openssl ec -help

[saolasosme]

EC (Elliptic curve) key processing.

$ openssl ec -help
Usage: ec [options]
Valid options are:
 -help             Display this summary
 -in val           Input file
 -inform format    Input format - DER or PEM
 -out outfile      Output file
 -outform PEM|DER  Output format - DER or PEM
 -noout            Don't print key out
 -text             Print the key
 -param_out        Print the elliptic curve parameters
 -pubin            Expect a public key in input file
 -pubout           Output public key, not private
 -no_public        exclude public key from private key
 -check            check key consistency
 -passin val       Input file pass phrase source
 -passout val      Output file pass phrase source
 -param_enc val    Specifies the way the ec parameters are encoded
 -conv_form val    Specifies the point conversion form 
 -*                Any supported cipher
 -engine val       Use engine, possibly a hardware device