ber

package
v0.0.0-...-972597a Latest Latest
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 Go to latest Published: Jun 10, 2024 License: Unlicense Imports: 8 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	Universal   = 0x00
	Application = 0x01
	Context     = 0x02
	Private     = 0x03
)
View Source 
const (
	TagEOC              = 0x00
	TagBool             = 0x01
	TagInteger          = 0x02
	TagBitString        = 0x03
	TagOctetString      = 0x04
	TagNULL             = 0x05
	TagObjectIdentifier = 0x06
	TagObjectDescriptor = 0x07
	TagExternal         = 0x08
	TagRealFloat        = 0x09
	TagEnumerated       = 0x0a
	TagEmbeddedPDV      = 0x0b
	TagUTF8String       = 0x0c
	TagRelativeOID      = 0x0d
	TagSequence         = 0x10
	TagSet              = 0x11
	TagNumericString    = 0x12
	TagPrintableString  = 0x13
	TagT61String        = 0x14
	TagVideotexString   = 0x15
	TagIA5String        = 0x16
	TagUTCTime          = 0x17
	TagGeneralizedTime  = 0x18
	TagGraphicString    = 0x19
	TagVisibleString    = 0x1a
	TagGeneralString    = 0x1b
	TagUniversalString  = 0x1c
	TagCharacterString  = 0x1d
	TagBMPString        = 0x1e
)

Variables

This section is empty.

Functions

func EncodeTree 

func EncodeTree(tree *Tree) ([]byte, error)

Types

type ASN1RawValue 

type ASN1RawValue struct {
	V *asn1.RawValue
}

func (ASN1RawValue) Marshal 

func (m ASN1RawValue) Marshal() (*Tree, error)

func (ASN1RawValue) Unmarshal 

func (m ASN1RawValue) Unmarshal(tree *Tree) (err error)

type BigInt 

type BigInt struct {
	V **big.Int
}

func (BigInt) Marshal 

func (m BigInt) Marshal() (*Tree, error)

func (BigInt) Unmarshal 

func (m BigInt) Unmarshal(tree *Tree) error

type Check 

type Check struct {
	Class int
	Tag   int
	Sub   Marshaler
}

func (Check) Marshal 

func (m Check) Marshal() (*Tree, error)

func (Check) Unmarshal 

func (m Check) Unmarshal(tree *Tree) (err error)

type Choice 

type Choice []Marshaler

func (Choice) Marshal 

func (s Choice) Marshal() (*Tree, error)

func (Choice) Unmarshal 

func (s Choice) Unmarshal(tree *Tree) (err error)

type DER 

type DER struct {
	V *[]byte
}

func (DER) Marshal 

func (m DER) Marshal() (*Tree, error)

func (DER) Unmarshal 

func (m DER) Unmarshal(tree *Tree) (err error)

type Decoder 

type Decoder struct {
	// contains filtered or unexported fields
}

func NewDecoder 

func NewDecoder(r io.Reader) *Decoder

func (*Decoder) Token 

func (d *Decoder) Token() (t *Token, err error)

Returns the next token in the input stream. At the end of the input stream, Token returns nil, io.EOF.

type Explicit 

type Explicit struct {
	Sub Marshaler
}

func (Explicit) Marshal 

func (m Explicit) Marshal() (tree *Tree, err error)

func (Explicit) Unmarshal 

func (m Explicit) Unmarshal(tree *Tree) (err error)

type Int64 

type Int64 struct {
	V *int64
}

func (Int64) Marshal 

func (m Int64) Marshal() (*Tree, error)

func (Int64) Unmarshal 

func (m Int64) Unmarshal(tree *Tree) error

type Kind 

type Kind int
const (
	Value Kind = iota
	Constructed
	EndConstructed
)

type Marshaler 

type Marshaler interface {
	Marshal() (*Tree, error)
	Unmarshal(*Tree) error
}

type ObjectIdentifier 

type ObjectIdentifier struct {
	V *asn1.ObjectIdentifier
}

func (ObjectIdentifier) Marshal 

func (m ObjectIdentifier) Marshal() (*Tree, error)

func (ObjectIdentifier) Unmarshal 

func (m ObjectIdentifier) Unmarshal(tree *Tree) error

type OctetString 

type OctetString struct {
	V *[]byte
}

func (OctetString) Marshal 

func (m OctetString) Marshal() (*Tree, error)

func (OctetString) Unmarshal 

func (m OctetString) Unmarshal(tree *Tree) error

type Optional 

type Optional struct {
	Sub Marshaler
}

func (Optional) Marshal 

func (m Optional) Marshal() (tree *Tree, err error)

func (Optional) Unmarshal 

func (m Optional) Unmarshal(tree *Tree) (err error)

type RawTree 

type RawTree struct {
	Tree **Tree
}

func (RawTree) Marshal 

func (m RawTree) Marshal() (*Tree, error)

func (RawTree) Unmarshal 

func (m RawTree) Unmarshal(tree *Tree) error

type Sequence 

type Sequence []Marshaler

func (Sequence) Marshal 

func (s Sequence) Marshal() (root *Tree, err error)

func (Sequence) Unmarshal 

func (s Sequence) Unmarshal(tree *Tree) (err error)

type StructuralError 

type StructuralError struct {
	Msg string
}

A StructuralError suggests that the ASN.1 data is valid, but the Go type which is receiving it doesn't match.

func (StructuralError) Error 

func (e StructuralError) Error() string

type SyntaxError 

type SyntaxError struct {
	Msg string
}

A SyntaxError suggests that the ASN.1 data is invalid.

func (SyntaxError) Error 

func (e SyntaxError) Error() string

type Token 

type Token struct {
	Kind  Kind
	Class int
	Tag   int
	Bytes []byte
}

func (*Token) AsBigInt 

func (v *Token) AsBigInt() (*big.Int, error)

parseBigInt treats the given bytes as a big-endian, signed integer and returns the result.

func (*Token) AsBitString 

func (v *Token) AsBitString() (ret asn1.BitString, err error)

AsBitString parses an ASN.1 bit string from the given byte slice and returns it.

func (*Token) AsBool 

func (v *Token) AsBool() (ret bool, err error)

func (*Token) AsGeneralizedTime 

func (v *Token) AsGeneralizedTime() (ret time.Time, err error)

AsGeneralizedTime parses the GeneralizedTime from the given byte slice and returns the resulting time.

func (*Token) AsIA5String 

func (v *Token) AsIA5String() (ret string, err error)

parseIA5String parses a ASN.1 IA5String (ASCII string) from the given byte slice and returns it.

func (*Token) AsInt32 

func (v *Token) AsInt32() (ret int32, err error)

AsInt32 treats the given bytes as a big-endian, signed integer and returns the result.

func (*Token) AsInt64 

func (v *Token) AsInt64() (ret int64, err error)

AsInt64 treats the given bytes as a big-endian, signed integer and returns the result.

func (*Token) AsNumericString 

func (v *Token) AsNumericString() (ret string, err error)

NumericString

func (*Token) AsObjectIdentifier 

func (val *Token) AsObjectIdentifier() (s asn1.ObjectIdentifier, err error)

AsObjectIdentifier parses an OBJECT IDENTIFIER from the given bytes and returns it. An object identifier is a sequence of variable length integers that are assigned in a hierarchy.

func (*Token) AsOctetString 

func (v *Token) AsOctetString() (ret []byte, err error)

func (*Token) AsPrintableString 

func (v *Token) AsPrintableString() (ret string, err error)

AsPrintableString parses a ASN.1 PrintableString from the given byte array and returns it.

func (*Token) AsT61String 

func (v *Token) AsT61String() (ret string, err error)

parseT61String parses a ASN.1 T61String (8-bit clean string) from the given byte slice and returns it.

func (*Token) AsUTCTime 

func (v *Token) AsUTCTime() (ret time.Time, err error)

func (*Token) AsUTF8String 

func (v *Token) AsUTF8String() (ret string, err error)

parseUTF8String parses a ASN.1 UTF8String (raw UTF-8) from the given byte array and returns it.

func (*Token) AsVisibleString 

func (v *Token) AsVisibleString() (ret string, err error)

AsVisibleString parses a ASN.1 VisibleString from the given byte array and returns it.

func (*Token) Universal 

func (v *Token) Universal() (ret interface{}, err error)

type Tree 

type Tree struct {
	*Token
	Children []*Tree
}

func ASN1Tree 

func ASN1Tree(v interface{}) (*Tree, error)

func DecodeTree 

func DecodeTree(data []byte) (*Tree, error)

func ParseTree 

func ParseTree(d *Decoder) (tree *Tree, err error)

func (*Tree) AsOctetString 

func (t *Tree) AsOctetString() (ret []byte, err error)

Source Files

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