5079590438

Committed 25 May 2023 12:28PM UTC coverage: 92.228% (+0.5%) from 91.723%

Build # 5079590438

Build Type

Pull #3502

github

Pull Request Pull Request #3502: Apply clang-format to the codebase

Run Details

75589 of 81959 relevant lines covered (92.23%)

12139530.51 hits per line

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97.37

/src/lib/filters/cipher_filter.cpp

/*
* Filter interface for Cipher_Modes
* (C) 2013,2014,2017 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/filters.h>

#include <botan/internal/rounding.h>

namespace Botan {

namespace {

size_t choose_update_size(size_t update_granularity) {
   const size_t target_size = 1024;

   if(update_granularity >= target_size)
      return update_granularity;

   return round_up(target_size, update_granularity);
}

}

Cipher_Mode_Filter::Cipher_Mode_Filter(Cipher_Mode* mode) :
      Buffered_Filter(choose_update_size(mode->ideal_granularity()), mode->minimum_final_size()),
      m_mode(mode),
      m_nonce(mode->default_nonce_length()),
      m_buffer(m_mode->ideal_granularity()) {}

std::string Cipher_Mode_Filter::name() const { return m_mode->name(); }

void Cipher_Mode_Filter::set_iv(const InitializationVector& iv) { m_nonce = unlock(iv.bits_of()); }

void Cipher_Mode_Filter::set_key(const SymmetricKey& key) { m_mode->set_key(key); }

Key_Length_Specification Cipher_Mode_Filter::key_spec() const { return m_mode->key_spec(); }

bool Cipher_Mode_Filter::valid_iv_length(size_t length) const { return m_mode->valid_nonce_length(length); }

void Cipher_Mode_Filter::write(const uint8_t input[], size_t input_length) {
   Buffered_Filter::write(input, input_length);
}

void Cipher_Mode_Filter::end_msg() { Buffered_Filter::end_msg(); }

void Cipher_Mode_Filter::start_msg() {
   if(m_nonce.empty() && !m_mode->valid_nonce_length(0))
      throw Invalid_State("Cipher " + m_mode->name() + " requires a fresh nonce for each message");

   m_mode->start(m_nonce);
   m_nonce.clear();
}

void Cipher_Mode_Filter::buffered_block(const uint8_t input[], size_t input_length) {
   while(input_length) {
      const size_t take = std::min(m_mode->ideal_granularity(), input_length);

      m_buffer.assign(input, input + take);
      m_mode->update(m_buffer);

      send(m_buffer);

      input += take;
      input_length -= take;
   }
}

void Cipher_Mode_Filter::buffered_final(const uint8_t input[], size_t input_length) {
   secure_vector<uint8_t> buf(input, input + input_length);
   m_mode->finish(buf);
   send(buf);
}

}

1	/*
2	* Filter interface for Cipher_Modes
3	* (C) 2013,2014,2017 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/filters.h>
9
10	#include <botan/internal/rounding.h>
11
12	namespace Botan {
13
14	namespace {
15
16	size_t choose_update_size(size_t update_granularity) {	4✔
17	const size_t target_size = 1024;	4✔
18
19	if(update_granularity >= target_size)	4✔
20	return update_granularity;
21
22	return round_up(target_size, update_granularity);	4✔
23	}
24
25	}
26
27	Cipher_Mode_Filter::Cipher_Mode_Filter(Cipher_Mode* mode) :	4✔
28	Buffered_Filter(choose_update_size(mode->ideal_granularity()), mode->minimum_final_size()),	8✔
29	m_mode(mode),	4✔
30	m_nonce(mode->default_nonce_length()),	4✔
31	m_buffer(m_mode->ideal_granularity()) {}	8✔
32
33	std::string Cipher_Mode_Filter::name() const { return m_mode->name(); }	1✔
34
35	void Cipher_Mode_Filter::set_iv(const InitializationVector& iv) { m_nonce = unlock(iv.bits_of()); }	10✔
36
37	void Cipher_Mode_Filter::set_key(const SymmetricKey& key) { m_mode->set_key(key); }	4✔
38
39	Key_Length_Specification Cipher_Mode_Filter::key_spec() const { return m_mode->key_spec(); }	2✔
40
41	bool Cipher_Mode_Filter::valid_iv_length(size_t length) const { return m_mode->valid_nonce_length(length); }	2✔
42
43	void Cipher_Mode_Filter::write(const uint8_t input[], size_t input_length) {	37✔
44	Buffered_Filter::write(input, input_length);	37✔
45	}	37✔
46
47	void Cipher_Mode_Filter::end_msg() { Buffered_Filter::end_msg(); }	33✔
48
49	void Cipher_Mode_Filter::start_msg() {	33✔
50	if(m_nonce.empty() && !m_mode->valid_nonce_length(0))	33✔
51	throw Invalid_State("Cipher " + m_mode->name() + " requires a fresh nonce for each message");	×
52
53	m_mode->start(m_nonce);	33✔
54	m_nonce.clear();	33✔
55	}	33✔
56
57	void Cipher_Mode_Filter::buffered_block(const uint8_t input[], size_t input_length) {	2✔
58	while(input_length) {	10✔
59	const size_t take = std::min(m_mode->ideal_granularity(), input_length);	8✔
60
61	m_buffer.assign(input, input + take);	8✔
62	m_mode->update(m_buffer);	8✔
63
64	send(m_buffer);	8✔
65
66	input += take;	8✔
67	input_length -= take;	8✔
68	}
69	}	2✔
70
71	void Cipher_Mode_Filter::buffered_final(const uint8_t input[], size_t input_length) {	33✔
72	secure_vector<uint8_t> buf(input, input + input_length);	33✔
73	m_mode->finish(buf);	33✔
74	send(buf);	66✔
75	}	33✔
76
77	}

randombit / botan / 5079590438

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