Broken key (derived from RFC 9500 example key)

-----BEGIN RSA PRIVATE KEY-----
MIICXQIBAAKBgQCw0YNSqI9T1VFvRsIOejZ9feiKz1SgGfbe9Xq5tEzt2yJCsbyg

//

N59pra9UdVQw9jxCU9G7eMyb0jJkNACAuEwakX3gi27b
-----END RSA PRIVATE KEY-----