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111 lines
2.4 KiB
111 lines
2.4 KiB
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR) |
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#pragma warning disable |
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using System; |
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Cms |
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{ |
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/** |
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* Produce an object suitable for an Asn1OutputStream. |
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* <pre> |
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* EnvelopedData ::= SEQUENCE { |
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* version CMSVersion, |
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* originatorInfo [0] IMPLICIT OriginatorInfo OPTIONAL, |
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* recipientInfos RecipientInfos, |
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* encryptedContentInfo EncryptedContentInfo, |
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* unprotectedAttrs [1] IMPLICIT UnprotectedAttributes OPTIONAL |
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* } |
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* </pre> |
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*/ |
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public class EnvelopedDataParser |
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{ |
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private Asn1SequenceParser _seq; |
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private DerInteger _version; |
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private IAsn1Convertible _nextObject; |
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private bool _originatorInfoCalled; |
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public EnvelopedDataParser( |
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Asn1SequenceParser seq) |
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{ |
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this._seq = seq; |
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this._version = (DerInteger)seq.ReadObject(); |
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} |
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public DerInteger Version |
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{ |
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get { return _version; } |
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} |
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public OriginatorInfo GetOriginatorInfo() |
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{ |
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_originatorInfoCalled = true; |
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if (_nextObject == null) |
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{ |
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_nextObject = _seq.ReadObject(); |
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} |
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if (_nextObject is Asn1TaggedObjectParser && ((Asn1TaggedObjectParser)_nextObject).TagNo == 0) |
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{ |
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Asn1SequenceParser originatorInfo = (Asn1SequenceParser) |
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((Asn1TaggedObjectParser)_nextObject).GetObjectParser(Asn1Tags.Sequence, false); |
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_nextObject = null; |
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return OriginatorInfo.GetInstance(originatorInfo.ToAsn1Object()); |
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} |
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return null; |
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} |
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public Asn1SetParser GetRecipientInfos() |
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{ |
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if (!_originatorInfoCalled) |
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{ |
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GetOriginatorInfo(); |
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} |
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if (_nextObject == null) |
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{ |
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_nextObject = _seq.ReadObject(); |
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} |
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Asn1SetParser recipientInfos = (Asn1SetParser)_nextObject; |
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_nextObject = null; |
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return recipientInfos; |
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} |
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public EncryptedContentInfoParser GetEncryptedContentInfo() |
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{ |
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if (_nextObject == null) |
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{ |
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_nextObject = _seq.ReadObject(); |
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} |
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if (_nextObject != null) |
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{ |
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Asn1SequenceParser o = (Asn1SequenceParser) _nextObject; |
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_nextObject = null; |
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return new EncryptedContentInfoParser(o); |
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} |
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return null; |
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} |
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public Asn1SetParser GetUnprotectedAttrs() |
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{ |
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if (_nextObject == null) |
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{ |
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_nextObject = _seq.ReadObject(); |
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} |
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if (_nextObject != null) |
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{ |
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IAsn1Convertible o = _nextObject; |
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_nextObject = null; |
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return (Asn1SetParser)((Asn1TaggedObjectParser)o).GetObjectParser(Asn1Tags.Set, false); |
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} |
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return null; |
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} |
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} |
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} |
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#pragma warning restore |
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#endif
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