OpenSSL ECDSA sign and verify file

 EC Key generation with Specific Curves

openssl ecparam -genkey -name brainpoolP512r1 -noout -out private.pem

EC Public Key Generation 

openssl ec -in private.pem -pubout -out public.pem

Sign Verify:

openssl dgst -sha1 -sign private.pem test > signature.bin

openssl dgst -sha1 -verify public.pem -signature signature.bin test