Hello,
Your elastic.key is encrypted and encoded with PKCS#8. Unfortunately, we do not currently support PKCS#8 encoded encrypted (password protected) private keys. We support
- unencrypted PKCS#8 encoded private keys
- unencrypted PKCS#1 encoded (also known as OpenSSL format) keys
- encrypted(password protected) PKCS#1 encoded (also known as OpenSSL format) keys
- PKCS#12 keystores (possible password protected) that contain private keys and certificates
A workaround for now would be to convert your key to PKCS#1
openssl rsa -des3 -in elastic.key -out elastic-pkcs1.key
and follow the prompts from entering the password to protect the key. You can change the algorithm used for encrypting the key (-des3 as in triple DES) to -aes128 , -aes192 or -aes256 if you prefer.