Initial import of old CVS repository
1 files changed, 115 insertions, 0 deletions
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);
+ }
+ }
+}
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