pgpainless/pgpainless-core/src/main/java/org/pgpainless/authentication/CertificateAuthority.java

72 lines
3.4 KiB
Java

// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.authentication;
import org.pgpainless.key.OpenPgpFingerprint;
import javax.annotation.Nonnull;
import java.util.Date;
import java.util.List;
/**
* Interface for a CA that can authenticate trust-worthy certificates.
* Such a CA might be a fixed list of trustworthy certificates, or a dynamic implementation like the Web-of-Trust.
*
* @see <a href="https://github.com/pgpainless/pgpainless-wot">PGPainless-WOT</a>
* @see <a href="https://sequoia-pgp.gitlab.io/sequoia-wot/">OpenPGP Web of Trust</a>
*/
public interface CertificateAuthority {
/**
* Determine the authenticity of the binding between the given fingerprint and the userId.
* In other words, determine, how much evidence can be gathered, that the certificate with the given
* fingerprint really belongs to the user with the given userId.
*
* @param fingerprint fingerprint of the certificate
* @param userId userId
* @param email if true, the userId will be treated as an email address and all user-IDs containing
* the email address will be matched.
* @param referenceTime reference time at which the binding shall be evaluated
* @param targetAmount target trust amount (120 = fully authenticated, 240 = doubly authenticated,
* 60 = partially authenticated...)
* @return information about the authenticity of the binding
*/
CertificateAuthenticity authenticateBinding(@Nonnull OpenPgpFingerprint fingerprint,
@Nonnull String userId,
boolean email,
@Nonnull Date referenceTime,
int targetAmount);
/**
* Lookup certificates, which carry a trustworthy binding to the given userId.
*
* @param userId userId
* @param email if true, the user-ID will be treated as an email address and all user-IDs containing
* the email address will be matched.
* @param referenceTime reference time at which the binding shall be evaluated
* @param targetAmount target trust amount (120 = fully authenticated, 240 = doubly authenticated,
* 60 = partially authenticated...)
* @return list of identified bindings
*/
List<CertificateAuthenticity> lookupByUserId(@Nonnull String userId,
boolean email,
@Nonnull Date referenceTime,
int targetAmount);
/**
* Identify trustworthy bindings for a certificate.
* The result is a list of authenticatable userIds on the certificate.
*
* @param fingerprint fingerprint of the certificate
* @param referenceTime reference time for trust calculations
* @param targetAmount target trust amount (120 = fully authenticated, 240 = doubly authenticated,
* 60 = partially authenticated...)
* @return list of identified bindings
*/
List<CertificateAuthenticity> identifyByFingerprint(@Nonnull OpenPgpFingerprint fingerprint,
@Nonnull Date referenceTime,
int targetAmount);
}