diff --git a/false_negatives/pkcs8-encrypted-key.pem b/false_negatives/pkcs8-encrypted-key.pem
new file mode 100644
index 0000000..2dc1cff
--- /dev/null
+++ b/false_negatives/pkcs8-encrypted-key.pem
@@ -0,0 +1,10 @@
+-----BEGIN ENCRYPTED PRIVATE KEY-----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-----END ENCRYPTED PRIVATE KEY-----
diff --git a/false_negatives/pkcs8-generic-key.pem b/false_negatives/pkcs8-generic-key.pem
new file mode 100644
index 0000000..df87a1c
--- /dev/null
+++ b/false_negatives/pkcs8-generic-key.pem
@@ -0,0 +1,9 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC7o4qne60TB3pE
+sDmAdmA7GXQlP5U2MNpnSk3OaVB6R4RLWGMXF3mP9S6L8KVh5Fq4sMmO3q5Awms
+kN2GnWBLYL3QDjTzYEJH8hVROoLFkK2QXKVQiE5RYVBh3MkJq9oh5LoN3dVf7nKv
+DLoVJVFq5R8vX3Y6LD9zh3v3eK0G5gThU3i2K9nL2hLW8kWC0RfoqO3kJ8L6Nvo
+9TpY3GnCq2F8kLJ7d5HmN9v4W6sQ1xP8rA3bK7yM5cD2gE4fL6hN8oR3tU7wS9v
+P5mA2nQ4sK8xG6bH1cN7fR3vL9tY5qW2eD8gJ4mS6oP1uA7hK3nM8bC5xV9yT
+R4wE1sF7gQ2dL6mH3oN5vJ9pK4cA8bS7tU1xW6yR9fG2hL5mP3vT8kQ4sE7n
+-----END PRIVATE KEY-----