openssl_spki_verify
(PHP 5 >= 5.6.0, PHP 7)
openssl_spki_verify — Verifies a signed public key and challenge
説明
string openssl_spki_verify
( string
&$spkac
)Validates the supplied signed public key and challenge
パラメータ
-
spkac -
Expects a valid signed public key and challenge
返り値
Returns a boolean on success or failure.
エラー / 例外
Emits an E_WARNING level error if an invalid argument
is passed via the spkac parameter.
例
例1 openssl_spki_verify() example
Validates an existing signed public key and challenge
<?php
$pkey = openssl_pkey_new('secret password');
$spkac = openssl_spki_new($pkey, 'challenge string');
if (openssl_spki_verify(preg_replace('/SPKAC=/', '', $spkac))) {
echo $spkac;
} else {
echo "SPKAC validation failed";
}
?>
例2 openssl_spki_verify() example from <keygen>
Validates an existing signed public key and challenge issued from the <keygen> element
<?php
if (openssl_spki_verify(preg_replace('/SPKAC=/', '', $_POST['spkac']))) {
echo $spkac;
} else {
echo "SPKAC validation failed";
}
?>
<keygen name="spkac" challenge="challenge string" keytype="RSA">
参考
- openssl_spki_new() - Generate a new signed public key and challenge
- openssl_spki_export_challenge() - Exports the challenge assoicated with a signed public key and challenge
- openssl_spki_export() - Exports a valid PEM formatted public key signed public key and challenge
- openssl_md_method()
- openssl_csr_new() - CSR を作成する
- openssl_csr_sign() - 他の CERT（あるいは自分自身）で証明書をサインする
忘却曲線を使ってこの関数を確実に記憶に残す
