我创建了一个 P8 格式的私钥并使用 Java 签署了数据,并尝试使用 PHP 中的公钥验证它,但失败了。
我使用 openssl 命令创建了 p8 文件
openssl pkcs8 -topk8 -inform PEM -outform DER -in myprivate.in.key -out myprivate.in.key.p8 -nocrypt
并使用
对 Json 数据进行签名public byte[] sign(String data, String privateKeyFilePath) throws InvalidKeyException, NoSuchAlgorithmException, InvalidKeySpecException, IOException, SignatureException {
byte[] returnVal = null;
Signature signature = Signature.getInstance(RSA_SHA_256);
PrivateKey privateKey = getPrivateKey(privateKeyFilePath);
signature.initSign(privateKey);
signature.update(data.getBytes());
returnVal = signature.sign();
return returnVal;
}
但是当我尝试使用 openssl 命令在 PHP 中使用公共证书验证它时,它失败了
$cert_path = file_get_contents(storage_path('certificates/my_in.cer'));
$pub_key = openssl_get_publickey($cert_path);
$keyData = openssl_pkey_get_details($pub_key);
$pub_key = $keyData['key'];
// $verify = openssl_x509_verify()
$verify = openssl_verify($dataSigned, $signatureDecoded, $pub_key, 'sha256WithRSAEncryption');
我做错了什么,还有什么方法可以在 php 中使用 p8 键对数据进行签名!
答案 0 :(得分:1)
按照这个过程,一切正常。也许对你有用?
使用 openssl 生成密钥:
# Generate PK
openssl genpkey -algorithm RSA \
-pkeyopt rsa_keygen_bits:2048 \
-pkeyopt rsa_keygen_pubexp:65537 | \
openssl pkcs8 -topk8 -nocrypt -outform der > rsa-2048-private-key.p8
# Convert your PKCS#8 file to a plain private key
openssl pkcs8 -nocrypt -in rsa-2048-private-key.p8 -inform DER -out rsa-2048-private-key.pem
# Generate pub key
openssl rsa -in rsa-2048-private-key.pem -pubout -out rsa-2048-public-key.pem
测试pkey和签名数据(index.php):
<?php
$privateKeyFile="file://".__DIR__.DIRECTORY_SEPARATOR."rsa-2048-private-key.pem";
$publicKeyFile="file://".__DIR__.DIRECTORY_SEPARATOR."rsa-2048-public-key.pem";
// Data to sign
$data = 'Hello world!';
// Test on get private key
$pkeyid = openssl_pkey_get_private($privateKeyFile);
if ($pkeyid === false) {
var_dump(openssl_error_string());
}else{
var_dump($pkeyid);
}
// Sign data
openssl_sign($data, $signature, $pkeyid);
// Free memory
openssl_free_key($pkeyid);
// Read pub key
$pubkeyid = openssl_pkey_get_public($publicKeyFile);
// Test if sign is ok
$ok = openssl_verify($data, $signature, $pubkeyid);
if ($ok == 1) {
echo "Sign OK";
} elseif ($ok == 0) {
echo "Sign NOK";
} else {
echo "Sign check error";
}
// Free memory
openssl_free_key($pubkeyid);
php -S localhost:8000
,http://localhost:8000,返回:
resource(2) of type (OpenSSL key) Sign OK