Botan  2.4.0
Crypto and TLS for C++11
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
Botan::Block_Cipher_Fixed_Params< BS, KMIN, KMAX, KMOD > Class Template Referenceabstract

#include <block_cipher.h>

Inheritance diagram for Botan::Block_Cipher_Fixed_Params< BS, KMIN, KMAX, KMOD >:
Botan::BlockCipher Botan::SymmetricAlgorithm

Public Types

enum  { BLOCK_SIZE = BS }
 

Public Member Functions

size_t block_size () const override
 
virtual void clear ()=0
 
virtual BlockCipherclone () const =0
 
void decrypt (const uint8_t in[], uint8_t out[]) const
 
void decrypt (uint8_t block[]) const
 
template<typename Alloc >
void decrypt (std::vector< uint8_t, Alloc > &block) const
 
template<typename Alloc , typename Alloc2 >
void decrypt (const std::vector< uint8_t, Alloc > &in, std::vector< uint8_t, Alloc2 > &out) const
 
virtual void decrypt_n (const uint8_t in[], uint8_t out[], size_t blocks) const =0
 
void decrypt_n_xex (uint8_t data[], const uint8_t mask[], size_t blocks) const override
 
void encrypt (const uint8_t in[], uint8_t out[]) const
 
void encrypt (uint8_t block[]) const
 
template<typename Alloc >
void encrypt (std::vector< uint8_t, Alloc > &block) const
 
template<typename Alloc , typename Alloc2 >
void encrypt (const std::vector< uint8_t, Alloc > &in, std::vector< uint8_t, Alloc2 > &out) const
 
virtual void encrypt_n (const uint8_t in[], uint8_t out[], size_t blocks) const =0
 
void encrypt_n_xex (uint8_t data[], const uint8_t mask[], size_t blocks) const override
 
Key_Length_Specification key_spec () const override
 
size_t maximum_keylength () const
 
size_t minimum_keylength () const
 
virtual std::string name () const =0
 
size_t parallel_bytes () const
 
virtual size_t parallelism () const
 
virtual std::string provider () const
 
void set_key (const SymmetricKey &key)
 
template<typename Alloc >
void set_key (const std::vector< uint8_t, Alloc > &key)
 
void set_key (const uint8_t 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::unique_ptr< BlockCiphercreate_or_throw (const std::string &algo_spec, const std::string &provider="")
 
static std::vector< std::string > providers (const std::string &algo_spec)
 

Protected Member Functions

void verify_key_set (bool cond) const
 

Detailed Description

template<size_t BS, size_t KMIN, size_t KMAX = 0, size_t KMOD = 1>
class Botan::Block_Cipher_Fixed_Params< BS, KMIN, KMAX, KMOD >

Represents a block cipher with a single fixed block size

Definition at line 204 of file block_cipher.h.

Member Enumeration Documentation

◆ anonymous enum

template<size_t BS, size_t KMIN, size_t KMAX = 0, size_t KMOD = 1>
anonymous enum
Enumerator
BLOCK_SIZE 

Definition at line 207 of file block_cipher.h.

Member Function Documentation

◆ block_size()

template<size_t BS, size_t KMIN, size_t KMAX = 0, size_t KMOD = 1>
size_t Botan::Block_Cipher_Fixed_Params< BS, KMIN, KMAX, KMOD >::block_size ( ) const
inlineoverridevirtual
Returns
block size of this algorithm

Implements Botan::BlockCipher.

Definition at line 208 of file block_cipher.h.

208 { return BS; }

◆ clear()

virtual void Botan::SymmetricAlgorithm::clear ( )
pure virtualinherited

◆ clone()

virtual BlockCipher* Botan::BlockCipher::clone ( ) const
pure virtualinherited

◆ create()

std::unique_ptr< BlockCipher > Botan::BlockCipher::create ( const std::string &  algo_spec,
const std::string &  provider = "" 
)
staticinherited

Create an instance based on a name If provider is empty then best available is chosen.

Parameters
algo_specalgorithm name
providerprovider implementation to choose
Returns
a null pointer if the algo/provider combination cannot be found

Definition at line 103 of file block_cipher.cpp.

References Botan::BlockCipher::block_size(), BOTAN_UNUSED, Botan::HashFunction::create(), Botan::StreamCipher::create(), hash, and Botan::make_openssl_block_cipher().

Referenced by botan_block_cipher_init(), Botan::MessageAuthenticationCode::create(), Botan::StreamCipher::create(), Botan::BlockCipher::create_or_throw(), Botan::get_aead(), Botan::get_block_cipher(), and Botan::get_cipher_mode().

105  {
106 #if defined(BOTAN_HAS_OPENSSL)
107  if(provider.empty() || provider == "openssl")
108  {
109  if(auto bc = make_openssl_block_cipher(algo))
110  return bc;
111 
112  if(!provider.empty())
113  return nullptr;
114  }
115 #endif
116 
117  // TODO: CommonCrypto
118  // TODO: CryptoAPI
119  // TODO: /dev/crypto
120 
121  // Only base providers from here on out
122  if(provider.empty() == false && provider != "base")
123  return nullptr;
124 
125 #if defined(BOTAN_HAS_AES)
126  if(algo == "AES-128")
127  {
128  return std::unique_ptr<BlockCipher>(new AES_128);
129  }
130 
131  if(algo == "AES-192")
132  {
133  return std::unique_ptr<BlockCipher>(new AES_192);
134  }
135 
136  if(algo == "AES-256")
137  {
138  return std::unique_ptr<BlockCipher>(new AES_256);
139  }
140 #endif
141 
142 #if defined(BOTAN_HAS_ARIA)
143  if(algo == "ARIA-128")
144  {
145  return std::unique_ptr<BlockCipher>(new ARIA_128);
146  }
147 
148  if(algo == "ARIA-192")
149  {
150  return std::unique_ptr<BlockCipher>(new ARIA_192);
151  }
152 
153  if(algo == "ARIA-256")
154  {
155  return std::unique_ptr<BlockCipher>(new ARIA_256);
156  }
157 #endif
158 
159 #if defined(BOTAN_HAS_SERPENT)
160  if(algo == "Serpent")
161  {
162  return std::unique_ptr<BlockCipher>(new Serpent);
163  }
164 #endif
165 
166 #if defined(BOTAN_HAS_SHACAL2)
167  if(algo == "SHACAL2")
168  {
169  return std::unique_ptr<BlockCipher>(new SHACAL2);
170  }
171 #endif
172 
173 #if defined(BOTAN_HAS_TWOFISH)
174  if(algo == "Twofish")
175  {
176  return std::unique_ptr<BlockCipher>(new Twofish);
177  }
178 #endif
179 
180 #if defined(BOTAN_HAS_THREEFISH_512)
181  if(algo == "Threefish-512")
182  {
183  return std::unique_ptr<BlockCipher>(new Threefish_512);
184  }
185 #endif
186 
187 #if defined(BOTAN_HAS_BLOWFISH)
188  if(algo == "Blowfish")
189  {
190  return std::unique_ptr<BlockCipher>(new Blowfish);
191  }
192 #endif
193 
194 #if defined(BOTAN_HAS_CAMELLIA)
195  if(algo == "Camellia-128")
196  {
197  return std::unique_ptr<BlockCipher>(new Camellia_128);
198  }
199 
200  if(algo == "Camellia-192")
201  {
202  return std::unique_ptr<BlockCipher>(new Camellia_192);
203  }
204 
205  if(algo == "Camellia-256")
206  {
207  return std::unique_ptr<BlockCipher>(new Camellia_256);
208  }
209 #endif
210 
211 #if defined(BOTAN_HAS_DES)
212  if(algo == "DES")
213  {
214  return std::unique_ptr<BlockCipher>(new DES);
215  }
216 
217  if(algo == "DESX")
218  {
219  return std::unique_ptr<BlockCipher>(new DESX);
220  }
221 
222  if(algo == "TripleDES" || algo == "3DES" || algo == "DES-EDE")
223  {
224  return std::unique_ptr<BlockCipher>(new TripleDES);
225  }
226 #endif
227 
228 #if defined(BOTAN_HAS_NOEKEON)
229  if(algo == "Noekeon")
230  {
231  return std::unique_ptr<BlockCipher>(new Noekeon);
232  }
233 #endif
234 
235 #if defined(BOTAN_HAS_CAST_128)
236  if(algo == "CAST-128" || algo == "CAST5")
237  {
238  return std::unique_ptr<BlockCipher>(new CAST_128);
239  }
240 #endif
241 
242 #if defined(BOTAN_HAS_CAST_256)
243  if(algo == "CAST-256")
244  {
245  return std::unique_ptr<BlockCipher>(new CAST_256);
246  }
247 #endif
248 
249 #if defined(BOTAN_HAS_IDEA)
250  if(algo == "IDEA")
251  {
252  return std::unique_ptr<BlockCipher>(new IDEA);
253  }
254 #endif
255 
256 #if defined(BOTAN_HAS_KASUMI)
257  if(algo == "KASUMI")
258  {
259  return std::unique_ptr<BlockCipher>(new KASUMI);
260  }
261 #endif
262 
263 #if defined(BOTAN_HAS_MISTY1)
264  if(algo == "MISTY1")
265  {
266  return std::unique_ptr<BlockCipher>(new MISTY1);
267  }
268 #endif
269 
270 #if defined(BOTAN_HAS_SEED)
271  if(algo == "SEED")
272  {
273  return std::unique_ptr<BlockCipher>(new SEED);
274  }
275 #endif
276 
277 #if defined(BOTAN_HAS_SM4)
278  if(algo == "SM4")
279  {
280  return std::unique_ptr<BlockCipher>(new SM4);
281  }
282 #endif
283 
284 #if defined(BOTAN_HAS_XTEA)
285  if(algo == "XTEA")
286  {
287  return std::unique_ptr<BlockCipher>(new XTEA);
288  }
289 #endif
290 
291  const SCAN_Name req(algo);
292 
293 #if defined(BOTAN_HAS_GOST_28147_89)
294  if(req.algo_name() == "GOST-28147-89")
295  {
296  return std::unique_ptr<BlockCipher>(new GOST_28147_89(req.arg(0, "R3411_94_TestParam")));
297  }
298 #endif
299 
300 #if defined(BOTAN_HAS_CASCADE)
301  if(req.algo_name() == "Cascade" && req.arg_count() == 2)
302  {
303  std::unique_ptr<BlockCipher> c1(BlockCipher::create(req.arg(0)));
304  std::unique_ptr<BlockCipher> c2(BlockCipher::create(req.arg(1)));
305 
306  if(c1 && c2)
307  return std::unique_ptr<BlockCipher>(new Cascade_Cipher(c1.release(), c2.release()));
308  }
309 #endif
310 
311 #if defined(BOTAN_HAS_LION)
312  if(req.algo_name() == "Lion" && req.arg_count_between(2, 3))
313  {
314  std::unique_ptr<HashFunction> hash(HashFunction::create(req.arg(0)));
315  std::unique_ptr<StreamCipher> stream(StreamCipher::create(req.arg(1)));
316 
317  if(hash && stream)
318  {
319  const size_t block_size = req.arg_as_integer(2, 1024);
320  return std::unique_ptr<BlockCipher>(new Lion(hash.release(), stream.release(), block_size));
321  }
322  }
323 #endif
324 
325  BOTAN_UNUSED(req);
327 
328  return nullptr;
329  }
static std::unique_ptr< HashFunction > create(const std::string &algo_spec, const std::string &provider="")
Definition: hash.cpp:106
#define BOTAN_UNUSED(...)
Definition: assert.h:106
static std::unique_ptr< BlockCipher > create(const std::string &algo_spec, const std::string &provider="")
static std::unique_ptr< StreamCipher > create(const std::string &algo_spec, const std::string &provider="")
std::unique_ptr< BlockCipher > make_openssl_block_cipher(const std::string &name)
virtual std::string provider() const
Definition: block_cipher.h:72
virtual size_t block_size() const =0
MechanismType hash

◆ create_or_throw()

std::unique_ptr< BlockCipher > Botan::BlockCipher::create_or_throw ( const std::string &  algo_spec,
const std::string &  provider = "" 
)
staticinherited

Create an instance based on a name, or throw if the algo/provider combination cannot be found. If provider is empty then best available is chosen.

Definition at line 333 of file block_cipher.cpp.

References Botan::BlockCipher::create().

Referenced by Botan::Encrypted_PSK_Database::Encrypted_PSK_Database(), Botan::make_block_cipher(), Botan::rfc3394_keyunwrap(), Botan::rfc3394_keywrap(), and Botan::TLS::TLS_CBC_HMAC_AEAD_Mode::TLS_CBC_HMAC_AEAD_Mode().

335  {
336  if(auto bc = BlockCipher::create(algo, provider))
337  {
338  return bc;
339  }
340  throw Lookup_Error("Block cipher", algo, provider);
341  }
static std::unique_ptr< BlockCipher > create(const std::string &algo_spec, const std::string &provider="")
virtual std::string provider() const
Definition: block_cipher.h:72

◆ decrypt() [1/4]

void Botan::BlockCipher::decrypt ( const uint8_t  in[],
uint8_t  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 91 of file block_cipher.h.

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

92  { decrypt_n(in, out, 1); }
virtual void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0

◆ decrypt() [2/4]

void Botan::BlockCipher::decrypt ( uint8_t  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 108 of file block_cipher.h.

108 { decrypt_n(block, block, 1); }
virtual void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0

◆ decrypt() [3/4]

template<typename Alloc >
void Botan::BlockCipher::decrypt ( std::vector< uint8_t, Alloc > &  block) const
inlineinherited

Decrypt one or more blocks

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

Definition at line 125 of file block_cipher.h.

126  {
127  return decrypt_n(block.data(), block.data(), block.size() / block_size());
128  }
virtual void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0
virtual size_t block_size() const =0

◆ decrypt() [4/4]

template<typename Alloc , typename Alloc2 >
void Botan::BlockCipher::decrypt ( const std::vector< uint8_t, Alloc > &  in,
std::vector< uint8_t, 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 148 of file block_cipher.h.

150  {
151  return decrypt_n(in.data(), out.data(), in.size() / block_size());
152  }
virtual void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0
virtual size_t block_size() const =0

◆ decrypt_n()

virtual void Botan::BlockCipher::decrypt_n ( const uint8_t  in[],
uint8_t  out[],
size_t  blocks 
) const
pure virtualinherited

◆ decrypt_n_xex()

template<size_t BS, size_t KMIN, size_t KMAX = 0, size_t KMOD = 1>
void Botan::Block_Cipher_Fixed_Params< BS, KMIN, KMAX, KMOD >::decrypt_n_xex ( uint8_t  data[],
const uint8_t  mask[],
size_t  blocks 
) const
inlineoverridevirtual

Reimplemented from Botan::BlockCipher.

Definition at line 220 of file block_cipher.h.

223  {
224  xor_buf(data, mask, blocks * BS);
225  decrypt_n(data, data, blocks);
226  xor_buf(data, mask, blocks * BS);
227  }
virtual void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0
void xor_buf(uint8_t out[], const uint8_t in[], size_t length)
Definition: mem_ops.h:163

◆ encrypt() [1/4]

void Botan::BlockCipher::encrypt ( const uint8_t  in[],
uint8_t  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 81 of file block_cipher.h.

Referenced by Botan::aont_package(), Botan::aont_unpackage(), Botan::GOST_34_11::copy_state(), Botan::DESX::encrypt_n(), Botan::XTS_Encryption::finish(), Botan::CTS_Encryption::finish(), Botan::nist_key_wrap_padded(), Botan::CBC_Encryption::process(), Botan::CFB_Mode::shift_register(), and Botan::CFB_Mode::valid_nonce_length().

82  { encrypt_n(in, out, 1); }
virtual void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0

◆ encrypt() [2/4]

void Botan::BlockCipher::encrypt ( uint8_t  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 100 of file block_cipher.h.

100 { encrypt_n(block, block, 1); }
virtual void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0

◆ encrypt() [3/4]

template<typename Alloc >
void Botan::BlockCipher::encrypt ( std::vector< uint8_t, Alloc > &  block) const
inlineinherited

Encrypt one or more blocks

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

Definition at line 115 of file block_cipher.h.

116  {
117  return encrypt_n(block.data(), block.data(), block.size() / block_size());
118  }
virtual void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0
virtual size_t block_size() const =0

◆ encrypt() [4/4]

template<typename Alloc , typename Alloc2 >
void Botan::BlockCipher::encrypt ( const std::vector< uint8_t, Alloc > &  in,
std::vector< uint8_t, 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 136 of file block_cipher.h.

138  {
139  return encrypt_n(in.data(), out.data(), in.size() / block_size());
140  }
virtual void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0
virtual size_t block_size() const =0

◆ encrypt_n()

virtual void Botan::BlockCipher::encrypt_n ( const uint8_t  in[],
uint8_t  out[],
size_t  blocks 
) const
pure virtualinherited

◆ encrypt_n_xex()

template<size_t BS, size_t KMIN, size_t KMAX = 0, size_t KMOD = 1>
void Botan::Block_Cipher_Fixed_Params< BS, KMIN, KMAX, KMOD >::encrypt_n_xex ( uint8_t  data[],
const uint8_t  mask[],
size_t  blocks 
) const
inlineoverridevirtual

Reimplemented from Botan::BlockCipher.

Definition at line 211 of file block_cipher.h.

214  {
215  xor_buf(data, mask, blocks * BS);
216  encrypt_n(data, data, blocks);
217  xor_buf(data, mask, blocks * BS);
218  }
void xor_buf(uint8_t out[], const uint8_t in[], size_t length)
Definition: mem_ops.h:163
virtual void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0

◆ key_spec()

template<size_t BS, size_t KMIN, size_t KMAX = 0, size_t KMOD = 1>
Key_Length_Specification Botan::Block_Cipher_Fixed_Params< BS, KMIN, KMAX, KMOD >::key_spec ( ) const
inlineoverridevirtual
Returns
object describing limits on key size

Implements Botan::SymmetricAlgorithm.

Definition at line 229 of file block_cipher.h.

230  {
231  return Key_Length_Specification(KMIN, KMAX, KMOD);
232  }

◆ maximum_keylength()

size_t Botan::SymmetricAlgorithm::maximum_keylength ( ) const
inlineinherited
Returns
minimum allowed key length

Definition at line 39 of file sym_algo.h.

40  {
41  return key_spec().maximum_keylength();
42  }
size_t maximum_keylength() const
Definition: key_spec.h:69
virtual Key_Length_Specification key_spec() const =0

◆ minimum_keylength()

size_t Botan::SymmetricAlgorithm::minimum_keylength ( ) const
inlineinherited
Returns
maximum allowed key length

Definition at line 47 of file sym_algo.h.

48  {
49  return key_spec().minimum_keylength();
50  }
virtual Key_Length_Specification key_spec() const =0
size_t minimum_keylength() const
Definition: key_spec.h:61

◆ name()

virtual std::string Botan::SymmetricAlgorithm::name ( ) const
pure virtualinherited

◆ parallel_bytes()

size_t Botan::BlockCipher::parallel_bytes ( ) const
inlineinherited
Returns
prefererred parallelism of this cipher in bytes

Definition at line 63 of file block_cipher.h.

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

64  {
65  return parallelism() * block_size() * BOTAN_BLOCK_CIPHER_PAR_MULT;
66  }
virtual size_t parallelism() const
Definition: block_cipher.h:58
virtual size_t block_size() const =0

◆ parallelism()

virtual size_t Botan::BlockCipher::parallelism ( ) const
inlinevirtualinherited
Returns
native parallelism of this cipher in blocks

Reimplemented in Botan::AES_256, Botan::AES_192, Botan::Serpent, Botan::Threefish_512, Botan::AES_128, Botan::IDEA, Botan::Noekeon, and Botan::SHACAL2.

Definition at line 58 of file block_cipher.h.

58 { return 1; }

◆ provider()

virtual std::string Botan::BlockCipher::provider ( ) const
inlinevirtualinherited
Returns
provider information about this implementation. Default is "base", might also return "sse2", "avx2", "openssl", or some other arbitrary string.

Reimplemented in Botan::AES_256, Botan::AES_192, Botan::Threefish_512, Botan::AES_128, Botan::IDEA, Botan::Serpent, Botan::Noekeon, and Botan::SHACAL2.

Definition at line 72 of file block_cipher.h.

72 { return "base"; }

◆ providers()

std::vector< std::string > Botan::BlockCipher::providers ( const std::string &  algo_spec)
staticinherited
Returns
list of available providers for this algorithm, empty if not available
Parameters
algo_specalgorithm name

Definition at line 343 of file block_cipher.cpp.

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

344  {
345  return probe_providers_of<BlockCipher>(algo, { "base", "openssl" });
346  }

◆ set_key() [1/3]

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 66 of file sym_algo.h.

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

Referenced by Botan::aont_package(), Botan::aont_unpackage(), botan_block_cipher_set_key(), botan_mac_set_key(), Botan::GOST_34_11::copy_state(), Botan::DESX::decrypt_n(), Botan::TLS::TLS_CBC_HMAC_AEAD_Mode::key_spec(), Botan::pbkdf2(), and Botan::TLS_PRF::TLS_PRF().

67  {
68  set_key(key.begin(), key.length());
69  }
void set_key(const SymmetricKey &key)
Definition: sym_algo.h:66

◆ set_key() [2/3]

template<typename Alloc >
void Botan::SymmetricAlgorithm::set_key ( const std::vector< uint8_t, Alloc > &  key)
inlineinherited

Definition at line 72 of file sym_algo.h.

73  {
74  set_key(key.data(), key.size());
75  }
void set_key(const SymmetricKey &key)
Definition: sym_algo.h:66

◆ set_key() [3/3]

void Botan::SymmetricAlgorithm::set_key ( const uint8_t  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 82 of file sym_algo.h.

83  {
84  if(!valid_keylength(length))
85  throw Invalid_Key_Length(name(), length);
86  key_schedule(key, length);
87  }
bool valid_keylength(size_t length) const
Definition: sym_algo.h:57
virtual std::string name() const =0

◆ valid_keylength()

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 57 of file sym_algo.h.

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

58  {
59  return key_spec().valid_keylength(length);
60  }
bool valid_keylength(size_t length) const
Definition: key_spec.h:51
virtual Key_Length_Specification key_spec() const =0

◆ verify_key_set()

void Botan::SymmetricAlgorithm::verify_key_set ( bool  cond) const
inlineprotectedinherited

Definition at line 95 of file sym_algo.h.

Referenced by Botan::Salsa20::cipher(), Botan::CTR_BE::cipher(), Botan::RC4::cipher(), Botan::SHAKE_128_Cipher::cipher(), Botan::ChaCha::cipher(), Botan::Poly1305::clear(), Botan::SM4::decrypt_n(), Botan::CAST_256::decrypt_n(), Botan::DES::decrypt_n(), Botan::MISTY1::decrypt_n(), Botan::Noekeon::decrypt_n(), Botan::KASUMI::decrypt_n(), Botan::IDEA::decrypt_n(), Botan::SEED::decrypt_n(), Botan::SHACAL2::decrypt_n(), Botan::Twofish::decrypt_n(), Botan::DESX::decrypt_n(), Botan::CAST_128::decrypt_n(), Botan::Threefish_512::decrypt_n(), Botan::XTEA::decrypt_n(), Botan::Blowfish::decrypt_n(), Botan::Serpent::decrypt_n(), Botan::Lion::decrypt_n(), Botan::TripleDES::decrypt_n(), Botan::GOST_28147_89::decrypt_n(), Botan::CAST_128::encrypt_n(), Botan::Noekeon::encrypt_n(), Botan::XTEA::encrypt_n(), Botan::MISTY1::encrypt_n(), Botan::Twofish::encrypt_n(), Botan::SHACAL2::encrypt_n(), Botan::SEED::encrypt_n(), Botan::SM4::encrypt_n(), Botan::DES::encrypt_n(), Botan::CAST_256::encrypt_n(), Botan::DESX::encrypt_n(), Botan::IDEA::encrypt_n(), Botan::Threefish_512::encrypt_n(), Botan::Blowfish::encrypt_n(), Botan::KASUMI::encrypt_n(), Botan::Serpent::encrypt_n(), Botan::Lion::encrypt_n(), Botan::TripleDES::encrypt_n(), Botan::GOST_28147_89::encrypt_n(), Botan::Salsa20::seek(), Botan::CTR_BE::seek(), Botan::ChaCha::seek(), and Botan::GHASH::update_associated_data().

96  {
97  if(cond == false)
98  throw Key_Not_Set(name());
99  }
virtual std::string name() const =0

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