Const
The POLY1305_TAG_LENGTH
is set to 16 bytes (128 bits), which is the standard size for the
Poly1305 authentication tag in XChaCha20-Poly1305 encryption. This tag length ensures
a strong level of security for message authentication, verifying the integrity and
authenticity of the data during decryption.
Constant defining the length of the authentication tag in bytes for XChaCha20-Poly1305.