1 files changed, 134 insertions, 0 deletions
diff --git a/repackaged_platform/bcprov/src/main/java/com/android/internal/org/bouncycastle/crypto/util/SSHNamedCurves.java b/repackaged_platform/bcprov/src/main/java/com/android/internal/org/bouncycastle/crypto/util/SSHNamedCurves.java
new file mode 100644
index 00000000..9853bf21
--- /dev/null
+++ b/repackaged_platform/bcprov/src/main/java/com/android/internal/org/bouncycastle/crypto/util/SSHNamedCurves.java
@@ -0,0 +1,134 @@
+/* GENERATED SOURCE. DO NOT MODIFY. */
+package com.android.internal.org.bouncycastle.crypto.util;
+
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import com.android.internal.org.bouncycastle.asn1.ASN1ObjectIdentifier;
+import com.android.internal.org.bouncycastle.asn1.nist.NISTNamedCurves;
+import com.android.internal.org.bouncycastle.asn1.sec.SECObjectIdentifiers;
+import com.android.internal.org.bouncycastle.asn1.x9.X9ECParameters;
+import com.android.internal.org.bouncycastle.crypto.ec.CustomNamedCurves;
+import com.android.internal.org.bouncycastle.crypto.params.ECDomainParameters;
+import com.android.internal.org.bouncycastle.crypto.params.ECNamedDomainParameters;
+import com.android.internal.org.bouncycastle.math.ec.ECCurve;
+import com.android.internal.org.bouncycastle.util.Strings;
+
+/**
+ * @hide This class is not part of the Android public SDK API
+ */
+public class SSHNamedCurves
+{
+    private static final Map<ASN1ObjectIdentifier, String> oidToName;
+    private static final Map<String, ASN1ObjectIdentifier> oidMap =
+        Collections.unmodifiableMap(new HashMap<String, ASN1ObjectIdentifier>()
+        {
+            {
+                put("nistp256", SECObjectIdentifiers.secp256r1);
+                put("nistp384", SECObjectIdentifiers.secp384r1);
+                put("nistp521", SECObjectIdentifiers.secp521r1);
+                put("nistk163", SECObjectIdentifiers.sect163k1);
+                put("nistp192", SECObjectIdentifiers.secp192r1);
+                put("nistp224", SECObjectIdentifiers.secp224r1);
+                put("nistk233", SECObjectIdentifiers.sect233k1);
+                put("nistb233", SECObjectIdentifiers.sect233r1);
+                put("nistk283", SECObjectIdentifiers.sect283k1);
+                put("nistk409", SECObjectIdentifiers.sect409k1);
+                put("nistb409", SECObjectIdentifiers.sect409r1);
+                put("nistt571", SECObjectIdentifiers.sect571k1);
+            }
+        });
+
+    private static final Map<String, String> curveNameToSSHName = Collections.unmodifiableMap(new HashMap<String, String>()
+    {
+        {
+            String[][] curves = {
+                {"secp256r1", "nistp256"},
+                {"secp384r1", "nistp384"},
+                {"secp521r1", "nistp521"},
+                {"sect163k1", "nistk163"},
+                {"secp192r1", "nistp192"},
+                {"secp224r1", "nistp224"},
+                {"sect233k1", "nistk233"},
+                {"sect233r1", "nistb233"},
+                {"sect283k1", "nistk283"},
+                {"sect409k1", "nistk409"},
+                {"sect409r1", "nistb409"},
+                {"sect571k1", "nistt571"}
+            };
+            for (int i = 0; i != curves.length; i++)
+            {
+                String[] item = curves[i];
+                put(item[0], item[1]);
+            }
+        }
+    });
+    private static HashMap<ECCurve, String> curveMap = new HashMap<ECCurve, String>()
+    {
+        {
+            Enumeration<Object> e = CustomNamedCurves.getNames();
+            while (e.hasMoreElements())
+            {
+                String name = (String)e.nextElement();
+                X9ECParameters parameters = CustomNamedCurves.getByName(name);
+                put(parameters.getCurve(), name);
+            }
+
+        }
+    };
+
+    static
+    {
+        oidToName = Collections.unmodifiableMap(new HashMap<ASN1ObjectIdentifier, String>()
+        {
+            {
+                for (Iterator it = oidMap.keySet().iterator(); it.hasNext();)
+                {
+                    String key = (String)it.next();
+                    put(oidMap.get(key), key);
+                }
+            }
+        });
+
+
+    }
+
+    public static ASN1ObjectIdentifier getByName(String sshName)
+    {
+        return (ASN1ObjectIdentifier)oidMap.get(sshName);
+    }
+
+    public static X9ECParameters getParameters(String sshName)
+    {
+        return NISTNamedCurves.getByOID((ASN1ObjectIdentifier)oidMap.get(Strings.toLowerCase(sshName)));
+    }
+
+    public static X9ECParameters getParameters(ASN1ObjectIdentifier oid)
+    {
+        return NISTNamedCurves.getByOID(oid);
+    }
+
+    public static String getName(ASN1ObjectIdentifier oid)
+    {
+        return (String)oidToName.get(oid);
+    }
+
+    public static String getNameForParameters(ECDomainParameters parameters)
+    {
+        if (parameters instanceof ECNamedDomainParameters)
+        {
+            return getName(((ECNamedDomainParameters)parameters).getName());
+        }
+
+
+        return getNameForParameters(parameters.getCurve());
+    }
+
+    public static String getNameForParameters(ECCurve curve)
+    {
+        return (String)curveNameToSSHName.get(curveMap.get(curve));
+    }
+}