sodium_crypto_kdf_derive_from_key

    (PHP 7 >= 7.2.0, PHP 8)

    sodium_crypto_kdf_derive_from_key — Derive a subkey

    说明

    sodium_crypto_kdf_derive_from_key(
        int $subkey_length,
        int $subkey_id,
        string $context,
        #[\SensitiveParameter] string $key
    ): string

    Derive a subkey from a root key and additional context.

    Similar to hash_hkdf().

    参数

    subkey_length

    Length of the key to return (in bytes)

    subkey_id

    Return the Nth subkey from a given root key. Useful for seeking.

    context

    Application-specific context.

    key

    The root key from which the subkey is derived.

    返回值

    A string of pseudorandom (raw binary) bytes.

    改进此页面

    了解如何改进此页面 • 提交拉取请求 • 报告一个错误
    ＋添加备注

    用户贡献的备注

    此页面尚无用户贡献的备注。
    To Top