iPXE
Data Structures | Macros | Functions
hmac_drbg.h File Reference

HMAC_DRBG algorithm. More...

#include <stdint.h>
#include <ipxe/crypto.h>

Go to the source code of this file.

Data Structures

struct  hmac_drbg_state
 HMAC_DRBG internal state. More...
 

Macros

#define HMAC_DRBG(hash, max_security_strength, out_len_bits)   ( hash, max_security_strength, out_len_bits )
 Declare an HMAC_DRBG algorithm. More...
 
#define HMAC_DRBG_SHA1   HMAC_DRBG ( &sha1_algorithm, 128, 160 )
 HMAC_DRBG using SHA-1. More...
 
#define HMAC_DRBG_SHA224   HMAC_DRBG ( &sha224_algorithm, 192, 224 )
 HMAC_DRBG using SHA-224. More...
 
#define HMAC_DRBG_SHA256   HMAC_DRBG ( &sha256_algorithm, 256, 256 )
 HMAC_DRBG using SHA-256. More...
 
#define HMAC_DRBG_SHA384   HMAC_DRBG ( &sha384_algorithm, 256, 384 )
 HMAC_DRBG using SHA-384. More...
 
#define HMAC_DRBG_SHA512   HMAC_DRBG ( &sha512_algorithm, 256, 512 )
 HMAC_DRBG using SHA-512. More...
 
#define HMAC_DRBG_HASH(hmac_drbg)   HMAC_DRBG_EXTRACT_HASH hmac_drbg
 Underlying hash algorithm. More...
 
#define HMAC_DRBG_EXTRACT_HASH(hash, max_security_strength, out_len_bits)   hash
 
#define HMAC_DRBG_MAX_SECURITY_STRENGTH(hmac_drbg)   HMAC_DRBG_EXTRACT_MAX_SECURITY_STRENGTH hmac_drbg
 Maximum security strength. More...
 
#define HMAC_DRBG_EXTRACT_MAX_SECURITY_STRENGTH(hash, max_security_strength, out_len_bits)   max_security_strength
 
#define HMAC_DRBG_OUTLEN_BITS(hmac_drbg)   HMAC_DRBG_EXTRACT_OUTLEN_BITS hmac_drbg
 Output block length, in bits. More...
 
#define HMAC_DRBG_EXTRACT_OUTLEN_BITS(hash, max_security_strength, out_len_bits)   out_len_bits
 
#define HMAC_DRBG_OUTLEN_BYTES(hmac_drbg)   ( HMAC_DRBG_OUTLEN_BITS ( hmac_drbg ) / 8 )
 Output block length, in bytes. More...
 
#define HMAC_DRBG_MAX_OUTLEN_BYTES   HMAC_DRBG_OUTLEN_BYTES ( HMAC_DRBG_SHA512 )
 Maximum output block length, in bytes. More...
 
#define HMAC_DRBG_MIN_ENTROPY(security_strength)   (security_strength)
 Required minimum entropy for instantiate and reseed. More...
 
#define HMAC_DRBG_MIN_ENTROPY_LEN_BYTES(security_strength)   ( (security_strength) / 8 )
 Minimum entropy input length. More...
 
#define HMAC_DRBG_MAX_ENTROPY_LEN_BYTES   32
 Maximum entropy input length. More...
 
#define HMAC_DRBG_MAX_PERSONAL_LEN_BYTES   0xffffffffUL
 Maximum personalisation string length. More...
 
#define HMAC_DRBG_MAX_ADDITIONAL_LEN_BYTES   0xffffffffUL
 Maximum additional input length. More...
 
#define HMAC_DRBG_MAX_GENERATED_LEN_BYTES   0x0000ffffUL
 Maximum length of generated pseudorandom data per request. More...
 
#define HMAC_DRBG_RESEED_INTERVAL   1024
 Reseed interval. More...
 

Functions

 FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
 
void hmac_drbg_instantiate (struct digest_algorithm *hash, struct hmac_drbg_state *state, const void *entropy, size_t entropy_len, const void *personal, size_t personal_len)
 Instantiate HMAC_DRBG. More...
 
void hmac_drbg_reseed (struct digest_algorithm *hash, struct hmac_drbg_state *state, const void *entropy, size_t entropy_len, const void *additional, size_t additional_len)
 Reseed HMAC_DRBG. More...
 
int hmac_drbg_generate (struct digest_algorithm *hash, struct hmac_drbg_state *state, const void *additional, size_t additional_len, void *data, size_t len)
 Generate pseudorandom bits using HMAC_DRBG. More...
 

Detailed Description

HMAC_DRBG algorithm.

Definition in file hmac_drbg.h.

Macro Definition Documentation

◆ HMAC_DRBG

#define HMAC_DRBG (   hash,
  max_security_strength,
  out_len_bits 
)    ( hash, max_security_strength, out_len_bits )

Declare an HMAC_DRBG algorithm.

Parameters
hashUnderlying hash algorithm
max_security_strengthMaxmimum security strength
out_len_bitsOutput block length, in bits
Return values
hmac_drbgHMAC_DRBG algorithm

Definition at line 22 of file hmac_drbg.h.

◆ HMAC_DRBG_SHA1

#define HMAC_DRBG_SHA1   HMAC_DRBG ( &sha1_algorithm, 128, 160 )

HMAC_DRBG using SHA-1.

The maximum security strength of HMAC_DRBG using SHA-1 is 128 bits according to the list of maximum security strengths documented in NIST SP 800-57 Part 1 Section 5.6.1 Table 3.

The output block length of HMAC_DRBG using SHA-1 is 160 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

Definition at line 35 of file hmac_drbg.h.

◆ HMAC_DRBG_SHA224

#define HMAC_DRBG_SHA224   HMAC_DRBG ( &sha224_algorithm, 192, 224 )

HMAC_DRBG using SHA-224.

The maximum security strength of HMAC_DRBG using SHA-224 is 192 bits according to the list of maximum security strengths documented in NIST SP 800-57 Part 1 Section 5.6.1 Table 3.

The output block length of HMAC_DRBG using SHA-224 is 224 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

Definition at line 47 of file hmac_drbg.h.

◆ HMAC_DRBG_SHA256

#define HMAC_DRBG_SHA256   HMAC_DRBG ( &sha256_algorithm, 256, 256 )

HMAC_DRBG using SHA-256.

The maximum security strength of HMAC_DRBG using SHA-256 is 256 bits according to the list of maximum security strengths documented in NIST SP 800-57 Part 1 Section 5.6.1 Table 3.

The output block length of HMAC_DRBG using SHA-256 is 256 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

Definition at line 59 of file hmac_drbg.h.

◆ HMAC_DRBG_SHA384

#define HMAC_DRBG_SHA384   HMAC_DRBG ( &sha384_algorithm, 256, 384 )

HMAC_DRBG using SHA-384.

The maximum security strength of HMAC_DRBG using SHA-384 is 256 bits according to the list of maximum security strengths documented in NIST SP 800-57 Part 1 Section 5.6.1 Table 3.

The output block length of HMAC_DRBG using SHA-384 is 384 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

Definition at line 71 of file hmac_drbg.h.

◆ HMAC_DRBG_SHA512

#define HMAC_DRBG_SHA512   HMAC_DRBG ( &sha512_algorithm, 256, 512 )

HMAC_DRBG using SHA-512.

The maximum security strength of HMAC_DRBG using SHA-512 is 256 bits according to the list of maximum security strengths documented in NIST SP 800-57 Part 1 Section 5.6.1 Table 3.

The output block length of HMAC_DRBG using SHA-512 is 512 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

Definition at line 83 of file hmac_drbg.h.

◆ HMAC_DRBG_HASH

#define HMAC_DRBG_HASH (   hmac_drbg)    HMAC_DRBG_EXTRACT_HASH hmac_drbg

Underlying hash algorithm.

Parameters
hmac_drbgHMAC_DRBG algorithm
Return values
hashUnderlying hash algorithm

Definition at line 90 of file hmac_drbg.h.

◆ HMAC_DRBG_EXTRACT_HASH

#define HMAC_DRBG_EXTRACT_HASH (   hash,
  max_security_strength,
  out_len_bits 
)    hash

Definition at line 92 of file hmac_drbg.h.

◆ HMAC_DRBG_MAX_SECURITY_STRENGTH

#define HMAC_DRBG_MAX_SECURITY_STRENGTH (   hmac_drbg)    HMAC_DRBG_EXTRACT_MAX_SECURITY_STRENGTH hmac_drbg

Maximum security strength.

Parameters
hmac_drbgHMAC_DRBG algorithm
Return values
max_security_strengthMaxmimum security strength

Definition at line 100 of file hmac_drbg.h.

◆ HMAC_DRBG_EXTRACT_MAX_SECURITY_STRENGTH

#define HMAC_DRBG_EXTRACT_MAX_SECURITY_STRENGTH (   hash,
  max_security_strength,
  out_len_bits 
)    max_security_strength

Definition at line 102 of file hmac_drbg.h.

◆ HMAC_DRBG_OUTLEN_BITS

#define HMAC_DRBG_OUTLEN_BITS (   hmac_drbg)    HMAC_DRBG_EXTRACT_OUTLEN_BITS hmac_drbg

Output block length, in bits.

Parameters
hmac_drbgHMAC_DRBG algorithm
Return values
out_len_bitsOutput block length, in bits

Definition at line 111 of file hmac_drbg.h.

◆ HMAC_DRBG_EXTRACT_OUTLEN_BITS

#define HMAC_DRBG_EXTRACT_OUTLEN_BITS (   hash,
  max_security_strength,
  out_len_bits 
)    out_len_bits

Definition at line 113 of file hmac_drbg.h.

◆ HMAC_DRBG_OUTLEN_BYTES

#define HMAC_DRBG_OUTLEN_BYTES (   hmac_drbg)    ( HMAC_DRBG_OUTLEN_BITS ( hmac_drbg ) / 8 )

Output block length, in bytes.

Parameters
hmac_drbgHMAC_DRBG algorithm
Return values
out_len_bytesOutput block length, in bytes

Definition at line 122 of file hmac_drbg.h.

◆ HMAC_DRBG_MAX_OUTLEN_BYTES

#define HMAC_DRBG_MAX_OUTLEN_BYTES   HMAC_DRBG_OUTLEN_BYTES ( HMAC_DRBG_SHA512 )

Maximum output block length, in bytes.

The maximum output block length for HMAC_DRBG is 512 bits for SHA-512 according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

Definition at line 131 of file hmac_drbg.h.

◆ HMAC_DRBG_MIN_ENTROPY

#define HMAC_DRBG_MIN_ENTROPY (   security_strength)    (security_strength)

Required minimum entropy for instantiate and reseed.

Parameters
security_strengthSecurity strength
Return values
min_entropyRequired minimum entropy

The minimum required entropy for HMAC_DRBG is equal to the security strength according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

Definition at line 142 of file hmac_drbg.h.

◆ HMAC_DRBG_MIN_ENTROPY_LEN_BYTES

#define HMAC_DRBG_MIN_ENTROPY_LEN_BYTES (   security_strength)    ( (security_strength) / 8 )

Minimum entropy input length.

Parameters
security_strengthSecurity strength
Return values
min_entropy_len_bytesRequired minimum entropy length (in bytes)

The minimum entropy input length for HMAC_DRBG is equal to the security strength according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

Definition at line 153 of file hmac_drbg.h.

◆ HMAC_DRBG_MAX_ENTROPY_LEN_BYTES

#define HMAC_DRBG_MAX_ENTROPY_LEN_BYTES   32

Maximum entropy input length.

The maximum entropy input length for HMAC_DRBG is 2^35 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2).

We choose to allow up to 32 bytes.

Definition at line 164 of file hmac_drbg.h.

◆ HMAC_DRBG_MAX_PERSONAL_LEN_BYTES

#define HMAC_DRBG_MAX_PERSONAL_LEN_BYTES   0xffffffffUL

Maximum personalisation string length.

The maximum permitted personalisation string length for HMAC_DRBG is 2^35 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 1 (NIST SP 800-90 Section 10.1 Table 2).

We choose to allow up to 2^32-1 bytes (i.e. 2^35-8 bits).

Definition at line 174 of file hmac_drbg.h.

◆ HMAC_DRBG_MAX_ADDITIONAL_LEN_BYTES

#define HMAC_DRBG_MAX_ADDITIONAL_LEN_BYTES   0xffffffffUL

Maximum additional input length.

The maximum permitted additional input length for HMAC_DRBG is 2^35 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 1 (NIST SP 800-90 Section 10.1 Table 2).

We choose to allow up to 2^32-1 bytes (i.e. 2^35-8 bits).

Definition at line 184 of file hmac_drbg.h.

◆ HMAC_DRBG_MAX_GENERATED_LEN_BYTES

#define HMAC_DRBG_MAX_GENERATED_LEN_BYTES   0x0000ffffUL

Maximum length of generated pseudorandom data per request.

The maximum number of bits per request for HMAC_DRBG is 2^19 bits according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 1 (NIST SP 800-90 Section 10.1 Table 2).

We choose to allow up to 2^16-1 bytes (i.e. 2^19-8 bits).

Definition at line 194 of file hmac_drbg.h.

◆ HMAC_DRBG_RESEED_INTERVAL

#define HMAC_DRBG_RESEED_INTERVAL   1024

Reseed interval.

The maximum permitted reseed interval for HMAC_DRBG is 2^48 according to ANS X9.82 Part 3-2007 Section 10.2.1 Table 2 (NIST SP 800-90 Section 10.1 Table 2). However, the sample implementation given in ANS X9.82 Part 3-2007 Annex E.2.1 (NIST SP 800-90 Appendix F.2) shows a reseed interval of 10000.

We choose a very conservative reseed interval.

Definition at line 206 of file hmac_drbg.h.

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL  )

◆ hmac_drbg_instantiate()

void hmac_drbg_instantiate ( struct digest_algorithm hash,
struct hmac_drbg_state state,
const void *  entropy,
size_t  entropy_len,
const void *  personal,
size_t  personal_len 
)

Instantiate HMAC_DRBG.

Parameters
hashUnderlying hash algorithm
stateHMAC_DRBG internal state to be initialised
entropyEntropy input
entropy_lenLength of entropy input
personalPersonalisation string
personal_lenLength of personalisation string

This is the HMAC_DRBG_Instantiate_algorithm function defined in ANS X9.82 Part 3-2007 Section 10.2.2.2.3 (NIST SP 800-90 Section 10.1.2.3).

The nonce must be included within the entropy input (i.e. the entropy input must contain at least 3/2 * security_strength bits of entropy, as per ANS X9.82 Part 3-2007 Section 8.4.2 (NIST SP 800-90 Section 8.6.7).

The key, value and reseed counter are updated in-place within the HMAC_DRBG internal state.

Definition at line 210 of file hmac_drbg.c.

213  {
214  size_t out_len = hash->digestsize;
215 
216  DBGC ( state, "HMAC_DRBG_%s %p instantiate\n", hash->name, state );
217 
218  /* Sanity checks */
219  assert ( hash != NULL );
220  assert ( state != NULL );
221  assert ( entropy != NULL );
222  assert ( ( personal != NULL ) || ( personal_len == 0 ) );
223 
224  /* 1. seed_material = entropy_input || nonce ||
225  * personalisation_string
226  */
227 
228  /* 2. Key = 0x00 00..00 */
229  memset ( state->key, 0x00, out_len );
230 
231  /* 3. V = 0x01 01...01 */
232  memset ( state->value, 0x01, out_len );
233 
234  /* 4. ( Key, V ) = HMAC_DBRG_Update ( seed_material, Key, V )
235  * 5. reseed_counter = 1
236  * 6. Return V, Key and reseed_counter as the
237  * initial_working_state
238  */
239  hmac_drbg_reseed ( hash, state, entropy, entropy_len,
240  personal, personal_len );
241 }
uint8_t state
State.
Definition: eth_slow.h:47
#define DBGC(...)
Definition: compiler.h:505
void hmac_drbg_reseed(struct digest_algorithm *hash, struct hmac_drbg_state *state, const void *entropy, size_t entropy_len, const void *additional, size_t additional_len)
Reseed HMAC_DRBG.
Definition: hmac_drbg.c:259
assert((readw(&hdr->flags) &(GTF_reading|GTF_writing))==0)
pseudo_bit_t hash[0x00010]
Hash algorithm.
Definition: arbel.h:13
#define NULL
NULL pointer (VOID *)
Definition: Base.h:362
void * memset(void *dest, int character, size_t len) __nonnull

References assert(), DBGC, hash, hmac_drbg_reseed(), memset(), NULL, and state.

Referenced by drbg_instantiate_algorithm().

◆ hmac_drbg_reseed()

void hmac_drbg_reseed ( struct digest_algorithm hash,
struct hmac_drbg_state state,
const void *  entropy,
size_t  entropy_len,
const void *  additional,
size_t  additional_len 
)

Reseed HMAC_DRBG.

Parameters
hashUnderlying hash algorithm
stateHMAC_DRBG internal state
entropyEntropy input
entropy_lenLength of entropy input
additionalAdditional input
additional_lenLength of additional input

This is the HMAC_DRBG_Reseed_algorithm function defined in ANS X9.82 Part 3-2007 Section 10.2.2.2.4 (NIST SP 800-90 Section 10.1.2.4).

The key, value and reseed counter are updated in-place within the HMAC_DRBG internal state.

Definition at line 259 of file hmac_drbg.c.

262  {
263  uint8_t seed_material[ entropy_len + additional_len ];
264 
265  DBGC ( state, "HMAC_DRBG_%s %p (re)seed\n", hash->name, state );
266 
267  /* Sanity checks */
268  assert ( hash != NULL );
269  assert ( state != NULL );
270  assert ( entropy != NULL );
271  assert ( ( additional != NULL ) || ( additional_len == 0 ) );
272 
273  /* 1. seed_material = entropy_input || additional_input */
274  memcpy ( seed_material, entropy, entropy_len );
275  memcpy ( ( seed_material + entropy_len ), additional, additional_len );
276  DBGC ( state, "HMAC_DRBG_%s %p seed material :\n", hash->name, state );
277  DBGC_HDA ( state, 0, seed_material, sizeof ( seed_material ) );
278 
279  /* 2. ( Key, V ) = HMAC_DBRG_Update ( seed_material, Key, V ) */
280  hmac_drbg_update ( hash, state, seed_material,
281  sizeof ( seed_material ) );
282 
283  /* 3. reseed_counter = 1 */
284  state->reseed_counter = 1;
285 
286  /* 4. Return V, Key and reseed_counter as the new_working_state */
287 }
uint8_t state
State.
Definition: eth_slow.h:47
#define DBGC(...)
Definition: compiler.h:505
void * memcpy(void *dest, const void *src, size_t len) __nonnull
uint16_t additional
Additional sense code and qualifier.
Definition: scsi.h:28
assert((readw(&hdr->flags) &(GTF_reading|GTF_writing))==0)
#define DBGC_HDA(...)
Definition: compiler.h:506
pseudo_bit_t hash[0x00010]
Hash algorithm.
Definition: arbel.h:13
unsigned char uint8_t
Definition: stdint.h:10
static void hmac_drbg_update(struct digest_algorithm *hash, struct hmac_drbg_state *state, const void *data, size_t len)
Update HMAC_DRBG internal state.
Definition: hmac_drbg.c:158
#define NULL
NULL pointer (VOID *)
Definition: Base.h:362

References additional, assert(), DBGC, DBGC_HDA, hash, hmac_drbg_update(), memcpy(), NULL, and state.

Referenced by drbg_reseed_algorithm(), and hmac_drbg_instantiate().

◆ hmac_drbg_generate()

int hmac_drbg_generate ( struct digest_algorithm hash,
struct hmac_drbg_state state,
const void *  additional,
size_t  additional_len,
void *  data,
size_t  len 
)

Generate pseudorandom bits using HMAC_DRBG.

Parameters
hashUnderlying hash algorithm
stateHMAC_DRBG internal state
additionalAdditional input
additional_lenLength of additional input
dataOutput buffer
lenLength of output buffer
Return values
rcReturn status code

This is the HMAC_DRBG_Generate_algorithm function defined in ANS X9.82 Part 3-2007 Section 10.2.2.2.5 (NIST SP 800-90 Section 10.1.2.5).

Requests must be for an integral number of bytes.

The key, value and reseed counter are updated in-place within the HMAC_DRBG internal state.

Note that the only permitted error is "reseed required".

Definition at line 310 of file hmac_drbg.c.

313  {
314  size_t out_len = hash->digestsize;
315  void *orig_data = data;
316  size_t orig_len = len;
317  size_t frag_len;
318 
319  DBGC ( state, "HMAC_DRBG_%s %p generate\n", hash->name, state );
320 
321  /* Sanity checks */
322  assert ( hash != NULL );
323  assert ( state != NULL );
324  assert ( data != NULL );
325  assert ( ( additional != NULL ) || ( additional_len == 0 ) );
326 
327  /* 1. If reseed_counter > reseed_interval, then return an
328  * indication that a reseed is required
329  */
330  if ( state->reseed_counter > HMAC_DRBG_RESEED_INTERVAL ) {
331  DBGC ( state, "HMAC_DRBG_%s %p reseed interval exceeded\n",
332  hash->name, state );
333  return -ESTALE;
334  }
335 
336  /* 2. If additional_input != Null, then
337  * ( Key, V ) = HMAC_DRBG_Update ( additional_input, Key, V )
338  */
339  if ( additional_len )
340  hmac_drbg_update ( hash, state, additional, additional_len );
341 
342  /* 3. temp = Null
343  * 4. While ( len ( temp ) < requested_number_of_bits ) do:
344  */
345  while ( len ) {
346 
347  /* 4.1 V = HMAC ( Key, V ) */
349 
350  /* 4.2. temp = temp || V
351  * 5. returned_bits = Leftmost requested_number_of_bits
352  * of temp
353  */
354  frag_len = len;
355  if ( frag_len > out_len )
356  frag_len = out_len;
357  memcpy ( data, state->value, frag_len );
358  data += frag_len;
359  len -= frag_len;
360  }
361 
362  /* 6. ( Key, V ) = HMAC_DRBG_Update ( additional_input, Key, V ) */
363  hmac_drbg_update ( hash, state, additional, additional_len );
364 
365  /* 7. reseed_counter = reseed_counter + 1 */
366  state->reseed_counter++;
367 
368  DBGC ( state, "HMAC_DRBG_%s %p generated :\n", hash->name, state );
369  DBGC_HDA ( state, 0, orig_data, orig_len );
370 
371  /* 8. Return SUCCESS, returned_bits, and the new values of
372  * Key, V and reseed_counter as the new_working_state
373  */
374  return 0;
375 }
uint8_t state
State.
Definition: eth_slow.h:47
#define DBGC(...)
Definition: compiler.h:505
void * memcpy(void *dest, const void *src, size_t len) __nonnull
uint16_t additional
Additional sense code and qualifier.
Definition: scsi.h:28
assert((readw(&hdr->flags) &(GTF_reading|GTF_writing))==0)
#define DBGC_HDA(...)
Definition: compiler.h:506
static void hmac_drbg_update_value(struct digest_algorithm *hash, struct hmac_drbg_state *state)
Update the HMAC_DRBG value.
Definition: hmac_drbg.c:123
#define HMAC_DRBG_RESEED_INTERVAL
Reseed interval.
Definition: hmac_drbg.h:206
pseudo_bit_t hash[0x00010]
Hash algorithm.
Definition: arbel.h:13
uint32_t len
Length.
Definition: ena.h:14
struct arbelprm_port_state_change_st data
Message.
Definition: arbel.h:12
static void hmac_drbg_update(struct digest_algorithm *hash, struct hmac_drbg_state *state, const void *data, size_t len)
Update HMAC_DRBG internal state.
Definition: hmac_drbg.c:158
#define NULL
NULL pointer (VOID *)
Definition: Base.h:362
#define ESTALE
Stale file handle.
Definition: errno.h:659

References additional, assert(), data, DBGC, DBGC_HDA, ESTALE, hash, HMAC_DRBG_RESEED_INTERVAL, hmac_drbg_update(), hmac_drbg_update_value(), len, memcpy(), NULL, and state.

Referenced by drbg_generate_algorithm().