sodium_crypto_scalarmult

Function • Params and return types changed in PHP 8.0

Compute a shared secret given a user's secret key and another user's public key.

PHP 5
PHP 7.0-7.1
PHP 7.2
Added
PHP 7.3-7.4
PHP 8.0
Improved
PHP 8.1-8.2
PHP 8.3-8.4
PHP 8.5
PHP 8.6

sodium_crypto_scalarmult Function synopsis

sodium_crypto_scalarmult(string $n, string $p): string

Parameters

$n

Typestring

scalar, which is typically a secret key

$p

Typestring

point (x-coordinate), which is typically a public key

Return value

Typestring

A 32-byte random string.

Changes to the sodium_crypto_scalarmult Function

PHP 8.0

  • Return type added: string
  • Parameter name of parameter #1 changed: $string_1 to $n
  • Parameter type added for parameter #1 ($n): string
  • Parameter name of parameter #2 changed: $string_2 to $p
  • Parameter type added for parameter #2 ($p): string
- sodium_crypto_scalarmult($string_1, $string_2)
+ sodium_crypto_scalarmult(string $n, string $p): string

PHP 7.2

  • Function added

sodium_crypto_scalarmult Function Availability

PHP VersionAvailability
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 Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported No
PHP 7.0Unsupported No
PHP 5.6Unsupported No
PHP 5.5Unsupported No
PHP 5.4Unsupported No
PHP 5.3Unsupported No