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home | helpx minix x x minixx PKEY(1SSL) OpenSSL PKEY(1SSL) 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] [-cciipphheerr] [-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. -cciipphheerr 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>. 1.1.1f 2024-07-30 PKEY(1SSL)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | SEE ALSO | COPYRIGHT