sodium_crypto_core_ristretto255_is_valid_point

Function • Added in PHP 8.1

Determines if a point on the ristretto255 curve.

PHP 5

PHP 7

PHP 8.0

Added

PHP 8.2

PHP 8.3-8.4

PHP 8.5

PHP 8.6

`sodium_crypto_core_ristretto255_is_valid_point` Function synopsis

sodium_crypto_core_ristretto255_is_valid_point(string $s): bool

Parameters

`$s`

Typestring

An Elliptic-curve point.

Return value

Typebool

Returns true if $s is on the ristretto255 curve, false otherwise.

Changes to the `sodium_crypto_core_ristretto255_is_valid_point` Function

PHP 8.1

Function added

`sodium_crypto_core_ristretto255_is_valid_point` Function Availability

PHP Version	Availability
PHP 8.6Upcoming Release	Yes
PHP 8.5Supported (Latest)	Yes
PHP 8.4Supported	Yes
PHP 8.3Supported	Yes
PHP 8.2Security-Fixes Only	Yes
PHP 8.1Security-Fixes Only	Yes
PHP 8.0Unsupported	No
PHP 7.4Unsupported	No
PHP 7.3Unsupported	No
PHP 7.2Unsupported	No
PHP 7.1Unsupported	No
PHP 7.0Unsupported	No
PHP 5.6Unsupported	No
PHP 5.5Unsupported	No
PHP 5.4Unsupported	No
PHP 5.3Unsupported	No