Examples of com.nimbusds.jose.JWSObject.verify()

com.nimbusds.jose.JWSObject.verify()
Checks the signature of this JWS object with the specified verifier. The JWS object must be in a {@link State#SIGNED signed} state. @param verifier The JWS verifier. Must not be {@code null}. @return {@code true} if the signature was successfully verified, else {@code false}. @throws IllegalStateException If the JWS object is not in a {@link State#SIGNED signed} or{@link State#VERIFIED verified state}. @throws JOSEException If the JWS object couldn't be verified.

    // Initialise verifier
    BigInteger x = publicKey.getW().getAffineX();
    BigInteger y = publicKey.getW().getAffineY();
    JWSVerifier verifier = new ECDSAVerifier(x, y);


    boolean verified = jwsObject.verify(verifier);


    assertTrue("EC256 signature verified", verified);
  }

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    // Initialise verifier
    BigInteger x = publicKey.getW().getAffineX();
    BigInteger y = publicKey.getW().getAffineY();
    JWSVerifier verifier = new ECDSAVerifier(x, y);


    boolean verified = jwsObject.verify(verifier);


    assertTrue("EC384 signature verified", verified);
  }

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    // Initialise verifier
    BigInteger x = publicKey.getW().getAffineX();
    BigInteger y = publicKey.getW().getAffineY();
    JWSVerifier verifier = new ECDSAVerifier(x, y);


    boolean verified = jwsObject.verify(verifier);


    assertTrue("EC512 signature verified", verified);
  }

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    BigInteger x = publicKey.getW().getAffineX();
    BigInteger y = publicKey.getW().getAffineY();
    JWSVerifier verifier = new ECDSAVerifier(x, y);
    verifier.getIgnoredCriticalHeaderParameters().add("exp");


    boolean verified = jwsObject.verify(verifier);


    assertTrue("Verified signature", verified);


    assertEquals("State check", JWSObject.State.VERIFIED, jwsObject.getState());
  }

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    BigInteger x = publicKey.getW().getAffineX();
    BigInteger y = publicKey.getW().getAffineY();
    JWSVerifier verifier = new ECDSAVerifier(x, y);


    boolean verified = jwsObject.verify(verifier);


    assertFalse("Verified signature", verified);


    assertEquals("State check", JWSObject.State.SIGNED, jwsObject.getState());
  }

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    ECDSAVerifier verifier = new ECDSAVerifier(new BigInteger(1, x), new BigInteger(1, y));
    assertEquals("X check", new BigInteger(1, x), verifier.getX());
    assertEquals("Y check", new BigInteger(1, y), verifier.getY());


    boolean verified = jwsObject.verify(verifier);


    assertTrue("Verified signature", verified);


    assertEquals("State check", JWSObject.State.VERIFIED, jwsObject.getState());
  }

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    assertEquals("State check", JWSObject.State.SIGNED, jwsObject.getState());


    JWSVerifier verifier =  new ECDSAVerifier(new BigInteger(1, x), new BigInteger(1, y));


    boolean verified = jwsObject.verify(verifier);


    assertTrue("Signature check", verified);


    assertEquals("State check", JWSObject.State.VERIFIED, jwsObject.getState());
  }

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    JWSVerifier verifier = new MACVerifier(sharedKey.getBytes());
    
    boolean verifiedSignature = false;
    
    try {
      verifiedSignature = jwsObject.verify(verifier);
      
    } catch (JOSEException e) {
    
      System.err.println("Couldn't verify signature: " + e.getMessage());
    }

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    // Initialise verifier
    BigInteger x = publicKey.getW().getAffineX();
    BigInteger y = publicKey.getW().getAffineY();
    JWSVerifier verifier = new ECDSAVerifier(x, y);


    boolean verified = jwsObject.verify(verifier);


    assertTrue("EC256 signature verified", verified);
  }

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    // Initialise verifier
    BigInteger x = publicKey.getW().getAffineX();
    BigInteger y = publicKey.getW().getAffineY();
    JWSVerifier verifier = new ECDSAVerifier(x, y);


    boolean verified = jwsObject.verify(verifier);


    assertTrue("EC384 signature verified", verified);
  }

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