3 files changed, 8 insertions, 0 deletions
diff --git a/android/olm-sdk/src/main/java/org/matrix/olm/OlmPkDecryption.java b/android/olm-sdk/src/main/java/org/matrix/olm/OlmPkDecryption.java
index 6522f70..6a6a22b 100644
--- a/android/olm-sdk/src/main/java/org/matrix/olm/OlmPkDecryption.java
+++ b/android/olm-sdk/src/main/java/org/matrix/olm/OlmPkDecryption.java
@@ -51,6 +51,8 @@ public class OlmPkDecryption {
         return (0 == mNativeId);
     }
 
+    public static native int privateKeyLength();
+
     public String setPrivateKey(byte[] privateKey) throws OlmException {
         try {
             byte[] key = setPrivateKeyJni(privateKey);
diff --git a/android/olm-sdk/src/main/jni/olm_pk.cpp b/android/olm-sdk/src/main/jni/olm_pk.cpp
index eff57a5..cb1422a 100644
--- a/android/olm-sdk/src/main/jni/olm_pk.cpp
+++ b/android/olm-sdk/src/main/jni/olm_pk.cpp
@@ -364,6 +364,11 @@ JNIEXPORT void OLM_PK_DECRYPTION_FUNC_DEF(releasePkDecryptionJni)(JNIEnv *env, j
     }
 }
 
+JNIEXPORT jint OLM_PK_DECRYPTION_FUNC_DEF(privateKeyLength)(JNIEnv *env, jobject thiz)
+{
+    return (jint) olm_pk_private_key_length();
+}
+
 JNIEXPORT jbyteArray OLM_PK_DECRYPTION_FUNC_DEF(setPrivateKeyJni)(JNIEnv *env, jobject thiz, jbyteArray key)
 {
     jbyteArray publicKeyRet = 0;
diff --git a/android/olm-sdk/src/main/jni/olm_pk.h b/android/olm-sdk/src/main/jni/olm_pk.h
index 5f45462..a17d0f2 100644
--- a/android/olm-sdk/src/main/jni/olm_pk.h
+++ b/android/olm-sdk/src/main/jni/olm_pk.h
@@ -35,6 +35,7 @@ JNIEXPORT jbyteArray OLM_PK_ENCRYPTION_FUNC_DEF(encryptJni)(JNIEnv *env, jobject
 
 JNIEXPORT jlong OLM_PK_DECRYPTION_FUNC_DEF(createNewPkDecryptionJni)(JNIEnv *env, jobject thiz);
 JNIEXPORT void OLM_PK_DECRYPTION_FUNC_DEF(releasePkDecryptionJni)(JNIEnv *env, jobject thiz);
+JNIEXPORT jint OLM_PK_DECRYPTION_FUNC_DEF(privateKeyLength)(JNIEnv *env, jobject thiz);
 JNIEXPORT jbyteArray OLM_PK_DECRYPTION_FUNC_DEF(setPrivateKeyJni)(JNIEnv *env, jobject thiz, jbyteArray key);
 JNIEXPORT jbyteArray OLM_PK_DECRYPTION_FUNC_DEF(generateKeyJni)(JNIEnv *env, jobject thiz);
 JNIEXPORT jbyteArray OLM_PK_DECRYPTION_FUNC_DEF(privateKeyJni)(JNIEnv *env, jobject thiz);