Mercurial > dropbear
view libtomcrypt/src/mac/f9/f9_done.c @ 1921:284c3837891c
Allow user space file locations (rootless support)
Why:
Running dropbear as a user (rootless) is aided if
files and programs can be saved/removed without
needing sudo.
What:
Use the same convention as DROPBEAR_DEFAULT_CLI_AUTHKEY;
if not starting with '/', then is relative to hedge's /home/hedge:
*_PRIV_FILENAME
DROPBEAR_PIDFILE
SFTPSERVER_PATH
default_options.h commentary added.
Changes kept to a minimum, so log entry in svr_kex.c#163
is refactored.
From:
Generated hostkey is <path> ... <finger-print>
to:
Generated hostkey path is <path>
Generated hostkey fingerprint is <fp>
Otherwise the unexpanded path was reported.
Patch modified by Matt Johnston
Signed-off-by: Begley Brothers Inc <[email protected]>
author | Begley Brothers Inc <begleybrothers@gmail.com> |
---|---|
date | Thu, 09 Jul 2020 17:47:58 +1000 |
parents | 6dba84798cd5 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ #include "tomcrypt.h" /** @file f9_done.c f9 Support, terminate the state */ #ifdef LTC_F9_MODE /** Terminate the f9-MAC state @param f9 f9 state to terminate @param out [out] Destination for the MAC tag @param outlen [in/out] Destination size and final tag size Return CRYPT_OK on success */ int f9_done(f9_state *f9, unsigned char *out, unsigned long *outlen) { int err, x; LTC_ARGCHK(f9 != NULL); LTC_ARGCHK(out != NULL); /* check structure */ if ((err = cipher_is_valid(f9->cipher)) != CRYPT_OK) { return err; } if ((f9->blocksize > cipher_descriptor[f9->cipher].block_length) || (f9->blocksize < 0) || (f9->buflen > f9->blocksize) || (f9->buflen < 0)) { return CRYPT_INVALID_ARG; } if (f9->buflen != 0) { /* encrypt */ cipher_descriptor[f9->cipher].ecb_encrypt(f9->IV, f9->IV, &f9->key); f9->buflen = 0; for (x = 0; x < f9->blocksize; x++) { f9->ACC[x] ^= f9->IV[x]; } } /* schedule modified key */ if ((err = cipher_descriptor[f9->cipher].setup(f9->akey, f9->keylen, 0, &f9->key)) != CRYPT_OK) { return err; } /* encrypt the ACC */ cipher_descriptor[f9->cipher].ecb_encrypt(f9->ACC, f9->ACC, &f9->key); cipher_descriptor[f9->cipher].done(&f9->key); /* extract tag */ for (x = 0; x < f9->blocksize && (unsigned long)x < *outlen; x++) { out[x] = f9->ACC[x]; } *outlen = x; #ifdef LTC_CLEAN_STACK zeromem(f9, sizeof(*f9)); #endif return CRYPT_OK; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */