github.com/zmap/zlint@v1.1.0/lints/lint_cert_unique_identifier_version_not_2_or_3.go (about)

     1  package lints
     2  
     3  /*
     4   * ZLint Copyright 2018 Regents of the University of Michigan
     5   *
     6   * Licensed under the Apache License, Version 2.0 (the "License"); you may not
     7   * use this file except in compliance with the License. You may obtain a copy
     8   * of the License at http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
    13   * implied. See the License for the specific language governing
    14   * permissions and limitations under the License.
    15   */
    16  
    17  /**************************************************************************
    18  RFC 5280: 4.1.2.8
    19   These fields MUST only appear if the version is 2 or 3 (Section 4.1.2.1).
    20   These fields MUST NOT appear if the version is 1. The subject and issuer
    21   unique identifiers are present in the certificate to handle the possibility
    22   of reuse of subject and/or issuer names over time. This profile RECOMMENDS
    23   that names not be reused for different entities and that Internet certificates
    24   not make use of unique identifiers. CAs conforming to this profile MUST NOT
    25   generate certificates with unique identifiers. Applications conforming to
    26   this profile SHOULD be capable of parsing certificates that include unique
    27   identifiers, but there are no processing requirements associated with the
    28   unique identifiers.
    29  ****************************************************************************/
    30  
    31  import (
    32  	"github.com/zmap/zcrypto/x509"
    33  	"github.com/zmap/zlint/util"
    34  )
    35  
    36  type certUniqueIdVersion struct{}
    37  
    38  func (l *certUniqueIdVersion) Initialize() error {
    39  	return nil
    40  }
    41  
    42  func (l *certUniqueIdVersion) CheckApplies(c *x509.Certificate) bool {
    43  	return c.IssuerUniqueId.Bytes != nil || c.SubjectUniqueId.Bytes != nil
    44  }
    45  
    46  func (l *certUniqueIdVersion) Execute(c *x509.Certificate) *LintResult {
    47  	if (c.Version) != 2 && (c.Version) != 3 {
    48  		return &LintResult{Status: Error}
    49  	} else {
    50  		return &LintResult{Status: Pass}
    51  	}
    52  }
    53  
    54  func init() {
    55  	RegisterLint(&Lint{
    56  		Name:          "e_cert_unique_identifier_version_not_2_or_3",
    57  		Description:   "Unique identifiers MUST only appear if the X.509 version is 2 or 3",
    58  		Citation:      "RFC 5280: 4.1.2.8",
    59  		Source:        RFC5280,
    60  		EffectiveDate: util.RFC5280Date,
    61  		Lint:          &certUniqueIdVersion{},
    62  	})
    63  }