This framework needs at least:

  • PHP 7.2+,

  • 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

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