1 files changed, 63 insertions, 0 deletions
diff --git a/Crypto/src/asn1/Asn1Object.cs b/Crypto/src/asn1/Asn1Object.cs
new file mode 100644
index 000000000..08bd599c1
--- /dev/null
+++ b/Crypto/src/asn1/Asn1Object.cs
@@ -0,0 +1,63 @@
+using System;
+using System.IO;
+
+namespace Org.BouncyCastle.Asn1
+{
+ public abstract class Asn1Object
+ : Asn1Encodable
+ {
+ /// <summary>Create a base ASN.1 object from a byte array.</summary>
+ /// <param name="data">The byte array to parse.</param>
+ /// <returns>The base ASN.1 object represented by the byte array.</returns>
+ /// <exception cref="IOException">If there is a problem parsing the data.</exception>
+ public static Asn1Object FromByteArray(
+ byte[] data)
+ {
+ try
+ {
+ return new Asn1InputStream(data).ReadObject();
+ }
+ catch (InvalidCastException)
+ {
+ throw new IOException("cannot recognise object in stream");
+ }
+ }
+
+ /// <summary>Read a base ASN.1 object from a stream.</summary>
+ /// <param name="inStr">The stream to parse.</param>
+ /// <returns>The base ASN.1 object represented by the byte array.</returns>
+ /// <exception cref="IOException">If there is a problem parsing the data.</exception>
+ public static Asn1Object FromStream(
+ Stream inStr)
+ {
+ try
+ {
+ return new Asn1InputStream(inStr).ReadObject();
+ }
+ catch (InvalidCastException)
+ {
+ throw new IOException("cannot recognise object in stream");
+ }
+ }
+
+ public sealed override Asn1Object ToAsn1Object()
+ {
+ return this;
+ }
+
+ internal abstract void Encode(DerOutputStream derOut);
+
+ protected abstract bool Asn1Equals(Asn1Object asn1Object);
+ protected abstract int Asn1GetHashCode();
+
+ internal bool CallAsn1Equals(Asn1Object obj)
+ {
+ return Asn1Equals(obj);
+ }
+
+ internal int CallAsn1GetHashCode()
+ {
+ return Asn1GetHashCode();
+ }
+ }
+}
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