sodium_crypto_box_seed_keypair

Function • Params and return types changed in PHP 8.0

Deterministically derive the key pair from a single key.

PHP 5

PHP 7.0-7.1

Added

PHP 7.3-7.4

Improved

PHP 8.1

PHP 8.2

PHP 8.3

PHP 8.4

PHP 8.5

`sodium_crypto_box_seed_keypair` Function synopsis

sodium_crypto_box_seed_keypair(string $seed): string

Parameters

`$seed`

Typestring

Some cryptographic input. Must be 32 bytes.

Return value

Typestring

X25519 Keypair (secret key and public key).

Changes to the `sodium_crypto_box_seed_keypair` Function

PHP 8.0

Return type added: string
Parameter name of parameter #1 changed: $key to $seed
Parameter type added for parameter #1 ($seed): string

- sodium_crypto_box_seed_keypair($key)
+ sodium_crypto_box_seed_keypair(string $seed): string

PHP 7.2

Function added

`sodium_crypto_box_seed_keypair` Function Availability

PHP Version	Availability
PHP 8.5Future Release	Yes
PHP 8.4Upcoming Release	Yes
PHP 8.3Supported (Latest)	Yes
PHP 8.2Supported	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