{
    "content": [
        {
            "type": "text",
            "text": "# EVP_CIPHER-SM4(7ssl) (man)\n\n**Summary:** EVPCIPHER-SM4 - The SM4 EVPCIPHER implementations\n\n## See Also\n\n- provider-cipher(7)\n- OSSLPROVIDER-default(7)\n\n## Section Outline\n\n- **NAME** (2 lines)\n- **DESCRIPTION** (2 lines) — 2 subsections\n  - Algorithm Names (8 lines)\n  - Parameters (2 lines)\n- **SEE ALSO** (2 lines)\n- **COPYRIGHT** (9 lines)\n\n## Full Content\n\n### NAME\n\nEVPCIPHER-SM4 - The SM4 EVPCIPHER implementations\n\n### DESCRIPTION\n\nSupport for SM4 symmetric encryption using the EVPCIPHER API.\n\n#### Algorithm Names\n\nThe following algorithms are available in the default provider:\n\n\"SM4-CBC:SM4\"\n\"SM4-ECB\"\n\"SM4-CTR\"\n\"SM4-OFB\" or \"SM4-OFB128\"\n\"SM4-CFB\" or \"SM4-CFB128\"\n\n#### Parameters\n\nThis implementation supports the parameters described in \"PARAMETERS\" in EVPEncryptInit(3).\n\n### SEE ALSO\n\nprovider-cipher(7), OSSLPROVIDER-default(7)\n\n### COPYRIGHT\n\nCopyright 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                         EVPCIPHER-SM4(7SSL)\n\n"
        }
    ],
    "structuredContent": {
        "command": "EVP_CIPHER-SM4",
        "section": "7ssl",
        "mode": "man",
        "summary": "EVPCIPHER-SM4 - The SM4 EVPCIPHER implementations",
        "synopsis": null,
        "tldr_summary": null,
        "tldr_examples": [],
        "tldr_source": null,
        "flags": [],
        "examples": [],
        "see_also": [
            {
                "name": "provider-cipher",
                "section": "7",
                "url": "https://www.chedong.com/phpMan.php/man/provider-cipher/7/json"
            },
            {
                "name": "OSSLPROVIDER-default",
                "section": "7",
                "url": "https://www.chedong.com/phpMan.php/man/OSSLPROVIDER-default/7/json"
            }
        ],
        "section_outline": [
            {
                "name": "NAME",
                "lines": 2,
                "subsections": []
            },
            {
                "name": "DESCRIPTION",
                "lines": 2,
                "subsections": [
                    {
                        "name": "Algorithm Names",
                        "lines": 8
                    },
                    {
                        "name": "Parameters",
                        "lines": 2
                    }
                ]
            },
            {
                "name": "SEE ALSO",
                "lines": 2,
                "subsections": []
            },
            {
                "name": "COPYRIGHT",
                "lines": 9,
                "subsections": []
            }
        ]
    }
}