strongswan_pki---pub man page

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


pki --pub [--in file|--keyid hex]
pki --pub --options file
pki --pub -h | --help


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


-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.


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



2013-07-31 5.5.0 strongSwan