InitSecurityInterfaceW SpAcceptSecurityContext SpAcquireCredentialsHandleW SpAddCredentialsW SpApplyControlToken SpChangeAccountPasswordW SpCompleteAuthToken SpDecryptMessage SpDeleteSecurityContext SpEncryptMessage SpEnumerateSecurityPackagesW SpExportSecurityContext SpFreeContextBuffer SpFreeCredentialsHandle SpImpersonateSecurityContext SpImportSecurityContextW SpInitializeSecurityContextW SpMakeSignature SpQueryContextAttributesW SpQueryCredentialsAttributesW SpQuerySecurityContextToken SpQuerySecurityPackageInfoW SpRevertSecurityContext SpSetContextAttributesW SpSetCredentialsAttributesW SpVerifySignature