1 files changed, 103 insertions, 0 deletions
diff --git a/crypto/src/asn1/DerGraphicString.cs b/crypto/src/asn1/DerGraphicString.cs
new file mode 100644
index 000000000..f213f461d
--- /dev/null
+++ b/crypto/src/asn1/DerGraphicString.cs
@@ -0,0 +1,103 @@
+using System;
+
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1
+{
+ public class DerGraphicString
+ : DerStringBase
+ {
+ private readonly byte[] mString;
+
+ /**
+ * return a Graphic String from the passed in object
+ *
+ * @param obj a DerGraphicString or an object that can be converted into one.
+ * @exception IllegalArgumentException if the object cannot be converted.
+ * @return a DerGraphicString instance, or null.
+ */
+ public static DerGraphicString GetInstance(object obj)
+ {
+ if (obj == null || obj is DerGraphicString)
+ {
+ return (DerGraphicString)obj;
+ }
+
+ if (obj is byte[])
+ {
+ try
+ {
+ return (DerGraphicString)FromByteArray((byte[])obj);
+ }
+ catch (Exception e)
+ {
+ throw new ArgumentException("encoding error in GetInstance: " + e.ToString(), "obj");
+ }
+ }
+
+ throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj), "obj");
+ }
+
+ /**
+ * return a Graphic String from a tagged object.
+ *
+ * @param obj the tagged object holding the object we want
+ * @param explicit true if the object is meant to be explicitly
+ * tagged false otherwise.
+ * @exception IllegalArgumentException if the tagged object cannot
+ * be converted.
+ * @return a DerGraphicString instance, or null.
+ */
+ public static DerGraphicString GetInstance(Asn1TaggedObject obj, bool isExplicit)
+ {
+ Asn1Object o = obj.GetObject();
+
+ if (isExplicit || o is DerGraphicString)
+ {
+ return GetInstance(o);
+ }
+
+ return new DerGraphicString(((Asn1OctetString)o).GetOctets());
+ }
+
+ /**
+ * basic constructor - with bytes.
+ * @param string the byte encoding of the characters making up the string.
+ */
+ public DerGraphicString(byte[] encoding)
+ {
+ this.mString = Arrays.Clone(encoding);
+ }
+
+ public override string GetString()
+ {
+ return Strings.FromByteArray(mString);
+ }
+
+ public byte[] GetOctets()
+ {
+ return Arrays.Clone(mString);
+ }
+
+ internal override void Encode(DerOutputStream derOut)
+ {
+ derOut.WriteEncoded(Asn1Tags.GraphicString, mString);
+ }
+
+ protected override int Asn1GetHashCode()
+ {
+ return Arrays.GetHashCode(mString);
+ }
+
+ protected override bool Asn1Equals(
+ Asn1Object asn1Object)
+ {
+ DerGraphicString other = asn1Object as DerGraphicString;
+
+ if (other == null)
+ return false;
+
+ return Arrays.AreEqual(mString, other.mString);
+ }
+ }
+}
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