Botan: src/asn1/asn1_oid.h Source File

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asn1_oid.h
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1 /*
2 * ASN.1 OID
3 * (C) 1999-2007 Jack Lloyd
4 *
5 * Distributed under the terms of the Botan license
6 */
7
8 #ifndef BOTAN_ASN1_OID_H__
9 #define BOTAN_ASN1_OID_H__
10
11 #include <botan/asn1_int.h>
12 #include <string>
13 #include <vector>
14
15 namespace Botan {
16
17 /**
18 * This class represents ASN.1 object identifiers.
19 */
20 class BOTAN_DLL OID : public ASN1_Object
21 {
22 public:
23 void encode_into(class DER_Encoder&) const;
24 void decode_from(class BER_Decoder&);
25
26 /**
27 * Find out whether this OID is empty
28 * @return true is no OID value is set
29 */
30 bool is_empty() const { return id.size() == 0; }
31
32 /**
33 * Get this OID as list (vector) of its components.
34 * @return vector representing this OID
35 */
36 std::vector<u32bit> get_id() const { return id; }
37
38 /**
39 * Get this OID as a string
40 * @return string representing this OID
41 */
42 std::string as_string() const;
43
44 /**
45 * Compare two OIDs.
46 * @return true if they are equal, false otherwise
47 */
48 bool operator==(const OID&) const;
49
50 /**
51 * Reset this instance to an empty OID.
52 */
53 void clear();
54
55 /**
56 * Add a component to this OID.
57 * @param new_comp the new component to add to the end of this OID
58 * @return reference to *this
59 */
60 OID& operator+=(u32bit new_comp);
61
62 /**
63 * Construct an OID from a string.
64 * @param str a string in the form "a.b.c" etc., where a,b,c are numbers
65 */
66 OID(const std::string& str = "");
67 private:
68 std::vector<u32bit> id;
69 };
70
71 /**
72 * Append another component onto the OID.
73 * @param oid the OID to add the new component to
74 * @param new_comp the new component to add
75 */
76 OID operator+(const OID& oid, u32bit new_comp);
77
78 /**
79 * Compare two OIDs.
80 * @param a the first OID
81 * @param b the second OID
82 * @return true if a is not equal to b
83 */
84 bool operator!=(const OID& a, const OID& b);
85
86 /**
87 * Compare two OIDs.
88 * @param a the first OID
89 * @param b the second OID
90 * @return true if a is lexicographically smaller than b
91 */
92 bool operator<(const OID& a, const OID& b);
93
94 }
95
96 #endif
Botan::operator!=
bool operator!=(const OctetString &s1, const OctetString &s2)
Definition: symkey.cpp:106
Botan::ASN1_Object
Definition: asn1_int.h:56
Botan::operator==
bool operator==(const OctetString &s1, const OctetString &s2)
Definition: symkey.cpp:98
Botan::DER_Encoder
Definition: der_enc.h:22
Botan::operator+
OctetString operator+(const OctetString &k1, const OctetString &k2)
Definition: symkey.cpp:114
Botan::operator+=
MemoryRegion< T > & operator+=(MemoryRegion< T > &out, const MemoryRegion< T > &in)
Definition: secmem.h:373
Botan
Definition: algo_base.h:14
Botan::operator<
bool BOTAN_DLL operator<(const X509_Time &, const X509_Time &)
Definition: asn1_tm.cpp:286
Botan::OID
Definition: asn1_oid.h:20
Botan::BER_Decoder
Definition: ber_dec.h:19
Botan::OID::is_empty
bool is_empty() const
Definition: asn1_oid.h:30
Botan::u32bit
unsigned int u32bit
Definition: types.h:32
oid
OID oid
Definition: x509_ext.cpp:446
Botan::OID::get_id
std::vector< u32bit > get_id() const
Definition: asn1_oid.h:36