//! XML security backend trait.
usecrate::error::OpenSamlError;/// Pluggable XML signature/encryption backend.
////// Implemented by `BergshamraBackend` behind the `crypto-bergshamra` feature.
pubtraitXmlSecurityBackend{/// Verify an enveloped XML-DSig signature over `xml` using `cert_pem`.
fnverify_signature(&self, xml:&str, cert_pem:&str)->Result<(), OpenSamlError>;}