{
    "content": [
        {
            "type": "text",
            "text": "# EVP_SIGNATURE-RSA (man)\n\n## NAME\n\nEVPSIGNATURE-RSA - The EVPPKEY RSA signature implementation\n\n## DESCRIPTION\n\nSupport for computing RSA signatures.  See EVPPKEY-RSA(7) for information related to RSA\nkeys.\n\n## Sections\n\n- **NAME**\n- **DESCRIPTION** (1 subsections)\n- **SEE ALSO**\n- **COPYRIGHT**\n\nUse structuredContent.sections for detailed options, examples, and full documentation.\n"
        }
    ],
    "structuredContent": {
        "command": "EVP_SIGNATURE-RSA",
        "section": "",
        "mode": "man",
        "summary": "EVPSIGNATURE-RSA - The EVPPKEY RSA signature implementation",
        "synopsis": null,
        "tldr_summary": null,
        "tldr_examples": [],
        "tldr_source": null,
        "flags": [],
        "examples": [],
        "see_also": [
            {
                "name": "EVPPKEYCTXsetparams",
                "section": "3",
                "url": "https://www.chedong.com/phpMan.php/man/EVPPKEYCTXsetparams/3/json"
            },
            {
                "name": "EVPPKEYsign",
                "section": "3",
                "url": "https://www.chedong.com/phpMan.php/man/EVPPKEYsign/3/json"
            },
            {
                "name": "EVPPKEYverify",
                "section": "3",
                "url": "https://www.chedong.com/phpMan.php/man/EVPPKEYverify/3/json"
            },
            {
                "name": "provider-signature",
                "section": "7",
                "url": "https://www.chedong.com/phpMan.php/man/provider-signature/7/json"
            }
        ],
        "section_outline": [
            {
                "name": "NAME",
                "lines": 2,
                "subsections": []
            },
            {
                "name": "DESCRIPTION",
                "lines": 3,
                "subsections": [
                    {
                        "name": "Signature Parameters",
                        "lines": 45
                    }
                ]
            },
            {
                "name": "SEE ALSO",
                "lines": 2,
                "subsections": []
            },
            {
                "name": "COPYRIGHT",
                "lines": 9,
                "subsections": []
            }
        ],
        "sections": {
            "NAME": {
                "content": "EVPSIGNATURE-RSA - The EVPPKEY RSA signature implementation\n",
                "subsections": []
            },
            "DESCRIPTION": {
                "content": "Support for computing RSA signatures.  See EVPPKEY-RSA(7) for information related to RSA\nkeys.\n",
                "subsections": [
                    {
                        "name": "Signature Parameters",
                        "content": "The following signature parameters can be set using EVPPKEYCTXsetparams().  This may be\ncalled after EVPPKEYsigninit() or EVPPKEYverifyinit(), and before calling\nEVPPKEYsign() or EVPPKEYverify().\n\n\"digest\" (OSSLSIGNATUREPARAMDIGEST) <UTF8 string>\n\"properties\" (OSSLSIGNATUREPARAMPROPERTIES) <UTF8 string>\nThese common parameters are described in provider-signature(7).\n\n\"pad-mode\" (OSSLSIGNATUREPARAMPADMODE) <UTF8 string>\nThe type of padding to be used. Its value can be one of the following:\n\n\"none\" (OSSLPKEYRSAPADMODENONE)\n\"pkcs1\" (OSSLPKEYRSAPADMODEPKCSV15)\n\"x931\" (OSSLPKEYRSAPADMODEX931)\n\"pss\" (OSSLPKEYRSAPADMODEPSS)\n\"mgf1-digest\" (OSSLSIGNATUREPARAMMGF1DIGEST) <UTF8 string>\nThe digest algorithm name to use for the maskGenAlgorithm used by \"pss\" mode.\n\n\"mgf1-properties\" (OSSLSIGNATUREPARAMMGF1PROPERTIES) <UTF8 string>\nSets the name of the property query associated with the \"mgf1-digest\" algorithm.  NULL is\nused if this optional value is not set.\n\n\"pss-saltlen\" (OSSLSIGNATUREPARAMPSSSALTLEN) <UTF8 string>\nSet or get the \"pss\" mode minimum salt length. The value can either be a string value\nrepresenting a number or one of the following:\n\n\"digest\" (OSSLPKEYRSAPSSSALTLENDIGEST)\nUse the same length as the digest size.\n\n\"max\" (OSSLPKEYRSAPSSSALTLENMAX)\nUse the maximum salt length.\n\n\"auto\" (OSSLPKEYRSAPSSSALTLENAUTO)\nAuto detect the salt length.\n\nThe following signature parameters can be retrieved using EVPPKEYCTXgetparams().\n\n\"algorithm-id\" (OSSLSIGNATUREPARAMALGORITHMID) <octet string>\nThis common parameter is described in provider-signature(7).\n\n\"digest\" (OSSLSIGNATUREPARAMDIGEST) <UTF8 string>\n\"pad-mode\" (OSSLSIGNATUREPARAMPADMODE) <UTF8 string>\n\"mgf1-digest\" (OSSLSIGNATUREPARAMMGF1DIGEST) <UTF8 string>\nThese parameters are as described above.\n"
                    }
                ]
            },
            "SEE ALSO": {
                "content": "EVPPKEYCTXsetparams(3), EVPPKEYsign(3), EVPPKEYverify(3), provider-signature(7),\n",
                "subsections": []
            },
            "COPYRIGHT": {
                "content": "Copyright 2020-2021 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                                        2026-06-02                      EVPSIGNATURE-RSA(7SSL)",
                "subsections": []
            }
        }
    }
}