5123321399

Committed 30 May 2023 04:06PM UTC coverage: 92.213% (+0.004%) from 92.209%

Build # 5123321399

Build Type

Pull #3558

github

Committed by

web-flow

Commit Message

Merge dd72f7389 into 057bcbc35

Pull Request Pull Request #3558: Add braces around all if/else statements

Run Details

75602 of 81986 relevant lines covered (92.21%)

11859779.3 hits per line

Source File
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94.74

/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) { rng.random_vec(m_data, len); }	11✔
20
21	/*
22	* Create an OctetString from a hex string
23	*/
24	OctetString::OctetString(std::string_view hex_string) {	19,343✔
25	if(!hex_string.empty()) {	19,343✔
26	m_data.resize(1 + hex_string.length() / 2);	15,076✔
27	m_data.resize(hex_decode(m_data.data(), hex_string));	15,076✔
28	}
29	}	19,343✔
30
31	/*
32	* Create an OctetString from a byte string
33	*/
34	OctetString::OctetString(const uint8_t in[], size_t n) { m_data.assign(in, in + n); }	4,394✔
35
36	namespace {
37
38	uint8_t odd_parity_of(uint8_t x) {	16✔
39	uint8_t f = x \| 0x01;	16✔
40	f ^= (f >> 4);	16✔
41	f ^= (f >> 2);	16✔
42	f ^= (f >> 1);	16✔
43
44	return (x & 0xFE) ^ (f & 0x01);	16✔
45	}
46
47	} // namespace
48
49	/*
50	* Set the parity of each key byte to odd
51	*/
52	void OctetString::set_odd_parity() {	2✔
53	for(size_t j = 0; j != m_data.size(); ++j) {	18✔
54	m_data[j] = odd_parity_of(m_data[j]);	16✔
55	}
56	}	2✔
57
58	/*
59	* Hex encode an OctetString
60	*/
61	std::string OctetString::to_string() const { return hex_encode(m_data.data(), m_data.size()); }	108✔
62
63	/*
64	* XOR Operation for OctetStrings
65	*/
66	OctetString& OctetString::operator^=(const OctetString& k) {	1✔
67	if(&k == this) {	1✔
68	zeroise(m_data);	×
69	return (*this);	×
70	}
71	xor_buf(m_data.data(), k.begin(), std::min(length(), k.length()));	1✔
72	return (*this);	1✔
73	}
74
75	/*
76	* Equality Operation for OctetStrings
77	*/
78	bool operator==(const OctetString& s1, const OctetString& s2) { return (s1.bits_of() == s2.bits_of()); }	384✔
79
80	/*
81	* Unequality Operation for OctetStrings
82	*/
83	bool operator!=(const OctetString& s1, const OctetString& s2) { return !(s1 == s2); }	18✔
84
85	/*
86	* Append Operation for OctetStrings
87	*/
88	OctetString operator+(const OctetString& k1, const OctetString& k2) {	1✔
89	secure_vector<uint8_t> out;	1✔
90	out += k1.bits_of();	1✔
91	out += k2.bits_of();	1✔
92	return OctetString(out);	1✔
93	}	1✔
94
95	/*
96	* XOR Operation for OctetStrings
97	*/
98	OctetString operator^(const OctetString& k1, const OctetString& k2) {	3✔
99	secure_vector<uint8_t> out(std::max(k1.length(), k2.length()));	3✔
100
101	copy_mem(out.data(), k1.begin(), k1.length());	3✔
102	xor_buf(out.data(), k2.begin(), k2.length());	3✔
103	return OctetString(out);	3✔
104	}	3✔
105
106	} // namespace Botan

randombit / botan / 5123321399

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