我在stackoverflow上看到了一些类似的问题,但遗憾的是我无法找到解决方案。我相信我非常接近,但却错过了正确的步骤。
我正在使用我的比利时EID卡,它上面有签名证书,我可以用来签署PDF。
使用Maven库:
be.fedict.commons-eid - 0.6.5
com.itextpdf - 5.5.10
org.bouncycastle - 1.55
代码如下:
BeIDCardManager manager = new BeIDCardManager();
manager.addBeIDCardEventListener(new BeIDCardEventsListener() {
public void eIDCardInserted(CardTerminal arg0, BeIDCard arg1) {
log.info("Inserted");
try {
dostuffwithmycard(arg1);
} catch (Exception e) {
e.printStackTrace();
}
}
}
...
protected static void dostuffwithmycard(BeIDCard card) throws IOException, DocumentException, GeneralSecurityException {
Security.addProvider(new BeIDProvider());
KeyStore keyStore = KeyStore.getInstance("BeID");
keyStore.load(null, null);
PrivateKey authnPrivateKey = (PrivateKey) keyStore.getKey("Authentication", null);
Signature signature = Signature.getInstance("SHA1withRSA");
signature.initSign(authnPrivateKey);
PdfReader reader = new PdfReader("C:\\Untitled.pdf");
FileOutputStream os = new FileOutputStream( "C:\\temp\\Signed.pdf");
PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0');
PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
appearance.setReason("Okay");
appearance.setLocation("Home");
appearance.setVisibleSignature(new Rectangle(36,748,144,780), 1, "sig");
ExternalDigest digest = new BouncyCastleDigest();
ExternalSignature sig = new PrivateKeySignature(authnPrivateKey, "SHA1", "BeIDProvider");
MakeSignature.signDetached(appearance, digest, sig, keyStore.getCertificateChain("Signature"), null, null, null, 0, CryptoStandard.CMS);
}
我基本上使用反复试验构建了这段代码。我已经得到它,以便我可以实际将我的签名放在PDF上(通过输入PIN解锁我的签名证书后),但是当我打开PDF时,它告诉我签名无效。我可以在签名上看到我的名字,但是当我尝试在Adobe Reader中验证它时,我会收到错误 0x2726
一定有些事我做错了,但我找不到明确的理由。
答案 0 :(得分:1)
您正在使用keyStore.getKey("Authentication", null)
获取密钥,keyStore.getCertificateChain("Signature")
获取认证链。看起来你的卡有两个证书。然后,Signature
证书的公钥将与Authentication
证书的私钥
尝试将PrivateKey authnPrivateKey = (PrivateKey) keyStore.getKey("Authentication", null);
替换为
PrivateKey authnPrivateKey = (PrivateKey) keyStore.getKey("Signature", null);