---
title: "How to convert from REST PKI to PKI Express in Ruby"
description: "Converting a Ruby application from REST PKI to PKI Express, including the equivalence between REST PKI and PKI Express policy names."
canonical: "https://docs.lacunasoftware.com/en-us/articles/pki-express/ruby/convert-from-restpki"
locale: "en"
product: "PKI Express"
last_updated: "2026-10-12"
---

# How to convert from REST PKI to PKI Express in Ruby
This article explains the modifications necessary to convert a Ruby application using [REST PKI](https://docs.lacunasoftware.com/en-us/articles/rest-pki) to a Ruby application using [PKI Express](https://docs.lacunasoftware.com/en-us/articles/pki-express).

## Policies Equivalence
When converting your Ruby application from using REST PKI to PKI Express, you must pay attention to the policy names used in the application.  
The following table shows the equivalence in policy names between REST PKI (1st column) and PKI Express (2nd column). 

| REST PKI                      | PKI Express                                       |
|-------------------------------|---------------------------------------------------|
| PADES_BASIC                   | PADES_BASIC_WITH_LTV                              |
| PADES_BASIC_WITH_ICPBR_CERTS  | PADES_BASIC_WITH_LTV                              |
| PADES_T_WITH_ICPBR_CERTS      | PADES_T                                           |
| PADES_ICPBR_ADR_BASICA        | PKI_BRAZIL_PADES_ADR_BASICA_WITH_LTV              |
| PADES_ICPBR_ADR_TEMPO         | PKI_BRAZIL_PADES_ADR_TEMPO                        |
| CADES_BES                     | CADES_BES_WITH_REVOCATION_VALUES                  |
| CADES_ICPBR_ADR_BASICA        | PKI_BRAZIL_CADES_ADR_BASICA_WITH_REVOCATION_VALUE |
| CADES_ICPBR_ADR_TEMPO         | PKI_BRAZIL_CADES_ADR_TEMPO                        |
| CADES_ICPBR_ADR_COMPLETA      | PKI_BRAZIL_CADES_ADR_COMPLETA                     |
| XML_XADES_BES                 | XADES_BES                                         |
| XML_DSIG_BASIC                | XML_DSIG_BASIC                                    |
| XML_ICPBR_ADR_BASICA          | PKI_BRAZIL_XML_ADR_BASIC                          |
| XML_ICPBR_ADR_TEMPO           | PKI_BRAZIL_XML_ADR_TEMPO                          |
| XML_ICPBR_NFE_PADRAO_NACIONAL | NFE_PADRAO_NACIONAL                               |