diff --git a/src/basic_api.cc b/src/basic_api.cc
new file mode 100644
index 0000000..439da33
--- /dev/null
+++ b/src/basic_api.cc
@@ -0,0 +1,94 @@
+#include <pEp/keymanagement.h>
+
+#include "throw_pEp_exception.hh"
+#include "jniutils.hh"
+
+using namespace pEp::JNIAdapter;
+
+extern "C" {
+JNIEXPORT jobject JNICALL Java_org_pEp_jniadapter_Engine_trustwords(
+        JNIEnv *env,
+        jobject obj,
+        jobject ident
+    )
+{
+    PEP_SESSION session = (PEP_SESSION) callLongMethod(env, obj, "getHandle");
+    pEp_identity *_ident = to_identity(env, ident);
+    char *words;
+    size_t wsize;
+
+    if (_ident->fpr == NULL || _ident->fpr[0] == 0) {
+        if (_ident->me)
+            ::myself(session, _ident);
+        else
+            ::update_identity(session, _ident);
+    }
+
+    if (_ident->fpr == NULL || _ident->fpr[0] == 0) {
+        throw_pEp_Exception(env, PEP_CANNOT_FIND_IDENTITY);
+        return NULL;
+    }
+
+    PEP_STATUS status = ::trustwords(session, _ident->fpr, _ident->lang, &words, &wsize, 10);
+    if (status != PEP_STATUS_OK) {
+        throw_pEp_Exception(env, status);
+        return NULL;
+    }
+
+    return from_string(env, words);
+}
+
+JNIEXPORT jobject JNICALL Java_org_pEp_jniadapter_Engine_myself(
+        JNIEnv *env,
+        jobject obj,
+        jobject ident
+    )
+{
+    PEP_SESSION session = (PEP_SESSION) callLongMethod(env, obj, "getHandle");
+    pEp_identity *_ident = to_identity(env, ident);
+
+    ::myself(session, _ident);
+
+    return from_identity(env, _ident);
+}
+
+JNIEXPORT jobject JNICALL Java_org_pEp_jniadapter_Engine_updateIdentity(
+        JNIEnv *env,
+        jobject obj,
+        jobject ident
+    )
+{
+    PEP_SESSION session = (PEP_SESSION) callLongMethod(env, obj, "getHandle");
+    pEp_identity *_ident = to_identity(env, ident);
+
+    ::update_identity(session, _ident);
+
+    return from_identity(env, _ident);
+}
+
+JNIEXPORT void JNICALL Java_org_pEp_jniadapter_Engine_keyCompromized(
+        JNIEnv *env,
+        jobject obj,
+        jobject ident
+    )
+{
+    PEP_SESSION session = (PEP_SESSION) callLongMethod(env, obj, "getHandle");
+    pEp_identity *_ident = to_identity(env, ident);
+
+    if (_ident->fpr == NULL || _ident->fpr[0] == 0) {
+        if (_ident->me)
+            ::myself(session, _ident);
+        else
+            ::update_identity(session, _ident);
+    }
+
+    if (_ident->fpr == NULL || _ident->fpr[0] == 0) {
+        throw_pEp_Exception(env, PEP_CANNOT_FIND_IDENTITY);
+        return;
+    }
+
+    ::key_compromized(session, _ident->fpr);
+}
+
+} // extern "C"
+