Codex

PKEY

Section: OpenSSL (1SSL)

Updated: 2014-10-15

Index?action=index Return to Main Contents


NAME

pkey - public or private key processing tool

SYNOPSIS

openssl pkey [-inform PEM|DER] [-outform PEM|DER] [-in filename] [-passin arg] [-out filename] [-passout arg] [-cipher] [-text] [-text_pub] [-noout] [-pubin] [-pubout] [-engine id]

DESCRIPTION

The pkey command processes public or private keys. They can be converted between various forms and their components printed out.

COMMAND OPTIONS

-inform DER|PEM
This specifies the input format DER or PEM.:
-outform DER|PEM
This specifies the output format, the options have the same meaning as the -inform option.:
-in filename
This specifies the input filename to read a key from or standard input if this option is not specified. If the key is encrypted a pass phrase will be prompted for.:
-passin arg
the input file password source. For more information about the format of arg see the PASS PHRASE ARGUMENTS section in openssl?(1).:
-out filename
This specifies the output filename to write a key to or standard output if this option is not specified. If any encryption options are set then a pass phrase will be prompted for. The output filename should not be the same as the input filename.:
-passout password
the output file password source. For more information about the format of arg see the PASS PHRASE ARGUMENTS section in openssl?(1).:
-cipher
These options encrypt the private key with the supplied cipher. Any algorithm name accepted by EVP_get_cipherbyname() is acceptable such as des3.:
-text
prints out the various public or private key components in plain text in addition to the encoded version.:
-text_pub
print out only public key components even if a private key is being processed.:
-noout
do not output the encoded version of the key.:
-pubin
by default a private key is read from the input file: with this option a public key is read instead.:
-pubout
by default a private key is output: with this option a public key will be output instead. This option is automatically set if the input is a public key.:
-engine id
specifying an engine (by its unique id string) will cause pkey to attempt to obtain a functional reference to the specified engine, thus initialising it if needed. The engine will then be set as the default for all available algorithms.:

EXAMPLES

To remove the pass phrase on an RSA private key:

To encrypt a private key using triple DES:

To convert a private key from PEM to DER format:

To print out the components of a private key to standard output:

To print out the public components of a private key to standard output:

To just output the public part of a private key:

SEE ALSO

genpkey?(1), rsa?(1), pkcs8?(1), dsa?(1), genrsa?(1), gendsa?(1)


Index

NAME

SYNOPSIS

DESCRIPTION

COMMAND OPTIONS

EXAMPLES

SEE ALSO


More Man Pages