1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2014 Governikus GmbH & Co. KG. |
4 | ** Copyright (C) 2016 Richard J. Moore <rich@kde.org> |
5 | ** Contact: https://www.qt.io/licensing/ |
6 | ** |
7 | ** This file is part of the QtNetwork module of the Qt Toolkit. |
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18 | ** GNU Lesser General Public License Usage |
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25 | ** |
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27 | ** Alternatively, this file may be used under the terms of the GNU |
28 | ** General Public License version 2.0 or (at your option) the GNU General |
29 | ** Public license version 3 or any later version approved by the KDE Free |
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36 | ** |
37 | ** $QT_END_LICENSE$ |
38 | ** |
39 | ****************************************************************************/ |
40 | |
41 | #include "qsslellipticcurve.h" |
42 | #include "qsslsocket_p.h" |
43 | #include "qsslsocket_openssl_symbols_p.h" |
44 | |
45 | #include <openssl/ssl.h> |
46 | #include <openssl/obj_mac.h> |
47 | |
48 | #include <algorithm> |
49 | |
50 | QT_BEGIN_NAMESPACE |
51 | |
52 | QString QSslEllipticCurve::shortName() const |
53 | { |
54 | QString result; |
55 | #ifndef OPENSSL_NO_EC |
56 | if (id != 0) |
57 | result = QString::fromLatin1(str: q_OBJ_nid2sn(a: id)); |
58 | #endif |
59 | return result; |
60 | } |
61 | |
62 | QString QSslEllipticCurve::longName() const |
63 | { |
64 | QString result; |
65 | #ifndef OPENSSL_NO_EC |
66 | if (id != 0) |
67 | result = QString::fromLatin1(str: q_OBJ_nid2ln(a: id)); |
68 | #endif |
69 | return result; |
70 | } |
71 | |
72 | QSslEllipticCurve QSslEllipticCurve::fromShortName(const QString &name) |
73 | { |
74 | if (name.isEmpty()) |
75 | return QSslEllipticCurve(); |
76 | |
77 | QSslSocketPrivate::ensureInitialized(); |
78 | |
79 | QSslEllipticCurve result; |
80 | |
81 | #ifndef OPENSSL_NO_EC |
82 | |
83 | const QByteArray curveNameLatin1 = name.toLatin1(); |
84 | int nid = q_OBJ_sn2nid(s: curveNameLatin1.data()); |
85 | |
86 | if (nid == 0) |
87 | nid = q_EC_curve_nist2nid(name: curveNameLatin1.data()); |
88 | |
89 | result.id = nid; |
90 | |
91 | #endif // !OPENSSL_NO_EC |
92 | |
93 | return result; |
94 | } |
95 | |
96 | QSslEllipticCurve QSslEllipticCurve::fromLongName(const QString &name) |
97 | { |
98 | if (name.isEmpty()) |
99 | return QSslEllipticCurve(); |
100 | |
101 | QSslSocketPrivate::ensureInitialized(); |
102 | |
103 | QSslEllipticCurve result; |
104 | |
105 | #ifndef OPENSSL_NO_EC |
106 | const QByteArray curveNameLatin1 = name.toLatin1(); |
107 | |
108 | int nid = q_OBJ_ln2nid(s: curveNameLatin1.data()); |
109 | result.id = nid; |
110 | #endif |
111 | |
112 | return result; |
113 | } |
114 | |
115 | |
116 | // The brainpool curve NIDs (RFC 7027) have been introduced in OpenSSL 1.0.2, |
117 | // redefine them here to make Qt compile with previous versions of OpenSSL |
118 | // (yet correctly recognize them as TLS named curves). |
119 | // See crypto/objects/obj_mac.h |
120 | #ifndef NID_brainpoolP256r1 |
121 | #define NID_brainpoolP256r1 927 |
122 | #endif |
123 | |
124 | #ifndef NID_brainpoolP384r1 |
125 | #define NID_brainpoolP384r1 931 |
126 | #endif |
127 | |
128 | #ifndef NID_brainpoolP512r1 |
129 | #define NID_brainpoolP512r1 933 |
130 | #endif |
131 | |
132 | // NIDs of named curves allowed in TLS as per RFCs 4492 and 7027, |
133 | // see also https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-8 |
134 | static const int tlsNamedCurveNIDs[] = { |
135 | // RFC 4492 |
136 | NID_sect163k1, |
137 | NID_sect163r1, |
138 | NID_sect163r2, |
139 | NID_sect193r1, |
140 | NID_sect193r2, |
141 | NID_sect233k1, |
142 | NID_sect233r1, |
143 | NID_sect239k1, |
144 | NID_sect283k1, |
145 | NID_sect283r1, |
146 | NID_sect409k1, |
147 | NID_sect409r1, |
148 | NID_sect571k1, |
149 | NID_sect571r1, |
150 | |
151 | NID_secp160k1, |
152 | NID_secp160r1, |
153 | NID_secp160r2, |
154 | NID_secp192k1, |
155 | NID_X9_62_prime192v1, // secp192r1 |
156 | NID_secp224k1, |
157 | NID_secp224r1, |
158 | NID_secp256k1, |
159 | NID_X9_62_prime256v1, // secp256r1 |
160 | NID_secp384r1, |
161 | NID_secp521r1, |
162 | |
163 | // RFC 7027 |
164 | NID_brainpoolP256r1, |
165 | NID_brainpoolP384r1, |
166 | NID_brainpoolP512r1 |
167 | }; |
168 | |
169 | static const size_t tlsNamedCurveNIDCount = sizeof(tlsNamedCurveNIDs) / sizeof(tlsNamedCurveNIDs[0]); |
170 | |
171 | bool QSslEllipticCurve::isTlsNamedCurve() const noexcept |
172 | { |
173 | const int * const tlsNamedCurveNIDsEnd = tlsNamedCurveNIDs + tlsNamedCurveNIDCount; |
174 | return std::find(first: tlsNamedCurveNIDs, last: tlsNamedCurveNIDsEnd, val: id) != tlsNamedCurveNIDsEnd; |
175 | } |
176 | |
177 | QT_END_NAMESPACE |
178 | |