Dash Core Source Documentation (0.16.0.1)

Find detailed information regarding the Dash Core source code.

sph_jh.h File Reference

JH interface. More...

#include <stddef.h>
#include <crypto/sph_types.h>
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Classes

struct  sph_jh_context
 This structure is a context for JH computations: it contains the intermediate values and some data from the last entered block. More...
 

Macros

#define SPH_SIZE_jh224   224
 Output size (in bits) for JH-224. More...
 
#define SPH_SIZE_jh256   256
 Output size (in bits) for JH-256. More...
 
#define SPH_SIZE_jh384   384
 Output size (in bits) for JH-384. More...
 
#define SPH_SIZE_jh512   512
 Output size (in bits) for JH-512. More...
 

Typedefs

typedef sph_jh_context sph_jh224_context
 Type for a JH-224 context (identical to the common context). More...
 
typedef sph_jh_context sph_jh256_context
 Type for a JH-256 context (identical to the common context). More...
 
typedef sph_jh_context sph_jh384_context
 Type for a JH-384 context (identical to the common context). More...
 
typedef sph_jh_context sph_jh512_context
 Type for a JH-512 context (identical to the common context). More...
 

Functions

void sph_jh224_init (void *cc)
 Initialize a JH-224 context. More...
 
void sph_jh224 (void *cc, const void *data, size_t len)
 Process some data bytes. More...
 
void sph_jh224_close (void *cc, void *dst)
 Terminate the current JH-224 computation and output the result into the provided buffer. More...
 
void sph_jh224_addbits_and_close (void *cc, unsigned ub, unsigned n, void *dst)
 Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (28 bytes). More...
 
void sph_jh256_init (void *cc)
 Initialize a JH-256 context. More...
 
void sph_jh256 (void *cc, const void *data, size_t len)
 Process some data bytes. More...
 
void sph_jh256_close (void *cc, void *dst)
 Terminate the current JH-256 computation and output the result into the provided buffer. More...
 
void sph_jh256_addbits_and_close (void *cc, unsigned ub, unsigned n, void *dst)
 Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (32 bytes). More...
 
void sph_jh384_init (void *cc)
 Initialize a JH-384 context. More...
 
void sph_jh384 (void *cc, const void *data, size_t len)
 Process some data bytes. More...
 
void sph_jh384_close (void *cc, void *dst)
 Terminate the current JH-384 computation and output the result into the provided buffer. More...
 
void sph_jh384_addbits_and_close (void *cc, unsigned ub, unsigned n, void *dst)
 Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (48 bytes). More...
 
void sph_jh512_init (void *cc)
 Initialize a JH-512 context. More...
 
void sph_jh512 (void *cc, const void *data, size_t len)
 Process some data bytes. More...
 
void sph_jh512_close (void *cc, void *dst)
 Terminate the current JH-512 computation and output the result into the provided buffer. More...
 
void sph_jh512_addbits_and_close (void *cc, unsigned ub, unsigned n, void *dst)
 Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (64 bytes). More...
 

Detailed Description

JH interface.

JH is a family of functions which differ by their output size; this implementation defines JH for output sizes 224, 256, 384 and 512 bits.

==========================(LICENSE BEGIN)============================

Copyright (c) 2007-2010 Projet RNRT SAPHIR

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

===========================(LICENSE END)=============================

Author
Thomas Pornin thoma.nosp@m.s.po.nosp@m.rnin@.nosp@m.cryp.nosp@m.tolog.nosp@m..com

Definition in file sph_jh.h.

Macro Definition Documentation

◆ SPH_SIZE_jh224

#define SPH_SIZE_jh224   224

Output size (in bits) for JH-224.

Definition at line 49 of file sph_jh.h.

◆ SPH_SIZE_jh256

#define SPH_SIZE_jh256   256

Output size (in bits) for JH-256.

Definition at line 54 of file sph_jh.h.

◆ SPH_SIZE_jh384

#define SPH_SIZE_jh384   384

Output size (in bits) for JH-384.

Definition at line 59 of file sph_jh.h.

◆ SPH_SIZE_jh512

#define SPH_SIZE_jh512   512

Output size (in bits) for JH-512.

Definition at line 64 of file sph_jh.h.

Typedef Documentation

◆ sph_jh224_context

Type for a JH-224 context (identical to the common context).

Definition at line 97 of file sph_jh.h.

◆ sph_jh256_context

Type for a JH-256 context (identical to the common context).

Definition at line 102 of file sph_jh.h.

◆ sph_jh384_context

Type for a JH-384 context (identical to the common context).

Definition at line 107 of file sph_jh.h.

◆ sph_jh512_context

Type for a JH-512 context (identical to the common context).

Definition at line 112 of file sph_jh.h.

Function Documentation

◆ sph_jh224()

void sph_jh224 ( void *  cc,
const void *  data,
size_t  len 
)

Process some data bytes.

It is acceptable that len is zero (in which case this function does nothing).

Parameters
ccthe JH-224 context
datathe input data
lenthe input data length (in bytes)

Definition at line 1011 of file jh.c.

References jh_core().

◆ sph_jh224_addbits_and_close()

void sph_jh224_addbits_and_close ( void *  cc,
unsigned  ub,
unsigned  n,
void *  dst 
)

Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (28 bytes).

If bit number i in ub has value 2^i, then the extra bits are those numbered 7 downto 8-n (this is the big-endian convention at the byte level). The context is automatically reinitialized.

Parameters
ccthe JH-224 context
ubthe extra bits
nthe number of extra bits (0 to 7)
dstthe destination buffer

Definition at line 1025 of file jh.c.

References IV224, and jh_close().

◆ sph_jh224_close()

void sph_jh224_close ( void *  cc,
void *  dst 
)

Terminate the current JH-224 computation and output the result into the provided buffer.

The destination buffer must be wide enough to accomodate the result (28 bytes). The context is automatically reinitialized.

Parameters
ccthe JH-224 context
dstthe destination buffer

Definition at line 1018 of file jh.c.

References IV224, and jh_close().

◆ sph_jh224_init()

void sph_jh224_init ( void *  cc)

Initialize a JH-224 context.

This process performs no memory allocation.

Parameters
ccthe JH-224 context (pointer to a sph_jh224_context)

Definition at line 1004 of file jh.c.

References IV224, and jh_init().

◆ sph_jh256()

void sph_jh256 ( void *  cc,
const void *  data,
size_t  len 
)

Process some data bytes.

It is acceptable that len is zero (in which case this function does nothing).

Parameters
ccthe JH-256 context
datathe input data
lenthe input data length (in bytes)

Definition at line 1039 of file jh.c.

References jh_core().

◆ sph_jh256_addbits_and_close()

void sph_jh256_addbits_and_close ( void *  cc,
unsigned  ub,
unsigned  n,
void *  dst 
)

Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (32 bytes).

If bit number i in ub has value 2^i, then the extra bits are those numbered 7 downto 8-n (this is the big-endian convention at the byte level). The context is automatically reinitialized.

Parameters
ccthe JH-256 context
ubthe extra bits
nthe number of extra bits (0 to 7)
dstthe destination buffer

Definition at line 1053 of file jh.c.

References IV256, and jh_close().

◆ sph_jh256_close()

void sph_jh256_close ( void *  cc,
void *  dst 
)

Terminate the current JH-256 computation and output the result into the provided buffer.

The destination buffer must be wide enough to accomodate the result (32 bytes). The context is automatically reinitialized.

Parameters
ccthe JH-256 context
dstthe destination buffer

Definition at line 1046 of file jh.c.

References IV256, and jh_close().

◆ sph_jh256_init()

void sph_jh256_init ( void *  cc)

Initialize a JH-256 context.

This process performs no memory allocation.

Parameters
ccthe JH-256 context (pointer to a sph_jh256_context)

Definition at line 1032 of file jh.c.

References IV256, and jh_init().

◆ sph_jh384()

void sph_jh384 ( void *  cc,
const void *  data,
size_t  len 
)

Process some data bytes.

It is acceptable that len is zero (in which case this function does nothing).

Parameters
ccthe JH-384 context
datathe input data
lenthe input data length (in bytes)

Definition at line 1067 of file jh.c.

References jh_core().

◆ sph_jh384_addbits_and_close()

void sph_jh384_addbits_and_close ( void *  cc,
unsigned  ub,
unsigned  n,
void *  dst 
)

Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (48 bytes).

If bit number i in ub has value 2^i, then the extra bits are those numbered 7 downto 8-n (this is the big-endian convention at the byte level). The context is automatically reinitialized.

Parameters
ccthe JH-384 context
ubthe extra bits
nthe number of extra bits (0 to 7)
dstthe destination buffer

Definition at line 1081 of file jh.c.

References IV384, and jh_close().

◆ sph_jh384_close()

void sph_jh384_close ( void *  cc,
void *  dst 
)

Terminate the current JH-384 computation and output the result into the provided buffer.

The destination buffer must be wide enough to accomodate the result (48 bytes). The context is automatically reinitialized.

Parameters
ccthe JH-384 context
dstthe destination buffer

Definition at line 1074 of file jh.c.

References IV384, and jh_close().

◆ sph_jh384_init()

void sph_jh384_init ( void *  cc)

Initialize a JH-384 context.

This process performs no memory allocation.

Parameters
ccthe JH-384 context (pointer to a sph_jh384_context)

Definition at line 1060 of file jh.c.

References IV384, and jh_init().

◆ sph_jh512()

void sph_jh512 ( void *  cc,
const void *  data,
size_t  len 
)

Process some data bytes.

It is acceptable that len is zero (in which case this function does nothing).

Parameters
ccthe JH-512 context
datathe input data
lenthe input data length (in bytes)

Definition at line 1095 of file jh.c.

References jh_core().

Referenced by HashX11().

◆ sph_jh512_addbits_and_close()

void sph_jh512_addbits_and_close ( void *  cc,
unsigned  ub,
unsigned  n,
void *  dst 
)

Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (64 bytes).

If bit number i in ub has value 2^i, then the extra bits are those numbered 7 downto 8-n (this is the big-endian convention at the byte level). The context is automatically reinitialized.

Parameters
ccthe JH-512 context
ubthe extra bits
nthe number of extra bits (0 to 7)
dstthe destination buffer

Definition at line 1109 of file jh.c.

References IV512, and jh_close().

◆ sph_jh512_close()

void sph_jh512_close ( void *  cc,
void *  dst 
)

Terminate the current JH-512 computation and output the result into the provided buffer.

The destination buffer must be wide enough to accomodate the result (64 bytes). The context is automatically reinitialized.

Parameters
ccthe JH-512 context
dstthe destination buffer

Definition at line 1102 of file jh.c.

References IV512, and jh_close().

Referenced by HashX11().

◆ sph_jh512_init()

void sph_jh512_init ( void *  cc)

Initialize a JH-512 context.

This process performs no memory allocation.

Parameters
ccthe JH-512 context (pointer to a sph_jh512_context)

Definition at line 1088 of file jh.c.

References IV512, and jh_init().

Referenced by HashX11().

Released under the MIT license