{
    "mode": "man",
    "parameter": "OPENSSL-PKEYPARAM",
    "section": "1SSL",
    "url": "https://www.chedong.com/phpMan.php/man/OPENSSL-PKEYPARAM/1SSL/json",
    "generated": "2026-05-30T10:07:33Z",
    "synopsis": "openssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-check] [-engine\nid] [-provider name] [-provider-path path] [-propquery propq]",
    "sections": {
        "NAME": {
            "content": "openssl-pkeyparam - public key algorithm parameter processing command\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "openssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-check] [-engine\nid] [-provider name] [-provider-path path] [-propquery propq]\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "This command processes public key algorithm parameters.  They can be checked for correctness\nand their components printed out.\n",
            "subsections": []
        },
        "OPTIONS": {
            "content": "",
            "subsections": [
                {
                    "name": "-help",
                    "content": "Print out a usage message.\n"
                },
                {
                    "name": "-in",
                    "content": "This specifies the input filename to read parameters from or standard input if this\noption is not specified.\n"
                },
                {
                    "name": "-out",
                    "content": "This specifies the output filename to write parameters to or standard output if this\noption is not specified.\n"
                },
                {
                    "name": "-text",
                    "content": "Prints out the parameters in plain text in addition to the encoded version.\n"
                },
                {
                    "name": "-noout",
                    "content": "Do not output the encoded version of the parameters.\n"
                },
                {
                    "name": "-check",
                    "content": "This option checks the correctness of parameters.\n"
                },
                {
                    "name": "-engine",
                    "content": "See \"Engine Options\" in openssl(1).  This option is deprecated.\n"
                },
                {
                    "name": "-provider",
                    "content": ""
                },
                {
                    "name": "-provider-path",
                    "content": ""
                },
                {
                    "name": "-propquery",
                    "content": "See \"Provider Options\" in openssl(1), provider(7), and property(7).\n"
                }
            ]
        },
        "EXAMPLES": {
            "content": "Print out text version of parameters:\n\nopenssl pkeyparam -in param.pem -text\n",
            "subsections": []
        },
        "NOTES": {
            "content": "There are no -inform or -outform options for this command because only PEM format is\nsupported because the key type is determined by the PEM headers.\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "openssl(1), openssl-genpkey(1), openssl-rsa(1), openssl-pkcs8(1), openssl-dsa(1),\nopenssl-genrsa(1), openssl-gendsa(1)\n",
            "subsections": []
        },
        "HISTORY": {
            "content": "The -engine option was deprecated in OpenSSL 3.0.\n",
            "subsections": []
        },
        "COPYRIGHT": {
            "content": "Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.\n\nLicensed under the Apache License 2.0 (the \"License\").  You may not use this file except in\ncompliance with the License.  You can obtain a copy in the file LICENSE in the source\ndistribution or at <https://www.openssl.org/source/license.html>.\n\n\n\n3.0.2                                        2026-04-07                      OPENSSL-PKEYPARAM(1SSL)",
            "subsections": []
        }
    },
    "summary": "openssl-pkeyparam - public key algorithm parameter processing command",
    "flags": [
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": "Print out a usage message."
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": "This specifies the input filename to read parameters from or standard input if this option is not specified."
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": "This specifies the output filename to write parameters to or standard output if this option is not specified."
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": "Prints out the parameters in plain text in addition to the encoded version."
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": "Do not output the encoded version of the parameters."
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": "This option checks the correctness of parameters."
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": "See \"Engine Options\" in openssl(1). This option is deprecated."
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": ""
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": ""
        },
        {
            "flag": "",
            "long": null,
            "arg": null,
            "description": "See \"Provider Options\" in openssl(1), provider(7), and property(7)."
        }
    ],
    "examples": [
        "Print out text version of parameters:",
        "openssl pkeyparam -in param.pem -text"
    ],
    "see_also": [
        {
            "name": "openssl",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/openssl/1/json"
        },
        {
            "name": "openssl-genpkey",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-genpkey/1/json"
        },
        {
            "name": "openssl-rsa",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-rsa/1/json"
        },
        {
            "name": "openssl-pkcs8",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-pkcs8/1/json"
        },
        {
            "name": "openssl-dsa",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-dsa/1/json"
        },
        {
            "name": "openssl-genrsa",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-genrsa/1/json"
        },
        {
            "name": "openssl-gendsa",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-gendsa/1/json"
        }
    ]
}