6057704243

Committed 02 Sep 2023 10:05AM UTC coverage: 91.729% (+0.01%) from 91.718%

Build # 6057704243

Build Type

Pull #3680

github

Committed by

web-flow

Commit Message

Merge fc59ca615 into 2c2ff3c71

Pull Request Pull Request #3680: Kuznyechik block cipher

Run Details

78780 of 85883 relevant lines covered (91.73%)

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80.65

/src/lib/pk_pad/emsa_raw/emsa_raw.cpp

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

#include <botan/internal/emsa_raw.h>

#include <botan/exceptn.h>

namespace Botan {

std::string EMSA_Raw::name() const {
   if(m_expected_size > 0) {
      return "Raw(" + std::to_string(m_expected_size) + ")";
   }
   return "Raw";
}

/*
* EMSA-Raw Encode Operation
*/
void EMSA_Raw::update(const uint8_t input[], size_t length) {
   m_message += std::make_pair(input, length);
}

/*
* Return the raw (unencoded) data
*/
std::vector<uint8_t> EMSA_Raw::raw_data() {
   if(m_expected_size && m_message.size() != m_expected_size) {
      throw Invalid_Argument("EMSA_Raw was configured to use a " + std::to_string(m_expected_size) +
                             " byte hash but instead was used for a " + std::to_string(m_message.size()) + " hash");
   }

   std::vector<uint8_t> output;
   std::swap(m_message, output);
   return output;
}

/*
* EMSA-Raw Encode Operation
*/
std::vector<uint8_t> EMSA_Raw::encoding_of(const std::vector<uint8_t>& msg,
                                           size_t /*output_bits*/,
                                           RandomNumberGenerator& /*rng*/) {
   if(m_expected_size && msg.size() != m_expected_size) {
      throw Invalid_Argument("EMSA_Raw was configured to use a " + std::to_string(m_expected_size) +
                             " byte hash but instead was used for a " + std::to_string(msg.size()) + " hash");
   }

   return msg;
}

/*
* EMSA-Raw Verify Operation
*/
bool EMSA_Raw::verify(const std::vector<uint8_t>& coded, const std::vector<uint8_t>& raw, size_t /*key_bits*/) {
   if(m_expected_size && raw.size() != m_expected_size) {
      return false;
   }

   if(coded.size() == raw.size()) {
      return (coded == raw);
   }

   if(coded.size() > raw.size()) {
      return false;
   }

   // handle zero padding differences
   const size_t leading_zeros_expected = raw.size() - coded.size();

   bool same_modulo_leading_zeros = true;

   for(size_t i = 0; i != leading_zeros_expected; ++i) {
      if(raw[i]) {
         same_modulo_leading_zeros = false;
      }
   }

   if(!constant_time_compare(coded.data(), raw.data() + leading_zeros_expected, coded.size())) {
      same_modulo_leading_zeros = false;
   }

   return same_modulo_leading_zeros;
}

}  // namespace Botan

1	/*
2	* EMSA-Raw
3	* (C) 1999-2007 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/internal/emsa_raw.h>
9
10	#include <botan/exceptn.h>
11
12	namespace Botan {
13
14	std::string EMSA_Raw::name() const {	3✔
15	if(m_expected_size > 0) {	3✔
16	return "Raw(" + std::to_string(m_expected_size) + ")";	×
17	}
18	return "Raw";	3✔
19	}
20
21	/*
22	* EMSA-Raw Encode Operation
23	*/
24	void EMSA_Raw::update(const uint8_t input[], size_t length) {	814✔
25	m_message += std::make_pair(input, length);	814✔
26	}	814✔
27
28	/*
29	* Return the raw (unencoded) data
30	*/
31	std::vector<uint8_t> EMSA_Raw::raw_data() {	814✔
32	if(m_expected_size && m_message.size() != m_expected_size) {	814✔
33	throw Invalid_Argument("EMSA_Raw was configured to use a " + std::to_string(m_expected_size) +	×
34	" byte hash but instead was used for a " + std::to_string(m_message.size()) + " hash");	×
35	}
36
37	std::vector<uint8_t> output;	814✔
38	std::swap(m_message, output);	814✔
39	return output;	814✔
40	}
41
42	/*
43	* EMSA-Raw Encode Operation
44	*/
45	std::vector<uint8_t> EMSA_Raw::encoding_of(const std::vector<uint8_t>& msg,	385✔
46	size_t /output_bits/,
47	RandomNumberGenerator& /rng/) {
48	if(m_expected_size && msg.size() != m_expected_size) {	385✔
49	throw Invalid_Argument("EMSA_Raw was configured to use a " + std::to_string(m_expected_size) +	×
50	" byte hash but instead was used for a " + std::to_string(msg.size()) + " hash");	×
51	}
52
53	return msg;	385✔
54	}
55
56	/*
57	* EMSA-Raw Verify Operation
58	*/
59	bool EMSA_Raw::verify(const std::vector<uint8_t>& coded, const std::vector<uint8_t>& raw, size_t /key_bits/) {	429✔
60	if(m_expected_size && raw.size() != m_expected_size) {	429✔
61	return false;
62	}
63
64	if(coded.size() == raw.size()) {	429✔
65	return (coded == raw);	20✔
66	}
67
68	if(coded.size() > raw.size()) {	409✔
69	return false;
70	}
71
72	// handle zero padding differences
73	const size_t leading_zeros_expected = raw.size() - coded.size();	389✔
74
75	bool same_modulo_leading_zeros = true;	389✔
76
77	for(size_t i = 0; i != leading_zeros_expected; ++i) {	6,434✔
78	if(raw[i]) {	6,045✔
79	same_modulo_leading_zeros = false;	270✔
80	}
81	}
82
83	if(!constant_time_compare(coded.data(), raw.data() + leading_zeros_expected, coded.size())) {	389✔
84	same_modulo_leading_zeros = false;	×
85	}
86
87	return same_modulo_leading_zeros;
88	}
89
90	} // namespace Botan

randombit / botan / 6057704243

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