{
    "content": [
        {
            "type": "text",
            "text": "# EVP_SIGNATURE-ECDSA (info)\n\n## NAME\n\nEVPSIGNATURE-ECDSA - The EVPPKEY ECDSA signature implementation.\n\n## DESCRIPTION\n\nSupport for computing ECDSA signatures.  See EVPPKEY-EC(7) for\ninformation related to EC keys.\n\n## Sections\n\n- **NAME**\n- **DESCRIPTION**\n- **SEE ALSO**\n- **COPYRIGHT**\n\nUse structuredContent.sections for detailed options, examples, and full documentation.\n"
        }
    ],
    "structuredContent": {
        "command": "EVP_SIGNATURE-ECDSA",
        "section": "",
        "mode": "info",
        "summary": "EVPSIGNATURE-ECDSA - The EVPPKEY ECDSA 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": 20,
                "subsections": []
            },
            {
                "name": "SEE ALSO",
                "lines": 3,
                "subsections": []
            },
            {
                "name": "COPYRIGHT",
                "lines": 8,
                "subsections": []
            }
        ],
        "sections": {
            "NAME": {
                "content": "EVPSIGNATURE-ECDSA - The EVPPKEY ECDSA signature implementation.\n",
                "subsections": []
            },
            "DESCRIPTION": {
                "content": "Support for computing ECDSA signatures.  See EVPPKEY-EC(7) for\ninformation related to EC keys.\n\nECDSA Signature Parameters\nThe following signature parameters can be set using\nEVPPKEYCTXsetparams().  This may be called after\nEVPPKEYsigninit() or EVPPKEYverifyinit(), and before calling\nEVPPKEYsign() or EVPPKEYverify().\n\n\"digest\" (OSSLSIGNATUREPARAMDIGEST) <UTF8 string>\n\"properties\" (OSSLSIGNATUREPARAMPROPERTIES) <UTF8 string>\nThese parameters are described in provider-signature(7).\n\nThe following signature parameters can be retrieved using\nEVPPKEYCTXgetparams().\n\n\"algorithm-id\" (OSSLSIGNATUREPARAMALGORITHMID) <octet string>\n\"digest\" (OSSLSIGNATUREPARAMDIGEST) <UTF8 string>\nThe parameters are described in provider-signature(7).\n",
                "subsections": []
            },
            "SEE ALSO": {
                "content": "EVPPKEYCTXsetparams(3), EVPPKEYsign(3), EVPPKEYverify(3),\nprovider-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\nthis file except in compliance with the License.  You can obtain a copy\nin the file LICENSE in the source distribution or at\n<https://www.openssl.org/source/license.html>.\n\n3.0.2                             2026-06-02         EVPSIGNATURE-ECDSA(7SSL)",
                "subsections": []
            }
        }
    }
}