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git.ipfire.org Git - thirdparty/systemd.git/blob - src/basic/khash.h
1 /* SPDX-License-Identifier: LGPL-2.1+ */
10 typedef struct khash khash
;
12 int khash_supported(void);
14 /* For plain hash functions. Hash functions commonly supported on today's kernels are: crc32c, crct10dif, crc32,
15 * sha224, sha256, sha512, sha384, sha1, md5, md4, sha3-224, sha3-256, sha3-384, sha3-512, and more. */
16 int khash_new(khash
**ret
, const char *algorithm
);
18 /* For keyed hash functions. Hash functions commonly supported on today's kernels are: hmac(sha256), cmac(aes),
19 * cmac(des3_ede), hmac(sha3-512), hmac(sha3-384), hmac(sha3-256), hmac(sha3-224), hmac(rmd160), hmac(rmd128),
20 * hmac(sha224), hmac(sha512), hmac(sha384), hmac(sha1), hmac(md5), and more. */
21 int khash_new_with_key(khash
**ret
, const char *algorithm
, const void *key
, size_t key_size
);
23 int khash_dup(khash
*h
, khash
**ret
);
24 khash
* khash_unref(khash
*h
);
26 const char *khash_get_algorithm(khash
*h
);
27 size_t khash_get_size(khash
*h
);
29 int khash_reset(khash
*h
);
31 int khash_put(khash
*h
, const void *buffer
, size_t size
);
32 int khash_put_iovec(khash
*h
, const struct iovec
*iovec
, size_t n
);
34 int khash_digest_data(khash
*h
, const void **ret
);
35 int khash_digest_string(khash
*h
, char **ret
);
37 DEFINE_TRIVIAL_CLEANUP_FUNC(khash
*, khash_unref
);