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/DerBMPString.cs | 115 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 crypto/src/asn1/DerBMPString.cs (limited to 'crypto/src/asn1/DerBMPString.cs') diff --git a/crypto/src/asn1/DerBMPString.cs b/crypto/src/asn1/DerBMPString.cs new file mode 100644 index 000000000..4f7e0a635 --- /dev/null +++ b/crypto/src/asn1/DerBMPString.cs @@ -0,0 +1,115 @@ +using System; + +namespace Org.BouncyCastle.Asn1 +{ + /** + * Der BMPString object. + */ + public class DerBmpString + : DerStringBase + { + private readonly string str; + + /** + * return a BMP string from the given object. + * + * @param obj the object we want converted. + * @exception ArgumentException if the object cannot be converted. + */ + public static DerBmpString GetInstance( + object obj) + { + if (obj == null || obj is DerBmpString) + { + return (DerBmpString)obj; + } + + throw new ArgumentException("illegal object in GetInstance: " + obj.GetType().Name); + } + + /** + * return a BMP 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 DerBmpString GetInstance( + Asn1TaggedObject obj, + bool isExplicit) + { + Asn1Object o = obj.GetObject(); + + if (isExplicit || o is DerBmpString) + { + return GetInstance(o); + } + + return new DerBmpString(Asn1OctetString.GetInstance(o).GetOctets()); + } + + /** + * basic constructor - byte encoded string. + */ + public DerBmpString( + byte[] str) + { + if (str == null) + throw new ArgumentNullException("str"); + + char[] cs = new char[str.Length / 2]; + + for (int i = 0; i != cs.Length; i++) + { + cs[i] = (char)((str[2 * i] << 8) | (str[2 * i + 1] & 0xff)); + } + + this.str = new string(cs); + } + + /** + * basic constructor + */ + public DerBmpString( + string str) + { + if (str == null) + throw new ArgumentNullException("str"); + + this.str = str; + } + + public override string GetString() + { + return str; + } + + protected override bool Asn1Equals( + Asn1Object asn1Object) + { + DerBmpString other = asn1Object as DerBmpString; + + if (other == null) + return false; + + return this.str.Equals(other.str); + } + + internal override void Encode( + DerOutputStream derOut) + { + char[] c = str.ToCharArray(); + byte[] b = new byte[c.Length * 2]; + + for (int i = 0; i != c.Length; i++) + { + b[2 * i] = (byte)(c[i] >> 8); + b[2 * i + 1] = (byte)c[i]; + } + + derOut.WriteEncoded(Asn1Tags.BmpString, b); + } + } +} -- cgit 1.4.1