Botan  2.7.0
Crypto and TLS for C++11
kdf2.h
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1 /*
2 * KDF2
3 * (C) 1999-2007 Jack Lloyd
4 *
5 * Botan is released under the Simplified BSD License (see license.txt)
6 */
7 
8 #ifndef BOTAN_KDF2_H_
9 #define BOTAN_KDF2_H_
10 
11 #include <botan/kdf.h>
12 #include <botan/hash.h>
13 
14 namespace Botan {
15 
16 /**
17 * KDF2, from IEEE 1363
18 */
19 class BOTAN_PUBLIC_API(2,0) KDF2 final : public KDF
20  {
21  public:
22  std::string name() const override { return "KDF2(" + m_hash->name() + ")"; }
23 
24  KDF* clone() const override { return new KDF2(m_hash->clone()); }
25 
26  size_t kdf(uint8_t key[], size_t key_len,
27  const uint8_t secret[], size_t secret_len,
28  const uint8_t salt[], size_t salt_len,
29  const uint8_t label[], size_t label_len) const override;
30 
31  /**
32  * @param h hash function to use
33  */
34  explicit KDF2(HashFunction* h) : m_hash(h) {}
35  private:
36  std::unique_ptr<HashFunction> m_hash;
37  };
38 
39 }
40 
41 #endif
KDF * clone() const override
Definition: kdf2.h:24
#define BOTAN_PUBLIC_API(maj, min)
Definition: compiler.h:27
size_t salt_len
Definition: x509_obj.cpp:26
Definition: alg_id.cpp:13
Definition: kdf.h:20
KDF2(HashFunction *h)
Definition: kdf2.h:34
std::string name() const override
Definition: kdf2.h:22