Crypto-3.0.3: DES, Blowfish, AES, SHA1, MD5, RSA, X.509 Identity and Attribute Certificates, General ASN.1 Support, Base64, PKCS8, PKCS1v15, Hexdump, Support for Word128, Word192 and Word256 and Beyond, PKCS5 Padding, Various Encryption Modes e.g. Cipher Block Chaining all in one package. Contents Index

Codec.ASN1.BER Portability portable Stability experimental Maintainer dominic.steinitz@blueyonder.co.uk

Contents Types Type classes Function types

Description

Typecheck and decode BER representations as produced by Codec.ASN1.TLV

Synopsis

data Encoding = Primitive TagType TagValue Length PrimitiveValue | Constructed TagType TagValue Length [Encoding] data Defaulted = DefPrim TagType TagValue Length PrimitiveValue | DefCons TagType TagValue Length [Maybe Defaulted] type Length = Integer class Encode a where decode :: AbstractType -> Maybe Defaulted -> Maybe a encodedComponents :: Encoding -> [Encoding] encodedDefComps :: Defaulted -> [Maybe Defaulted] defaultedTagValue :: Defaulted -> TagValue typeCheck :: TypeDefn -> Encoding -> IO (TypeDefn, Defaulted) replaceRef :: AbstractType -> [AbstractType] -> [Maybe Defaulted] -> AbstractType

Types

data Encoding

Constructors Primitive TagType TagValue Length PrimitiveValue Constructed TagType TagValue Length [Encoding] Instances Eq Encoding Show Encoding

data Defaulted

Constructors DefPrim TagType TagValue Length PrimitiveValue DefCons TagType TagValue Length [Maybe Defaulted] Instances Eq Defaulted Show Defaulted

type Length = Integer

Type classes

class Encode a where

Methods decode :: AbstractType -> Maybe Defaulted -> Maybe a Instances Encode AlgorithmIdentifier Encode AttCertIssuer Encode AttCertValidityPeriod Encode Attribute Encode AttributeCertificate Encode AttributeCertificateInfo Encode AttributeTypeAndValue Encode AttributeValue Encode BitString Encode Bool Encode Certificate Encode CertificateVersion Encode DigestInfo Encode DirectoryString Encode GeneralName Encode GeneralNames Encode GeneralizedTime Encode Holder Encode HolderGeneralNames Encode IA5String Encode Integer Encode IssuerSerial Encode Name Encode Name Encode OID Encode OctetString Encode PrintableString Encode PrivateKeyInfo Encode RDNSequence Encode RSAPrivateKey Encode RSAPublicKey Encode RelativeDistinguishedName Encode SignedCertificate Encode SubjectPublicKeyInfo Encode Time Encode Validity Encode VisibleString Encode a => Encode (SetOf a) Encode a => Encode [a]

Function types

encodedComponents :: Encoding -> [Encoding]

encodedDefComps :: Defaulted -> [Maybe Defaulted]

defaultedTagValue :: Defaulted -> TagValue

typeCheck :: TypeDefn -> Encoding -> IO (TypeDefn, Defaulted)

Type check the abstract representation of a Tag Length Value against an ASN.1 type definition.

replaceRef :: AbstractType -> [AbstractType] -> [Maybe Defaulted] -> AbstractType

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