Pre-requisite

This framework needs at least:

• ​,

• GMP extension.

• MBString extension.

Depending on the algorithms you using, other PHP extensions may be required (e.g. OpenSSL).

Please also consider the following optional requirements:

• If you intent to use EdDSA or ECDH-ES algorithm with Ed25519/X25519 curves on PHP 7.1, please install this third party extension​