(PHP 8 >= 8.1.0)
sodium_crypto_core_ristretto255_scalar_mul — Multiplies a scalar value
sodium_crypto_core_ristretto255_scalar_mul(string $x, string $y): string
Multiplies a scalar value. Available as of libsodium 1.0.18.
This function is currently not documented; only its argument list is available.
xScalar, representing the X coordinate.
yScalar, representing the Y coordinate.
Returns a 32-byte random string.
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https://www.php.net/manual/en/function.sodium-crypto-core-ristretto255-scalar-mul.php