Asn ActiveX Reference Documentation

Asn

Current Version: 9.5.0.75

For creating, loading, parsing, converting, and saving ASN.1

Object Creation

(Visual Basic 6.0)
Dim obj As New ChilkatAsn

(ASP)
set obj = Server.CreateObject("Chilkat_9_5_0.Asn")

(VBScript)
set obj = CreateObject("Chilkat_9_5_0.Asn")

(Delphi)
obj := TChilkatAsn.Create(Self);

(FoxPro)
loObject = CreateObject('Chilkat_9_5_0.Asn')

(PowerBuilder)
lole_object = create oleobject
li_rc = lole_object.ConnectToNewObject("Chilkat_9_5_0.Asn")

(SQL Server)
EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Asn', @obj OUT

(Javascript)
var obj = new ActiveXObject("Chilkat_9_5_0.Asn");

Properties

BoolValue
BoolValue As Long
Introduced in version 9.5.0.49

The ASN.1 item's boolean value if it is a boolean item.

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Constructed
Constructed As Long (read-only)
Introduced in version 9.5.0.49

1 if this ASN.1 item is a constructed item. Sequence and Set items are constructed and can contain sub-items. All other tags (boolean, integer, octets, utf8String, etc.) are primitive (non-constructed).

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ContentStr
ContentStr As String
Introduced in version 9.5.0.49

The ASN.1 item's content if it is an ASN.1 string type (such as Utf8String, BmpString, PrintableString, VisibleString, T61String, IA5String, NumericString, or UniversalString).

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DebugLogFilePath
DebugLogFilePath As String

If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.

This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

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IntValue
IntValue As Long
Introduced in version 9.5.0.49

The ASN.1 item's integer value if it is a small integer item.

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LastBinaryResult
LastBinaryResult As Variant (read-only)
Introduced in version 9.5.0.52

The binary data returned by the last (binary data returning) method called. Only available if Chilkat.Global.KeepBinaryResult is set to 1. This provides a means for obtaining large varbinary results in the SQL Server environment (where limitations exist in getting large amounts of data returned by method calls, but where temp tables can be used for binary properties).

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LastErrorHtml
LastErrorHtml As String (read-only)

Provides information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastErrorText
LastErrorText As String (read-only)

Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastErrorXml
LastErrorXml As String (read-only)

Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastMethodSuccess
LastMethodSuccess As Long
Introduced in version 9.5.0.52

Indicate whether the last method call succeeded or failed. A value of 1 indicates success, a value of 0 indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = 1 and failure = 0.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to 1. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

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LastStringResult
LastStringResult As String (read-only)
Introduced in version 9.5.0.52

The string return value of the last (string returning) method called. Only available if Chilkat.Global.KeepStringResult is set to 1. This provides a means for obtaining large string results in the SQL Server environment (where limitations exist in getting long strings returned by method calls, but where temp tables can be used for string properties).

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LastStringResultLen
LastStringResultLen As Long (read-only)
Introduced in version 9.5.0.53

The length, in characters, of the string contained in the LastStringResult property.

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NumSubItems
NumSubItems As Long (read-only)
Introduced in version 9.5.0.49

The number of sub-items contained within this ASN.1 item. Only constructed items, such as Sequence and Set will contain sub-iitems. Primitive items such as OIDs, octet strings, integers, etc. will never contain sub-items.

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Tag
Tag As String (read-only)
Introduced in version 9.5.0.49

The ASN.1 item's tag as a descriptive string. Possible values are:

boolean
integer
bitString
octets
null
oid
utf8String
relativeOid
sequence
set
numericString
printableString
t61String
ia5String
utcTime
bmpString

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TagValue
TagValue As Long (read-only)
Introduced in version 9.5.0.49

The ASN.1 item's tag as a integer value. The integer values for possible tags are as follows:

boolean (1)
integer (2)
bitString (3)
octets (4)
null (5)
oid (6)
utf8String (12)
relativeOid (13)
sequence (16)
set (17)
numericString (18)
printableString (19)
t61String (20)
ia5String (22)
utcTime (23)
bmpString (30)

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VerboseLogging
VerboseLogging As Long

If set to 1, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is 0. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
Version As String (read-only)

Version of the component/library, such as "9.5.0.63"

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Methods

AppendBigInt
AppendBigInt(encodedBytes As String, encoding As String) As Long
Introduced in version 9.5.0.49

Appends an ASN.1 integer, but one that is a big (huge) integer that is too large to be represented by an integer variable. The bytes composing the integer are passed in encoded string format (such as base64, hex, etc.). The byte order must be big-endian. The encoding may be any of the following encodings: "Base64", "Hex", "Base58", "modBase64", "Base32", "UU", "QP" (for quoted-printable), "URL" (for url-encoding), "Q", "B", "url_oath", "url_rfc1738", "url_rfc2396", and "url_rfc3986". The encoding name is case insensitive (for example, both "Base64" and "base64" are treated the same).

Returns 1 for success, 0 for failure.

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AppendBits
AppendBits(encodedBytes As String, encoding As String) As Long
Introduced in version 9.5.0.49

Appends an ASN.1 bit string to the caller's sub-items. The bytes containing the bits are passed in encoded string format (such as base64, hex, etc.). The byte order must be big-endian (MSB first). The encoding may be any of the following encodings: "Base64", "Hex", "Base58", "modBase64", "Base32", "UU", "QP" (for quoted-printable), "URL" (for url-encoding), "Q", "B", "url_oath", "url_rfc1738", "url_rfc2396", and "url_rfc3986". The encoding name is case insensitive (for example, both "Base64" and "base64" are treated the same).

Returns 1 for success, 0 for failure.

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AppendBool
AppendBool(ByVal value As Long) As Long
Introduced in version 9.5.0.49

Appends an ASN.1 boolean item to the caller's sub-items. Items may only be appended to constructed data types such as Sequence and Set.

Returns 1 for success, 0 for failure.

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AppendContextConstructed
AppendContextConstructed(ByVal tag As Long) As Long
Introduced in version 9.5.0.50

Appends an ASN.1 context-specific constructed item to the caller's sub-items.

Returns 1 for success, 0 for failure.

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AppendContextPrimitive
AppendContextPrimitive(ByVal tag As Long, encodedBytes As String, encoding As String) As Long
Introduced in version 9.5.0.50

Appends an ASN.1 context-specific primitive item to the caller's sub-items. The bytes are passed in encoded string format (such as base64, hex, etc.). The encoding may be any of the following encodings: "Base64", "Hex", "Base58", "modBase64", "Base32", "UU", "QP" (for quoted-printable), "URL" (for url-encoding), "Q", "B", "url_oath", "url_rfc1738", "url_rfc2396", and "url_rfc3986". The encoding name is case insensitive (for example, both "Base64" and "base64" are treated the same).

Returns 1 for success, 0 for failure.

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AppendInt
AppendInt(ByVal value As Long) As Long
Introduced in version 9.5.0.49

Appends an ASN.1 integer item to the caller's sub-items. Items may only be appended to constructed data types such as Sequence and Set.

Returns 1 for success, 0 for failure.

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AppendNull
AppendNull() As Long
Introduced in version 9.5.0.49

Appends an ASN.1 null item to the caller's sub-items. Items may only be appended to constructed data types such as Sequence and Set.

Returns 1 for success, 0 for failure.

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AppendOctets
AppendOctets(encodedBytes As String, encoding As String) As Long
Introduced in version 9.5.0.49

Appends an ASN.1 octet string to the caller's sub-items. The bytes are passed in encoded string format (such as base64, hex, etc.). The encoding may be any of the following encodings: "Base64", "Hex", "Base58", "modBase64", "Base32", "UU", "QP" (for quoted-printable), "URL" (for url-encoding), "Q", "B", "url_oath", "url_rfc1738", "url_rfc2396", and "url_rfc3986". The encoding name is case insensitive (for example, both "Base64" and "base64" are treated the same).

Returns 1 for success, 0 for failure.

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AppendOid
AppendOid(oid As String) As Long
Introduced in version 9.5.0.49

Appends an ASN.1 OID (object identifier) to the caller's sub-items. The OID is passed in string form, such as "1.2.840.113549.1.9.1".

Returns 1 for success, 0 for failure.

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AppendSequence
AppendSequence() As Long
Introduced in version 9.5.0.49

Appends an ASN.1 sequence item to the caller's sub-items.

Returns 1 for success, 0 for failure.

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AppendSequence2
AppendSequence2() As Long
Introduced in version 9.5.0.50

Appends an ASN.1 sequence item to the caller's sub-items, and updates the internal reference to point to the newly appended sequence item.

Returns 1 for success, 0 for failure.

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AppendSequenceR
AppendSequenceR() As ChilkatAsn
Introduced in version 9.5.0.50

Appends an ASN.1 sequence item to the caller's sub-items, and returns the newly appended sequence item.

Returns Nothing on failure

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AppendSet
AppendSet() As Long
Introduced in version 9.5.0.49

Appends an ASN.1 set item to the caller's sub-items.

Returns 1 for success, 0 for failure.

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AppendSet2
AppendSet2() As Long
Introduced in version 9.5.0.50

Appends an ASN.1 set item to the caller's sub-items, and updates the internal reference to point to the newly appended set item.

Returns 1 for success, 0 for failure.

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AppendSetR
AppendSetR() As ChilkatAsn
Introduced in version 9.5.0.50

Appends an ASN.1 set item to the caller's sub-items, and returns the newly appended set item.

Returns Nothing on failure

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AppendString
AppendString(strType As String, value As String) As Long
Introduced in version 9.5.0.49

Appends a string item to the caller's sub-items. The strType specifies the type of string to be added. It may be "utf8", "ia5", "t61", "printable", "visible", "numeric", "universal", or "bmp". The value must conform to the ASN.1 restrictions imposed for a given string type. The "utf8", "bmp", and "universal" types have no restrictions on what characters are allowed. In general, unless a specific type of string is required, choose the "utf8" type.

Returns 1 for success, 0 for failure.

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AppendTime
AppendTime(timeFormat As String, dateTimeStr As String) As Long
Introduced in version 9.5.0.49

Appends a UTCTime item to the caller's sub-items. The timeFormat specifies the format of the dateTimeStr. It should be set to "utc". (In the future, this method will be expanded to append GeneralizedTime items by using "generalized" for timeFormat.) To append the current date/time, set dateTimeStr equal to the empty string or the keyword "now". Otherwise, the dateTimeStr should be in the UTC time format "YYMMDDhhmm[ss]Z" or "YYMMDDhhmm[ss](+|-)hhmm".

Returns 1 for success, 0 for failure.

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AsnToXml
AsnToXml() As String
Introduced in version 9.5.0.49

Converts ASN.1 to XML and returns the XML string.

Returns Nothing on failure

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DeleteSubItem
DeleteSubItem(ByVal index As Long) As Long
Introduced in version 9.5.0.49

Discards the Nth sub-item. (The 1st sub-item is at index 0.)

Returns 1 for success, 0 for failure.

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GetBinaryDer
GetBinaryDer() As Variant
Introduced in version 9.5.0.49

Returns the ASN.1 in binary DER form.

Returns a zero-length byte array (as a Variant) on failure.
An empty array will have a UBound of -1 meaning 0 elements.

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GetEncodedContent
GetEncodedContent(encoding As String) As String
Introduced in version 9.5.0.49

Returns the content of the ASN.1 item in encoded string form. The encoding may be any of the following encodings: "Base64", "Hex", "Base58", "modBase64", "Base32", "UU", "QP" (for quoted-printable), "URL" (for url-encoding), "Q", "B", "url_oath", "url_rfc1738", "url_rfc2396", and "url_rfc3986". The encoding name is case insensitive (for example, both "Base64" and "base64" are treated the same).

Returns Nothing on failure

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GetEncodedDer
GetEncodedDer(encoding As String) As String
Introduced in version 9.5.0.49

Returns the binary DER in encoded string form. The encoding indicates the encoding and can be "base64", "hex", "uu", "quoted-printable", "base32", or "modbase64".

Returns Nothing on failure

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GetLastSubItem
GetLastSubItem() As ChilkatAsn
Introduced in version 9.5.0.49

Returns the last ASN.1 sub-item. This method can be called immediately after any Append* method to access the appended item.

Returns Nothing on failure

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GetSubItem
GetSubItem(ByVal index As Long) As ChilkatAsn
Introduced in version 9.5.0.49

Returns the Nth ASN.1 sub-item. The 1st sub-item is at index 0.

Returns Nothing on failure

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LoadAsnXml
LoadAsnXml(xmlStr As String) As Long
Introduced in version 9.5.0.49

Loads ASN.1 from the XML representation (such as that created by the AsnToXml method).

Returns 1 for success, 0 for failure.

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LoadBinary
LoadBinary(derBytes As Variant) As Long
Introduced in version 9.5.0.49

Loads ASN.1 from binary DER.

Returns 1 for success, 0 for failure.

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LoadBinaryFile
LoadBinaryFile(path As String) As Long
Introduced in version 9.5.0.49

Loads ASN.1 from a binary DER file.

Returns 1 for success, 0 for failure.

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LoadEncoded
LoadEncoded(asnContent As String, encoding As String) As Long
Introduced in version 9.5.0.49

Loads ASN.1 from an encoded string. The encoding can be "base64", "hex", "uu", "quoted-printable", "base32", or "modbase64".

Returns 1 for success, 0 for failure.

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SetEncodedContent
SetEncodedContent(encodedBytes As String, encoding As String) As Long
Introduced in version 9.5.0.49

Sets the content of this primitive ASN.1 item. The encoding may be any of the following encodings: "Base64", "Hex", "Base58", "modBase64", "Base32", "UU", "QP" (for quoted-printable), "URL" (for url-encoding), "Q", "B", "url_oath", "url_rfc1738", "url_rfc2396", and "url_rfc3986". The encoding name is case insensitive (for example, both "Base64" and "base64" are treated the same).

Returns 1 for success, 0 for failure.

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WriteBinaryDer
WriteBinaryDer(path As String) As Long
Introduced in version 9.5.0.49

Writes the ASN.1 in binary DER form to a file.

Returns 1 for success, 0 for failure.

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