sodium_crypto_core_ristretto255_scalar_invert
PHP function
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(PHP 8 >= 8.1.0)
Inverts a scalar value
Description
sodium_crypto_core_ristretto255_scalar_invert(string $s): string
Inverts a scalar value. Available as of libsodium 1.0.18.
Func
Parameters
sScalar value.
Return Values
Returns a 32-byte random String.
Examples
sodium_crypto_core_ristretto255_scalar_invert() example
php
<?php
$foo = sodium_crypto_core_ristretto255_scalar_random();
$inverted = sodium_crypto_core_ristretto255_scalar_invert($foo);
$reInverted = sodium_crypto_core_ristretto255_scalar_invert($inverted);
var_dump(hash_equals($foo, $reInverted));
?>The above example will output:
output
bool(true)