pkeyparam(1ssl) [xfree86 man page]
PKEYPARAM(1SSL) OpenSSL PKEYPARAM(1SSL) NAME
openssl-pkeyparam, pkeyparam - public key algorithm parameter processing tool SYNOPSIS
openssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-engine id] [-check] DESCRIPTION
The pkeyparam command processes public key algorithm parameters. They can be checked for correctness and their components printed out. OPTIONS
-help Print out a usage message. -in filename This specifies the input filename to read parameters from or standard input if this option is not specified. -out filename This specifies the output filename to write parameters to or standard output if this option is not specified. -text Prints out the parameters in plain text in addition to the encoded version. -noout Do not output the encoded version of the parameters. -engine id Specifying an engine (by its unique id string) will cause pkeyparam 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 correctness of parameters. EXAMPLE
Print out text version of parameters: openssl pkeyparam -in param.pem -text NOTES
There are no -inform or -outform options for this command because only PEM format is supported because the key type is determined by the PEM headers. SEE ALSO
genpkey(1), rsa(1), pkcs8(1), dsa(1), genrsa(1), gendsa(1) COPYRIGHT
Copyright 2006-2018 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>. 1.1.1a 2018-12-18 PKEYPARAM(1SSL)
Check Out this Related Man Page
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] [-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>. 1.1.1a 2018-12-18 PKEY(1SSL)