#oilleelssq-wq/MoonBit-PKI

A pure-MoonBit ASN.1 DER codec and X.509 certificate toolkit.

#Reading DER

DerReader walks tag-length-value elements. read_single decodes exactly one element and rejects trailing bytes:

///|
test "read a single element" {
  let value = try! @asn1.DerReader::from_bytes(b"\x02\x01\x2a").read_single()
  inspect(value.tag().number, content="2")
  inspect(value.content().length(), content="1")
}

#Decoding primitives

///|
test "decode an integer" {
  let content = try! @asn1.DerReader::from_bytes(b"\x02\x01\x2a").read_expected(
    @asn1.TAG_INTEGER,
  )
  inspect(try! @asn1.decode_integer(content).to_string(), content="42")
}

#Object identifiers

///|
test "decode an object identifier" {
  let content = try! @asn1.DerReader::from_bytes(
    b"\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x01",
  ).read_expected(@asn1.TAG_OBJECT_IDENTIFIER)
  inspect(
    try! @asn1.decode_object_identifier(content).to_string(),
    content="1.2.840.113549.1.1.1",
  )
}

#Encoding

Every encoder returns a complete tag-length-value element, and integers are written in the minimal two's complement form that DER requires:

///|
test "encode an integer" {
  inspect(@hex.encode(try! @asn1.encode_int(128)), content="02020080")
  inspect(@hex.encode(try! @asn1.encode_int(-129)), content="0202ff7f")
}

DerWriter assembles nested structures from encoded elements:

///|
test "build a sequence" {
  let writer = @asn1.DerWriter::new()
  writer.add(try! @asn1.encode_int(1)[:])
  writer.add(try! @asn1.encode_boolean(true)[:])
  inspect(@hex.encode(try! writer.to_sequence()), content="30060201010101ff")
}

A decoded value can be encoded again, and the result is canonical:

///|
test "decode and re-encode" {
  let bytes : Bytes = b"\x30\x08\x02\x01\x2a\x30\x03\x01\x01\xff"
  let value = try! @asn1.DerReader::from_bytes(bytes).read_single()
  inspect(value.child(1).child(0).as_boolean(), content="true")
  inspect(
    @hex.encode(try! value.encode()) == @hex.encode(bytes),
    content="true",
  )
}

#Times

UTCTime and GeneralizedTime decode into Asn1Time. Encoding always uses the UTC designator that DER requires:

///|
test "encode a time" {
  let time = @asn1.Asn1Time::new(2024, 5, 6, 7, 8, 9)
  inspect(time.to_string(), content="2024-05-06T07:08:09Z")
  inspect(
    @hex.encode(try! @asn1.encode_utc_time(time)),
    content="170d3234303530363037303830395a",
  )
}

DerError

source

pub(all) suberror DerError {
  UnexpectedEof
  InvalidTag(Int)
  IndefiniteLength
  Truncated(Int)
  LengthTooLong(Int)
  NonMinimalLength(Int)
  ExpectedTag(String, String)
  InvalidValue(String)
  TrailingData(Int)
} derive(@moonbitlang/core/debug.Debug
Debug)

Errors raised while decoding ASN.1 DER/BER input.

The decoder only accepts the canonical forms allowed by the Distinguished Encoding Rules (X.690): definite, minimal lengths and minimal high-tag-number and subidentifier encodings. Anything else is reported through one of these variants.

DerError::to_repr

source

fn DerError::to_repr(DerError) -> @moonbitlang/core/debug.Repr
Repr

DerError::to_string

source

fn DerError::to_string(self : DerError) -> String

Renders the error as a human readable message.

Asn1Time

source

pub struct Asn1Time {
  year : Int
  month : Int
  day : Int
  hour : Int
  minute : Int
  second : Int
  utc_offset_minutes : Int
}

A calendar date and time as carried by UTCTime and GeneralizedTime.

utc_offset_minutes is the offset from UTC. DER requires the UTC designator (Z), so every encoding produced by this package uses an offset of 0; the decoder still accepts the numeric offsets that BER permits.

Asn1Time::is_valid

source

fn Asn1Time::is_valid(self : Asn1Time) -> Bool

Whether every field is inside its valid range.

Asn1Time::new

source

fn Asn1Time::new(year : Int, month : Int, day : Int, hour : Int, minute : Int, second : Int, utc_offset_minutes? : Int) -> Asn1Time

Creates a time value. Use Asn1Time::validate to check the field ranges.

Asn1Time::to_string

source

fn Asn1Time::to_string(self : Asn1Time) -> String

Renders the value as 2024-05-06T07:08:09Z, or with a numeric offset when one is present.

Der

source

pub(all) enum Der {
  Primitive(Tag, BytesView)
  Constructed(Tag, Array[Der])
}

A decoded ASN.1 value.

Der::as_bit_string

source

fn Der::as_bit_string(self : Der) -> (Int, Bytes) raise DerError

Decodes this value as a BIT STRING.

Der::as_boolean

source

fn Der::as_boolean(self : Der) -> Bool raise DerError

Decodes this value as a BOOLEAN.

Der::as_explicit

source

fn Der::as_explicit(self : Der, number : Int) -> Der raise DerError

Returns the single child of an explicitly tagged value (X.690, 8.14.3).

Der::as_integer

source

fn Der::as_integer(self : Der) -> @moonbitlang/core/bigint.BigInt
BigInt raise DerError

Decodes this value as an INTEGER.

Der::as_null

source

fn Der::as_null(self : Der) -> Unit raise DerError

Checks that this value is a NULL.

Der::as_object_identifier

source

fn Der::as_object_identifier(self : Der) -> ObjectIdentifier raise DerError

Decodes this value as an OBJECT IDENTIFIER.

Der::as_octet_string

source

fn Der::as_octet_string(self : Der) -> Bytes raise DerError

Copies this value's OCTET STRING content into a fresh buffer.

Der::as_octet_string_view

source

fn Der::as_octet_string_view(self : Der) -> BytesView raise DerError

Returns a view of this value's OCTET STRING content.

Der::as_sequence

source

fn Der::as_sequence(self : Der) -> Array[Der] raise DerError

Returns the children of this value, accepting SEQUENCE and SET.

Der::as_string

source

fn Der::as_string(self : Der) -> String raise DerError

Decodes this value as a string, dispatching on the universal tag number.

TeletexString and T61String are not decoded; their content is usually Latin-1, so callers should read it as bytes and convert explicitly.

Der::as_time

source

fn Der::as_time(self : Der) -> Asn1Time raise DerError

Decodes this value as a time: UTCTime or GeneralizedTime.

Der::as_utf8_string

source

fn Der::as_utf8_string(self : Der) -> String raise DerError

Decodes this value as a UTF8String.

Der::child

source

fn Der::child(self : Der, index : Int) -> Der raise DerError

Returns the index-th child of a constructed value.

Der::children

source

fn Der::children(self : Der) -> Array[Der] raise DerError

Returns the children of a constructed value.

Der::content

source

fn Der::content(self : Der) -> BytesView raise DerError

Returns the raw content octets of a primitive value.

Der::encode

source

fn Der::encode(self : Der) -> Bytes raise DerError

Re-encodes a decoded value in DER.

Children of a SET are reordered by their encoding, so the result is canonical even if the input was not.

Der::is_constructed

source

fn Der::is_constructed(self : Der) -> Bool

Whether this value is constructed.

Der::tag

source

fn Der::tag(self : Der) -> Tag

The tag of this value.

Der::to_string

source

fn Der::to_string(self : Der) -> String

Renders the value as an indented tree, handy for debugging and for the command line tools built on top of this package.

DerReader

source

pub struct DerReader {
  input : BytesView
  pos : Int
}

A cursor that decodes tag-length-value elements from a BytesView.

The reader never copies: content views point into the original buffer.

DerReader::from_bytes

source

fn DerReader::from_bytes(input : Bytes) -> DerReader

Creates a reader over a byte buffer.

DerReader::is_empty

source

fn DerReader::is_empty(self : DerReader) -> Bool

Whether the cursor has reached the end of the input.

DerReader::new

source

fn DerReader::new(input : BytesView) -> DerReader

Creates a reader over input.

DerReader::offset

source

fn DerReader::offset(self : DerReader) -> Int

Absolute offset of the cursor inside the underlying byte buffer.

DerReader::peek_tag

source

fn DerReader::peek_tag(self : DerReader) -> Tag raise DerError

Returns the tag of the next element without consuming it.

DerReader::read_all

source

fn DerReader::read_all(self : DerReader) -> Array[Der] raise DerError

Decodes every remaining element in the input.

DerReader::read_element

source

fn DerReader::read_element(self : DerReader) -> Der raise DerError

Decodes one element, recursing into constructed values.

DerReader::read_expected

source

fn DerReader::read_expected(self : DerReader, number : Int) -> BytesView raise DerError

Reads one element, asserting that it is a primitive universal value with the given tag number, and returns its content octets.

DerReader::read_single

source

fn DerReader::read_single(self : DerReader) -> Der raise DerError

Decodes exactly one element, raising TrailingData if anything follows it.

DerReader::read_tlv

source

fn DerReader::read_tlv(self : DerReader) -> (Tag, BytesView) raise DerError

Reads one element and returns its tag together with a view of its content octets. The cursor advances past the element.

DerReader::remaining

source

fn DerReader::remaining(self : DerReader) -> Int

Number of bytes left to read.

DerWriter

source

pub struct DerWriter {
  items : Array[Bytes]
}

Builds a constructed DER value from already-encoded elements.

This is the ergonomic way to assemble nested structures such as sequences, sets and explicitly tagged fields.

DerWriter::add

source

fn DerWriter::add(self : DerWriter, element : BytesView) -> Unit

Appends one complete tag-length-value element.

DerWriter::is_empty

source

fn DerWriter::is_empty(self : DerWriter) -> Bool

Whether the writer is empty.

DerWriter::length

source

fn DerWriter::length(self : DerWriter) -> Int

Number of elements added so far.

DerWriter::new

source

fn DerWriter::new() -> DerWriter

Creates an empty writer.

DerWriter::to_content

source

fn DerWriter::to_content(self : DerWriter) -> Bytes

Concatenates everything added so far, without adding a wrapper.

DerWriter::to_explicit

source

fn DerWriter::to_explicit(self : DerWriter, number : Int) -> Bytes raise DerError

Wraps everything added so far in an explicitly tagged constructed value (X.690, 8.14.3).

DerWriter::to_sequence

source

fn DerWriter::to_sequence(self : DerWriter) -> Bytes raise DerError

Wraps everything added so far in a SEQUENCE.

DerWriter::to_set_of

source

fn DerWriter::to_set_of(self : DerWriter) -> Bytes raise DerError

Wraps everything added so far in a SET OF, sorting the elements by their encoding as required for DER (X.690, 11.6).

ObjectIdentifier

source

pub struct ObjectIdentifier {
  arcs : Array[Int64]
}

A decoded OBJECT IDENTIFIER, stored as its arc values.

The first arc is always 0, 1, or 2 and the second arc is at most 39 when the first arc is 0 or 1 (X.690, 8.19).

ObjectIdentifier::arcs

source

fn ObjectIdentifier::arcs(self : ObjectIdentifier) -> Array[Int64]

The arcs of the identifier.

ObjectIdentifier::from_arcs

source

fn ObjectIdentifier::from_arcs(arcs : Array[Int64]) -> ObjectIdentifier raise DerError

Creates an object identifier from its arcs, validating the two leading arcs.

ObjectIdentifier::from_string

source

fn ObjectIdentifier::from_string(text : StringView) -> ObjectIdentifier raise DerError

Parses a dotted-decimal object identifier such as 2.5.29.17.

ObjectIdentifier::to_string

source

fn ObjectIdentifier::to_string(self : ObjectIdentifier) -> String

Renders the identifier in dotted decimal notation, for example 1.2.840.113549.1.1.1.

Tag

source

pub struct Tag {
  cls : TagClass
  constructed : Bool
  number : Int
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

A decoded ASN.1 tag: its class, whether the value is constructed, and the tag number.

Tag::equal

source

fn Tag::equal(Tag, Tag) -> Bool

Tag::new

source

fn Tag::new(cls : TagClass, number : Int, constructed? : Bool) -> Tag

Creates a tag. constructed defaults to false.

Tag::not_equal

source

fn Tag::not_equal(x : Tag, y : Tag) -> Bool

Tag::to_repr

source

fn Tag::to_repr(Tag) -> @moonbitlang/core/debug.Repr
Repr

Tag::to_string

source

fn Tag::to_string(self : Tag) -> String

Renders the tag in a compact, human readable form such as [CONTEXT 0 constructed].

TagClass

source

pub(all) enum TagClass {
  Universal
  Application
  ContextSpecific
  Private
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

ASN.1 tag class, carried in the two most significant bits of an identifier octet (X.690, 8.1.2.2).

TagClass::equal

source

fn TagClass::equal(TagClass, TagClass) -> Bool

TagClass::not_equal

source

fn TagClass::not_equal(x : TagClass, y : TagClass) -> Bool

TagClass::to_repr

source

fn TagClass::to_repr(TagClass) -> @moonbitlang/core/debug.Repr
Repr

TAG_BIT_STRING

source

let TAG_BIT_STRING : Int

TAG_BMP_STRING

source

let TAG_BMP_STRING : Int

TAG_BOOLEAN

source

let TAG_BOOLEAN : Int

Universal tag numbers defined by X.680 that are used by the encoder and decoder.

TAG_ENUMERATED

source

let TAG_ENUMERATED : Int

TAG_GENERALIZED_TIME

source

let TAG_GENERALIZED_TIME : Int

TAG_IA5_STRING

source

let TAG_IA5_STRING : Int

TAG_INTEGER

source

let TAG_INTEGER : Int

TAG_NULL

source

let TAG_NULL : Int

TAG_NUMERIC_STRING

source

let TAG_NUMERIC_STRING : Int

TAG_OBJECT_IDENTIFIER

source

let TAG_OBJECT_IDENTIFIER : Int

TAG_OCTET_STRING

source

let TAG_OCTET_STRING : Int

TAG_PRINTABLE_STRING

source

let TAG_PRINTABLE_STRING : Int

TAG_SEQUENCE

source

let TAG_SEQUENCE : Int

TAG_SET

source

let TAG_SET : Int

TAG_T61_STRING

source

let TAG_T61_STRING : Int

TAG_UNIVERSAL_STRING

source

let TAG_UNIVERSAL_STRING : Int

TAG_UTC_TIME

source

let TAG_UTC_TIME : Int

TAG_UTF8_STRING

source

let TAG_UTF8_STRING : Int

TAG_VISIBLE_STRING

source

let TAG_VISIBLE_STRING : Int

compare_octets

source

fn compare_octets(a : BytesView, b : BytesView) -> Int

Compares two octet strings the way DER orders the components of a SET OF: byte by byte as unsigned values, with a prefix ordering before its extension.

days_in_month

source

fn days_in_month(year : Int, month : Int) -> Int

Number of days in a month, or 0 when the month is out of range.

decode_bit_string

source

fn decode_bit_string(content : BytesView) -> (Int, Bytes) raise DerError

Decodes the value bits of a BIT STRING.

The first content octet is the number of unused trailing bits of the last byte (0-7); the remaining octets hold the value with those bits cleared, as required by X.690, 11.2.

decode_bmp_string

source

fn decode_bmp_string(content : BytesView) -> String raise DerError

Decodes a BMPString, which is UTF-16BE without a byte order mark.

BMPString is UCS-2, so characters outside the basic multilingual plane (which UTF-16 encodes as surrogate pairs) are rejected.

decode_boolean

source

fn decode_boolean(content : BytesView) -> Bool raise DerError

Decodes the content octets of a BOOLEAN.

DER requires 0xFF for true and 0x00 for false; any other value is rejected.

decode_generalized_time

source

fn decode_generalized_time(content : BytesView) -> Asn1Time raise DerError

Decodes a GeneralizedTime with seconds present and no fractional seconds, which is the only form DER and RFC 5280 allow.

decode_ia5_string

source

fn decode_ia5_string(content : BytesView) -> String raise DerError

Decodes an IA5String, whose alphabet is the 128 ASCII characters (X.680, 43).

decode_integer

source

fn decode_integer(content : BytesView) -> @moonbitlang/core/bigint.BigInt
BigInt raise DerError

Decodes the content octets of an INTEGER into an arbitrary-precision integer.

DER INTEGERs use two's complement, big-endian encoding with at least one content octet.

decode_null

source

fn decode_null(content : BytesView) -> Unit raise DerError

Decodes the content octets of a NULL, which must be empty.

decode_numeric_string

source

fn decode_numeric_string(content : BytesView) -> String raise DerError

Decodes a NumericString, whose alphabet is the digits and the space.

decode_object_identifier

source

fn decode_object_identifier(content : BytesView) -> ObjectIdentifier raise DerError

Decodes the content octets of an OBJECT IDENTIFIER.

decode_printable_string

source

fn decode_printable_string(content : BytesView) -> String raise DerError

Decodes a PrintableString, whose alphabet is ASCII (X.680, 41).

decode_universal_string

source

fn decode_universal_string(content : BytesView) -> String raise DerError

Decodes a UniversalString, which is UTF-32BE.

decode_utc_time

source

fn decode_utc_time(content : BytesView) -> Asn1Time raise DerError

Decodes a UTCTime. Two-digit years are mapped to 1950-2049, as required by RFC 5280.

decode_utf8_string

source

fn decode_utf8_string(content : BytesView) -> String raise DerError

Decodes a UTF8String.

decode_visible_string

source

fn decode_visible_string(content : BytesView) -> String raise DerError

Decodes a VisibleString, whose alphabet is the printable ASCII range.

encode_bit_string

source

fn encode_bit_string(value : BytesView, unused_bits? : Int) -> Bytes raise DerError

Encodes a BIT STRING.

encode_bit_string_content

source

fn encode_bit_string_content(value : BytesView, unused_bits? : Int) -> Bytes raise DerError

Encodes the content octets of a BIT STRING: the unused-bit count followed by the value octets (X.690, 8.6 and 11.2).

encode_bmp_string

source

fn encode_bmp_string(value : StringView) -> Bytes raise DerError

Encodes a BMPString as UTF-16BE without a byte order mark (X.680, 8.4).

encode_boolean

source

fn encode_boolean(value : Bool) -> Bytes raise DerError

Encodes a BOOLEAN. DER requires 0xFF for true and 0x00 for false.

encode_context_primitive

source

fn encode_context_primitive(number : Int, content : BytesView) -> Bytes raise DerError

Encodes a primitive implicitly tagged value, for example a context-specific string inside a certificate.

encode_enumerated

source

fn encode_enumerated(value : Int) -> Bytes raise DerError

Encodes an ENUMERATED from a machine integer.

encode_explicit

source

fn encode_explicit(number : Int, inner : BytesView) -> Bytes raise DerError

Wraps a single encoded value in an explicitly tagged constructed value.

encode_generalized_time

source

fn encode_generalized_time(value : Asn1Time) -> Bytes raise DerError

Encodes a GeneralizedTime. DER requires the Z designator.

encode_ia5_string

source

fn encode_ia5_string(value : StringView) -> Bytes raise DerError

Encodes an IA5String, whose alphabet is the 128 ASCII characters.

encode_int

source

fn encode_int(value : Int) -> Bytes raise DerError

Encodes an INTEGER from a machine integer.

encode_int64

source

fn encode_int64(value : Int64) -> Bytes raise DerError

Encodes an INTEGER from a 64-bit integer.

encode_integer

source

fn encode_integer(value : @moonbitlang/core/bigint.BigInt
BigInt) -> Bytes raise DerError

Encodes an INTEGER from an arbitrary-precision value.

encode_integer_content

source

fn encode_integer_content(value : @moonbitlang/core/bigint.BigInt
BigInt) -> Bytes

Encodes the content octets of an INTEGER: minimal two's complement, big-endian, always at least one octet (X.690, 8.3 and 11.3).

encode_length

source

fn encode_length(length : Int) -> Bytes raise DerError

Encodes a definite DER length using the minimal number of octets (X.690, 8.1.3 and 10.1).

encode_null

source

fn encode_null() -> Bytes raise DerError

Encodes a NULL.

encode_numeric_string

source

fn encode_numeric_string(value : StringView) -> Bytes raise DerError

Encodes a NumericString, whose alphabet is the digits and the space.

encode_object_identifier

source

fn encode_object_identifier(oid : ObjectIdentifier) -> Bytes raise DerError

Encodes an OBJECT IDENTIFIER.

encode_object_identifier_content

source

fn encode_object_identifier_content(oid : ObjectIdentifier) -> Bytes raise DerError

Encodes the content octets of an OBJECT IDENTIFIER, including the combined first two arcs (X.690, 8.19).

encode_octet_string

source

fn encode_octet_string(value : BytesView) -> Bytes raise DerError

Encodes an OCTET STRING.

encode_printable_string

source

fn encode_printable_string(value : StringView) -> Bytes raise DerError

Encodes a PrintableString, whose alphabet is defined by X.680 41.

encode_sequence

source

fn encode_sequence(elements : Array[BytesView]) -> Bytes raise DerError

Encodes a constructed value from already-encoded elements.

encode_set_of

source

fn encode_set_of(elements : Array[BytesView]) -> Bytes raise DerError

Encodes a DER SET OF, sorting the elements by their encoding.

encode_tag

source

fn encode_tag(tag : Tag) -> Bytes raise DerError

Encodes the identifier octets of tag, using the high-tag-number form for tag numbers of 31 or more (X.690, 8.1.2).

encode_time

source

fn encode_time(value : Asn1Time) -> Bytes raise DerError

Encodes a time as UTCTime when the year is in 1950-2049 and as GeneralizedTime otherwise, which is what X.509 profile requires.

encode_tlv

source

fn encode_tlv(tag : Tag, content : BytesView) -> Bytes raise DerError

Encodes a complete tag-length-value element.

encode_universal_string

source

fn encode_universal_string(value : StringView) -> Bytes raise DerError

Encodes a UniversalString as UTF-32BE (X.680, 8.7).

encode_utc_time

source

fn encode_utc_time(value : Asn1Time) -> Bytes raise DerError

Encodes a UTCTime. DER requires years in 1950-2049 and the Z designator.

encode_utf8_string

source

fn encode_utf8_string(value : StringView) -> Bytes raise DerError

Encodes a UTF8String.

encode_visible_string

source

fn encode_visible_string(value : StringView) -> Bytes raise DerError

Encodes a VisibleString, whose alphabet is the printable ASCII range.

is_leap_year

source

fn is_leap_year(year : Int) -> Bool

Whether the year is a leap year in the proleptic Gregorian calendar.

Source Files

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Pure-MoonBit ASN.1 DER codec and X.509 certificate toolkit.

asn1derx509pkicertificate

oilleelssq-wq

Apache-2.0

github.com/oilleelssq-wq/MoonBit-PKI

Updated 24 days ago

1K downloads

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#oilleelssq-wq/MoonBit-PKI

#Reading DER

#Decoding primitives

#Object identifiers

#Encoding

#Times

#DerError

#DerError::to_repr

#DerError::to_string

#Asn1Time

#Asn1Time::is_valid

#Asn1Time::new

#Asn1Time::to_string

#Der

#Der::as_bit_string

#Der::as_boolean

#Der::as_explicit

#Der::as_integer

#Der::as_null

#Der::as_object_identifier

#Der::as_octet_string

#Der::as_octet_string_view

#Der::as_sequence

#Der::as_string

#Der::as_time

#Der::as_utf8_string

#Der::child

#Der::children

#Der::content

#Der::encode

#Der::is_constructed

#Der::tag

#Der::to_string

#DerReader

#DerReader::from_bytes

#DerReader::is_empty

#DerReader::new

#DerReader::offset

#DerReader::peek_tag

#DerReader::read_all

#DerReader::read_element

#DerReader::read_expected

#DerReader::read_single

#DerReader::read_tlv

#DerReader::remaining

#DerWriter

#DerWriter::add

#DerWriter::is_empty

#DerWriter::length

#DerWriter::new

#DerWriter::to_content

#DerWriter::to_explicit

#DerWriter::to_sequence

#DerWriter::to_set_of

#ObjectIdentifier

#ObjectIdentifier::arcs

#ObjectIdentifier::from_arcs

#ObjectIdentifier::from_string

#ObjectIdentifier::to_string

#Tag

#Tag::equal

#Tag::new

#Tag::not_equal

#Tag::to_repr

#Tag::to_string

#TagClass

#TagClass::equal

#TagClass::not_equal

#TagClass::to_repr

#TAG_BIT_STRING

#TAG_BMP_STRING

#TAG_BOOLEAN

#TAG_ENUMERATED

#TAG_GENERALIZED_TIME

#TAG_IA5_STRING

#TAG_INTEGER

#TAG_NULL

#TAG_NUMERIC_STRING

#TAG_OBJECT_IDENTIFIER

#TAG_OCTET_STRING

DerError

DerError::to_repr

DerError::to_string

Asn1Time

Asn1Time::is_valid

Asn1Time::new

Asn1Time::to_string

Der

Der::as_bit_string

Der::as_boolean

Der::as_explicit

Der::as_integer

Der::as_null

Der::as_object_identifier

Der::as_octet_string

Der::as_octet_string_view

Der::as_sequence

Der::as_string

Der::as_time

Der::as_utf8_string

Der::child

Der::children

Der::content

Der::encode

Der::is_constructed

Der::tag

Der::to_string

DerReader

DerReader::from_bytes

DerReader::is_empty

DerReader::new

DerReader::offset

DerReader::peek_tag

DerReader::read_all

DerReader::read_element

DerReader::read_expected

DerReader::read_single

DerReader::read_tlv

DerReader::remaining

DerWriter

DerWriter::add

DerWriter::is_empty

DerWriter::length

DerWriter::new

DerWriter::to_content

DerWriter::to_explicit

DerWriter::to_sequence

DerWriter::to_set_of

ObjectIdentifier

ObjectIdentifier::arcs

ObjectIdentifier::from_arcs

ObjectIdentifier::from_string

ObjectIdentifier::to_string

Tag

Tag::equal

Tag::new

Tag::not_equal

Tag::to_repr

Tag::to_string

TagClass

TagClass::equal

TagClass::not_equal

TagClass::to_repr

TAG_BIT_STRING

TAG_BMP_STRING

TAG_BOOLEAN

TAG_ENUMERATED

TAG_GENERALIZED_TIME

TAG_IA5_STRING

TAG_INTEGER

TAG_NULL

TAG_NUMERIC_STRING

TAG_OBJECT_IDENTIFIER

TAG_OCTET_STRING

TAG_PRINTABLE_STRING

TAG_SEQUENCE

TAG_SET

TAG_T61_STRING

TAG_UNIVERSAL_STRING

TAG_UTC_TIME