|  | // Copyright 2015 The Chromium Authors | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | #ifndef BSSL_PKI_EXTENDED_KEY_USAGE_H_ | 
|  | #define BSSL_PKI_EXTENDED_KEY_USAGE_H_ | 
|  |  | 
|  | #include <vector> | 
|  |  | 
|  | #include <openssl/base.h> | 
|  |  | 
|  | #include "input.h" | 
|  |  | 
|  | BSSL_NAMESPACE_BEGIN | 
|  |  | 
|  | // The arc for the anyExtendedKeyUsage OID is found under the id-ce arc, | 
|  | // defined in section 4.2.1 of RFC 5280: | 
|  | // id-ce   OBJECT IDENTIFIER ::=  { joint-iso-ccitt(2) ds(5) 29 } | 
|  | // | 
|  | // From RFC 5280 section 4.2.1.12: | 
|  | // id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 } | 
|  | // anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 } | 
|  | // In dotted notation: 2.5.29.37.0 | 
|  | inline constexpr uint8_t kAnyEKU[] = {0x55, 0x1d, 0x25, 0x00}; | 
|  |  | 
|  | // All other key usage purposes defined in RFC 5280 are found in the id-kp | 
|  | // arc, defined in section 4.2.1.12 as: | 
|  | // id-kp OBJECT IDENTIFIER ::= { id-pkix 3 } | 
|  | // | 
|  | // With id-pkix defined in RFC 5280 section 4.2.2 as: | 
|  | // id-pkix  OBJECT IDENTIFIER  ::= | 
|  | //          { iso(1) identified-organization(3) dod(6) internet(1) | 
|  | //                  security(5) mechanisms(5) pkix(7) } | 
|  | // | 
|  | // From RFC 5280 section 4.2.1.12: | 
|  | // id-kp-serverAuth             OBJECT IDENTIFIER ::= { id-kp 1 } | 
|  | // In dotted notation: 1.3.6.1.5.5.7.3.1 | 
|  | inline constexpr uint8_t kServerAuth[] = {0x2b, 0x06, 0x01, 0x05, | 
|  | 0x05, 0x07, 0x03, 0x01}; | 
|  |  | 
|  | // From RFC 5280 section 4.2.1.12: | 
|  | // id-kp-clientAuth             OBJECT IDENTIFIER ::= { id-kp 2 } | 
|  | // In dotted notation: 1.3.6.1.5.5.7.3.2 | 
|  | inline constexpr uint8_t kClientAuth[] = {0x2b, 0x06, 0x01, 0x05, | 
|  | 0x05, 0x07, 0x03, 0x02}; | 
|  |  | 
|  | // From RFC 5280 section 4.2.1.12: | 
|  | // id-kp-codeSigning             OBJECT IDENTIFIER ::= { id-kp 3 } | 
|  | // In dotted notation: 1.3.6.1.5.5.7.3.3 | 
|  | inline constexpr uint8_t kCodeSigning[] = {0x2b, 0x06, 0x01, 0x05, | 
|  | 0x05, 0x07, 0x03, 0x03}; | 
|  |  | 
|  | // From RFC 5280 section 4.2.1.12: | 
|  | // id-kp-emailProtection         OBJECT IDENTIFIER ::= { id-kp 4 } | 
|  | // In dotted notation: 1.3.6.1.5.5.7.3.4 | 
|  | inline constexpr uint8_t kEmailProtection[] = {0x2b, 0x06, 0x01, 0x05, | 
|  | 0x05, 0x07, 0x03, 0x04}; | 
|  |  | 
|  | // From RFC 5280 section 4.2.1.12: | 
|  | // id-kp-timeStamping            OBJECT IDENTIFIER ::= { id-kp 8 } | 
|  | // In dotted notation: 1.3.6.1.5.5.7.3.8 | 
|  | inline constexpr uint8_t kTimeStamping[] = {0x2b, 0x06, 0x01, 0x05, | 
|  | 0x05, 0x07, 0x03, 0x08}; | 
|  |  | 
|  | // From RFC 5280 section 4.2.1.12: | 
|  | // id-kp-OCSPSigning            OBJECT IDENTIFIER ::= { id-kp 9 } | 
|  | // In dotted notation: 1.3.6.1.5.5.7.3.9 | 
|  | inline constexpr uint8_t kOCSPSigning[] = {0x2b, 0x06, 0x01, 0x05, | 
|  | 0x05, 0x07, 0x03, 0x09}; | 
|  |  | 
|  | // Parses |extension_value|, which contains the extnValue field of an X.509v3 | 
|  | // Extended Key Usage extension, and populates |eku_oids| with the list of | 
|  | // DER-encoded OID values (that is, without tag and length). Returns false if | 
|  | // |extension_value| is improperly encoded. | 
|  | // | 
|  | // Note: The returned OIDs are only as valid as long as the data pointed to by | 
|  | // |extension_value| is valid. | 
|  | OPENSSL_EXPORT bool ParseEKUExtension(der::Input extension_value, | 
|  | std::vector<der::Input> *eku_oids); | 
|  |  | 
|  | BSSL_NAMESPACE_END | 
|  |  | 
|  | #endif  // BSSL_PKI_EXTENDED_KEY_USAGE_H_ |