openssl rsa -in id_rsa -outform pem > id_rsa.pem openssl rsa -in id_rsa -pubout -out id_rsa.pub.pem openssl dgst -sha256 -sign ~/.ssh/id_rsa.pem -out signature.data message openssl dgst -sha256 -verify ~/.ssh/id_rsa.pub.pem -signature signature.data message
Integration of Knowledge and Action (知行合一)by wandering around the world