{
    "content": [
        {
            "type": "text",
            "text": "# OPENSSL-PKEYPARAM(1SSL) (man)\n\n**Summary:** openssl-pkeyparam - public key algorithm parameter processing command\n\n**Synopsis:** openssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-check] [-engine\nid] [-provider name] [-provider-path path] [-propquery propq]\n\n## Flags\n\n| Flag | Long | Arg | Description |\n|------|------|-----|-------------|\n| — | — | — | Print out a usage message. |\n| — | — | — | This specifies the input filename to read parameters from or standard input if this option is not specified. |\n| — | — | — | This specifies the output filename to write parameters to or standard output if this option is not specified. |\n| — | — | — | Prints out the parameters in plain text in addition to the encoded version. |\n| — | — | — | Do not output the encoded version of the parameters. |\n| — | — | — | This option checks the correctness of parameters. |\n| — | — | — | See \"Engine Options\" in openssl(1). This option is deprecated. |\n| — | — | — |  |\n| — | — | — |  |\n| — | — | — | See \"Provider Options\" in openssl(1), provider(7), and property(7). |\n\n## Examples\n\n- `Print out text version of parameters:`\n- `openssl pkeyparam -in param.pem -text`\n\n## See Also\n\n- openssl(1)\n- openssl-genpkey(1)\n- openssl-rsa(1)\n- openssl-pkcs8(1)\n- openssl-dsa(1)\n- openssl-genrsa(1)\n- openssl-gendsa(1)\n\n## Section Outline\n\n- **NAME** (2 lines)\n- **SYNOPSIS** (3 lines)\n- **DESCRIPTION** (3 lines)\n- **OPTIONS** (1 lines) — 10 subsections\n  - -help (2 lines)\n  - -in (3 lines)\n  - -out (3 lines)\n  - -text (2 lines)\n  - -noout (2 lines)\n  - -check (2 lines)\n  - -engine (2 lines)\n  - -provider (1 lines)\n  - -provider-path (1 lines)\n  - -propquery (2 lines)\n- **EXAMPLES** (4 lines)\n- **NOTES** (3 lines)\n- **SEE ALSO** (3 lines)\n- **HISTORY** (2 lines)\n- **COPYRIGHT** (9 lines)\n\n## Full Content\n\n### NAME\n\nopenssl-pkeyparam - public key algorithm parameter processing command\n\n### SYNOPSIS\n\nopenssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-check] [-engine\nid] [-provider name] [-provider-path path] [-propquery propq]\n\n### DESCRIPTION\n\nThis command processes public key algorithm parameters.  They can be checked for correctness\nand their components printed out.\n\n### OPTIONS\n\n#### -help\n\nPrint out a usage message.\n\n#### -in\n\nThis specifies the input filename to read parameters from or standard input if this\noption is not specified.\n\n#### -out\n\nThis specifies the output filename to write parameters to or standard output if this\noption is not specified.\n\n#### -text\n\nPrints out the parameters in plain text in addition to the encoded version.\n\n#### -noout\n\nDo not output the encoded version of the parameters.\n\n#### -check\n\nThis option checks the correctness of parameters.\n\n#### -engine\n\nSee \"Engine Options\" in openssl(1).  This option is deprecated.\n\n#### -provider\n\n#### -provider-path\n\n#### -propquery\n\nSee \"Provider Options\" in openssl(1), provider(7), and property(7).\n\n### EXAMPLES\n\nPrint out text version of parameters:\n\nopenssl pkeyparam -in param.pem -text\n\n### NOTES\n\nThere 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\n### SEE ALSO\n\nopenssl(1), openssl-genpkey(1), openssl-rsa(1), openssl-pkcs8(1), openssl-dsa(1),\nopenssl-genrsa(1), openssl-gendsa(1)\n\n### HISTORY\n\nThe -engine option was deprecated in OpenSSL 3.0.\n\n### COPYRIGHT\n\nCopyright 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)\n\n"
        }
    ],
    "structuredContent": {
        "command": "OPENSSL-PKEYPARAM",
        "section": "1SSL",
        "mode": "man",
        "summary": "openssl-pkeyparam - public key algorithm parameter processing command",
        "synopsis": "openssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-check] [-engine\nid] [-provider name] [-provider-path path] [-propquery propq]",
        "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"
            }
        ],
        "section_outline": [
            {
                "name": "NAME",
                "lines": 2,
                "subsections": []
            },
            {
                "name": "SYNOPSIS",
                "lines": 3,
                "subsections": []
            },
            {
                "name": "DESCRIPTION",
                "lines": 3,
                "subsections": []
            },
            {
                "name": "OPTIONS",
                "lines": 1,
                "subsections": [
                    {
                        "name": "-help",
                        "lines": 2
                    },
                    {
                        "name": "-in",
                        "lines": 3
                    },
                    {
                        "name": "-out",
                        "lines": 3
                    },
                    {
                        "name": "-text",
                        "lines": 2
                    },
                    {
                        "name": "-noout",
                        "lines": 2
                    },
                    {
                        "name": "-check",
                        "lines": 2
                    },
                    {
                        "name": "-engine",
                        "lines": 2
                    },
                    {
                        "name": "-provider",
                        "lines": 1
                    },
                    {
                        "name": "-provider-path",
                        "lines": 1
                    },
                    {
                        "name": "-propquery",
                        "lines": 2
                    }
                ]
            },
            {
                "name": "EXAMPLES",
                "lines": 4,
                "subsections": []
            },
            {
                "name": "NOTES",
                "lines": 3,
                "subsections": []
            },
            {
                "name": "SEE ALSO",
                "lines": 3,
                "subsections": []
            },
            {
                "name": "HISTORY",
                "lines": 2,
                "subsections": []
            },
            {
                "name": "COPYRIGHT",
                "lines": 9,
                "subsections": []
            }
        ]
    }
}