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Fixed a regression in 2.0.14

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This commit is contained in:
Werner Koch 2010-01-26 16:33:58 +00:00
parent 2437911903
commit 5f5091ed79
3 changed files with 27 additions and 13 deletions
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3
NEWS
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@ -3,6 +3,9 @@ Noteworthy changes in version 2.0.15 (unreleased)
* New command --passwd for GPG.
* Fixes a regression in 2.0.14 which prevented unprotection of new
or changed gpg-agent passphrases.
Noteworthy changes in version 2.0.14 (2009-12-21)
-------------------------------------------------

5
agent/ChangeLog
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@ -1,3 +1,8 @@
2010-01-26 Werner Koch <wk@g10code.com>
* protect.c (do_encryption): Encode the s2kcount and do not use a
static value of 96.
2009-12-21 Werner Koch <wk@g10code.com>
* command.c (cmd_getinfo): Add sub-command "s2k_count".

32
agent/protect.c
View File

@ -360,19 +360,25 @@ do_encryption (const unsigned char *protbegin, size_t protlen,
in canoncical format of course. We use asprintf and %n modifier
and dummy values as placeholders. */
p = xtryasprintf
("(9:protected%d:%s((4:sha18:%n_8bytes_2:96)%d:%n%*s)%d:%n%*s)",
(int)strlen (modestr), modestr,
&saltpos,
blklen, &ivpos, blklen, "",
enclen, &encpos, enclen, "");
if (!p)
{
gpg_error_t tmperr = out_of_core ();
xfree (iv);
xfree (outbuf);
return tmperr;
}
{
char countbuf[35];
snprintf (countbuf, sizeof countbuf, "%lu", get_standard_s2k_count ());
p = xtryasprintf
("(9:protected%d:%s((4:sha18:%n_8bytes_%u:%s)%d:%n%*s)%d:%n%*s)",
(int)strlen (modestr), modestr,
&saltpos,
(unsigned int)strlen (countbuf), countbuf,
blklen, &ivpos, blklen, "",
enclen, &encpos, enclen, "");
if (!p)
{
gpg_error_t tmperr = out_of_core ();
xfree (iv);
xfree (outbuf);
return tmperr;
}
}
*resultlen = strlen (p);
*result = (unsigned char*)p;
memcpy (p+saltpos, iv+2*blklen, 8);