/usr/include/sodium/crypto_hash_sha256.h is in libsodium-dev 1.0.11-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | #ifndef crypto_hash_sha256_H
#define crypto_hash_sha256_H
/*
* WARNING: Unless you absolutely need to use SHA256 for interoperatibility,
* purposes, you might want to consider crypto_generichash() instead.
* Unlike SHA256, crypto_generichash() is not vulnerable to length
* extension attacks.
*/
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include "export.h"
#ifdef __cplusplus
# ifdef __GNUC__
# pragma GCC diagnostic ignored "-Wlong-long"
# endif
extern "C" {
#endif
typedef struct crypto_hash_sha256_state {
uint32_t state[8];
uint64_t count;
unsigned char buf[64];
} crypto_hash_sha256_state;
SODIUM_EXPORT
size_t crypto_hash_sha256_statebytes(void);
#define crypto_hash_sha256_BYTES 32U
SODIUM_EXPORT
size_t crypto_hash_sha256_bytes(void);
SODIUM_EXPORT
int crypto_hash_sha256(unsigned char *out, const unsigned char *in,
unsigned long long inlen);
SODIUM_EXPORT
int crypto_hash_sha256_init(crypto_hash_sha256_state *state);
SODIUM_EXPORT
int crypto_hash_sha256_update(crypto_hash_sha256_state *state,
const unsigned char *in,
unsigned long long inlen);
SODIUM_EXPORT
int crypto_hash_sha256_final(crypto_hash_sha256_state *state,
unsigned char *out);
#ifdef __cplusplus
}
#endif
#endif
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