sodium_crypto_scalarmult
(PHP 7 >= 7.2.0, PHP 8)
sodium_crypto_scalarmult — Compute a shared secret given a user's secret key and another user's public key
说明
sodium_crypto_scalarmult(string
$n
, string $p
): stringElliptic Curve Diffie-Hellman. Calculates scalar n times point p, on an elliptic curve.
参数
-
n
-
scalar, which is typically a secret key
-
p
-
point (x-coordinate), which is typically a public key
返回值
A 32-byte random string.
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