1 files changed, 17 insertions, 0 deletions
diff --git a/pkix/src/main/java/org/spongycastle/operator/SecretKeySizeProvider.java b/pkix/src/main/java/org/spongycastle/operator/SecretKeySizeProvider.java
new file mode 100644
index 00000000..cb2d6561
--- /dev/null
+++ b/pkix/src/main/java/org/spongycastle/operator/SecretKeySizeProvider.java
@@ -0,0 +1,17 @@
+package org.spongycastle.operator;
+
+import org.spongycastle.asn1.ASN1ObjectIdentifier;
+import org.spongycastle.asn1.x509.AlgorithmIdentifier;
+
+public interface SecretKeySizeProvider
+{
+    int getKeySize(AlgorithmIdentifier algorithmIdentifier);
+
+    /**
+     * Return the key size implied by the OID, if one exists.
+     *
+     * @param algorithm the OID of the algorithm of interest.
+     * @return -1 if there is no fixed key size associated with the OID, or more information is required.
+     */
+    int getKeySize(ASN1ObjectIdentifier algorithm);
+}