diff --git a/boards.txt b/boards.txt
index 4ec896b00..c7d3eb3d5 100644
--- a/boards.txt
+++ b/boards.txt
@@ -82,8 +82,8 @@ envie_m7.build.alignment=32
 envie_m7.build.version=1.2.3+4
 envie_m7.menu.security.sien.build.postbuild.cmd="{tools.imgtool.path}/{tools.imgtool.cmd}" {tools.imgtool.flags}
 envie_m7.menu.security.sien.build.keys.keychain={runtime.platform.path}/libraries/MCUboot/default_keys
-envie_m7.menu.security.sien.build.keys.sign_key=ecdsa-p256-signing-key.pem
-envie_m7.menu.security.sien.build.keys.encrypt_key=ecdsa-p256-encrypt-key.pem
+envie_m7.menu.security.sien.build.keys.sign_key=ecdsa-p256-signing-priv-key.pem
+envie_m7.menu.security.sien.build.keys.encrypt_key=ecdsa-p256-encrypt-pub-key.pem
 envie_m7.menu.security.none.build.postbuild.cmd="{tools.imgtool.path}/{tools.imgtool.cmd}" exit
 envie_m7.compiler.mbed.arch.define=
 envie_m7.compiler.mbed.defines={build.variant.path}/defines.txt
diff --git a/libraries/MCUboot/default_keys/ecdsa-p256-encrypt-key.pem b/libraries/MCUboot/default_keys/ecdsa-p256-encrypt-priv-key.pem
similarity index 100%
rename from libraries/MCUboot/default_keys/ecdsa-p256-encrypt-key.pem
rename to libraries/MCUboot/default_keys/ecdsa-p256-encrypt-priv-key.pem
diff --git a/libraries/MCUboot/default_keys/ecdsa-p256-encrypt-pub-key.pem b/libraries/MCUboot/default_keys/ecdsa-p256-encrypt-pub-key.pem
new file mode 100644
index 000000000..b23dadbcc
--- /dev/null
+++ b/libraries/MCUboot/default_keys/ecdsa-p256-encrypt-pub-key.pem
@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEaskgTJbWiejRblEEAobolQsixMmV
+Bk/1G/bQ44PZ0YFmbvIHOwPb5NHefENwjaKJ6xv6vgJeXKAS3CMxweA3sA==
+-----END PUBLIC KEY-----
diff --git a/libraries/MCUboot/default_keys/ecdsa-p256-signing-key.pem b/libraries/MCUboot/default_keys/ecdsa-p256-signing-priv-key.pem
similarity index 100%
rename from libraries/MCUboot/default_keys/ecdsa-p256-signing-key.pem
rename to libraries/MCUboot/default_keys/ecdsa-p256-signing-priv-key.pem
diff --git a/libraries/MCUboot/default_keys/ecdsa-p256-signing-pub-key.pem b/libraries/MCUboot/default_keys/ecdsa-p256-signing-pub-key.pem
new file mode 100644
index 000000000..4337f3bb5
--- /dev/null
+++ b/libraries/MCUboot/default_keys/ecdsa-p256-signing-pub-key.pem
@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE1RY1JsM7rU1njkMkxJjpay6+DaPx
+9JeAezEyB9mVpxdXaUN76ciq0AoMhgvjf5mIUcT5Ipi+Xqr9kDyidBhJBQ==
+-----END PUBLIC KEY-----