, or something similar in the output when running the cmake step.

This should install rtl_433 to /usr/local/bin/rtl_433.