# sodium_crypto_box_keypair

(PHP 7 >= 7.2.0, PHP 8)

sodium_crypto_box_keypair — Randomly generate a secret key and a corresponding public key

### 说明

sodium_crypto_box_keypair(): string

Generates a secret key and a public key as one string.

To get the secret key out of this unified keypair string, see sodium_crypto_box_secretkey(). To get the public key out of this unified keypair string, see sodium_crypto_box_publickey().

### 参数

此函数没有参数。

### 返回值

One string containing both the X25519 secret key and corresponding X25519 public key.

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