5230455705

Committed 10 Jun 2023 02:30PM UTC coverage: 91.715% (-0.03%) from 91.746%

Build # 5230455705

Build Type

push

github

Committed by

randombit

Commit Message

Merge GH #3584 Change clang-format AllowShortFunctionsOnASingleLine config from All to Inline

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95.56

/src/lib/base/symkey.cpp

/*
* OctetString
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/symkey.h>

#include <botan/hex.h>
#include <botan/rng.h>
#include <algorithm>

namespace Botan {

/*
* Create an OctetString from RNG output
*/
OctetString::OctetString(RandomNumberGenerator& rng, size_t len) {
   rng.random_vec(m_data, len);
}

/*
* Create an OctetString from a hex string
*/
OctetString::OctetString(std::string_view hex_string) {
   if(!hex_string.empty()) {
      m_data.resize(1 + hex_string.length() / 2);
      m_data.resize(hex_decode(m_data.data(), hex_string));
   }
}

/*
* Create an OctetString from a byte string
*/
OctetString::OctetString(const uint8_t in[], size_t n) {
   m_data.assign(in, in + n);
}

namespace {

uint8_t odd_parity_of(uint8_t x) {
   uint8_t f = x | 0x01;
   f ^= (f >> 4);
   f ^= (f >> 2);
   f ^= (f >> 1);

   return (x & 0xFE) ^ (f & 0x01);
}

}  // namespace

/*
* Set the parity of each key byte to odd
*/
void OctetString::set_odd_parity() {
   for(size_t j = 0; j != m_data.size(); ++j) {
      m_data[j] = odd_parity_of(m_data[j]);
   }
}

/*
* Hex encode an OctetString
*/
std::string OctetString::to_string() const {
   return hex_encode(m_data.data(), m_data.size());
}

/*
* XOR Operation for OctetStrings
*/
OctetString& OctetString::operator^=(const OctetString& k) {
   if(&k == this) {
      zeroise(m_data);
      return (*this);
   }
   xor_buf(m_data.data(), k.begin(), std::min(length(), k.length()));
   return (*this);
}

/*
* Equality Operation for OctetStrings
*/
bool operator==(const OctetString& s1, const OctetString& s2) {
   return (s1.bits_of() == s2.bits_of());
}

/*
* Unequality Operation for OctetStrings
*/
bool operator!=(const OctetString& s1, const OctetString& s2) {
   return !(s1 == s2);
}

/*
* Append Operation for OctetStrings
*/
OctetString operator+(const OctetString& k1, const OctetString& k2) {
   secure_vector<uint8_t> out;
   out += k1.bits_of();
   out += k2.bits_of();
   return OctetString(out);
}

/*
* XOR Operation for OctetStrings
*/
OctetString operator^(const OctetString& k1, const OctetString& k2) {
   secure_vector<uint8_t> out(std::max(k1.length(), k2.length()));

   copy_mem(out.data(), k1.begin(), k1.length());
   xor_buf(out.data(), k2.begin(), k2.length());
   return OctetString(out);
}

}  // namespace Botan

1	/*
2	* OctetString
3	* (C) 1999-2007 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/symkey.h>
9
10	#include <botan/hex.h>
11	#include <botan/rng.h>
12	#include <algorithm>
13
14	namespace Botan {
15
16	/*
17	* Create an OctetString from RNG output
18	*/
19	OctetString::OctetString(RandomNumberGenerator& rng, size_t len) {	11✔
20	rng.random_vec(m_data, len);	11✔
21	}	11✔
22
23	/*
24	* Create an OctetString from a hex string
25	*/
26	OctetString::OctetString(std::string_view hex_string) {	19,341✔
27	if(!hex_string.empty()) {	19,341✔
28	m_data.resize(1 + hex_string.length() / 2);	15,074✔
29	m_data.resize(hex_decode(m_data.data(), hex_string));	15,074✔
30	}
31	}	19,341✔
32
33	/*
34	* Create an OctetString from a byte string
35	*/
36	OctetString::OctetString(const uint8_t in[], size_t n) {	2,197✔
37	m_data.assign(in, in + n);	2,197✔
38	}	2,197✔
39
40	namespace {
41
42	uint8_t odd_parity_of(uint8_t x) {	16✔
43	uint8_t f = x \| 0x01;	16✔
44	f ^= (f >> 4);	16✔
45	f ^= (f >> 2);	16✔
46	f ^= (f >> 1);	16✔
47
48	return (x & 0xFE) ^ (f & 0x01);	16✔
49	}
50
51	} // namespace
52
53	/*
54	* Set the parity of each key byte to odd
55	*/
56	void OctetString::set_odd_parity() {	2✔
57	for(size_t j = 0; j != m_data.size(); ++j) {	18✔
58	m_data[j] = odd_parity_of(m_data[j]);	16✔
59	}
60	}	2✔
61
62	/*
63	* Hex encode an OctetString
64	*/
65	std::string OctetString::to_string() const {	108✔
66	return hex_encode(m_data.data(), m_data.size());	108✔
67	}
68
69	/*
70	* XOR Operation for OctetStrings
71	*/
72	OctetString& OctetString::operator^=(const OctetString& k) {	1✔
73	if(&k == this) {	1✔
74	zeroise(m_data);	×
75	return (*this);	×
76	}
77	xor_buf(m_data.data(), k.begin(), std::min(length(), k.length()));	1✔
78	return (*this);	1✔
79	}
80
81	/*
82	* Equality Operation for OctetStrings
83	*/
84	bool operator==(const OctetString& s1, const OctetString& s2) {	129✔
85	return (s1.bits_of() == s2.bits_of());	387✔
86	}
87
88	/*
89	* Unequality Operation for OctetStrings
90	*/
91	bool operator!=(const OctetString& s1, const OctetString& s2) {	19✔
92	return !(s1 == s2);	19✔
93	}
94
95	/*
96	* Append Operation for OctetStrings
97	*/
98	OctetString operator+(const OctetString& k1, const OctetString& k2) {	1✔
99	secure_vector<uint8_t> out;	1✔
100	out += k1.bits_of();	1✔
101	out += k2.bits_of();	1✔
102	return OctetString(out);	1✔
103	}	1✔
104
105	/*
106	* XOR Operation for OctetStrings
107	*/
108	OctetString operator^(const OctetString& k1, const OctetString& k2) {	3✔
109	secure_vector<uint8_t> out(std::max(k1.length(), k2.length()));	3✔
110
111	copy_mem(out.data(), k1.begin(), k1.length());	3✔
112	xor_buf(out.data(), k2.begin(), k2.length());	3✔
113	return OctetString(out);	3✔
114	}	3✔
115
116	} // namespace Botan

randombit / botan / 5230455705

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