1 files changed, 102 insertions, 0 deletions
diff --git a/Crypto/src/asn1/x509/SubjectPublicKeyInfo.cs b/Crypto/src/asn1/x509/SubjectPublicKeyInfo.cs
new file mode 100644
index 000000000..8ce4b2762
--- /dev/null
+++ b/Crypto/src/asn1/x509/SubjectPublicKeyInfo.cs
@@ -0,0 +1,102 @@
+using System;
+using System.Collections;
+using System.IO;
+
+namespace Org.BouncyCastle.Asn1.X509
+{
+ /**
+ * The object that contains the public key stored in a certficate.
+ * <p>
+ * The GetEncoded() method in the public keys in the JCE produces a DER
+ * encoded one of these.</p>
+ */
+ public class SubjectPublicKeyInfo
+ : Asn1Encodable
+ {
+ private readonly AlgorithmIdentifier algID;
+ private readonly DerBitString keyData;
+
+ public static SubjectPublicKeyInfo GetInstance(
+ Asn1TaggedObject obj,
+ bool explicitly)
+ {
+ return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
+ }
+
+ public static SubjectPublicKeyInfo GetInstance(
+ object obj)
+ {
+ if (obj is SubjectPublicKeyInfo)
+ return (SubjectPublicKeyInfo) obj;
+
+ if (obj != null)
+ return new SubjectPublicKeyInfo(Asn1Sequence.GetInstance(obj));
+
+ return null;
+ }
+
+ public SubjectPublicKeyInfo(
+ AlgorithmIdentifier algID,
+ Asn1Encodable publicKey)
+ {
+ this.keyData = new DerBitString(publicKey);
+ this.algID = algID;
+ }
+
+ public SubjectPublicKeyInfo(
+ AlgorithmIdentifier algID,
+ byte[] publicKey)
+ {
+ this.keyData = new DerBitString(publicKey);
+ this.algID = algID;
+ }
+
+ private SubjectPublicKeyInfo(
+ Asn1Sequence seq)
+ {
+ if (seq.Count != 2)
+ throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
+
+ this.algID = AlgorithmIdentifier.GetInstance(seq[0]);
+ this.keyData = DerBitString.GetInstance(seq[1]);
+ }
+
+ public AlgorithmIdentifier AlgorithmID
+ {
+ get { return algID; }
+ }
+
+ /**
+ * for when the public key is an encoded object - if the bitstring
+ * can't be decoded this routine raises an IOException.
+ *
+ * @exception IOException - if the bit string doesn't represent a Der
+ * encoded object.
+ */
+ public Asn1Object GetPublicKey()
+ {
+ return Asn1Object.FromByteArray(keyData.GetBytes());
+ }
+
+ /**
+ * for when the public key is raw bits...
+ */
+ public DerBitString PublicKeyData
+ {
+ get { return keyData; }
+ }
+
+ /**
+ * Produce an object suitable for an Asn1OutputStream.
+ * <pre>
+ * SubjectPublicKeyInfo ::= Sequence {
+ * algorithm AlgorithmIdentifier,
+ * publicKey BIT STRING }
+ * </pre>
+ */
+ public override Asn1Object ToAsn1Object()
+ {
+ return new DerSequence(algID, keyData);
+ }
+ }
+}
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