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common: New function to map hash algo names.

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* common/sexputil.c (hash_algo_to_string): New.
--

Libgcrypt expects lowercase names and it is cumbersome to downcase
those retrieved via gcry_md_algo_name.  It is easier and also faster
to use a dedicated map function.
This commit is contained in:
Werner Koch 2020-04-09 12:13:49 +02:00
parent bfedc760ef
commit 5d5b70ae0f
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2 changed files with 42 additions and 0 deletions
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common/util.h
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@ -202,6 +202,7 @@ int get_pk_algo_from_key (gcry_sexp_t key);
int get_pk_algo_from_canon_sexp (const unsigned char *keydata,
size_t keydatalen);
char *pubkey_algo_string (gcry_sexp_t s_pkey, enum gcry_pk_algos *r_algoid);
const char *hash_algo_to_string (int algo);
/*-- convert.c --*/
int hex2bin (const char *string, void *buffer, size_t length);