NAME

       pki --pub - Extract a public key from a private key or certificate

SYNOPSIS

       pki --pub [--in file|--keyid hex] [--type type] [--outform encoding] [--debug level]

       pki --pub --options file

       pki --pub -h | --help

DESCRIPTION

       This sub-command of pki(1) extracts public keys from a private keys and certificates.

OPTIONS

       -h, --help
              Print usage information with a summary of the available options.

       -v, --debug level
              Set debug level, default: 1.

       -+, --options file
              Read command line options from file.

       -i, --in file
              Input file. If not given the input is read from STDIN.

       -t, --type type
              Type of input. One of rsa (RSA private key), ecdsa (ECDSA private key), pub (public
              key), pkcs10 (PKCS#10 certificate request), or x509 (X.509  certificate),  defaults
              to rsa.

       -f, --outform encoding
              Encoding  of  the  extracted  public key. One of der (ASN.1 DER), pem (Base64 PEM),
              dnskey (RFC 3110 DNS key), or sshkey (RFC 4253 SSH key), defaults to der.

EXAMPLES

       Extract the public key from an RSA private key:

         pki --pub --in key.der > pub.der

       Extract the public key from an X.509 certificate:

         pki --pub --in cert.der --type x509 > pub.der

SEE ALSO

       pki(1)