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include/bearssl_x509.h  view on Meta::CPAN

} br_name_element;

/**
 * \brief Callback for validity date checks.
 *
 * The function receives as parameter an arbitrary user-provided context,
 * and the notBefore and notAfter dates specified in an X.509 certificate,
 * both expressed as a number of days and a number of seconds:
 *
 *   - Days are counted in a proleptic Gregorian calendar since
 *     January 1st, 0 AD. Year "0 AD" is the one that preceded "1 AD";
 *     it is also traditionally known as "1 BC".
 *
 *   - Seconds are counted since midnight, from 0 to 86400 (a count of
 *     86400 is possible only if a leap second happened).
 *
 * Each date and time is understood in the UTC time zone. The "Unix
 * Epoch" (January 1st, 1970, 00:00 UTC) corresponds to days=719528 and
 * seconds=0; the "Windows Epoch" (January 1st, 1601, 00:00 UTC) is
 * days=584754, seconds=0.

include/bearssl_x509.h  view on Meta::CPAN

 */
void br_x509_minimal_init_full(br_x509_minimal_context *ctx,
	const br_x509_trust_anchor *trust_anchors, size_t trust_anchors_num);

/**
 * \brief Set the validation time for the X.509 "minimal" engine.
 *
 * The validation time is set as two 32-bit integers, for days and
 * seconds since a fixed epoch:
 *
 *   - Days are counted in a proleptic Gregorian calendar since
 *     January 1st, 0 AD. Year "0 AD" is the one that preceded "1 AD";
 *     it is also traditionally known as "1 BC".
 *
 *   - Seconds are counted since midnight, from 0 to 86400 (a count of
 *     86400 is possible only if a leap second happened).
 *
 * The validation date and time is understood in the UTC time zone. The
 * "Unix Epoch" (January 1st, 1970, 00:00 UTC) corresponds to days=719528
 * and seconds=0; the "Windows Epoch" (January 1st, 1601, 00:00 UTC) is
 * days=584754, seconds=0.
 *
 * If the validation date and time are not explicitly set, but BearSSL
 * was compiled with support for the system clock on the underlying
 * platform, then the current time will automatically be used. Otherwise,
 * not setting the validation date and time implies a validation
 * failure (except in case of direct trust of the EE key).
 *
 * \param ctx       validation context.
 * \param days      days since January 1st, 0 AD (Gregorian calendar).
 * \param seconds   seconds since midnight (0 to 86400).
 */
static inline void
br_x509_minimal_set_time(br_x509_minimal_context *ctx,
	uint32_t days, uint32_t seconds)
{
	ctx->days = days;
	ctx->seconds = seconds;
	ctx->itime = 0;
}

src/x509/asn1.t0  view on Meta::CPAN

\ Maximum days in a month and accumulated day count. Each
\ 16-bit value contains the month day count in its lower 5 bits. The first
\ 12 values are for a normal year, the other 12 for a leap year.
data: month-to-days
hexb| 001F 03FC 077F 0B5E 0F1F 12FE 16BF 1A9F 1E7E 223F 261E 29DF |
hexb| 001F 03FD 079F 0B7E 0F3F 131E 16DF 1ABF 1E9E 225F 263E 29FF |

\ Read a date (UTCTime or GeneralizedTime). The date value is converted
\ to a day count and a second count. The day count starts at 0 for
\ January 1st, 0 AD (that's they year before 1 AD, also known as 1 BC)
\ in a proleptic Gregorian calendar (i.e. Gregorian rules are assumed to
\ extend indefinitely in the past). The second count is between 0 and
\ 86400 (inclusive, in case of a leap second).
: read-date ( lim -- lim days seconds )
	\ Read tag; must be UTCTime or GeneralizedTime. Year count is
	\ 4 digits with GeneralizedTime, 2 digits with UTCTime.
	read-tag
	dup 0x17 0x18 between? ifnot ERR_X509_BAD_TIME fail then
	0x18 = { y4d }
	check-primitive
	read-length-open-elt