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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

說(shuō)明

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

Elliptic Curve Diffie-Hellman. Calculates scalar n times point p, on an elliptic curve.

參數

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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