PHP openssl_pkey_get_private() 函数用法及示例

PHP OpenSSL 函数手册

openssl_pkey_get_private()函数用于获取私钥。

定义和用法

openssl_pkey_get_private()函数将返回您的私钥。

函数openssl_pkey_get_private()从给定的公钥/私钥返回私钥。例如.pem文件中的内容。

语法

   openssl_pkey_get_private ( mixed $key [, string $passphrase = "" ] ) : resource

参数

返回值

如果没有错误，PHP openssl_pkey_get_private()函数将返回资源标识符。如果密钥生成失败，它将返回false。

PHP版本

此函数将从大于5.0.0的PHP版本开始工作。

实例1

openssl_pkey_get_private()的工作：

<?php
       //生成新的私钥(和公钥)对
	$privkey = openssl_pkey_new();
	openssl_pkey_export($privkey, $yourprivatekey);
	$testprivatekey = openssl_pkey_get_private($yourprivatekey);
	if ($testprivatekey === false) {
		var_dump(openssl_error_string());
	} else {
		var_dump($testprivatekey);
	}
?>

这将产生以下结果：

resource(3) of type (OpenSSL key)

实例2

openssl_pkey_get_private() 和 openssl_pkey_get_details()的工作-

<?php
   $privkey = openssl_pkey_new();
	openssl_pkey_export($privkey, $yourprivatekey);
	$testprivatekey = openssl_pkey_get_private($yourprivatekey);
	if ($testprivatekey === false) {
      var_dump(openssl_error_string());
	} else {
		//var_dump($testprivatekey);
		$key_details = openssl_pkey_get_details($testprivatekey);
		print_r($key_details);	
	}
?>

这将产生以下结果：

Array
(
    [bits] => 2048
    [key] => -----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnO1F0Gt03mgxLcDpRxlm
VEh8sfIfan5o11EcoLaEwaTyKgMNm7A4Rs9LcG3fwkNjXo8XNRQv6OSrhl8y00AX
+cPUb78Qp/K3INmyXr8UUVWy0BT+Rxq5kez1TmZhpITxUYLScEL8DPcghFyfstRa
5hP8hc0cwYM6N4ieOlXIxrdmbzTn92MeyiTstTvHxt8aGKbSdpmksWyNeqke22kM
9pBfEsf98XFh5HoQBQaQF6GXL5y00PWIdki7DTzYtXXPRGcQl/53M5HrGGdP0kGS
uD4YOFXRWYtQR1ZYLa4Ej+BP0eOpfxXiME0aaH1/2iWqyi+bsvkdgFbu92j5ptsr
yQIDAQAB
-----END PUBLIC KEY-----

    [rsa] => Array
        (
            [n] => Ekth1-GfTH|j~hQ*
8FKpmCc^5/_2@o ^QUGNfaQpB \Z:7:Ufo4c$;vlzi_qaz/vH
<uDgw3gOA>8UYPGVX-O0Mh}%/Vh+
            [e] => 
            [d] => MKC|Y55}ZR0;SIVM0LwrR|CdW}#v[9iZI1&!A;8K%}`@
}n	b]KL#~Sg' 81!2R]`vl&Z@-q7u#.d]*Z-'| ?M
jA
            [p] => *&5IXMU$u'd,$xiR1ACxi`%FR5
!aCt^f$V+]v"+=IwRN<Pe
3-"^|_-llD,=26XGg5@}qT.jA#m,>#YN},pk}g
            [dmp1] => 
l5o5Lh)I+DnJ!ycP1
=u>&h-HTKj;um

oO\e.
X%s_|Za3z$\n1N1uj)z
            [dmq1] => n[<t^P)F@ni
gH(@#s!+$D]{Il[$>i	q|$GI'R^c
"e"k
            [iqmp] => Rij	a6W#:#bS?'OSr#C87])4Z`w.ay@	psXP.{o9hBqEUn	&StE
        )

    [type] => 0
)

实例3

使用密码的openssl_pkey_get_private()工作：

<?php
   $privkey = openssl_pkey_new();
	openssl_pkey_export($privkey, $testkey, 'helloworld');
	$testprivatekey = openssl_pkey_get_private($testkey, 'helloworld');
	if ($testprivatekey === false) {
		var_dump(openssl_error_string());
	} else {
		//var_dump($testprivatekey);
		$key_details = openssl_pkey_get_details($testprivatekey);
		print_r($key_details);	
	}
?>

这将产生以下结果：

Array
(
    [bits] => 2048
    [key] => -----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs4HV+NM9dQ1ssuxb9PhM
64Yn8RHgv7YKK33nZudmk6SCOr9yRo7immp+bkaA0Lt/9ONJP+UF5VCltpdNdHLb
GDTo+TkK5NdTJDalON3L9EhB4cJeQaQQh59uJGf39Et0BJiYiINXsNdlc/pig1/Z
XDRyhEtqQ6nZJkOIIWO0gpdj9xj2naq/wy6Oas4p3/A7EvN5nB22xfEVIptKUZzi
YWV4Bs5y2OM3GRwVv+jLYKQ49S/ZKq7MpdCxcXC6YxyrlEIz4PL9cWRtybK3BINv
JnCWrfWRhUtlAY/CvfXrq2PhXwHVcebsDOPob6A71TcZMirxFZVyqkC+4rGX+5be
PwIDAQAB
-----END PUBLIC KEY-----

    [rsa] => Array
        (
            [n] => =u
l[L'
+}ff:rFj~nFлI?PMtr49
S$68HA^An$gKtWesb_\4rKjC&C!cc.j);y"JQaexr7`8/*бqpcB3qdmo&pKe 1/2 c_qo;72*r@?
            [e] => 
            [d] => ee$%
sQEUADBu34$v#P\uD(zw+za5XqP^w%O+3]+o3FM*Z^Lk/Ty/;)sBNp5@x,8z2#SyMoXc.;K qsLLD
^"j*=Io{7`a{lB#\
            [p] => àtY@[Nnpf	?7/\y<ox,(損iwXP5@s BDC| *JH/|`+3]oc?fIZe`C>U|":U^Lg	u|@zF%6X/
'U+_Yh:59}D&Gc
            [dmp1] => i*/
U6
|>3HPhN.G9cxj*!0R:9E(Z$&&7>9.IhEz/,QR"';^xq
            [dmq1] => |w`
3bAZt.8Q]FiI2){<G^tuMb4IYLES8a!6&Q(^'E
            [iqmp] => \p5N
$WCj |{>dY
f93$rF(ON> %`(
&op }=C+b"#G"0T.G`t^\7
        )

    [type] => 0
)

实例4

使用.pem文件处理openssl_pkey_get_private()：

<?php
        //创建私钥
	$privkey = openssl_pkey_new();
	openssl_pkey_export_to_file($privkey, 'C:/xampp/htdocs/modules/openssl/fortesting.pem');
	
	//使用带有私钥的.pem文件。
	$testprivatekey = openssl_pkey_get_private(file_get_contents('C:/xampp/htdocs/modules/openssl/fortesting.pem'));
	if ($testprivatekey === false) {
		var_dump(openssl_error_string());
	} else {
		//var_dump($testprivatekey);
		$key_details = openssl_pkey_get_details($testprivatekey);
		print_r($key_details);	
	}
?>

这将产生以下结果：

Array
(
    [bits] => 2048
    [key] => -----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqaka1+sKh3D4HgIDzER6
vr/DI5u6h1QF6Xm1q/nOduTn0vlx4bLv+QEbcElXV1Bss4W7wOZRkMIOwj4xcT+e
PGKaN95JUyxC/NQ13+F6K5yUk0ish36BVusrHt0wdZj28f63gHm824D0yDnn+aJr
s+vSuMppErUD/i0QUFnO86ypHi/zeb+QBEif4a82RtfwRIVUtE/Sxy08ct+1ogA9
pdBd47elLmcekz/dtSUqpUjLj5SNojS7AJCZ5LNxnLOzN3ryCQXGaAn8KHQ284Xs
jlYBjSjXFLY/1fLDYDpQGOApoBj2vK9Io8MxFU3uss79Ezb6LwKZG6CmzlbldBrJ
YQIDAQAB
-----END PUBLIC KEY-----

    [rsa] => Array
        (
            [n] => 
pDz#TyvqpIWWPlQ>1q?<b7is,b5z+h~v+0uy9ki-py yh6fdto- 
            [d] => 9:Y"*xu&gt &"{!Pxrhn#!c%u
‘x7z&|ǔv~IXT?[w"=em1R_JH/hX.E&&':/:.Izdx@6)i1Lz"X>]tRhg!8Y9Gr^S9zz~jo_
            [p] => +iym:#`BFBj>f2W%eIAn .o	v`tggaL%
L[\6`sx]~bUfF/Oy6+~v7u
            [q] => ǎu(.LloGcx@4r `iiXv'33Xc_m8M5#t"^{j	vSLiXmhI8
1t
            [dmp1] => 6$5EgQ1F"8yV`\A{0
ym6dUI<8f\"KKhja5z
w'mF9nvrθFP]i%L1m'Y4
@lth7
            [dmq1] => il5w*eG~z2{*"`yr%@lqDeUz
s.[
Gl_"ah8cH4N7$25?L
            [iqmp] => 9"l@O[I)}K6A/f5S	\u>C z]B-ry/DwH|g:8s(BEo`0
)

PHP OpenSSL 函数手册