# XML Security Library for OpenSSL (1.3.11)

**API Group:** `xmlsec_openssl`

API reference for the xmlsec-openssl back-end.

## Sub-groups

- [OpenSSL Application Helpers](xmlsec_openssl_app.md)

- [OpenSSL Crypto Engine](xmlsec_openssl_crypto.md)

- [OpenSSL Keys Store](xmlsec_openssl_keysstore.md)

- [OpenSSL X.509 Support](xmlsec_openssl_x509.md)
