21768358452

Committed 06 Feb 2026 10:35PM UTC coverage: 90.064% (-0.003%) from 90.067%

Build # 21768358452

Build Type

Pull #5289

github

Committed by

web-flow

Commit Message

Merge f589db195 into 8ea0ca252

Pull Request Pull Request #5289: Further misc header reductions, forward declarations, etc

Run Details

102238 of 113517 relevant lines covered (90.06%)

11357432.36 hits per line

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92.16

/src/tests/test_rngs.cpp

/*
* (C) 2023 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "test_rng.h"

#if defined(BOTAN_HAS_AES)
   #include <botan/block_cipher.h>
   #include <botan/internal/loadstor.h>
#endif

#include <array>

namespace Botan_Tests {

#if defined(BOTAN_HAS_AES)

CTR_DRBG_AES256::~CTR_DRBG_AES256() = default;

void CTR_DRBG_AES256::clear() {
   const uint8_t zeros[32] = {0};
   m_cipher->set_key(zeros, 32);
   m_V0 = 0;
   m_V1 = 0;
}

void CTR_DRBG_AES256::fill_bytes_with_input(std::span<uint8_t> output, std::span<const uint8_t> input) {
   if(!input.empty()) {
      if(input.size() != 48) {
         throw Test_Error("CTR_DRBG(AES-256) assumes 48 byte input");
      }

      clear();
      update(input);
   }

   if(!output.empty()) {
      const size_t full_blocks = output.size() / 16;
      const size_t leftover_bytes = output.size() % 16;

      for(size_t i = 0; i != full_blocks; ++i) {
         incr_V_into(output.subspan(i * 16, 16));
      }

      m_cipher->encrypt_n(output.data(), output.data(), full_blocks);

      if(leftover_bytes > 0) {
         uint8_t block[16];
         incr_V_into(block);
         m_cipher->encrypt(block);
         Botan::copy_mem(output.subspan(full_blocks * 16).data(), block, leftover_bytes);
      }

      update({});
   }
}

CTR_DRBG_AES256::CTR_DRBG_AES256(std::span<const uint8_t> seed) :
      m_cipher(Botan::BlockCipher::create_or_throw("AES-256")) {
   add_entropy(seed);
}

void CTR_DRBG_AES256::incr_V_into(std::span<uint8_t> output) {
   BOTAN_ASSERT_NOMSG(output.size() == 16);

   m_V1 += 1;
   if(m_V1 == 0) {
      m_V0 += 1;
   }

   Botan::store_be<uint64_t>(output.data(), m_V0, m_V1);
}

void CTR_DRBG_AES256::update(std::span<const uint8_t> provided_data) {
   std::array<uint8_t, 3 * 16> temp = {0};

   const std::span<uint8_t> t(temp);
   for(size_t i = 0; i != 3; ++i) {
      incr_V_into(t.subspan(16 * i, 16));
   }

   m_cipher->encrypt_n(temp.data(), temp.data(), 3);

   if(!provided_data.empty()) {
      BOTAN_ASSERT_NOMSG(provided_data.size() == temp.size());
      for(size_t i = 0; i != provided_data.size(); i++) {
         temp[i] ^= provided_data[i];
      }
   }

   m_cipher->set_key(std::span(temp).first(32));

   m_V0 = Botan::load_be<uint64_t>(temp.data() + 32, 0);
   m_V1 = Botan::load_be<uint64_t>(temp.data() + 32, 1);
}

#endif

}  // namespace Botan_Tests

1	/*
2	* (C) 2023 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include "test_rng.h"
8
9	#if defined(BOTAN_HAS_AES)
10	#include <botan/block_cipher.h>
11	#include <botan/internal/loadstor.h>
12	#endif
13
14	#include <array>
15
16	namespace Botan_Tests {
17
18	#if defined(BOTAN_HAS_AES)
19
20	CTR_DRBG_AES256::~CTR_DRBG_AES256() = default;	3,810✔
21
22	void CTR_DRBG_AES256::clear() {	1,917✔
23	const uint8_t zeros[32] = {0};	1,917✔
24	m_cipher->set_key(zeros, 32);	×
25	m_V0 = 0;	1,917✔
26	m_V1 = 0;	1,917✔
27	}	×
28
29	void CTR_DRBG_AES256::fill_bytes_with_input(std::span<uint8_t> output, std::span<const uint8_t> input) {	6,883✔
30	if(!input.empty()) {	6,883✔
31	if(input.size() != 48) {	1,917✔
32	throw Test_Error("CTR_DRBG(AES-256) assumes 48 byte input");	×
33	}
34
35	clear();	1,917✔
36	update(input);	1,917✔
37	}
38
39	if(!output.empty()) {	6,883✔
40	const size_t full_blocks = output.size() / 16;	4,966✔
41	const size_t leftover_bytes = output.size() % 16;	4,966✔
42
43	for(size_t i = 0; i != full_blocks; ++i) {	52,788✔
44	incr_V_into(output.subspan(i * 16, 16));	47,822✔
45	}
46
47	m_cipher->encrypt_n(output.data(), output.data(), full_blocks);	4,966✔
48
49	if(leftover_bytes > 0) {	4,966✔
50	uint8_t block[16];	566✔
51	incr_V_into(block);	566✔
52	m_cipher->encrypt(block);	566✔
53	Botan::copy_mem(output.subspan(full_blocks * 16).data(), block, leftover_bytes);	566✔
54	}
55
56	update({});	4,966✔
57	}
58	}	6,883✔
59
60	CTR_DRBG_AES256::CTR_DRBG_AES256(std::span<const uint8_t> seed) :	1,917✔
61	m_cipher(Botan::BlockCipher::create_or_throw("AES-256")) {	1,917✔
62	add_entropy(seed);	1,917✔
63	}	1,917✔
64
65	void CTR_DRBG_AES256::incr_V_into(std::span<uint8_t> output) {	69,037✔
66	BOTAN_ASSERT_NOMSG(output.size() == 16);	69,037✔
67
68	m_V1 += 1;	69,037✔
69	if(m_V1 == 0) {	69,037✔
70	m_V0 += 1;	×
71	}
72
73	Botan::store_be<uint64_t>(output.data(), m_V0, m_V1);	69,037✔
74	}	69,037✔
75
76	void CTR_DRBG_AES256::update(std::span<const uint8_t> provided_data) {	6,883✔
77	std::array<uint8_t, 3 * 16> temp = {0};	6,883✔
78
79	const std::span<uint8_t> t(temp);	6,883✔
80	for(size_t i = 0; i != 3; ++i) {	27,532✔
81	incr_V_into(t.subspan(16 * i, 16));	20,649✔
82	}
83
84	m_cipher->encrypt_n(temp.data(), temp.data(), 3);	6,883✔
85
86	if(!provided_data.empty()) {	6,883✔
87	BOTAN_ASSERT_NOMSG(provided_data.size() == temp.size());	1,917✔
88	for(size_t i = 0; i != provided_data.size(); i++) {	93,933✔
89	temp[i] ^= provided_data[i];	92,016✔
90	}
91	}
92
93	m_cipher->set_key(std::span(temp).first(32));	6,883✔
94
95	m_V0 = Botan::load_be<uint64_t>(temp.data() + 32, 0);	6,883✔
96	m_V1 = Botan::load_be<uint64_t>(temp.data() + 32, 1);	6,883✔
97	}	6,883✔
98
99	#endif
100
101	} // namespace Botan_Tests

randombit / botan / 21768358452

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