首先,我看到有其他帖子提出了这个问题,但没有人像我一样遇到了同样的问题,即 signature.verify()
意外地返回了 false
。
这是我的代码:
private static String encriptar(String xmlSolicitud, PrivateKey privateKey)
throws Exception {
Signature signature=Signature.getInstance("SHA1withRSA");
signature.initSign(privateKey);
signature.update(xmlSolicitud.getBytes(Charset.forName("UTF-8")));
byte[] signatureValue = signature.sign();
String response = Base64.encode(signatureValue);
signature.initVerify(keyReader.publicKeyRead(Reference.rutaPublicKeyTest));
System.out.println(signature.verify(signatureValue));
return response;
}
如果需要,以下是我读取密钥的方法:
public static PrivateKey privateKeyRead(String filename)
throws IOException, NoSuchAlgorithmException, InvalidKeySpecException {
File f = new File(filename);
FileInputStream fis = new FileInputStream(f);
DataInputStream dis = new DataInputStream(fis);
byte[] keyBytes = new byte[(int)f.length()];
dis.readFully(keyBytes);
dis.close();
PKCS8EncodedKeySpec spec =
new PKCS8EncodedKeySpec(keyBytes);
KeyFactory kf = KeyFactory.getInstance("RSA");
return kf.generatePrivate(spec);
}
public static PublicKey publicKeyRead(String filename)
throws Exception {
File f = new File(filename);
FileInputStream fis = new FileInputStream(f);
DataInputStream dis = new DataInputStream(fis);
byte[] keyBytes = new byte[(int)f.length()];
dis.readFully(keyBytes);
dis.close();
X509EncodedKeySpec spec =
new X509EncodedKeySpec(keyBytes);
KeyFactory kf = KeyFactory.getInstance("RSA");
return kf.generatePublic(spec);
}