This module bring weak hashes to Bunny Library. It can be used
to generate digest of short length for any other need than security.
The hash module header is lapin/hash.h.
typedef enum e_bunny_rgb
{
BH_MULTIPLIER,
BH_FNV,
BH_FNV_A,
BH_DJB2,
BH_SDBM,
BH_LOSELOSE,
BH_CUSTOM
}
t_bunny_rgb;
Description
This is the list of supported hash.
H_CUSTOM or any greater value
will trigger in
bunny_hash functions calls to customable function pointers.
Some notes about specific symbols
-
BH_MULTIPLIER:
This algorithm is efficient with strings.
-
BH_DJB2:
Seems quite efficient in terms of collision.
-
BH_LOSELOSE:
Checksum.
-
BH_CUSTOM:
Hashing with this algorithm of any higher value trigger the call to
gl_bunny_my_hash.
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Description
Generate a digest with the sent hash algorithm of data which is
of size length bytes.
Return value
Return the hash digest of the sent data.
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k
Parameters
-
t_bunny_hash hash:
The hash algorithm sent to bunny_hash, should be greater or
equal to BH_CUSTOM. Having it here allow you to define several
custom hashes.
-
const void *data:
The data to hash.
-
size_t length:
The length of the data to hash in bytes.
Return value
Return the digest of data of size length with your custom algorithm.
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Description
This function pointer type is used when
BH_CUSTOM is
sent as hash algorithm to
bunny_hash.
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Description
Generate a digest with the sent hash algorithm of data which is
of size length bytes and store it inside target. The size of the
hash will be target_length bytes.
Parameters
-
t_bunny_hash hash:
The algorithm to use. If BH_CUSTOM or any higher value is sent,
then gl_bunny_my_hash is called.
-
const void *data:
The data to hash.
-
size_t length:
The length in bytes of data.
-
void *target:
A memory space where to write the hash.
-
size_t target_length:
The size of the save memory space in bytes.
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