phpseclib\File\ASN1 Class Reference

Collaboration diagram for phpseclib\File\ASN1:

Public Member Functions
	decodeBER ($encoded)
	Parse BER-encoding. More...
	_decode_ber ($encoded, $start=0)
	Parse BER-encoding (Helper function) More...
	asn1map ($decoded, $mapping, $special=array())
	ASN.1 Map. More...
	encodeDER ($source, $mapping, $special=array())
	ASN.1 Encode. More...
	_encode_der ($source, $mapping, $idx=null, $special=array())
	ASN.1 Encode (Helper function) More...
	_encodeLength ($length)
	DER-encode the length. More...
	_decodeTime ($content, $tag)
	BER-decode the time. More...
	setTimeFormat ($format)
	Set the time format. More...
	loadOIDs ($oids)
	Load OIDs. More...
	loadFilters ($filters)
	Load filters. More...
	_string_shift (&$string, $index=1)
	String Shift. More...
	convert ($in, $from=self::TYPE_UTF8_STRING, $to=self::TYPE_UTF8_STRING)
	String type conversion. More...

Data Fields
const	CLASS_UNIVERSAL = 0
	#+ Tag Classes More...
const	CLASS_APPLICATION = 1
const	CLASS_CONTEXT_SPECIFIC = 2
const	CLASS_PRIVATE = 3
const	TYPE_BOOLEAN = 1
	#- More...
const	TYPE_INTEGER = 2
const	TYPE_BIT_STRING = 3
const	TYPE_OCTET_STRING = 4
const	TYPE_NULL = 5
const	TYPE_OBJECT_IDENTIFIER = 6
const	TYPE_REAL = 9
const	TYPE_ENUMERATED = 10
const	TYPE_UTF8_STRING = 12
const	TYPE_SEQUENCE = 16
const	TYPE_SET = 17
const	TYPE_NUMERIC_STRING = 18
	#- More...
const	TYPE_PRINTABLE_STRING = 19
const	TYPE_TELETEX_STRING = 20
const	TYPE_VIDEOTEX_STRING = 21
const	TYPE_IA5_STRING = 22
const	TYPE_UTC_TIME = 23
const	TYPE_GENERALIZED_TIME = 24
const	TYPE_GRAPHIC_STRING = 25
const	TYPE_VISIBLE_STRING = 26
const	TYPE_GENERAL_STRING = 27
const	TYPE_UNIVERSAL_STRING = 28
const	TYPE_BMP_STRING = 30
const	TYPE_CHOICE = -1
	#- More...
const	TYPE_ANY = -2
	$oids = array()
	$format = 'D, d M Y H:i:s O'
	$encoded
	$filters
	$ANYmap
	$stringTypeSize

Detailed Description

Definition at line 36 of file ASN1.php.

Member Function Documentation

_decode_ber()

phpseclib\File\ASN1::_decode_ber	(		$encoded,
			$start = 0
	)

Parse BER-encoding (Helper function)

Sometimes we want to get the BER encoding of a particular tag. $start lets us do that without having to reencode. $encoded is passed by reference for the recursive calls done for self::TYPE_BIT_STRING and self::TYPE_OCTET_STRING. In those cases, the indefinite length is used.

Parameters

string	$encoded
int	$start

Returns

array @access private

Definition at line 230 of file ASN1.php.

    {
        $current = array('start' => $start);
 
        $type = ord($this->_string_shift($encoded));
        $start++;
 
        $constructed = ($type >> 5) & 1;
 
        $tag = $type & 0x1F;
        if ($tag == 0x1F) {
            $tag = 0;
            // process septets (since the eighth bit is ignored, it's not an octet)
            do {
                $loop = ord($encoded[0]) >> 7;
                $tag <<= 7;
                $tag |= ord($this->_string_shift($encoded)) & 0x7F;
                $start++;
            } while ($loop);
        }
 
        // Length, as discussed in paragraph 8.1.3 of X.690-0207.pdf#page=13
        $length = ord($this->_string_shift($encoded));
        $start++;
        if ($length == 0x80) { // indefinite length
            // "[A sender shall] use the indefinite form (see 8.1.3.6) if the encoding is constructed and is not all
            //  immediately available." -- paragraph 8.1.3.2.c
            $length = strlen($encoded);
        } elseif ($length & 0x80) { // definite length, long form
            // technically, the long form of the length can be represented by up to 126 octets (bytes), but we'll only
            // support it up to four.
            $length&= 0x7F;
            $temp = $this->_string_shift($encoded, $length);
            // tags of indefinte length don't really have a header length; this length includes the tag
            $current+= array('headerlength' => $length + 2);
            $start+= $length;
            extract(unpack('Nlength', substr(str_pad($temp, 4, chr(0), STR_PAD_LEFT), -4)));
        } else {
            $current+= array('headerlength' => 2);
        }
 
        if ($length > strlen($encoded)) {
            return false;
        }
 
        $content = $this->_string_shift($encoded, $length);
 
        // at this point $length can be overwritten. it's only accurate for definite length things as is
 
        /* Class is UNIVERSAL, APPLICATION, PRIVATE, or CONTEXT-SPECIFIC. The UNIVERSAL class is restricted to the ASN.1
           built-in types. It defines an application-independent data type that must be distinguishable from all other
           data types. The other three classes are user defined. The APPLICATION class distinguishes data types that
           have a wide, scattered use within a particular presentation context. PRIVATE distinguishes data types within
           a particular organization or country. CONTEXT-SPECIFIC distinguishes members of a sequence or set, the
           alternatives of a CHOICE, or universally tagged set members. Only the class number appears in braces for this
           data type; the term CONTEXT-SPECIFIC does not appear.
 
             -- http://www.obj-sys.com/asn1tutorial/node12.html */
        $class = ($type >> 6) & 3;
        switch ($class) {
            case self::CLASS_APPLICATION:
            case self::CLASS_PRIVATE:
            case self::CLASS_CONTEXT_SPECIFIC:
                if (!$constructed) {
                    return array(
                        'type'     => $class,
                        'constant' => $tag,
                        'content'  => $content,
                        'length'   => $length + $start - $current['start']
                    );
                }
 
                $newcontent = array();
                $remainingLength = $length;
                while ($remainingLength > 0) {
                    $temp = $this->_decode_ber($content, $start);
                    $length = $temp['length'];
                    // end-of-content octets - see paragraph 8.1.5
                    if (substr($content, $length, 2) == "\0\0") {
                        $length+= 2;
                        $start+= $length;
                        $newcontent[] = $temp;
                        break;
                    }
                    $start+= $length;
                    $remainingLength-= $length;
                    $newcontent[] = $temp;
                    $this->_string_shift($content, $length);
                }
 
                return array(
                    'type'     => $class,
                    'constant' => $tag,
                    // the array encapsulation is for BC with the old format
                    'content'  => $newcontent,
                    // the only time when $content['headerlength'] isn't defined is when the length is indefinite.
                    // the absence of $content['headerlength'] is how we know if something is indefinite or not.
                    // technically, it could be defined to be 2 and then another indicator could be used but whatever.
                    'length'   => $start - $current['start']
                ) + $current;
        }
 
        $current+= array('type' => $tag);
 
        // decode UNIVERSAL tags
        switch ($tag) {
            case self::TYPE_BOOLEAN:
                // "The contents octets shall consist of a single octet." -- paragraph 8.2.1
                //if (strlen($content) != 1) {
                //    return false;
                //}
                $current['content'] = (bool) ord($content[0]);
                break;
            case self::TYPE_INTEGER:
            case self::TYPE_ENUMERATED:
                $current['content'] = new BigInteger($content, -256);
                break;
            case self::TYPE_REAL: // not currently supported
                return false;
            case self::TYPE_BIT_STRING:
                // The initial octet shall encode, as an unsigned binary integer with bit 1 as the least significant bit,
                // the number of unused bits in the final subsequent octet. The number shall be in the range zero to
                // seven.
                if (!$constructed) {
                    $current['content'] = $content;
                } else {
                    $temp = $this->_decode_ber($content, $start);
                    $length-= strlen($content);
                    $last = count($temp) - 1;
                    for ($i = 0; $i < $last; $i++) {
                        // all subtags should be bit strings
                        //if ($temp[$i]['type'] != self::TYPE_BIT_STRING) {
                        //    return false;
                        //}
                        $current['content'].= substr($temp[$i]['content'], 1);
                    }
                    // all subtags should be bit strings
                    //if ($temp[$last]['type'] != self::TYPE_BIT_STRING) {
                    //    return false;
                    //}
                    $current['content'] = $temp[$last]['content'][0] . $current['content'] . substr($temp[$i]['content'], 1);
                }
                break;
            case self::TYPE_OCTET_STRING:
                if (!$constructed) {
                    $current['content'] = $content;
                } else {
                    $current['content'] = '';
                    $length = 0;
                    while (substr($content, 0, 2) != "\0\0") {
                        $temp = $this->_decode_ber($content, $length + $start);
                        $this->_string_shift($content, $temp['length']);
                        // all subtags should be octet strings
                        //if ($temp['type'] != self::TYPE_OCTET_STRING) {
                        //    return false;
                        //}
                        $current['content'].= $temp['content'];
                        $length+= $temp['length'];
                    }
                    if (substr($content, 0, 2) == "\0\0") {
                        $length+= 2; // +2 for the EOC
                    }
                }
                break;
            case self::TYPE_NULL:
                // "The contents octets shall not contain any octets." -- paragraph 8.8.2
                //if (strlen($content)) {
                //    return false;
                //}
                break;
            case self::TYPE_SEQUENCE:
            case self::TYPE_SET:
                $offset = 0;
                $current['content'] = array();
                while (strlen($content)) {
                    // if indefinite length construction was used and we have an end-of-content string next
                    // see paragraphs 8.1.1.3, 8.1.3.2, 8.1.3.6, 8.1.5, and (for an example) 8.6.4.2
                    if (!isset($current['headerlength']) && substr($content, 0, 2) == "\0\0") {
                        $length = $offset + 2; // +2 for the EOC
                        break 2;
                    }
                    $temp = $this->_decode_ber($content, $start + $offset);
                    $this->_string_shift($content, $temp['length']);
                    $current['content'][] = $temp;
                    $offset+= $temp['length'];
                }
                break;
            case self::TYPE_OBJECT_IDENTIFIER:
                $temp = ord($this->_string_shift($content));
                $current['content'] = sprintf('%d.%d', floor($temp / 40), $temp % 40);
                $valuen = 0;
                // process septets
                while (strlen($content)) {
                    $temp = ord($this->_string_shift($content));
                    $valuen <<= 7;
                    $valuen |= $temp & 0x7F;
                    if (~$temp & 0x80) {
                        $current['content'].= ".$valuen";
                        $valuen = 0;
                    }
                }
                // the eighth bit of the last byte should not be 1
                //if ($temp >> 7) {
                //    return false;
                //}
                break;
            /* Each character string type shall be encoded as if it had been declared:
               [UNIVERSAL x] IMPLICIT OCTET STRING
 
                 -- X.690-0207.pdf#page=23 (paragraph 8.21.3)
 
               Per that, we're not going to do any validation.  If there are any illegal characters in the string,
               we don't really care */
            case self::TYPE_NUMERIC_STRING:
                // 0,1,2,3,4,5,6,7,8,9, and space
            case self::TYPE_PRINTABLE_STRING:
                // Upper and lower case letters, digits, space, apostrophe, left/right parenthesis, plus sign, comma,
                // hyphen, full stop, solidus, colon, equal sign, question mark
            case self::TYPE_TELETEX_STRING:
                // The Teletex character set in CCITT's T61, space, and delete
                // see http://en.wikipedia.org/wiki/Teletex#Character_sets
            case self::TYPE_VIDEOTEX_STRING:
                // The Videotex character set in CCITT's T.100 and T.101, space, and delete
            case self::TYPE_VISIBLE_STRING:
                // Printing character sets of international ASCII, and space
            case self::TYPE_IA5_STRING:
                // International Alphabet 5 (International ASCII)
            case self::TYPE_GRAPHIC_STRING:
                // All registered G sets, and space
            case self::TYPE_GENERAL_STRING:
                // All registered C and G sets, space and delete
            case self::TYPE_UTF8_STRING:
                // ????
            case self::TYPE_BMP_STRING:
                $current['content'] = $content;
                break;
            case self::TYPE_UTC_TIME:
            case self::TYPE_GENERALIZED_TIME:
                $current['content'] = $this->_decodeTime($content, $tag);
            default:
        }
 
        $start+= $length;
 
        // ie. length is the length of the full TLV encoding - it's not just the length of the value
        return $current + array('length' => $start - $current['start']);
    }

References $current, phpseclib\File\ASN1\$encoded, $i, $start, $tag, $type, phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_decodeTime(), phpseclib\File\ASN1\_string_shift(), phpseclib\File\ASN1\CLASS_APPLICATION, phpseclib\File\ASN1\CLASS_CONTEXT_SPECIFIC, phpseclib\File\ASN1\CLASS_PRIVATE, phpseclib\File\ASN1\TYPE_BIT_STRING, phpseclib\File\ASN1\TYPE_BMP_STRING, phpseclib\File\ASN1\TYPE_BOOLEAN, phpseclib\File\ASN1\TYPE_ENUMERATED, phpseclib\File\ASN1\TYPE_GENERAL_STRING, phpseclib\File\ASN1\TYPE_GENERALIZED_TIME, phpseclib\File\ASN1\TYPE_GRAPHIC_STRING, phpseclib\File\ASN1\TYPE_IA5_STRING, phpseclib\File\ASN1\TYPE_INTEGER, phpseclib\File\ASN1\TYPE_NULL, phpseclib\File\ASN1\TYPE_NUMERIC_STRING, phpseclib\File\ASN1\TYPE_OBJECT_IDENTIFIER, phpseclib\File\ASN1\TYPE_OCTET_STRING, phpseclib\File\ASN1\TYPE_PRINTABLE_STRING, phpseclib\File\ASN1\TYPE_REAL, phpseclib\File\ASN1\TYPE_SEQUENCE, phpseclib\File\ASN1\TYPE_SET, phpseclib\File\ASN1\TYPE_TELETEX_STRING, phpseclib\File\ASN1\TYPE_UTC_TIME, phpseclib\File\ASN1\TYPE_UTF8_STRING, phpseclib\File\ASN1\TYPE_VIDEOTEX_STRING, and phpseclib\File\ASN1\TYPE_VISIBLE_STRING.

Referenced by phpseclib\File\ASN1\_decode_ber(), and phpseclib\File\ASN1\decodeBER().

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_decodeTime()

phpseclib\File\ASN1::_decodeTime	(		$content,
			$tag
	)

BER-decode the time.

Called by _decode_ber() and in the case of implicit tags asn1map().

@access private

Parameters

string	$content
int	$tag

Returns

string

Definition at line 1115 of file ASN1.php.

    {
        /* UTCTime:
           http://tools.ietf.org/html/rfc5280#section-4.1.2.5.1
           http://www.obj-sys.com/asn1tutorial/node15.html
 
           GeneralizedTime:
           http://tools.ietf.org/html/rfc5280#section-4.1.2.5.2
           http://www.obj-sys.com/asn1tutorial/node14.html */
 
        $pattern = $tag == self::TYPE_UTC_TIME ?
            '#(..)(..)(..)(..)(..)(..)(.*)#' :
            '#(....)(..)(..)(..)(..)(..).*([Z+-].*)$#';
 
        preg_match($pattern, $content, $matches);
 
        list(, $year, $month, $day, $hour, $minute, $second, $timezone) = $matches;
 
        if ($tag == self::TYPE_UTC_TIME) {
            $year = $year >= 50 ? "19$year" : "20$year";
        }
 
        if ($timezone == 'Z') {
            $mktime = 'gmmktime';
            $timezone = 0;
        } elseif (preg_match('#([+-])(\d\d)(\d\d)#', $timezone, $matches)) {
            $mktime = 'gmmktime';
            $timezone = 60 * $matches[3] + 3600 * $matches[2];
            if ($matches[1] == '-') {
                $timezone = -$timezone;
            }
        } else {
            $mktime = 'mktime';
            $timezone = 0;
        }
 
        return @$mktime($hour, $minute, $second, $month, $day, $year) + $timezone;
    }

References $tag.

Referenced by phpseclib\File\ASN1\_decode_ber(), and phpseclib\File\ASN1\asn1map().

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_encode_der()

phpseclib\File\ASN1::_encode_der	(		$source,
			$mapping,
			$idx = null,
			$special = array()
	)

ASN.1 Encode (Helper function)

Parameters

string	$source
string	$mapping
int	$idx

Returns

string @access private

Definition at line 798 of file ASN1.php.

    {
        if ($source instanceof Element) {
            return $source->element;
        }
 
        // do not encode (implicitly optional) fields with value set to default
        if (isset($mapping['default']) && $source === $mapping['default']) {
            return '';
        }
 
        if (isset($idx)) {
            if (isset($special[$idx])) {
                $source = call_user_func($special[$idx], $source);
            }
            $this->location[] = $idx;
        }
 
        $tag = $mapping['type'];
 
        switch ($tag) {
            case self::TYPE_SET:    // Children order is not important, thus process in sequence.
            case self::TYPE_SEQUENCE:
                $tag|= 0x20; // set the constructed bit
                $value = '';
 
                // ignore the min and max
                if (isset($mapping['min']) && isset($mapping['max'])) {
                    $child = $mapping['children'];
 
                    foreach ($source as $content) {
                        $temp = $this->_encode_der($content, $child, null, $special);
                        if ($temp === false) {
                            return false;
                        }
                        $value.= $temp;
                    }
                    break;
                }
 
                foreach ($mapping['children'] as $key => $child) {
                    if (!array_key_exists($key, $source)) {
                        if (!isset($child['optional'])) {
                            return false;
                        }
                        continue;
                    }
 
                    $temp = $this->_encode_der($source[$key], $child, $key, $special);
                    if ($temp === false) {
                        return false;
                    }
 
                    // An empty child encoding means it has been optimized out.
                    // Else we should have at least one tag byte.
                    if ($temp === '') {
                        continue;
                    }
 
                    // if isset($child['constant']) is true then isset($child['optional']) should be true as well
                    if (isset($child['constant'])) {
                        /*
                           From X.680-0207.pdf#page=58 (30.6):
 
                           "The tagging construction specifies explicit tagging if any of the following holds:
                            ...
                            c) the "Tag Type" alternative is used and the value of "TagDefault" for the module is IMPLICIT TAGS or
                            AUTOMATIC TAGS, but the type defined by "Type" is an untagged choice type, an untagged open type, or
                            an untagged "DummyReference" (see ITU-T Rec. X.683 | ISO/IEC 8824-4, 8.3)."
                         */
                        if (isset($child['explicit']) || $child['type'] == self::TYPE_CHOICE) {
                            $subtag = chr((self::CLASS_CONTEXT_SPECIFIC << 6) | 0x20 | $child['constant']);
                            $temp = $subtag . $this->_encodeLength(strlen($temp)) . $temp;
                        } else {
                            $subtag = chr((self::CLASS_CONTEXT_SPECIFIC << 6) | (ord($temp[0]) & 0x20) | $child['constant']);
                            $temp = $subtag . substr($temp, 1);
                        }
                    }
                    $value.= $temp;
                }
                break;
            case self::TYPE_CHOICE:
                $temp = false;
 
                foreach ($mapping['children'] as $key => $child) {
                    if (!isset($source[$key])) {
                        continue;
                    }
 
                    $temp = $this->_encode_der($source[$key], $child, $key, $special);
                    if ($temp === false) {
                        return false;
                    }
 
                    // An empty child encoding means it has been optimized out.
                    // Else we should have at least one tag byte.
                    if ($temp === '') {
                        continue;
                    }
 
                    $tag = ord($temp[0]);
 
                    // if isset($child['constant']) is true then isset($child['optional']) should be true as well
                    if (isset($child['constant'])) {
                        if (isset($child['explicit']) || $child['type'] == self::TYPE_CHOICE) {
                            $subtag = chr((self::CLASS_CONTEXT_SPECIFIC << 6) | 0x20 | $child['constant']);
                            $temp = $subtag . $this->_encodeLength(strlen($temp)) . $temp;
                        } else {
                            $subtag = chr((self::CLASS_CONTEXT_SPECIFIC << 6) | (ord($temp[0]) & 0x20) | $child['constant']);
                            $temp = $subtag . substr($temp, 1);
                        }
                    }
                }
 
                if (isset($idx)) {
                    array_pop($this->location);
                }
 
                if ($temp && isset($mapping['cast'])) {
                    $temp[0] = chr(($mapping['class'] << 6) | ($tag & 0x20) | $mapping['cast']);
                }
 
                return $temp;
            case self::TYPE_INTEGER:
            case self::TYPE_ENUMERATED:
                if (!isset($mapping['mapping'])) {
                    if (is_numeric($source)) {
                        $source = new BigInteger($source);
                    }
                    $value = $source->toBytes(true);
                } else {
                    $value = array_search($source, $mapping['mapping']);
                    if ($value === false) {
                        return false;
                    }
                    $value = new BigInteger($value);
                    $value = $value->toBytes(true);
                }
                if (!strlen($value)) {
                    $value = chr(0);
                }
                break;
            case self::TYPE_UTC_TIME:
            case self::TYPE_GENERALIZED_TIME:
                $format = $mapping['type'] == self::TYPE_UTC_TIME ? 'y' : 'Y';
                $format.= 'mdHis';
                $value = @gmdate($format, strtotime($source)) . 'Z';
                break;
            case self::TYPE_BIT_STRING:
                if (isset($mapping['mapping'])) {
                    $bits = array_fill(0, count($mapping['mapping']), 0);
                    $size = 0;
                    for ($i = 0; $i < count($mapping['mapping']); $i++) {
                        if (in_array($mapping['mapping'][$i], $source)) {
                            $bits[$i] = 1;
                            $size = $i;
                        }
                    }
 
                    if (isset($mapping['min']) && $mapping['min'] >= 1 && $size < $mapping['min']) {
                        $size = $mapping['min'] - 1;
                    }
 
                    $offset = 8 - (($size + 1) & 7);
                    $offset = $offset !== 8 ? $offset : 0;
 
                    $value = chr($offset);
 
                    for ($i = $size + 1; $i < count($mapping['mapping']); $i++) {
                        unset($bits[$i]);
                    }
 
                    $bits = implode('', array_pad($bits, $size + $offset + 1, 0));
                    $bytes = explode(' ', rtrim(chunk_split($bits, 8, ' ')));
                    foreach ($bytes as $byte) {
                        $value.= chr(bindec($byte));
                    }
 
                    break;
                }
            case self::TYPE_OCTET_STRING:
                /* The initial octet shall encode, as an unsigned binary integer with bit 1 as the least significant bit,
                   the number of unused bits in the final subsequent octet. The number shall be in the range zero to seven.
 
                   -- http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#page=16 */
                $value = base64_decode($source);
                break;
            case self::TYPE_OBJECT_IDENTIFIER:
                $oid = preg_match('#(?:\d+\.)+#', $source) ? $source : array_search($source, $this->oids);
                if ($oid === false) {
                    user_error('Invalid OID');
                    return false;
                }
                $value = '';
                $parts = explode('.', $oid);
                $value = chr(40 * $parts[0] + $parts[1]);
                for ($i = 2; $i < count($parts); $i++) {
                    $temp = '';
                    if (!$parts[$i]) {
                        $temp = "\0";
                    } else {
                        while ($parts[$i]) {
                            $temp = chr(0x80 | ($parts[$i] & 0x7F)) . $temp;
                            $parts[$i] >>= 7;
                        }
                        $temp[strlen($temp) - 1] = $temp[strlen($temp) - 1] & chr(0x7F);
                    }
                    $value.= $temp;
                }
                break;
            case self::TYPE_ANY:
                $loc = $this->location;
                if (isset($idx)) {
                    array_pop($this->location);
                }
 
                switch (true) {
                    case !isset($source):
                        return $this->_encode_der(null, array('type' => self::TYPE_NULL) + $mapping, null, $special);
                    case is_int($source):
                    case $source instanceof BigInteger:
                        return $this->_encode_der($source, array('type' => self::TYPE_INTEGER) + $mapping, null, $special);
                    case is_float($source):
                        return $this->_encode_der($source, array('type' => self::TYPE_REAL) + $mapping, null, $special);
                    case is_bool($source):
                        return $this->_encode_der($source, array('type' => self::TYPE_BOOLEAN) + $mapping, null, $special);
                    case is_array($source) && count($source) == 1:
                        $typename = implode('', array_keys($source));
                        $outtype = array_search($typename, $this->ANYmap, true);
                        if ($outtype !== false) {
                            return $this->_encode_der($source[$typename], array('type' => $outtype) + $mapping, null, $special);
                        }
                }
 
                $filters = $this->filters;
                foreach ($loc as $part) {
                    if (!isset($filters[$part])) {
                        $filters = false;
                        break;
                    }
                    $filters = $filters[$part];
                }
                if ($filters === false) {
                    user_error('No filters defined for ' . implode('/', $loc));
                    return false;
                }
                return $this->_encode_der($source, $filters + $mapping, null, $special);
            case self::TYPE_NULL:
                $value = '';
                break;
            case self::TYPE_NUMERIC_STRING:
            case self::TYPE_TELETEX_STRING:
            case self::TYPE_PRINTABLE_STRING:
            case self::TYPE_UNIVERSAL_STRING:
            case self::TYPE_UTF8_STRING:
            case self::TYPE_BMP_STRING:
            case self::TYPE_IA5_STRING:
            case self::TYPE_VISIBLE_STRING:
            case self::TYPE_VIDEOTEX_STRING:
            case self::TYPE_GRAPHIC_STRING:
            case self::TYPE_GENERAL_STRING:
                $value = $source;
                break;
            case self::TYPE_BOOLEAN:
                $value = $source ? "\xFF" : "\x00";
                break;
            default:
                user_error('Mapping provides no type definition for ' . implode('/', $this->location));
                return false;
        }
 
        if (isset($idx)) {
            array_pop($this->location);
        }
 
        if (isset($mapping['cast'])) {
            if (isset($mapping['explicit']) || $mapping['type'] == self::TYPE_CHOICE) {
                $value = chr($tag) . $this->_encodeLength(strlen($value)) . $value;
                $tag = ($mapping['class'] << 6) | 0x20 | $mapping['cast'];
            } else {
                $tag = ($mapping['class'] << 6) | (ord($temp[0]) & 0x20) | $mapping['cast'];
            }
        }
 
        return chr($tag) . $this->_encodeLength(strlen($value)) . $value;
    }

References phpseclib\File\ASN1\$filters, phpseclib\File\ASN1\$format, $i, $key, $location, $size, $source, $tag, phpseclib\File\ASN1\_encode_der(), phpseclib\File\ASN1\_encodeLength(), phpseclib\File\ASN1\TYPE_ANY, phpseclib\File\ASN1\TYPE_BIT_STRING, phpseclib\File\ASN1\TYPE_BMP_STRING, phpseclib\File\ASN1\TYPE_BOOLEAN, phpseclib\File\ASN1\TYPE_CHOICE, phpseclib\File\ASN1\TYPE_ENUMERATED, phpseclib\File\ASN1\TYPE_GENERAL_STRING, phpseclib\File\ASN1\TYPE_GENERALIZED_TIME, phpseclib\File\ASN1\TYPE_GRAPHIC_STRING, phpseclib\File\ASN1\TYPE_IA5_STRING, phpseclib\File\ASN1\TYPE_INTEGER, phpseclib\File\ASN1\TYPE_NULL, phpseclib\File\ASN1\TYPE_NUMERIC_STRING, phpseclib\File\ASN1\TYPE_OBJECT_IDENTIFIER, phpseclib\File\ASN1\TYPE_OCTET_STRING, phpseclib\File\ASN1\TYPE_PRINTABLE_STRING, phpseclib\File\ASN1\TYPE_SEQUENCE, phpseclib\File\ASN1\TYPE_SET, phpseclib\File\ASN1\TYPE_TELETEX_STRING, phpseclib\File\ASN1\TYPE_UNIVERSAL_STRING, phpseclib\File\ASN1\TYPE_UTC_TIME, phpseclib\File\ASN1\TYPE_UTF8_STRING, phpseclib\File\ASN1\TYPE_VIDEOTEX_STRING, and phpseclib\File\ASN1\TYPE_VISIBLE_STRING.

Referenced by phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\encodeDER().

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_encodeLength()

phpseclib\File\ASN1::_encodeLength

(

$length

)

DER-encode the length.

DER supports lengths up to (2**8)**127, however, we'll only support lengths up to (2**8)**4. See X.690 paragraph 8.1.3 for more information.

@access private

Parameters

int

$length

Returns

string

Definition at line 1095 of file ASN1.php.

    {
        if ($length <= 0x7F) {
            return chr($length);
        }
 
        $temp = ltrim(pack('N', $length), chr(0));
        return pack('Ca*', 0x80 | strlen($temp), $temp);
    }

Referenced by phpseclib\File\ASN1\_encode_der().

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_string_shift()

phpseclib\File\ASN1::_string_shift	(	&	$string,
			$index = 1
	)

String Shift.

Inspired by array_shift

Parameters

string	$string
int	$index

Returns

string @access private

Definition at line 1203 of file ASN1.php.

    {
        $substr = substr($string, 0, $index);
        $string = substr($string, $index);
        return $substr;
    }

References $index.

Referenced by phpseclib\File\ASN1\_decode_ber().

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asn1map()

phpseclib\File\ASN1::asn1map	(		$decoded,
			$mapping,
			$special = array()
	)

ASN.1 Map.

Provides an ASN.1 semantic mapping ($mapping) from a parsed BER-encoding to a human readable format.

"Special" mappings may be applied on a per tag-name basis via $special.

Parameters

array	$decoded
array	$mapping
array	$special

Returns

array @access public

Definition at line 491 of file ASN1.php.

    {
        if (isset($mapping['explicit']) && is_array($decoded['content'])) {
            $decoded = $decoded['content'][0];
        }
 
        switch (true) {
            case $mapping['type'] == self::TYPE_ANY:
                $intype = $decoded['type'];
                if (isset($decoded['constant']) || !isset($this->ANYmap[$intype]) || ($this->encoded[$decoded['start']] & 0x20)) {
                    return new Element(substr($this->encoded, $decoded['start'], $decoded['length']));
                }
                $inmap = $this->ANYmap[$intype];
                if (is_string($inmap)) {
                    return array($inmap => $this->asn1map($decoded, array('type' => $intype) + $mapping, $special));
                }
                break;
            case $mapping['type'] == self::TYPE_CHOICE:
                foreach ($mapping['children'] as $key => $option) {
                    switch (true) {
                        case isset($option['constant']) && $option['constant'] == $decoded['constant']:
                        case !isset($option['constant']) && $option['type'] == $decoded['type']:
                            $value = $this->asn1map($decoded, $option, $special);
                            break;
                        case !isset($option['constant']) && $option['type'] == self::TYPE_CHOICE:
                            $v = $this->asn1map($decoded, $option, $special);
                            if (isset($v)) {
                                $value = $v;
                            }
                    }
                    if (isset($value)) {
                        if (isset($special[$key])) {
                            $value = call_user_func($special[$key], $value);
                        }
                        return array($key => $value);
                    }
                }
                return null;
            case isset($mapping['implicit']):
            case isset($mapping['explicit']):
            case $decoded['type'] == $mapping['type']:
                break;
            default:
                // if $decoded['type'] and $mapping['type'] are both strings, but different types of strings,
                // let it through
                switch (true) {
                    case $decoded['type'] < 18: // self::TYPE_NUMERIC_STRING == 18
                    case $decoded['type'] > 30: // self::TYPE_BMP_STRING == 30
                    case $mapping['type'] < 18:
                    case $mapping['type'] > 30:
                        return null;
                }
        }
 
        if (isset($mapping['implicit'])) {
            $decoded['type'] = $mapping['type'];
        }
 
        switch ($decoded['type']) {
            case self::TYPE_SEQUENCE:
                $map = array();
 
                // ignore the min and max
                if (isset($mapping['min']) && isset($mapping['max'])) {
                    $child = $mapping['children'];
                    foreach ($decoded['content'] as $content) {
                        if (($map[] = $this->asn1map($content, $child, $special)) === null) {
                            return null;
                        }
                    }
 
                    return $map;
                }
 
                $n = count($decoded['content']);
                $i = 0;
 
                foreach ($mapping['children'] as $key => $child) {
                    $maymatch = $i < $n; // Match only existing input.
                    if ($maymatch) {
                        $temp = $decoded['content'][$i];
 
                        if ($child['type'] != self::TYPE_CHOICE) {
                            // Get the mapping and input class & constant.
                            $childClass = $tempClass = self::CLASS_UNIVERSAL;
                            $constant = null;
                            if (isset($temp['constant'])) {
                                $tempClass = isset($temp['class']) ? $temp['class'] : self::CLASS_CONTEXT_SPECIFIC;
                            }
                            if (isset($child['class'])) {
                                $childClass = $child['class'];
                                $constant = $child['cast'];
                            } elseif (isset($child['constant'])) {
                                $childClass = self::CLASS_CONTEXT_SPECIFIC;
                                $constant = $child['constant'];
                            }
 
                            if (isset($constant) && isset($temp['constant'])) {
                                // Can only match if constants and class match.
                                $maymatch = $constant == $temp['constant'] && $childClass == $tempClass;
                            } else {
                                // Can only match if no constant expected and type matches or is generic.
                                $maymatch = !isset($child['constant']) && array_search($child['type'], array($temp['type'], self::TYPE_ANY, self::TYPE_CHOICE)) !== false;
                            }
                        }
                    }
 
                    if ($maymatch) {
                        // Attempt submapping.
                        $candidate = $this->asn1map($temp, $child, $special);
                        $maymatch = $candidate !== null;
                    }
 
                    if ($maymatch) {
                        // Got the match: use it.
                        if (isset($special[$key])) {
                            $candidate = call_user_func($special[$key], $candidate);
                        }
                        $map[$key] = $candidate;
                        $i++;
                    } elseif (isset($child['default'])) {
                        $map[$key] = $child['default']; // Use default.
                    } elseif (!isset($child['optional'])) {
                        return null; // Syntax error.
                    }
                }
 
                // Fail mapping if all input items have not been consumed.
                return $i < $n ? null: $map;
 
            // the main diff between sets and sequences is the encapsulation of the foreach in another for loop
            case self::TYPE_SET:
                $map = array();
 
                // ignore the min and max
                if (isset($mapping['min']) && isset($mapping['max'])) {
                    $child = $mapping['children'];
                    foreach ($decoded['content'] as $content) {
                        if (($map[] = $this->asn1map($content, $child, $special)) === null) {
                            return null;
                        }
                    }
 
                    return $map;
                }
 
                for ($i = 0; $i < count($decoded['content']); $i++) {
                    $temp = $decoded['content'][$i];
                    $tempClass = self::CLASS_UNIVERSAL;
                    if (isset($temp['constant'])) {
                        $tempClass = isset($temp['class']) ? $temp['class'] : self::CLASS_CONTEXT_SPECIFIC;
                    }
 
                    foreach ($mapping['children'] as $key => $child) {
                        if (isset($map[$key])) {
                            continue;
                        }
                        $maymatch = true;
                        if ($child['type'] != self::TYPE_CHOICE) {
                            $childClass = self::CLASS_UNIVERSAL;
                            $constant = null;
                            if (isset($child['class'])) {
                                $childClass = $child['class'];
                                $constant = $child['cast'];
                            } elseif (isset($child['constant'])) {
                                $childClass = self::CLASS_CONTEXT_SPECIFIC;
                                $constant = $child['constant'];
                            }
 
                            if (isset($constant) && isset($temp['constant'])) {
                                // Can only match if constants and class match.
                                $maymatch = $constant == $temp['constant'] && $childClass == $tempClass;
                            } else {
                                // Can only match if no constant expected and type matches or is generic.
                                $maymatch = !isset($child['constant']) && array_search($child['type'], array($temp['type'], self::TYPE_ANY, self::TYPE_CHOICE)) !== false;
                            }
                        }
 
                        if ($maymatch) {
                            // Attempt submapping.
                            $candidate = $this->asn1map($temp, $child, $special);
                            $maymatch = $candidate !== null;
                        }
 
                        if (!$maymatch) {
                            break;
                        }
 
                        // Got the match: use it.
                        if (isset($special[$key])) {
                            $candidate = call_user_func($special[$key], $candidate);
                        }
                        $map[$key] = $candidate;
                        break;
                    }
                }
 
                foreach ($mapping['children'] as $key => $child) {
                    if (!isset($map[$key])) {
                        if (isset($child['default'])) {
                            $map[$key] = $child['default'];
                        } elseif (!isset($child['optional'])) {
                            return null;
                        }
                    }
                }
                return $map;
            case self::TYPE_OBJECT_IDENTIFIER:
                return isset($this->oids[$decoded['content']]) ? $this->oids[$decoded['content']] : $decoded['content'];
            case self::TYPE_UTC_TIME:
            case self::TYPE_GENERALIZED_TIME:
                if (isset($mapping['implicit'])) {
                    $decoded['content'] = $this->_decodeTime($decoded['content'], $decoded['type']);
                }
                return @date($this->format, $decoded['content']);
            case self::TYPE_BIT_STRING:
                if (isset($mapping['mapping'])) {
                    $offset = ord($decoded['content'][0]);
                    $size = (strlen($decoded['content']) - 1) * 8 - $offset;
                    /*
                       From X.680-0207.pdf#page=46 (21.7):
 
                       "When a "NamedBitList" is used in defining a bitstring type ASN.1 encoding rules are free to add (or remove)
                        arbitrarily any trailing 0 bits to (or from) values that are being encoded or decoded. Application designers should
                        therefore ensure that different semantics are not associated with such values which differ only in the number of trailing
                        0 bits."
                    */
                    $bits = count($mapping['mapping']) == $size ? array() : array_fill(0, count($mapping['mapping']) - $size, false);
                    for ($i = strlen($decoded['content']) - 1; $i > 0; $i--) {
                        $current = ord($decoded['content'][$i]);
                        for ($j = $offset; $j < 8; $j++) {
                            $bits[] = (bool) ($current & (1 << $j));
                        }
                        $offset = 0;
                    }
                    $values = array();
                    $map = array_reverse($mapping['mapping']);
                    foreach ($map as $i => $value) {
                        if ($bits[$i]) {
                            $values[] = $value;
                        }
                    }
                    return $values;
                }
            case self::TYPE_OCTET_STRING:
                return base64_encode($decoded['content']);
            case self::TYPE_NULL:
                return '';
            case self::TYPE_BOOLEAN:
                return $decoded['content'];
            case self::TYPE_NUMERIC_STRING:
            case self::TYPE_PRINTABLE_STRING:
            case self::TYPE_TELETEX_STRING:
            case self::TYPE_VIDEOTEX_STRING:
            case self::TYPE_IA5_STRING:
            case self::TYPE_GRAPHIC_STRING:
            case self::TYPE_VISIBLE_STRING:
            case self::TYPE_GENERAL_STRING:
            case self::TYPE_UNIVERSAL_STRING:
            case self::TYPE_UTF8_STRING:
            case self::TYPE_BMP_STRING:
                return $decoded['content'];
            case self::TYPE_INTEGER:
            case self::TYPE_ENUMERATED:
                $temp = $decoded['content'];
                if (isset($mapping['implicit'])) {
                    $temp = new BigInteger($decoded['content'], -256);
                }
                if (isset($mapping['mapping'])) {
                    $temp = (int) $temp->toString();
                    return isset($mapping['mapping'][$temp]) ?
                        $mapping['mapping'][$temp] :
                        false;
                }
                return $temp;
        }
    }

References $current, $i, $key, $map, $n, $size, $values, phpseclib\File\ASN1\_decodeTime(), phpseclib\File\ASN1\asn1map(), phpseclib\File\ASN1\CLASS_CONTEXT_SPECIFIC, phpseclib\File\ASN1\CLASS_UNIVERSAL, phpseclib\File\ASN1\TYPE_ANY, phpseclib\File\ASN1\TYPE_BIT_STRING, phpseclib\File\ASN1\TYPE_BMP_STRING, phpseclib\File\ASN1\TYPE_BOOLEAN, phpseclib\File\ASN1\TYPE_CHOICE, phpseclib\File\ASN1\TYPE_ENUMERATED, phpseclib\File\ASN1\TYPE_GENERAL_STRING, phpseclib\File\ASN1\TYPE_GENERALIZED_TIME, phpseclib\File\ASN1\TYPE_GRAPHIC_STRING, phpseclib\File\ASN1\TYPE_IA5_STRING, phpseclib\File\ASN1\TYPE_INTEGER, phpseclib\File\ASN1\TYPE_NULL, phpseclib\File\ASN1\TYPE_NUMERIC_STRING, phpseclib\File\ASN1\TYPE_OBJECT_IDENTIFIER, phpseclib\File\ASN1\TYPE_OCTET_STRING, phpseclib\File\ASN1\TYPE_PRINTABLE_STRING, phpseclib\File\ASN1\TYPE_SEQUENCE, phpseclib\File\ASN1\TYPE_SET, phpseclib\File\ASN1\TYPE_TELETEX_STRING, phpseclib\File\ASN1\TYPE_UNIVERSAL_STRING, phpseclib\File\ASN1\TYPE_UTC_TIME, phpseclib\File\ASN1\TYPE_UTF8_STRING, phpseclib\File\ASN1\TYPE_VIDEOTEX_STRING, and phpseclib\File\ASN1\TYPE_VISIBLE_STRING.

Referenced by phpseclib\File\ASN1\asn1map().

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convert()

phpseclib\File\ASN1::convert	(		$in,
			$from = self::TYPE_UTF8_STRING,
			$to = self::TYPE_UTF8_STRING
	)

String type conversion.

This is a lazy conversion, dealing only with character size. No real conversion table is used.

Parameters

string	$in
int	$from
int	$to

Returns

string @access public

Definition at line 1222 of file ASN1.php.

    {
        if (!isset($this->stringTypeSize[$from]) || !isset($this->stringTypeSize[$to])) {
            return false;
        }
        $insize = $this->stringTypeSize[$from];
        $outsize = $this->stringTypeSize[$to];
        $inlength = strlen($in);
        $out = '';
 
        for ($i = 0; $i < $inlength;) {
            if ($inlength - $i < $insize) {
                return false;
            }
 
            // Get an input character as a 32-bit value.
            $c = ord($in[$i++]);
            switch (true) {
                case $insize == 4:
                    $c = ($c << 8) | ord($in[$i++]);
                    $c = ($c << 8) | ord($in[$i++]);
                case $insize == 2:
                    $c = ($c << 8) | ord($in[$i++]);
                case $insize == 1:
                    break;
                case ($c & 0x80) == 0x00:
                    break;
                case ($c & 0x40) == 0x00:
                    return false;
                default:
                    $bit = 6;
                    do {
                        if ($bit > 25 || $i >= $inlength || (ord($in[$i]) & 0xC0) != 0x80) {
                            return false;
                        }
                        $c = ($c << 6) | (ord($in[$i++]) & 0x3F);
                        $bit += 5;
                        $mask = 1 << $bit;
                    } while ($c & $bit);
                    $c &= $mask - 1;
                    break;
            }
 
            // Convert and append the character to output string.
            $v = '';
            switch (true) {
                case $outsize == 4:
                    $v .= chr($c & 0xFF);
                    $c >>= 8;
                    $v .= chr($c & 0xFF);
                    $c >>= 8;
                case $outsize == 2:
                    $v .= chr($c & 0xFF);
                    $c >>= 8;
                case $outsize == 1:
                    $v .= chr($c & 0xFF);
                    $c >>= 8;
                    if ($c) {
                        return false;
                    }
                    break;
                case ($c & 0x80000000) != 0:
                    return false;
                case $c >= 0x04000000:
                    $v .= chr(0x80 | ($c & 0x3F));
                    $c = ($c >> 6) | 0x04000000;
                case $c >= 0x00200000:
                    $v .= chr(0x80 | ($c & 0x3F));
                    $c = ($c >> 6) | 0x00200000;
                case $c >= 0x00010000:
                    $v .= chr(0x80 | ($c & 0x3F));
                    $c = ($c >> 6) | 0x00010000;
                case $c >= 0x00000800:
                    $v .= chr(0x80 | ($c & 0x3F));
                    $c = ($c >> 6) | 0x00000800;
                case $c >= 0x00000080:
                    $v .= chr(0x80 | ($c & 0x3F));
                    $c = ($c >> 6) | 0x000000C0;
                default:
                    $v .= chr($c);
                    break;
            }
            $out .= strrev($v);
        }
        return $out;
    }

References $c, $from, $i, $in, $mask, and $out.

decodeBER()

phpseclib\File\ASN1::decodeBER

(

$encoded

)

Parse BER-encoding.

Serves a similar purpose to openssl's asn1parse

Parameters

string

$encoded

Returns

array @access public

Definition at line 207 of file ASN1.php.

    {
        if ($encoded instanceof Element) {
            $encoded = $encoded->element;
        }
 
        $this->encoded = $encoded;
        // encapsulate in an array for BC with the old decodeBER
        return array($this->_decode_ber($encoded));
    }

References phpseclib\File\ASN1\$encoded, and phpseclib\File\ASN1\_decode_ber().

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encodeDER()

phpseclib\File\ASN1::encodeDER	(		$source,
			$mapping,
			$special = array()
	)

ASN.1 Encode.

DER-encodes an ASN.1 semantic mapping ($mapping). Some libraries would probably call this function an ASN.1 compiler.

"Special" mappings can be applied via $special.

Parameters

string	$source
string	$mapping
int	$idx

Returns

string @access public

Definition at line 783 of file ASN1.php.

    {
        $this->location = array();
        return $this->_encode_der($source, $mapping, null, $special);
    }

References $source, and phpseclib\File\ASN1\_encode_der().

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loadFilters()

phpseclib\File\ASN1::loadFilters

(

$filters

)

Load filters.

See \phpseclib\File\X509, etc, for an example.

@access public

Parameters

array

$filters

Definition at line 1188 of file ASN1.php.

    {
        $this->filters = $filters;
    }

References phpseclib\File\ASN1\$filters.

loadOIDs()

phpseclib\File\ASN1::loadOIDs

(

$oids

)

Load OIDs.

Load the relevant OIDs for a particular ASN.1 semantic mapping.

@access public

Parameters

array

$oids

Definition at line 1175 of file ASN1.php.

    {
        $this->oids = $oids;
    }

References phpseclib\File\ASN1\$oids.

setTimeFormat()

phpseclib\File\ASN1::setTimeFormat

(

$format

)

Set the time format.

Sets the time / date format for asn1map().

@access public

Parameters

string

$format

Definition at line 1162 of file ASN1.php.

    {
        $this->format = $format;
    }

References phpseclib\File\ASN1\$format.

Field Documentation

$ANYmap

phpseclib\File\ASN1::$ANYmap

Initial value:

= array(
        self::TYPE_BOOLEAN              => true,
        self::TYPE_INTEGER              => true,
        self::TYPE_BIT_STRING           => 'bitString',
        self::TYPE_OCTET_STRING         => 'octetString',
        self::TYPE_NULL                 => 'null',
        self::TYPE_OBJECT_IDENTIFIER    => 'objectIdentifier',
        self::TYPE_REAL                 => true,
        self::TYPE_ENUMERATED           => 'enumerated',
        self::TYPE_UTF8_STRING          => 'utf8String',
        self::TYPE_NUMERIC_STRING       => 'numericString',
        self::TYPE_PRINTABLE_STRING     => 'printableString',
        self::TYPE_TELETEX_STRING       => 'teletexString',
        self::TYPE_VIDEOTEX_STRING      => 'videotexString',
        self::TYPE_IA5_STRING           => 'ia5String',
        self::TYPE_UTC_TIME             => 'utcTime',
        self::TYPE_GENERALIZED_TIME     => 'generalTime',
        self::TYPE_GRAPHIC_STRING       => 'graphicString',
        self::TYPE_VISIBLE_STRING       => 'visibleString',
        self::TYPE_GENERAL_STRING       => 'generalString',
        self::TYPE_UNIVERSAL_STRING     => 'universalString',
        
        self::TYPE_BMP_STRING           => 'bmpString'
    )

Definition at line 154 of file ASN1.php.

$encoded

phpseclib\File\ASN1::$encoded

Definition at line 131 of file ASN1.php.

Referenced by phpseclib\File\ASN1\Element\__construct(), phpseclib\File\ASN1\_decode_ber(), and phpseclib\File\ASN1\decodeBER().

$filters

phpseclib\File\ASN1::$filters

Definition at line 142 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\loadFilters().

$format

phpseclib\File\ASN1::$format = 'D, d M Y H:i:s O'

Definition at line 120 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\setTimeFormat().

$oids

phpseclib\File\ASN1::$oids = array()

Definition at line 111 of file ASN1.php.

Referenced by phpseclib\File\ASN1\loadOIDs().

$stringTypeSize

phpseclib\File\ASN1::$stringTypeSize

Initial value:

= array(
        self::TYPE_UTF8_STRING      => 0,
        self::TYPE_BMP_STRING       => 2,
        self::TYPE_UNIVERSAL_STRING => 4,
        self::TYPE_PRINTABLE_STRING => 1,
        self::TYPE_TELETEX_STRING   => 1,
        self::TYPE_IA5_STRING       => 1,
        self::TYPE_VISIBLE_STRING   => 1,
    )

Definition at line 188 of file ASN1.php.

CLASS_APPLICATION

const phpseclib\File\ASN1::CLASS_APPLICATION = 1

Definition at line 45 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), and phpseclib\File\ASN1\_decode_ber().

CLASS_CONTEXT_SPECIFIC

const phpseclib\File\ASN1::CLASS_CONTEXT_SPECIFIC = 2

Definition at line 46 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_decode_ber(), phpseclib\File\X509\_mapOutExtensions(), and phpseclib\File\ASN1\asn1map().

CLASS_PRIVATE

const phpseclib\File\ASN1::CLASS_PRIVATE = 3

Definition at line 47 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_decode_ber().

CLASS_UNIVERSAL

const phpseclib\File\ASN1::CLASS_UNIVERSAL = 0

#+ Tag Classes

@access private http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#page=12

Definition at line 44 of file ASN1.php.

Referenced by phpseclib\File\ASN1\asn1map().

TYPE_ANY

const phpseclib\File\ASN1::TYPE_ANY = -2

Definition at line 101 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_BIT_STRING

const phpseclib\File\ASN1::TYPE_BIT_STRING = 3

Definition at line 58 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), phpseclib\File\ASN1\asn1map(), and phpseclib\File\X509\computeKeyIdentifier().

TYPE_BMP_STRING

const phpseclib\File\ASN1::TYPE_BMP_STRING = 30

Definition at line 90 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_BOOLEAN

const phpseclib\File\ASN1::TYPE_BOOLEAN = 1

#-

#+ Tag Classes

@access private http://www.obj-sys.com/asn1tutorial/node124.html

Definition at line 56 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_CHOICE

const phpseclib\File\ASN1::TYPE_CHOICE = -1

#-

#+ Tag Aliases

These tags are kinda place holders for other tags.

@access private

Definition at line 100 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_ENUMERATED

const phpseclib\File\ASN1::TYPE_ENUMERATED = 10

Definition at line 65 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_GENERAL_STRING

const phpseclib\File\ASN1::TYPE_GENERAL_STRING = 27

Definition at line 87 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_GENERALIZED_TIME

const phpseclib\File\ASN1::TYPE_GENERALIZED_TIME = 24

Definition at line 84 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), phpseclib\File\ASN1\asn1map(), and phpseclib\File\X509\setEndDate().

TYPE_GRAPHIC_STRING

const phpseclib\File\ASN1::TYPE_GRAPHIC_STRING = 25

Definition at line 85 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_IA5_STRING

const phpseclib\File\ASN1::TYPE_IA5_STRING = 22

Definition at line 82 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), phpseclib\File\ASN1\asn1map(), and phpseclib\File\X509\saveX509().

TYPE_INTEGER

const phpseclib\File\ASN1::TYPE_INTEGER = 2

Definition at line 57 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_NULL

const phpseclib\File\ASN1::TYPE_NULL = 5

Definition at line 60 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), phpseclib\File\ASN1\asn1map(), and phpseclib\File\X509\saveCRL().

TYPE_NUMERIC_STRING

const phpseclib\File\ASN1::TYPE_NUMERIC_STRING = 18

#-

#+ More Tag Classes

@access private http://www.obj-sys.com/asn1tutorial/node10.html

Definition at line 78 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_OBJECT_IDENTIFIER

const phpseclib\File\ASN1::TYPE_OBJECT_IDENTIFIER = 6

Definition at line 61 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_OCTET_STRING

const phpseclib\File\ASN1::TYPE_OCTET_STRING = 4

Definition at line 59 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_PRINTABLE_STRING

const phpseclib\File\ASN1::TYPE_PRINTABLE_STRING = 19

Definition at line 79 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_REAL

const phpseclib\File\ASN1::TYPE_REAL = 9

Definition at line 64 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_decode_ber().

TYPE_SEQUENCE

const phpseclib\File\ASN1::TYPE_SEQUENCE = 16

Definition at line 69 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_SET

const phpseclib\File\ASN1::TYPE_SET = 17

Definition at line 70 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_TELETEX_STRING

const phpseclib\File\ASN1::TYPE_TELETEX_STRING = 20

Definition at line 80 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_UNIVERSAL_STRING

const phpseclib\File\ASN1::TYPE_UNIVERSAL_STRING = 28

Definition at line 88 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_UTC_TIME

const phpseclib\File\ASN1::TYPE_UTC_TIME = 23

Definition at line 83 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_UTF8_STRING

const phpseclib\File\ASN1::TYPE_UTF8_STRING = 12

Definition at line 67 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), phpseclib\File\ASN1\asn1map(), phpseclib\File\X509\getDN(), phpseclib\File\X509\saveCRL(), phpseclib\File\X509\saveCSR(), and phpseclib\File\X509\saveX509().

TYPE_VIDEOTEX_STRING

const phpseclib\File\ASN1::TYPE_VIDEOTEX_STRING = 21

Definition at line 81 of file ASN1.php.

Referenced by phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

TYPE_VISIBLE_STRING

const phpseclib\File\ASN1::TYPE_VISIBLE_STRING = 26

Definition at line 86 of file ASN1.php.

Referenced by phpseclib\File\X509\__construct(), phpseclib\File\ASN1\_decode_ber(), phpseclib\File\ASN1\_encode_der(), and phpseclib\File\ASN1\asn1map().

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The documentation for this class was generated from the following file:

• libs/composer/vendor/phpseclib/phpseclib/phpseclib/File/ASN1.php