對於我當前的項目,我必須將簽名從PHP發送到Java應用程序。我正在使用Crypt/RSA來簽署我的數據。SHA256withRSA來自PHP的簽名驗證來自JAVA
爲了測試我剛剛簽署的「ABC」與下面的代碼:
$rsa = new Crypt_RSA();
$plaintext = 'abc';
$rsa->loadKey("MIICXgIBAAKBgQDjh+hNsqJe566JO0Sg7Iq5H1AdkauACdd8QMLp9YNY0HPslVH0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");
$rsa->setHash("sha256");
$signature = $rsa->sign($plaintext);
$signature_encoding = mb_convert_encoding($signature, "UTF-8");
error_log("signature encoded in UTF-8 :" . $signature_encoding);
$encoded_sign = base64_encode($signature_encoding);
error_log("encoded sign for abc: " . $encoded_sign);
我可以驗證從PHP代碼簽名。但是從JAVA驗證時,我並沒有成功。下面是Java代碼,做了驗證操作:
public boolean verify(String signed, String data, PubKey pubKey) throws Exception{
PublicKey publicKey = jceProvider.generateRSAPublicKeyFromX509(
base64.decode(pubKey.getEncodedKey())
);
byte[] signature = base64.decode(signed);
byte[] verifier = data.getBytes(Charset.forName("UTF-8"));
return jceProvider.verify(signature, verifier, publicKey);
}
public class JCEProvider {
public boolean verify (byte[] signature, byte[] verifier, PublicKey publicKey) throws Exception{
Signature rsaSignature = Signature.getInstance("SHA256withRSA");
rsaSignature.initVerify(publicKey);
rsaSignature.update(verifier);
return rsaSignature.verify(signature);
}
我不認爲這是因爲鑰匙,我已經可以從PHP驗證它,因爲我以前告訴過。有一些我錯過了關於PHP編碼或字節流的東西,但我暫時失去了它。
任何幫助,將不勝感激。
它看起來像你用公鑰簽名,然後用公鑰進行驗證。您需要使用私鑰進行驗證。 – Polynomial
謝謝@Polynomial但長字符串是我的私鑰1024字節。 – LostMohican
請告訴我你沒有發佈你的*實際*私人密鑰在StackOverflow ... – Polynomial