crypto_hash.c File Reference

SHA-512 GNUNET_CRYPTO_hash() related functions. More...

#include "platform.h"
#include "gnunet_util_lib.h"
#include "benchmark.h"
#include <gcrypt.h>

Include dependency graph for crypto_hash.c:

Go to the source code of this file.

Data Structures
struct	GNUNET_HashContext

Macros
#define	LOG(kind, ...)   GNUNET_log_from (kind, "util-crypto-hash", __VA_ARGS__)
#define	LOG_STRERROR_FILE(kind, syscall, filename)

Functions
void	GNUNET_CRYPTO_hash (const void *block, size_t size, struct GNUNET_HashCode *ret)
	Compute hash of a given block. More...
void	GNUNET_CRYPTO_hash_to_enc (const struct GNUNET_HashCode *block, struct GNUNET_CRYPTO_HashAsciiEncoded *result)
	Convert hash to ASCII encoding. More...
enum GNUNET_GenericReturnValue	GNUNET_CRYPTO_hash_from_string2 (const char *enc, size_t enclen, struct GNUNET_HashCode *result)
	Convert ASCII encoding back to a 'struct GNUNET_HashCode'. More...
unsigned int	GNUNET_CRYPTO_hash_distance_u32 (const struct GNUNET_HashCode *a, const struct GNUNET_HashCode *b)
	Compute the distance between 2 hashcodes. More...
void	GNUNET_CRYPTO_hash_create_random (enum GNUNET_CRYPTO_Quality mode, struct GNUNET_HashCode *result)
	Create a random hash code. More...
void	GNUNET_CRYPTO_hash_difference (const struct GNUNET_HashCode *a, const struct GNUNET_HashCode *b, struct GNUNET_HashCode *result)
	compute result = b - a More...
void	GNUNET_CRYPTO_hash_sum (const struct GNUNET_HashCode *a, const struct GNUNET_HashCode *delta, struct GNUNET_HashCode *result)
	compute result = a + delta More...
void	GNUNET_CRYPTO_hash_xor (const struct GNUNET_HashCode *a, const struct GNUNET_HashCode *b, struct GNUNET_HashCode *result)
	compute result = a ^ b More...
void	GNUNET_CRYPTO_hash_to_aes_key (const struct GNUNET_HashCode *hc, struct GNUNET_CRYPTO_SymmetricSessionKey *skey, struct GNUNET_CRYPTO_SymmetricInitializationVector *iv)
	Convert a hashcode into a key. More...
unsigned int	GNUNET_CRYPTO_hash_count_leading_zeros (const struct GNUNET_HashCode *h)
	Count the number of leading 0 bits in h. More...
unsigned int	GNUNET_CRYPTO_hash_count_tailing_zeros (const struct GNUNET_HashCode *h)
	Count the number of tailing 0 bits in h. More...
int	GNUNET_CRYPTO_hash_cmp (const struct GNUNET_HashCode *h1, const struct GNUNET_HashCode *h2)
	Compare function for HashCodes, producing a total ordering of all hashcodes. More...
int	GNUNET_CRYPTO_hash_xorcmp (const struct GNUNET_HashCode *h1, const struct GNUNET_HashCode *h2, const struct GNUNET_HashCode *target)
	Find out which of the two GNUNET_CRYPTO_hash codes is closer to target in the XOR metric (Kademlia). More...
void	GNUNET_CRYPTO_hmac_derive_key (struct GNUNET_CRYPTO_AuthKey *key, const struct GNUNET_CRYPTO_SymmetricSessionKey *rkey, const void *salt, size_t salt_len,...)
	Derive an authentication key. More...
void	GNUNET_CRYPTO_hmac_derive_key_v (struct GNUNET_CRYPTO_AuthKey *key, const struct GNUNET_CRYPTO_SymmetricSessionKey *rkey, const void *salt, size_t salt_len, va_list argp)
	Derive an authentication key. More...
void	GNUNET_CRYPTO_hmac_raw (const void *key, size_t key_len, const void *plaintext, size_t plaintext_len, struct GNUNET_HashCode *hmac)
	Calculate HMAC of a message (RFC 2104) TODO: Shouldn't this be the standard hmac function and the above be renamed? More...
void	GNUNET_CRYPTO_hmac (const struct GNUNET_CRYPTO_AuthKey *key, const void *plaintext, size_t plaintext_len, struct GNUNET_HashCode *hmac)
	Calculate HMAC of a message (RFC 2104) More...
struct GNUNET_HashContext *	GNUNET_CRYPTO_hash_context_start ()
	Start incremental hashing operation. More...
void	GNUNET_CRYPTO_hash_context_read (struct GNUNET_HashContext *hc, const void *buf, size_t size)
	Add data to be hashed. More...
struct GNUNET_HashContext *	GNUNET_CRYPTO_hash_context_copy (const struct GNUNET_HashContext *hc)
	Make a copy of the hash computation. More...
void	GNUNET_CRYPTO_hash_context_finish (struct GNUNET_HashContext *hc, struct GNUNET_HashCode *r_hash)
	Finish the hash computation. More...
void	GNUNET_CRYPTO_hash_context_abort (struct GNUNET_HashContext *hc)
	Abort hashing, do not bother calculating final result. More...

Detailed Description

SHA-512 GNUNET_CRYPTO_hash() related functions.

Author

Christian Grothoff

Definition in file crypto_hash.c.

Macro Definition Documentation

LOG

#define LOG	(		kind,
			...
	)		GNUNET_log_from (kind, "util-crypto-hash", __VA_ARGS__)

Definition at line 32 of file crypto_hash.c.

LOG_STRERROR_FILE

#define LOG_STRERROR_FILE	(		kind,
			syscall,
			filename
	)

Value:

                                                                   GNUNET_log_from_strerror_file (kind, \
                                                                   "util-crypto-hash", \
                                                                   syscall, \
                                                                   filename)

Definition at line 34 of file crypto_hash.c.