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g10/tofu.c

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#include "options.h"		#include "options.h"
#include "../common/mbox-util.h"		#include "../common/mbox-util.h"
#include "../common/i18n.h"		#include "../common/i18n.h"
#include "../common/ttyio.h"		#include "../common/ttyio.h"
#include "trustdb.h"		#include "trustdb.h"
#include "../common/mkdir_p.h"		#include "../common/mkdir_p.h"
#include "gpgsql.h"		#include "gpgsql.h"
#include "../common/status.h"		#include "../common/status.h"
#include "sqrtu32.h"

#include "tofu.h"		#include "tofu.h"


#define CONTROL_L ('L' - 'A' + 1)		#define CONTROL_L ('L' - 'A' + 1)

/* Number of days with signed / ecnrypted messages required to		/* Number of days with signed / ecnrypted messages required to
* indicate that enough history is available for basic trust. */		* indicate that enough history is available for basic trust. */
▲ Show 20 Lines • Show All 2,863 Lines • ▼ Show 20 Lines	write_stats_status (estream_t fp,
unsigned long signature_days,		unsigned long signature_days,
unsigned long encryption_count,		unsigned long encryption_count,
unsigned long encryption_first_done,		unsigned long encryption_first_done,
unsigned long encryption_most_recent,		unsigned long encryption_most_recent,
unsigned long encryption_days)		unsigned long encryption_days)
{		{
int summary;		int summary;
int validity;		int validity;
unsigned long days;		unsigned long days_sq;

/* Use the euclidean distance (m = sqrt(a^2 + b^2)) rather then the		/* Use the euclidean distance (m = sqrt(a^2 + b^2)) rather then the
sum of the magnitudes (m = a + b) to ensure a balance between		sum of the magnitudes (m = a + b) to ensure a balance between
verified signatures and encrypted messages. */		verified signatures and encrypted messages. */
days = sqrtu32 (signature_days * signature_days		days_sq = signature_days * signature_days + encryption_days * encryption_days;
+ encryption_days * encryption_days);

if (days < 1)		if (days_sq < 1)
validity = 1; /* Key without history. */		validity = 1; /* Key without history. */
else if (days < 2 * BASIC_TRUST_THRESHOLD)		else if (days_sq < (2 * BASIC_TRUST_THRESHOLD) * (2 * BASIC_TRUST_THRESHOLD))
validity = 2; /* Key with too little history. */		validity = 2; /* Key with too little history. */
else if (days < 2 * FULL_TRUST_THRESHOLD)		else if (days_sq < (2 * FULL_TRUST_THRESHOLD) * (2 * FULL_TRUST_THRESHOLD))
validity = 3; /* Key with enough history for basic trust. */		validity = 3; /* Key with enough history for basic trust. */
else		else
validity = 4; /* Key with a lot of history. */		validity = 4; /* Key with a lot of history. */

if (policy == TOFU_POLICY_ASK)		if (policy == TOFU_POLICY_ASK)
summary = 0; /* Key requires attention. */		summary = 0; /* Key requires attention. */
else		else
summary = validity;		summary = validity;
▲ Show 20 Lines • Show All 281 Lines • ▼ Show 20 Lines	if (!outfp && !only_status_fd)
if (encryption_count == 0)		if (encryption_count == 0)
log_info (_("Warning: you have yet to encrypt"		log_info (_("Warning: you have yet to encrypt"
" a message to this key!\n"));		" a message to this key!\n"));
else if (encryption_count == 1)		else if (encryption_count == 1)
log_info (_("Warning: you have only encrypted"		log_info (_("Warning: you have only encrypted"
" one message to this key!\n"));		" one message to this key!\n"));

/* Cf. write_stats_status */		/* Cf. write_stats_status */
if (sqrtu32 (encryption_count * encryption_count		if ((encryption_count * encryption_count
+ signature_count * signature_count)		+ signature_count * signature_count)
< 2 * BASIC_TRUST_THRESHOLD)		< ((2 * BASIC_TRUST_THRESHOLD) * (2 * BASIC_TRUST_THRESHOLD)))
show_warning = 1;		show_warning = 1;
}		}
}		}

out:		out:
xfree (fingerprint_pp);		xfree (fingerprint_pp);

return show_warning;		return show_warning;
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