Botan  1.11.26
Public Types | Public Member Functions | Static Public Member Functions | List of all members
Botan::AES_192_NI Class Referencefinal

#include <aes_ni.h>

Inheritance diagram for Botan::AES_192_NI:
Botan::Block_Cipher_Fixed_Params< 16, 24 > Botan::BlockCipher Botan::SymmetricAlgorithm

Public Types

enum  
 
typedef SCAN_Name Spec
 

Public Member Functions

size_t block_size () const override
 
void clear () override
 
BlockCipherclone () const override
 
void decrypt (const byte in[], byte out[]) const
 
void decrypt (byte block[]) const
 
template<typename Alloc >
void decrypt (std::vector< byte, Alloc > &block) const
 
template<typename Alloc , typename Alloc2 >
void decrypt (const std::vector< byte, Alloc > &in, std::vector< byte, Alloc2 > &out) const
 
void decrypt_n (const byte in[], byte out[], size_t blocks) const override
 
void encrypt (const byte in[], byte out[]) const
 
void encrypt (byte block[]) const
 
template<typename Alloc >
void encrypt (std::vector< byte, Alloc > &block) const
 
template<typename Alloc , typename Alloc2 >
void encrypt (const std::vector< byte, Alloc > &in, std::vector< byte, Alloc2 > &out) const
 
void encrypt_n (const byte in[], byte out[], size_t blocks) const override
 
Key_Length_Specification key_spec () const override
 
size_t maximum_keylength () const
 
size_t minimum_keylength () const
 
std::string name () const override
 
size_t parallel_bytes () const
 
size_t parallelism () const override
 
void set_key (const SymmetricKey &key)
 
template<typename Alloc >
void set_key (const std::vector< byte, Alloc > &key)
 
void set_key (const byte key[], size_t length)
 
bool valid_keylength (size_t length) const
 

Static Public Member Functions

static std::unique_ptr< BlockCiphercreate (const std::string &algo_spec, const std::string &provider="")
 
static std::vector< std::string > providers (const std::string &algo_spec)
 

Detailed Description

AES-192 using AES-NI

Definition at line 38 of file aes_ni.h.

Member Typedef Documentation

Definition at line 22 of file block_cipher.h.

Member Enumeration Documentation

anonymous enum
inherited

Member Function Documentation

size_t Botan::Block_Cipher_Fixed_Params< BS, KMIN, 0 , 1 >::block_size ( ) const
inlineoverridevirtualinherited
Returns
block size of this algorithm

Implements Botan::BlockCipher.

Definition at line 169 of file block_cipher.h.

169 { return BS; }
void Botan::AES_192_NI::clear ( )
overridevirtual

Implements Botan::SymmetricAlgorithm.

Definition at line 533 of file aes_ni.cpp.

References Botan::zap().

534  {
535  zap(m_EK);
536  zap(m_DK);
537  }
void zap(std::vector< T, Alloc > &vec)
Definition: secmem.h:196
BlockCipher* Botan::AES_192_NI::clone ( ) const
inlineoverridevirtual
Returns
new object representing the same algorithm as *this

Implements Botan::BlockCipher.

Definition at line 48 of file aes_ni.h.

48 { return new AES_192_NI; }
std::unique_ptr< BlockCipher > Botan::BlockCipher::create ( const std::string &  algo_spec,
const std::string &  provider = "" 
)
staticinherited

Create an instance based on a name Will return a null pointer if the algo/provider combination cannot be found. If provider is empty then best available is chosen.

Definition at line 150 of file block_cipher.cpp.

Referenced by Botan::TLS::Connection_Cipher_State::Connection_Cipher_State(), Botan::get_block_cipher(), Botan::Cascade_Cipher::make(), Botan::CBC_MAC::make(), Botan::CTR_BE::make(), Botan::OFB::make(), Botan::CMAC::make(), Botan::make_block_cipher(), Botan::make_block_cipher_mode(), Botan::make_block_cipher_mode_len(), Botan::make_block_cipher_mode_len2(), Botan::rfc3394_keyunwrap(), and Botan::rfc3394_keywrap().

152  {
153  return std::unique_ptr<BlockCipher>(make_a<BlockCipher>(algo_spec, provider));
154  }
void Botan::BlockCipher::decrypt ( const byte  in[],
byte  out[] 
) const
inlineinherited

Decrypt a block.

Parameters
inThe ciphertext block to be decypted as a byte array. Must be of length block_size().
outThe byte array designated to hold the decrypted block. Must be of length block_size().

Definition at line 72 of file block_cipher.h.

Referenced by Botan::DESX::decrypt_n(), Botan::XTS_Decryption::finish(), Botan::CTS_Decryption::finish(), and Botan::TLS::write_record().

73  { decrypt_n(in, out, 1); }
virtual void decrypt_n(const byte in[], byte out[], size_t blocks) const =0
void Botan::BlockCipher::decrypt ( byte  block[]) const
inlineinherited

Decrypt a block.

Parameters
blockthe ciphertext block to be decrypted Must be of length block_size(). Will hold the result when the function has finished.

Definition at line 89 of file block_cipher.h.

89 { decrypt_n(block, block, 1); }
virtual void decrypt_n(const byte in[], byte out[], size_t blocks) const =0
template<typename Alloc >
void Botan::BlockCipher::decrypt ( std::vector< byte, Alloc > &  block) const
inlineinherited

Decrypt one or more blocks

Parameters
blockthe input/output buffer (multiple of block_size())

Definition at line 106 of file block_cipher.h.

107  {
108  return decrypt_n(block.data(), block.data(), block.size() / block_size());
109  }
virtual void decrypt_n(const byte in[], byte out[], size_t blocks) const =0
virtual size_t block_size() const =0
template<typename Alloc , typename Alloc2 >
void Botan::BlockCipher::decrypt ( const std::vector< byte, Alloc > &  in,
std::vector< byte, Alloc2 > &  out 
) const
inlineinherited

Decrypt one or more blocks

Parameters
inthe input buffer (multiple of block_size())
outthe output buffer (same size as in)

Definition at line 129 of file block_cipher.h.

131  {
132  return decrypt_n(in.data(), out.data(), in.size() / block_size());
133  }
virtual void decrypt_n(const byte in[], byte out[], size_t blocks) const =0
virtual size_t block_size() const =0
void Botan::AES_192_NI::decrypt_n ( const byte  in[],
byte  out[],
size_t  blocks 
) const
overridevirtual

Decrypt one or more blocks

Parameters
inthe input buffer (multiple of block_size())
outthe output buffer (same size as in)
blocksthe number of blocks to process

Implements Botan::BlockCipher.

Definition at line 402 of file aes_ni.cpp.

References AES_192_key_exp, AES_DEC_4_LAST_ROUNDS, AES_DEC_4_ROUNDS, and Botan::load_le().

403  {
404  const __m128i* in_mm = reinterpret_cast<const __m128i*>(in);
405  __m128i* out_mm = reinterpret_cast<__m128i*>(out);
406 
407  const __m128i* key_mm = reinterpret_cast<const __m128i*>(m_DK.data());
408 
409  __m128i K0 = _mm_loadu_si128(key_mm);
410  __m128i K1 = _mm_loadu_si128(key_mm + 1);
411  __m128i K2 = _mm_loadu_si128(key_mm + 2);
412  __m128i K3 = _mm_loadu_si128(key_mm + 3);
413  __m128i K4 = _mm_loadu_si128(key_mm + 4);
414  __m128i K5 = _mm_loadu_si128(key_mm + 5);
415  __m128i K6 = _mm_loadu_si128(key_mm + 6);
416  __m128i K7 = _mm_loadu_si128(key_mm + 7);
417  __m128i K8 = _mm_loadu_si128(key_mm + 8);
418  __m128i K9 = _mm_loadu_si128(key_mm + 9);
419  __m128i K10 = _mm_loadu_si128(key_mm + 10);
420  __m128i K11 = _mm_loadu_si128(key_mm + 11);
421  __m128i K12 = _mm_loadu_si128(key_mm + 12);
422 
423  while(blocks >= 4)
424  {
425  __m128i B0 = _mm_loadu_si128(in_mm + 0);
426  __m128i B1 = _mm_loadu_si128(in_mm + 1);
427  __m128i B2 = _mm_loadu_si128(in_mm + 2);
428  __m128i B3 = _mm_loadu_si128(in_mm + 3);
429 
430  B0 = _mm_xor_si128(B0, K0);
431  B1 = _mm_xor_si128(B1, K0);
432  B2 = _mm_xor_si128(B2, K0);
433  B3 = _mm_xor_si128(B3, K0);
434 
435  AES_DEC_4_ROUNDS(K1);
436  AES_DEC_4_ROUNDS(K2);
437  AES_DEC_4_ROUNDS(K3);
438  AES_DEC_4_ROUNDS(K4);
439  AES_DEC_4_ROUNDS(K5);
440  AES_DEC_4_ROUNDS(K6);
441  AES_DEC_4_ROUNDS(K7);
442  AES_DEC_4_ROUNDS(K8);
443  AES_DEC_4_ROUNDS(K9);
444  AES_DEC_4_ROUNDS(K10);
445  AES_DEC_4_ROUNDS(K11);
447 
448  _mm_storeu_si128(out_mm + 0, B0);
449  _mm_storeu_si128(out_mm + 1, B1);
450  _mm_storeu_si128(out_mm + 2, B2);
451  _mm_storeu_si128(out_mm + 3, B3);
452 
453  blocks -= 4;
454  in_mm += 4;
455  out_mm += 4;
456  }
457 
458  for(size_t i = 0; i != blocks; ++i)
459  {
460  __m128i B = _mm_loadu_si128(in_mm + i);
461 
462  B = _mm_xor_si128(B, K0);
463 
464  B = _mm_aesdec_si128(B, K1);
465  B = _mm_aesdec_si128(B, K2);
466  B = _mm_aesdec_si128(B, K3);
467  B = _mm_aesdec_si128(B, K4);
468  B = _mm_aesdec_si128(B, K5);
469  B = _mm_aesdec_si128(B, K6);
470  B = _mm_aesdec_si128(B, K7);
471  B = _mm_aesdec_si128(B, K8);
472  B = _mm_aesdec_si128(B, K9);
473  B = _mm_aesdec_si128(B, K10);
474  B = _mm_aesdec_si128(B, K11);
475  B = _mm_aesdeclast_si128(B, K12);
476 
477  _mm_storeu_si128(out_mm + i, B);
478  }
479  }
#define AES_DEC_4_LAST_ROUNDS(K)
Definition: aes_ni.cpp:95
#define AES_DEC_4_ROUNDS(K)
Definition: aes_ni.cpp:86
void Botan::BlockCipher::encrypt ( const byte  in[],
byte  out[] 
) const
inlineinherited

Encrypt a block.

Parameters
inThe plaintext block to be encrypted as a byte array. Must be of length block_size().
outThe byte array designated to hold the encrypted block. Must be of length block_size().

Definition at line 62 of file block_cipher.h.

Referenced by Botan::aont_package(), Botan::aont_unpackage(), Botan::GOST_34_11::clear(), Botan::DESX::encrypt_n(), Botan::XTS_Encryption::finish(), Botan::CTS_Encryption::finish(), Botan::CFB_Encryption::update(), Botan::CBC_Encryption::update(), Botan::CFB_Decryption::update(), and Botan::CFB_Mode::valid_nonce_length().

63  { encrypt_n(in, out, 1); }
virtual void encrypt_n(const byte in[], byte out[], size_t blocks) const =0
void Botan::BlockCipher::encrypt ( byte  block[]) const
inlineinherited

Encrypt a block.

Parameters
blockthe plaintext block to be encrypted Must be of length block_size(). Will hold the result when the function has finished.

Definition at line 81 of file block_cipher.h.

81 { encrypt_n(block, block, 1); }
virtual void encrypt_n(const byte in[], byte out[], size_t blocks) const =0
template<typename Alloc >
void Botan::BlockCipher::encrypt ( std::vector< byte, Alloc > &  block) const
inlineinherited

Encrypt one or more blocks

Parameters
blockthe input/output buffer (multiple of block_size())

Definition at line 96 of file block_cipher.h.

97  {
98  return encrypt_n(block.data(), block.data(), block.size() / block_size());
99  }
virtual void encrypt_n(const byte in[], byte out[], size_t blocks) const =0
virtual size_t block_size() const =0
template<typename Alloc , typename Alloc2 >
void Botan::BlockCipher::encrypt ( const std::vector< byte, Alloc > &  in,
std::vector< byte, Alloc2 > &  out 
) const
inlineinherited

Encrypt one or more blocks

Parameters
inthe input buffer (multiple of block_size())
outthe output buffer (same size as in)

Definition at line 117 of file block_cipher.h.

119  {
120  return encrypt_n(in.data(), out.data(), in.size() / block_size());
121  }
virtual void encrypt_n(const byte in[], byte out[], size_t blocks) const =0
virtual size_t block_size() const =0
void Botan::AES_192_NI::encrypt_n ( const byte  in[],
byte  out[],
size_t  blocks 
) const
overridevirtual

Encrypt one or more blocks

Parameters
inthe input buffer (multiple of block_size())
outthe output buffer (same size as in)
blocksthe number of blocks to process

Implements Botan::BlockCipher.

Definition at line 320 of file aes_ni.cpp.

References AES_ENC_4_LAST_ROUNDS, and AES_ENC_4_ROUNDS.

321  {
322  const __m128i* in_mm = reinterpret_cast<const __m128i*>(in);
323  __m128i* out_mm = reinterpret_cast<__m128i*>(out);
324 
325  const __m128i* key_mm = reinterpret_cast<const __m128i*>(m_EK.data());
326 
327  __m128i K0 = _mm_loadu_si128(key_mm);
328  __m128i K1 = _mm_loadu_si128(key_mm + 1);
329  __m128i K2 = _mm_loadu_si128(key_mm + 2);
330  __m128i K3 = _mm_loadu_si128(key_mm + 3);
331  __m128i K4 = _mm_loadu_si128(key_mm + 4);
332  __m128i K5 = _mm_loadu_si128(key_mm + 5);
333  __m128i K6 = _mm_loadu_si128(key_mm + 6);
334  __m128i K7 = _mm_loadu_si128(key_mm + 7);
335  __m128i K8 = _mm_loadu_si128(key_mm + 8);
336  __m128i K9 = _mm_loadu_si128(key_mm + 9);
337  __m128i K10 = _mm_loadu_si128(key_mm + 10);
338  __m128i K11 = _mm_loadu_si128(key_mm + 11);
339  __m128i K12 = _mm_loadu_si128(key_mm + 12);
340 
341  while(blocks >= 4)
342  {
343  __m128i B0 = _mm_loadu_si128(in_mm + 0);
344  __m128i B1 = _mm_loadu_si128(in_mm + 1);
345  __m128i B2 = _mm_loadu_si128(in_mm + 2);
346  __m128i B3 = _mm_loadu_si128(in_mm + 3);
347 
348  B0 = _mm_xor_si128(B0, K0);
349  B1 = _mm_xor_si128(B1, K0);
350  B2 = _mm_xor_si128(B2, K0);
351  B3 = _mm_xor_si128(B3, K0);
352 
353  AES_ENC_4_ROUNDS(K1);
354  AES_ENC_4_ROUNDS(K2);
355  AES_ENC_4_ROUNDS(K3);
356  AES_ENC_4_ROUNDS(K4);
357  AES_ENC_4_ROUNDS(K5);
358  AES_ENC_4_ROUNDS(K6);
359  AES_ENC_4_ROUNDS(K7);
360  AES_ENC_4_ROUNDS(K8);
361  AES_ENC_4_ROUNDS(K9);
362  AES_ENC_4_ROUNDS(K10);
363  AES_ENC_4_ROUNDS(K11);
365 
366  _mm_storeu_si128(out_mm + 0, B0);
367  _mm_storeu_si128(out_mm + 1, B1);
368  _mm_storeu_si128(out_mm + 2, B2);
369  _mm_storeu_si128(out_mm + 3, B3);
370 
371  blocks -= 4;
372  in_mm += 4;
373  out_mm += 4;
374  }
375 
376  for(size_t i = 0; i != blocks; ++i)
377  {
378  __m128i B = _mm_loadu_si128(in_mm + i);
379 
380  B = _mm_xor_si128(B, K0);
381 
382  B = _mm_aesenc_si128(B, K1);
383  B = _mm_aesenc_si128(B, K2);
384  B = _mm_aesenc_si128(B, K3);
385  B = _mm_aesenc_si128(B, K4);
386  B = _mm_aesenc_si128(B, K5);
387  B = _mm_aesenc_si128(B, K6);
388  B = _mm_aesenc_si128(B, K7);
389  B = _mm_aesenc_si128(B, K8);
390  B = _mm_aesenc_si128(B, K9);
391  B = _mm_aesenc_si128(B, K10);
392  B = _mm_aesenc_si128(B, K11);
393  B = _mm_aesenclast_si128(B, K12);
394 
395  _mm_storeu_si128(out_mm + i, B);
396  }
397  }
#define AES_ENC_4_ROUNDS(K)
Definition: aes_ni.cpp:68
#define AES_ENC_4_LAST_ROUNDS(K)
Definition: aes_ni.cpp:77
Key_Length_Specification Botan::Block_Cipher_Fixed_Params< BS, KMIN, 0 , 1 >::key_spec ( ) const
inlineoverridevirtualinherited
Returns
object describing limits on key size

Implements Botan::SymmetricAlgorithm.

Definition at line 171 of file block_cipher.h.

172  {
173  return Key_Length_Specification(KMIN, KMAX, KMOD);
174  }
size_t Botan::SymmetricAlgorithm::maximum_keylength ( ) const
inlineinherited
Returns
minimum allowed key length

Definition at line 36 of file sym_algo.h.

37  {
38  return key_spec().maximum_keylength();
39  }
size_t maximum_keylength() const
Definition: key_spec.h:69
virtual Key_Length_Specification key_spec() const =0
size_t Botan::SymmetricAlgorithm::minimum_keylength ( ) const
inlineinherited
Returns
maxmium allowed key length

Definition at line 44 of file sym_algo.h.

45  {
46  return key_spec().minimum_keylength();
47  }
size_t minimum_keylength() const
Definition: key_spec.h:61
virtual Key_Length_Specification key_spec() const =0
std::string Botan::AES_192_NI::name ( ) const
inlineoverridevirtual

Implements Botan::SymmetricAlgorithm.

Definition at line 47 of file aes_ni.h.

47 { return "AES-192"; }
size_t Botan::BlockCipher::parallel_bytes ( ) const
inlineinherited
Returns
prefererred parallelism of this cipher in bytes

Definition at line 50 of file block_cipher.h.

Referenced by Botan::XTS_Mode::update_granularity(), Botan::CBC_Mode::update_granularity(), and Botan::ECB_Mode::update_granularity().

51  {
52  return parallelism() * block_size() * BOTAN_BLOCK_CIPHER_PAR_MULT;
53  }
virtual size_t parallelism() const
Definition: block_cipher.h:45
virtual size_t block_size() const =0
size_t Botan::AES_192_NI::parallelism ( ) const
inlineoverridevirtual
Returns
native parallelism of this cipher in blocks

Reimplemented from Botan::BlockCipher.

Definition at line 41 of file aes_ni.h.

41 { return 4; }
std::vector< std::string > Botan::BlockCipher::providers ( const std::string &  algo_spec)
staticinherited

Returns the list of available providers for this algorithm, empty if not available

Definition at line 156 of file block_cipher.cpp.

Referenced by Botan::TLS::Ciphersuite::ecc_ciphersuite(), and Botan::get_block_cipher_providers().

157  {
158  return providers_of<BlockCipher>(BlockCipher::Spec(algo_spec));
159  }
void Botan::SymmetricAlgorithm::set_key ( const SymmetricKey key)
inlineinherited

Set the symmetric key of this object.

Parameters
keythe SymmetricKey to be set.

Definition at line 63 of file sym_algo.h.

References Botan::OctetString::begin(), and Botan::OctetString::length().

Referenced by Botan::aont_package(), Botan::aont_unpackage(), botan_mac_set_key(), Botan::GOST_34_11::clear(), Botan::DESX::decrypt_n(), Botan::pbkdf2(), and Botan::TLS_PRF::TLS_PRF().

64  {
65  set_key(key.begin(), key.length());
66  }
void set_key(const SymmetricKey &key)
Definition: sym_algo.h:63
template<typename Alloc >
void Botan::SymmetricAlgorithm::set_key ( const std::vector< byte, Alloc > &  key)
inlineinherited

Definition at line 69 of file sym_algo.h.

70  {
71  set_key(key.data(), key.size());
72  }
void set_key(const SymmetricKey &key)
Definition: sym_algo.h:63
void Botan::SymmetricAlgorithm::set_key ( const byte  key[],
size_t  length 
)
inlineinherited

Set the symmetric key of this object.

Parameters
keythe to be set as a byte array.
lengthin bytes of key param

Definition at line 79 of file sym_algo.h.

80  {
81  if(!valid_keylength(length))
82  throw Invalid_Key_Length(name(), length);
83  key_schedule(key, length);
84  }
bool valid_keylength(size_t length) const
Definition: sym_algo.h:54
virtual std::string name() const =0
bool Botan::SymmetricAlgorithm::valid_keylength ( size_t  length) const
inlineinherited

Check whether a given key length is valid for this algorithm.

Parameters
lengththe key length to be checked.
Returns
true if the key length is valid.

Definition at line 54 of file sym_algo.h.

Referenced by Botan::aont_package(), and Botan::aont_unpackage().

55  {
56  return key_spec().valid_keylength(length);
57  }
bool valid_keylength(size_t length) const
Definition: key_spec.h:51
virtual Key_Length_Specification key_spec() const =0

The documentation for this class was generated from the following files: