5112587681

Committed 29 May 2023 01:55PM UTC coverage: 92.211% (-0.01%) from 92.221%

Build # 5112587681

Build Type

push

github

Committed by

randombit

Commit Message

Merge GH #3560 Update CI builder to use the macOS 13 image

Run Details

75573 of 81957 relevant lines covered (92.21%)

12015603.28 hits per line

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79.31

/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	return "Raw";	3✔
18	}
19
20	/*
21	* EMSA-Raw Encode Operation
22	*/
23	void EMSA_Raw::update(const uint8_t input[], size_t length) { m_message += std::make_pair(input, length); }	814✔
24
25	/*
26	* Return the raw (unencoded) data
27	*/
28	std::vector<uint8_t> EMSA_Raw::raw_data() {	814✔
29	if(m_expected_size && m_message.size() != m_expected_size)	814✔
30	throw Invalid_Argument("EMSA_Raw was configured to use a " + std::to_string(m_expected_size) +	×
31	" byte hash but instead was used for a " + std::to_string(m_message.size()) + " hash");	×
32
33	std::vector<uint8_t> output;	814✔
34	std::swap(m_message, output);	814✔
35	return output;	814✔
36	}
37
38	/*
39	* EMSA-Raw Encode Operation
40	*/
41	std::vector<uint8_t> EMSA_Raw::encoding_of(const std::vector<uint8_t>& msg,	385✔
42	size_t /output_bits/,
43	RandomNumberGenerator& /rng/) {
44	if(m_expected_size && msg.size() != m_expected_size)	385✔
45	throw Invalid_Argument("EMSA_Raw was configured to use a " + std::to_string(m_expected_size) +	×
46	" byte hash but instead was used for a " + std::to_string(msg.size()) + " hash");	×
47
48	return msg;	385✔
49	}
50
51	/*
52	* EMSA-Raw Verify Operation
53	*/
54	bool EMSA_Raw::verify(const std::vector<uint8_t>& coded, const std::vector<uint8_t>& raw, size_t /key_bits/) {	429✔
55	if(m_expected_size && raw.size() != m_expected_size)	429✔
56	return false;
57
58	if(coded.size() == raw.size())	429✔
59	return (coded == raw);	20✔
60
61	if(coded.size() > raw.size())	409✔
62	return false;
63
64	// handle zero padding differences
65	const size_t leading_zeros_expected = raw.size() - coded.size();	389✔
66
67	bool same_modulo_leading_zeros = true;	389✔
68
69	for(size_t i = 0; i != leading_zeros_expected; ++i)	6,434✔
70	if(raw[i])	6,045✔
71	same_modulo_leading_zeros = false;	270✔
72
73	if(!constant_time_compare(coded.data(), raw.data() + leading_zeros_expected, coded.size()))	389✔
74	same_modulo_leading_zeros = false;	×
75
76	return same_modulo_leading_zeros;
77	}
78
79	} // namespace Botan

randombit / botan / 5112587681

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