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Adopt the new hash API functions where they're useful.

This commit switches as many ssh_hash_free / ssh_hash_new pairs as
possible to reuse the previous hash object via ssh_hash_reset. Also a
few other cleanups: use the wrapper function hash_simple() where
possible, and I've also introduced ssh_hash_digest_nondestructive()
and switched to that where possible as well.
This commit is contained in:
Simon Tatham
2019-12-15 09:57:30 +00:00
parent 3fd334b5ca
commit 1344d4d1cd
12 changed files with 57 additions and 47 deletions

View File

@ -86,11 +86,7 @@ static char *obfuscate_name(const char *realname)
* We don't want to give away the length of the hostname either,
* so having got it back out of CryptProtectMemory we now hash it.
*/
{
ssh_hash *h = ssh_hash_new(&ssh_sha256);
put_string(h, cryptdata, cryptlen);
ssh_hash_final(h, digest);
}
hash_simple(&ssh_sha256, make_ptrlen(cryptdata, cryptlen), digest);
sfree(cryptdata);