Botan 1.10.17
Public Member Functions | List of all members
Botan::OpenSSL_Engine Class Reference

#include <openssl_engine.h>

Inheritance diagram for Botan::OpenSSL_Engine:
Botan::Engine

Public Member Functions

BlockCipher * find_block_cipher (const SCAN_Name &, Algorithm_Factory &) const
HashFunction * find_hash (const SCAN_Name &, Algorithm_Factory &) const
virtual MessageAuthenticationCode * find_mac (const SCAN_Name &algo_spec, Algorithm_Factory &af) const
virtual PBKDF * find_pbkdf (const SCAN_Name &algo_spec, Algorithm_Factory &af) const
StreamCipher * find_stream_cipher (const SCAN_Name &, Algorithm_Factory &) const
virtual Keyed_Filter * get_cipher (const std::string &algo_spec, Cipher_Dir dir, Algorithm_Factory &af)
PK_Ops::Decryption * get_decryption_op (const Private_Key &key) const
PK_Ops::Encryption * get_encryption_op (const Public_Key &key) const
PK_Ops::Key_Agreement * get_key_agreement_op (const Private_Key &key) const
PK_Ops::Signature * get_signature_op (const Private_Key &key) const
PK_Ops::Verification * get_verify_op (const Public_Key &key) const
Modular_Exponentiator * mod_exp (const BigInt &, Power_Mod::Usage_Hints) const
std::string provider_name () const

Detailed Description

OpenSSL Engine

Definition at line 18 of file openssl_engine.h.

Member Function Documentation

◆ find_block_cipher()

BlockCipher * Botan::OpenSSL_Engine::find_block_cipher ( const SCAN_Name & algo_spec,
Algorithm_Factory & af ) const
virtual
Parameters
algo_specthe algorithm name/specification
afan algorithm factory object
Returns
newly allocated object, or NULL

Reimplemented from Botan::Engine.

Definition at line 187 of file ossl_bc.cpp.

189 {
190#define HANDLE_EVP_CIPHER(NAME, EVP) \
191 if(request.algo_name() == NAME && request.arg_count() == 0) \
192 return new EVP_BlockCipher(EVP, NAME);
193
194#define HANDLE_EVP_CIPHER_KEYLEN(NAME, EVP, MIN, MAX, MOD) \
195 if(request.algo_name() == NAME && request.arg_count() == 0) \
196 return new EVP_BlockCipher(EVP, NAME, MIN, MAX, MOD);
197
198#if !defined(OPENSSL_NO_AES)
199 /*
200 Using OpenSSL's AES causes crashes inside EVP on x86-64 with OpenSSL 0.9.8g
201 cause is unknown
202 */
203 HANDLE_EVP_CIPHER("AES-128", EVP_aes_128_ecb());
204 HANDLE_EVP_CIPHER("AES-192", EVP_aes_192_ecb());
205 HANDLE_EVP_CIPHER("AES-256", EVP_aes_256_ecb());
206#endif
207
208#if !defined(OPENSSL_NO_DES)
209 HANDLE_EVP_CIPHER("DES", EVP_des_ecb());
210 HANDLE_EVP_CIPHER_KEYLEN("TripleDES", EVP_des_ede3_ecb(), 16, 24, 8);
211#endif
212
213#if !defined(OPENSSL_NO_BF)
214 HANDLE_EVP_CIPHER_KEYLEN("Blowfish", EVP_bf_ecb(), 1, 56, 1);
215#endif
216
217#if !defined(OPENSSL_NO_CAST)
218 HANDLE_EVP_CIPHER_KEYLEN("CAST-128", EVP_cast5_ecb(), 1, 16, 1);
219#endif
220
221#if !defined(OPENSSL_NO_CAMELLIA)
222 HANDLE_EVP_CIPHER("Camellia-128", EVP_camellia_128_ecb());
223 HANDLE_EVP_CIPHER("Camellia-192", EVP_camellia_192_ecb());
224 HANDLE_EVP_CIPHER("Camellia-256", EVP_camellia_256_ecb());
225#endif
226
227#if !defined(OPENSSL_NO_RC2)
228 HANDLE_EVP_CIPHER_KEYLEN("RC2", EVP_rc2_ecb(), 1, 32, 1);
229#endif
230
231#if !defined(OPENSSL_NO_RC5) && 0
232 if(request.algo_name() == "RC5")
233 if(request.arg_as_integer(0, 12) == 12)
234 return new EVP_BlockCipher(EVP_rc5_32_12_16_ecb(),
235 "RC5(12)", 1, 32, 1);
236#endif
237
238#if !defined(OPENSSL_NO_IDEA) && 0
239 HANDLE_EVP_CIPHER("IDEA", EVP_idea_ecb());
240#endif
241
242#if !defined(OPENSSL_NO_SEED)
243 HANDLE_EVP_CIPHER("SEED", EVP_seed_ecb());
244#endif
245
246#undef HANDLE_EVP_CIPHER
247#undef HANDLE_EVP_CIPHER_KEYLEN
248
249 return 0;
250 }
HANDLE_EVP_CIPHER
#define HANDLE_EVP_CIPHER(NAME, EVP)
HANDLE_EVP_CIPHER_KEYLEN
#define HANDLE_EVP_CIPHER_KEYLEN(NAME, EVP, MIN, MAX, MOD)

References Botan::SCAN_Name::algo_name(), Botan::SCAN_Name::arg_as_integer(), find_block_cipher(), HANDLE_EVP_CIPHER, and HANDLE_EVP_CIPHER_KEYLEN.

Referenced by find_block_cipher().

◆ find_hash()

HashFunction * Botan::OpenSSL_Engine::find_hash ( const SCAN_Name & algo_spec,
Algorithm_Factory & af ) const
virtual
Parameters
algo_specthe algorithm name/specification
afan algorithm factory object
Returns
newly allocated object, or NULL

Reimplemented from Botan::Engine.

Definition at line 110 of file ossl_md.cpp.

112 {
113#if !defined(OPENSSL_NO_SHA)
114 if(request.algo_name() == "SHA-160")
115 return new EVP_HashFunction(EVP_sha1(), "SHA-160");
116#endif
117
118#if !defined(OPENSSL_NO_SHA256)
119 if(request.algo_name() == "SHA-224")
120 return new EVP_HashFunction(EVP_sha224(), "SHA-224");
121 if(request.algo_name() == "SHA-256")
122 return new EVP_HashFunction(EVP_sha256(), "SHA-256");
123#endif
124
125#if !defined(OPENSSL_NO_SHA512)
126 if(request.algo_name() == "SHA-384")
127 return new EVP_HashFunction(EVP_sha384(), "SHA-384");
128 if(request.algo_name() == "SHA-512")
129 return new EVP_HashFunction(EVP_sha512(), "SHA-512");
130#endif
131
132#if !defined(OPENSSL_NO_MD2)
133 if(request.algo_name() == "MD2")
134 return new EVP_HashFunction(EVP_md2(), "MD2");
135#endif
136
137#if !defined(OPENSSL_NO_MD4)
138 if(request.algo_name() == "MD4")
139 return new EVP_HashFunction(EVP_md4(), "MD4");
140#endif
141
142#if !defined(OPENSSL_NO_MD5)
143 if(request.algo_name() == "MD5")
144 return new EVP_HashFunction(EVP_md5(), "MD5");
145#endif
146
147#if !defined(OPENSSL_NO_RIPEMD)
148 if(request.algo_name() == "RIPEMD-160")
149 return new EVP_HashFunction(EVP_ripemd160(), "RIPEMD-160");
150#endif
151
152 return 0;
153 }

References Botan::SCAN_Name::algo_name(), and find_hash().

Referenced by find_hash().

◆ find_mac()

MessageAuthenticationCode * Botan::Engine::find_mac ( const SCAN_Name & algo_spec,
Algorithm_Factory & af ) const
virtualinherited
Parameters
algo_specthe algorithm name/specification
afan algorithm factory object
Returns
newly allocated object, or NULL

Reimplemented in Botan::Core_Engine, and Botan::Dynamically_Loaded_Engine.

Definition at line 34 of file engine.cpp.

36 {
37 return 0;
38 }

Referenced by provider_name().

◆ find_pbkdf()

PBKDF * Botan::Engine::find_pbkdf ( const SCAN_Name & algo_spec,
Algorithm_Factory & af ) const
virtualinherited
Parameters
algo_specthe algorithm name/specification
afan algorithm factory object
Returns
newly allocated object, or NULL

Reimplemented in Botan::Core_Engine, and Botan::Dynamically_Loaded_Engine.

Definition at line 41 of file engine.cpp.

43 {
44 return 0;
45 }

Referenced by provider_name().

◆ find_stream_cipher()

StreamCipher * Botan::OpenSSL_Engine::find_stream_cipher ( const SCAN_Name & request,
Algorithm_Factory &  ) const
virtual

Look for an OpenSSL-supported stream cipher (ARC4)

Reimplemented from Botan::Engine.

Definition at line 82 of file ossl_arc4.cpp.

84 {
85#if !defined(OPENSSL_NO_RC4)
86 if(request.algo_name() == "ARC4")
87 return new ARC4_OpenSSL(request.arg_as_integer(0, 0));
88 if(request.algo_name() == "RC4_drop")
89 return new ARC4_OpenSSL(768);
90#endif
91
92 return 0;
93 }

References Botan::SCAN_Name::algo_name(), and Botan::SCAN_Name::arg_as_integer().

◆ get_cipher()

Keyed_Filter * Botan::Engine::get_cipher ( const std::string & algo_spec,
Cipher_Dir dir,
Algorithm_Factory & af )
virtualinherited

Return a new cipher object

Parameters
algo_specthe algorithm name/specification
dirspecifies if encryption or decryption is desired
afan algorithm factory object
Returns
newly allocated object, or NULL

Reimplemented in Botan::Core_Engine, and Botan::Dynamically_Loaded_Engine.

Definition at line 54 of file engine.cpp.

57 {
58 return 0;
59 }

Referenced by provider_name().

◆ get_decryption_op()

PK_Ops::Decryption * Botan::OpenSSL_Engine::get_decryption_op ( const Private_Key & key) const
virtual

Return a new operator object for this key, if possible

Parameters
keythe key we want an operator for
Returns
newly allocated operator object, or NULL

Reimplemented from Botan::Engine.

Definition at line 334 of file ossl_pk.cpp.

335 {
336#if defined(BOTAN_HAS_RSA)
337 if(const RSA_PrivateKey* s = dynamic_cast<const RSA_PrivateKey*>(&key))
338 return new OSSL_RSA_Private_Operation(*s);
339#endif
340
341 return 0;
342 }

◆ get_encryption_op()

PK_Ops::Encryption * Botan::OpenSSL_Engine::get_encryption_op ( const Public_Key & key) const
virtual

Return a new operator object for this key, if possible

Parameters
keythe key we want an operator for
Returns
newly allocated operator object, or NULL

Reimplemented from Botan::Engine.

Definition at line 323 of file ossl_pk.cpp.

324 {
325#if defined(BOTAN_HAS_RSA)
326 if(const RSA_PublicKey* s = dynamic_cast<const RSA_PublicKey*>(&key))
327 return new OSSL_RSA_Public_Operation(*s);
328#endif
329
330 return 0;
331 }

◆ get_key_agreement_op()

PK_Ops::Key_Agreement * Botan::OpenSSL_Engine::get_key_agreement_op ( const Private_Key & key) const
virtual

Return a new operator object for this key, if possible

Parameters
keythe key we want an operator for
Returns
newly allocated operator object, or NULL

Reimplemented from Botan::Engine.

Definition at line 280 of file ossl_pk.cpp.

281 {
282#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
283 if(const DH_PrivateKey* dh = dynamic_cast<const DH_PrivateKey*>(&key))
284 return new OSSL_DH_KA_Operation(*dh);
285#endif
286
287 return 0;
288 }

◆ get_signature_op()

PK_Ops::Signature * Botan::OpenSSL_Engine::get_signature_op ( const Private_Key & key) const
virtual

Return a new operator object for this key, if possible

Parameters
keythe key we want an operator for
Returns
newly allocated operator object, or NULL

Reimplemented from Botan::Engine.

Definition at line 291 of file ossl_pk.cpp.

292 {
293#if defined(BOTAN_HAS_RSA)
294 if(const RSA_PrivateKey* s = dynamic_cast<const RSA_PrivateKey*>(&key))
295 return new OSSL_RSA_Private_Operation(*s);
296#endif
297
298#if defined(BOTAN_HAS_DSA)
299 if(const DSA_PrivateKey* s = dynamic_cast<const DSA_PrivateKey*>(&key))
300 return new OSSL_DSA_Signature_Operation(*s);
301#endif
302
303 return 0;
304 }

◆ get_verify_op()

PK_Ops::Verification * Botan::OpenSSL_Engine::get_verify_op ( const Public_Key & key) const
virtual

Return a new operator object for this key, if possible

Parameters
keythe key we want an operator for
Returns
newly allocated operator object, or NULL

Reimplemented from Botan::Engine.

Definition at line 307 of file ossl_pk.cpp.

308 {
309#if defined(BOTAN_HAS_RSA)
310 if(const RSA_PublicKey* s = dynamic_cast<const RSA_PublicKey*>(&key))
311 return new OSSL_RSA_Public_Operation(*s);
312#endif
313
314#if defined(BOTAN_HAS_DSA)
315 if(const DSA_PublicKey* s = dynamic_cast<const DSA_PublicKey*>(&key))
316 return new OSSL_DSA_Verification_Operation(*s);
317#endif
318
319 return 0;
320 }

◆ mod_exp()

Modular_Exponentiator * Botan::OpenSSL_Engine::mod_exp ( const BigInt & n,
Power_Mod::Usage_Hints hints ) const
virtual
Parameters
nthe modulus
hintsany use hints
Returns
newly allocated object, or NULL

Reimplemented from Botan::Engine.

Definition at line 48 of file bn_powm.cpp.

50 {
51 return new OpenSSL_Modular_Exponentiator(n);
52 }

◆ provider_name()

std::string Botan::OpenSSL_Engine::provider_name ( ) const
inlinevirtual

Return the provider name ("openssl")

Implements Botan::Engine.

Definition at line 24 of file openssl_engine.h.

24{ return "openssl"; }
The documentation for this class was generated from the following files:
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