From 44288db4414158ac9b98a507b15e81d0d3c66ca6 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Fri, 28 Jun 2013 15:26:06 +0700 Subject: Initial import of old CVS repository --- crypto/src/asn1/Asn1OctetString.cs | 119 +++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 crypto/src/asn1/Asn1OctetString.cs (limited to 'crypto/src/asn1/Asn1OctetString.cs') diff --git a/crypto/src/asn1/Asn1OctetString.cs b/crypto/src/asn1/Asn1OctetString.cs new file mode 100644 index 000000000..9c738a8f2 --- /dev/null +++ b/crypto/src/asn1/Asn1OctetString.cs @@ -0,0 +1,119 @@ +using System; +using System.Collections; +using System.IO; + +using Org.BouncyCastle.Utilities; +using Org.BouncyCastle.Utilities.Encoders; + +namespace Org.BouncyCastle.Asn1 +{ + public abstract class Asn1OctetString + : Asn1Object, Asn1OctetStringParser + { + internal byte[] str; + + /** + * return an Octet string from a tagged object. + * + * @param obj the tagged object holding the object we want. + * @param explicitly true if the object is meant to be explicitly + * tagged false otherwise. + * @exception ArgumentException if the tagged object cannot + * be converted. + */ + public static Asn1OctetString GetInstance( + Asn1TaggedObject obj, + bool isExplicit) + { + Asn1Object o = obj.GetObject(); + + if (isExplicit || o is Asn1OctetString) + { + return GetInstance(o); + } + + return BerOctetString.FromSequence(Asn1Sequence.GetInstance(o)); + } + + /** + * return an Octet string from the given object. + * + * @param obj the object we want converted. + * @exception ArgumentException if the object cannot be converted. + */ + public static Asn1OctetString GetInstance(object obj) + { + if (obj == null || obj is Asn1OctetString) + { + return (Asn1OctetString)obj; + } + + // TODO: this needs to be deleted in V2 + if (obj is Asn1TaggedObject) + return GetInstance(((Asn1TaggedObject)obj).GetObject()); + + throw new ArgumentException("illegal object in GetInstance: " + obj.GetType().Name); + } + + /** + * @param string the octets making up the octet string. + */ + internal Asn1OctetString( + byte[] str) + { + if (str == null) + throw new ArgumentNullException("str"); + + this.str = str; + } + + internal Asn1OctetString( + Asn1Encodable obj) + { + try + { + this.str = obj.GetEncoded(Asn1Encodable.Der); + } + catch (IOException e) + { + throw new ArgumentException("Error processing object : " + e.ToString()); + } + } + + public Stream GetOctetStream() + { + return new MemoryStream(str, false); + } + + public Asn1OctetStringParser Parser + { + get { return this; } + } + + public virtual byte[] GetOctets() + { + return str; + } + + protected override int Asn1GetHashCode() + { + return Arrays.GetHashCode(GetOctets()); + } + + protected override bool Asn1Equals( + Asn1Object asn1Object) + { + DerOctetString other = asn1Object as DerOctetString; + + if (other == null) + return false; + + return Arrays.AreEqual(GetOctets(), other.GetOctets()); + } + + public override string ToString() + { + return "#" + Hex.ToHexString(str); + } + } +} -- cgit 1.4.1