8 #include <botan/sp800_108.h>
9 #include <botan/hmac.h>
16 const uint8_t secret[],
size_t secret_len,
17 const uint8_t salt[],
size_t salt_len,
18 const uint8_t label[],
size_t label_len)
const
20 const std::size_t prf_len = m_prf->output_length();
21 const uint8_t delim = 0;
24 uint32_t length = key_len * 8;
25 uint8_t be_len[4] = { 0 };
29 m_prf->set_key(secret, secret_len);
31 while(p < key + key_len && counter != 0)
33 const std::size_t to_copy = std::min< std::size_t >(key + key_len - p, prf_len);
34 uint8_t be_cnt[4] = { 0 };
38 m_prf->update(be_cnt,4);
39 m_prf->update(label,label_len);
41 m_prf->update(salt,salt_len);
42 m_prf->update(be_len,4);
45 std::move(tmp.begin(), tmp.begin() + to_copy, p);
58 const uint8_t secret[],
size_t secret_len,
59 const uint8_t salt[],
size_t salt_len,
60 const uint8_t label[],
size_t label_len)
const
62 const std::size_t prf_len = m_prf->output_length();
63 const std::size_t iv_len = (salt_len >= prf_len ? prf_len : 0);
64 const uint8_t delim = 0;
68 uint32_t length = key_len * 8;
69 uint8_t be_len[4] = { 0 };
74 m_prf->set_key(secret, secret_len);
76 while(p < key + key_len && counter != 0)
78 const std::size_t to_copy = std::min< std::size_t >(key + key_len - p, prf_len);
79 uint8_t be_cnt[4] = { 0 };
84 m_prf->update(be_cnt,4);
85 m_prf->update(label,label_len);
88 m_prf->update(be_len,4);
91 std::copy(prev.begin(), prev.begin() + to_copy, p);
104 const uint8_t secret[],
size_t secret_len,
105 const uint8_t salt[],
size_t salt_len,
106 const uint8_t label[],
size_t label_len)
const
108 const std::size_t prf_len = m_prf->output_length();
109 const uint8_t delim = 0;
112 uint32_t counter = 1;
113 uint32_t length = key_len * 8;
114 uint8_t be_len[4] = { 0 };
118 m_prf->set_key(secret,secret_len);
121 std::copy(label,label + label_len,std::back_inserter(ai));
122 ai.emplace_back(delim);
123 std::copy(salt,salt + salt_len,std::back_inserter(ai));
124 std::copy(be_len,be_len + 4,std::back_inserter(ai));
126 while(p < key + key_len && counter != 0)
133 const std::size_t to_copy = std::min< std::size_t >(key + key_len - p, prf_len);
134 uint8_t be_cnt[4] = { 0 };
139 m_prf->update(be_cnt,4);
140 m_prf->update(label, label_len);
141 m_prf->update(delim);
142 m_prf->update(salt, salt_len);
143 m_prf->update(be_len,4);
146 std::copy(ki.begin(), ki.begin() + to_copy, p);
void store_be(uint16_t in, uint8_t out[2])
size_t kdf(uint8_t key[], size_t key_len, const uint8_t secret[], size_t secret_len, const uint8_t salt[], size_t salt_len, const uint8_t label[], size_t label_len) const override
std::vector< T, secure_allocator< T >> secure_vector
size_t kdf(uint8_t key[], size_t key_len, const uint8_t secret[], size_t secret_len, const uint8_t salt[], size_t salt_len, const uint8_t label[], size_t label_len) const override
size_t kdf(uint8_t key[], size_t key_len, const uint8_t secret[], size_t secret_len, const uint8_t salt[], size_t salt_len, const uint8_t label[], size_t label_len) const override