openssl-pkey(1), pkey(1) - public or private key processing tool



  • PKEY(1)				    OpenSSL			       PKEY(1)
    
    
    
    NAME
           openssl-pkey, pkey - public or private key processing tool
    
    SYNOPSIS
           openssl pkey [-help] [-inform PEM|DER] [-outform PEM|DER] [-in
           filename] [-passin arg] [-out filename] [-passout arg] [-traditional]
           [-cipher] [-text] [-text_pub] [-noout] [-pubin] [-pubout] [-engine id]
           [-check] [-pubcheck]
    
    DESCRIPTION
           The pkey command processes public or private keys. They can be
           converted between various forms and their components printed out.
    
    OPTIONS
           -help
    	   Print out a usage message.
    
           -inform DER|PEM
    	   This specifies the input format DER or PEM. The default format is
    	   PEM.
    
           -outform DER|PEM
    	   This specifies the output format, the options have the same meaning
    	   and default 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).
    
           -traditional
    	   Normally a private key is written using standard format: this is
    	   PKCS#8 form with the appropriate encryption algorithm (if any). If
    	   the -traditional option is specified then the older "traditional"
    	   format is used instead.
    
           -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.
    
           -check
    	   This option checks the consistency of a key pair for both public
    	   and private components.
    
           -pubcheck
    	   This option checks the correctness of either a public key or the
    	   public component of a key pair.
    
    EXAMPLES
           To remove the pass phrase on an RSA private key:
    
    	openssl pkey -in key.pem -out keyout.pem
    
           To encrypt a private key using triple DES:
    
    	openssl pkey -in key.pem -des3 -out keyout.pem
    
           To convert a private key from PEM to DER format:
    
    	openssl pkey -in key.pem -outform DER -out keyout.der
    
           To print out the components of a private key to standard output:
    
    	openssl pkey -in key.pem -text -noout
    
           To print out the public components of a private key to standard output:
    
    	openssl pkey -in key.pem -text_pub -noout
    
           To just output the public part of a private key:
    
    	openssl pkey -in key.pem -pubout -out pubkey.pem
    
    SEE ALSO
           genpkey(1), rsa(1), pkcs8(1), dsa(1), genrsa(1), gendsa(1)
    
    COPYRIGHT
           Copyright 2006-2017 The OpenSSL Project Authors. All Rights Reserved.
    
           Licensed under the OpenSSL license (the "License").  You may not use
           this file except in compliance with the License.	 You can obtain a copy
           in the file LICENSE in the source distribution or at
           <https://www.openssl.org/source/license.html>.
    
    
    
    1.1.1				  2018-09-11			       PKEY(1)
    

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