openssl_pkey_get_public(3) [php man page]

OPENSSL_PKEY_GET_PUBLIC(3)						 1						OPENSSL_PKEY_GET_PUBLIC(3)

openssl_pkey_get_public - Extract public key from certificate and prepare it for use

SYNOPSIS

       resource openssl_pkey_get_public (mixed	$certificate)

DESCRIPTION

       openssl_get_publickey(3) extracts the public key from $certificate and prepares it for use by other functions.

PARAMETERS

	      o $certificate
		-$certificate can be one of the following:

		     oan X.509 certificate resource

		     oa string having the format
		       file://path/to/file.pem. The named file must contain a PEM encoded certificate/public key (it may contain both).

		     oA PEM formatted public key.

RETURN VALUES

	Returns a positive key resource identifier on success, or FALSE on error.

PHP Documentation Group 												OPENSSL_PKEY_GET_PUBLIC(3)

PKI --PUB(1)							    strongSwan							      PKI --PUB(1)

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)

5.1.1								    2013-07-31							      PKI --PUB(1)