Databases
StackOverflow2013
Postsdbo
POsignature.verify() Always returns False?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POsignature.verify() Always returns False?
    primarykey
    data
    text
    <p>I found 2 similar questions and tried to run the code given as solution as those said answers are not working out for me so raising the question with snippet of code. </p> <ol> <li><a href="https://stackoverflow.com/questions/3151407/signature-verify-always-returns-false">signature.verify() Always returns False</a></li> <li><a href="https://stackoverflow.com/questions/11312619/signature-verify-is-always-returning-false">Signature.verify() is always returning false</a></li> </ol> <p>Both's said answer is not working so please DONT treat this question as DUPLICATE</p> <p>here is my code.</p> <pre><code>import com.sun.org.apache.xml.internal.security.utils.Base64; import java.io.FileInputStream; import java.security.PublicKey; import java.security.Signature; import java.security.cert.CertificateFactory; import java.security.cert.X509Certificate; import xmlread.ReadXMLFile; public class CertificateTest { public static void main(String[] sdd) { try{ FileInputStream fin = new FileInputStream("pub.arm"); CertificateFactory f = CertificateFactory.getInstance("X.509"); X509Certificate certificate = (X509Certificate) f.generateCertificate(fin); PublicKey pk = certificate.getPublicKey(); byte[] sign = "Qn/rlJRdZAdlPpu1UmmjE+rup8rv8d6XlS9MngAorzYDXefw0vWEP4eHil3YHoA1JUkoQQOgmw0w0QZFmrQbS33sa2t76iuqXI7EtnAPU798K+hEXP88tsYDWJNJFo9DdhkGltP5dQ02DN030Q1w58aTF+yZFfY1KVOPx2bIoL8=".getBytes(); Signature sig = Signature.getInstance("SHA1withRSA"); sig.initVerify(pk); sig.update(Base64.decode(ReadXMLFile.getString().getBytes())); boolean verifies = sig.verify(Base64.decode(ReadXMLFile.getString().getBytes())); System.out.println("signature verifies: " + verifies); }catch(Exception ex){} } } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USAshish Agarwal
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COThat's because your code is wrong, and you're trying to compare the RSA-encrypted SHA1 digest of the base64-decoded `ReadXMLFile.getString()` to itself. Did you mean to do `sig.verify(Base64.decode(sign))` ?
      singulars
      1. POsignature.verify() Always returns False?
      1. USoldrinb
    2. COActually According to algo, server is Encoding sign in BASE64 before sending to server. That's the reason I am decoding it before verifying.
      singulars
      1. POsignature.verify() Always returns False?
      1. USAshish Agarwal
    3. COYes, but the problem is that you're not comparing the signature of the data with the data in `sign`.
      singulars
      1. POsignature.verify() Always returns False?
      1. USoldrinb
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload