Examples with Signature org.mozilla.jss.crypto.Signature used on opensource projects

Example 1 with Signature

use of org.mozilla.jss.crypto.Signature in project jss by dogtagpki.

the class CertReqMsg method verify.

public void verify(CryptoToken token) throws SignatureException, InvalidKeyFormatException, NoSuchAlgorithmException, org.mozilla.jss.NotInitializedException, TokenException, java.security.InvalidKeyException, IOException {
    ProofOfPossession.Type type = pop.getType();
    if (type == ProofOfPossession.SIGNATURE) {
        POPOSigningKey sigkey = pop.getSignature();
        AlgorithmIdentifier alg = sigkey.getAlgorithmIdentifier();
        BIT_STRING sig_from = sigkey.getSignature();
        ByteArrayOutputStream bo = new ByteArrayOutputStream();
        certReq.encode(bo);
        byte[] toBeVerified = bo.toByteArray();
        PublicKey pubkey = null;
        CertTemplate ct = certReq.getCertTemplate();
        if (ct.hasPublicKey()) {
            SubjectPublicKeyInfo spi = ct.getPublicKey();
            pubkey = spi.toPublicKey();
        }
        SignatureAlgorithm sigAlg = SignatureAlgorithm.fromOID(alg.getOID());
        Signature sig = token.getSignatureContext(sigAlg);
        sig.initVerify(pubkey);
        sig.update(toBeVerified);
        if (sig.verify(sig_from.getBits())) {
            // success
            return;
        } else {
            throw new SignatureException("Signed request information does not " + "match signature in POP");
        }
    } else if (type == ProofOfPossession.KEY_ENCIPHERMENT) {
        POPOPrivKey keyEnc = pop.getKeyEncipherment();
        POPOPrivKey.Type ptype = keyEnc.getType();
        if (ptype == POPOPrivKey.THIS_MESSAGE) {
        // BIT_STRING thisMessage = keyEnc.getThisMessage();
        // This should be the same as from the archive control
        // It's verified by DRM.
        } else if (ptype == POPOPrivKey.SUBSEQUENT_MESSAGE) {
            new ChallengeResponseException("requested");
        }
    }
}

Example 2 with Signature

use of org.mozilla.jss.crypto.Signature in project jss by dogtagpki.

the class Certificate method verify.

/**
 * Verifies the signature on this certificate, using the given public
 * key and CryptoToken. Does not indicate the certificate is valid at
 * any specific time.
 */
public void verify(PublicKey key, CryptoToken token) throws NoSuchAlgorithmException, CertificateException, SignatureException, InvalidKeyException {
    try {
        Signature sig = token.getSignatureContext(SignatureAlgorithm.fromOID(info.getSignatureAlgId().getOID()));
        sig.initVerify(key);
        sig.update(infoEncoding);
        if (!sig.verify(signature)) {
            throw new CertificateException("Signature is invalid");
        }
    } catch (TokenException e) {
        throw new SignatureException("PKCS #11 token error: " + e.getMessage());
    }
}

Example 3 with Signature

use of org.mozilla.jss.crypto.Signature in project jss by dogtagpki.

the class SignerInfo method verifyWithAuthenticatedAttributes.

/**
 * Verifies a SignerInfo with authenticated attributes.  If authenticated
 * attributes are present, then two particular attributes must
 * be present: <ul>
 * <li>PKCS #9 Content-Type, the type of content that is being signed.
 *      This must match the contentType parameter.
 * <li>PKCS #9 Message-Digest, the digest of the content that is being
 *      signed. This must match the messageDigest parameter.
 * </ul>
 * After these two attributes are verified to be both present and correct,
 * the encryptedDigest field of the SignerInfo is verified to be the
 * signature of the contents octets of the DER encoding of the
 * authenticatedAttributes field.
 */
private void verifyWithAuthenticatedAttributes(byte[] messageDigest, OBJECT_IDENTIFIER contentType, PublicKey pubkey) throws NotInitializedException, NoSuchAlgorithmException, InvalidKeyException, TokenException, SignatureException {
    int numAttrib = authenticatedAttributes.size();
    if (numAttrib < 2) {
        throw new SignatureException("At least two authenticated attributes must be present:" + " content-type and message-digest");
    }
    // go through the authenticated attributes, verifying the
    // interesting ones
    boolean foundContentType = false;
    boolean foundMessageDigest = false;
    for (int i = 0; i < numAttrib; i++) {
        if (!(authenticatedAttributes.elementAt(i) instanceof Attribute)) {
            throw new SignatureException("Element of authenticatedAttributes is not an Attribute");
        }
        Attribute attrib = (Attribute) authenticatedAttributes.elementAt(i);
        if (attrib.getType().equals(CONTENT_TYPE)) {
            // content-type.  Compare with what was passed in.
            SET vals = attrib.getValues();
            if (vals.size() != 1) {
                throw new SignatureException("Content-Type attribute " + " does not have exactly one value");
            }
            ASN1Value val = vals.elementAt(0);
            OBJECT_IDENTIFIER ctype;
            try {
                if (val instanceof OBJECT_IDENTIFIER) {
                    ctype = (OBJECT_IDENTIFIER) val;
                } else if (val instanceof ANY) {
                    ctype = (OBJECT_IDENTIFIER) ((ANY) val).decodeWith(OBJECT_IDENTIFIER.getTemplate());
                } else {
                    // what the heck is it? not what it's supposed to be
                    throw new InvalidBERException("Content-Type authenticated attribute has unexpected" + " content type");
                }
            } catch (InvalidBERException e) {
                throw new SignatureException("Content-Type authenticated attribute does not have " + "OBJECT IDENTIFIER value");
            }
            // contentType parameter
            if (!ctype.equals(contentType)) {
                throw new SignatureException("Content-type in authenticated attributes does not " + "match content-type being verified");
            }
            // content type is A-OK
            foundContentType = true;
        } else if (attrib.getType().equals(MESSAGE_DIGEST)) {
            SET vals = attrib.getValues();
            if (vals.size() != 1) {
                throw new SignatureException("Message-digest attribute does not have" + " exactly one value");
            }
            ASN1Value val = vals.elementAt(0);
            byte[] mdigest;
            try {
                if (val instanceof OCTET_STRING) {
                    mdigest = ((OCTET_STRING) val).toByteArray();
                } else if (val instanceof ANY) {
                    OCTET_STRING os;
                    os = (OCTET_STRING) ((ANY) val).decodeWith(OCTET_STRING.getTemplate());
                    mdigest = os.toByteArray();
                } else {
                    // what the heck is it? not what it's supposed to be
                    throw new InvalidBERException("Content-Type authenticated attribute has unexpected" + " content type");
                }
            } catch (InvalidBERException e) {
                throw new SignatureException("Message-digest attribute does not" + " have OCTET STRING value");
            }
            // message digest being verified
            if (!byteArraysAreSame(mdigest, messageDigest)) {
                throw new SignatureException("Message-digest attribute does not" + " match message digest being verified");
            }
            // message digest is A-OK
            foundMessageDigest = true;
        }
    // we don't care about other attributes
    }
    if (!foundContentType) {
        throw new SignatureException("Authenticated attributes does not contain" + " PKCS #9 content-type attribute");
    }
    if (!foundMessageDigest) {
        throw new SignatureException("Authenticate attributes does not contain" + " PKCS #9 message-digest attribute");
    }
    SignatureAlgorithm sigAlg = SignatureAlgorithm.fromOID(digestEncryptionAlgorithm.getOID());
    // All the authenticated attributes are present and correct.
    // Now verify the signature.
    CryptoToken token = CryptoManager.getInstance().getInternalCryptoToken();
    Signature sig = token.getSignatureContext(sigAlg);
    sig.initVerify(pubkey);
    // verify the contents octets of the DER encoded authenticated attribs
    byte[] toBeDigested;
    toBeDigested = ASN1Util.encode(authenticatedAttributes);
    MessageDigest md = MessageDigest.getInstance(DigestAlgorithm.fromOID(digestAlgorithm.getOID()).toString());
    byte[] digest = md.digest(toBeDigested);
    byte[] toBeVerified;
    if (sigAlg.getRawAlg() == SignatureAlgorithm.RSASignature) {
        // create DigestInfo structure
        SEQUENCE digestInfo = new SEQUENCE();
        digestInfo.addElement(new AlgorithmIdentifier(digestAlgorithm.getOID(), null));
        digestInfo.addElement(new OCTET_STRING(digest));
        toBeVerified = ASN1Util.encode(digestInfo);
    } else {
        toBeVerified = digest;
    }
    sig.update(toBeVerified);
    if (!sig.verify(encryptedDigest.toByteArray())) {
        // signature is invalid
        throw new SignatureException("encryptedDigest was not the correct" + " signature of the contents octets of the DER-encoded" + " authenticated attributes");
    }
// SUCCESSFULLY VERIFIED
}

Example 4 with Signature

use of org.mozilla.jss.crypto.Signature in project jss by dogtagpki.

the class SignerInfo method verifyWithoutSignedAttributes.

/**
 * Verifies that the message digest passed in, when encrypted with the
 * given public key, matches the encrypted digest in the SignerInfo.
 */
private void verifyWithoutSignedAttributes(byte[] messageDigest, OBJECT_IDENTIFIER contentType, PublicKey pubkey) throws NotInitializedException, NoSuchAlgorithmException, InvalidKeyException, TokenException, SignatureException {
    if (!contentType.equals(ContentInfo.DATA)) {
        // to go into signedAttributes.
        throw new SignatureException("Content-Type is not DATA, but there are" + " no signed attributes");
    }
    SignatureAlgorithm sigAlg = SignatureAlgorithm.fromOID(digestEncryptionAlgorithm.getOID());
    CryptoToken token = CryptoManager.getInstance().getInternalCryptoToken();
    Signature sig;
    byte[] toBeVerified;
    if (sigAlg.getRawAlg() == SignatureAlgorithm.RSASignature) {
        // create DigestInfo structure
        SEQUENCE digestInfo = createDigestInfo(messageDigest, false);
        toBeVerified = ASN1Util.encode(digestInfo);
        sig = token.getSignatureContext(sigAlg.getRawAlg());
    } else {
        toBeVerified = messageDigest;
        sig = token.getSignatureContext(sigAlg);
    }
    sig.initVerify(pubkey);
    sig.update(toBeVerified);
    if (sig.verify(encryptedDigest.toByteArray())) {
        // success
        return;
    } else {
        throw new SignatureException("Encrypted message digest parameter does not " + "match encrypted digest in SignerInfo");
    }
}

Example 5 with Signature

use of org.mozilla.jss.crypto.Signature in project jss by dogtagpki.

the class SignerInfo method verifyWithoutAuthenticatedAttributes.

/**
 * Verifies that the message digest passed in, when encrypted with the
 * given public key, matches the encrypted digest in the SignerInfo.
 */
private void verifyWithoutAuthenticatedAttributes(byte[] messageDigest, OBJECT_IDENTIFIER contentType, PublicKey pubkey) throws NotInitializedException, NoSuchAlgorithmException, InvalidKeyException, TokenException, SignatureException {
    if (!contentType.equals(ContentInfo.DATA)) {
        // to go into authenticatedAttributes.
        throw new SignatureException("Content-Type is not DATA, but there are" + " no authenticated attributes");
    }
    SignatureAlgorithm sigAlg = SignatureAlgorithm.fromOID(digestEncryptionAlgorithm.getOID());
    byte[] toBeVerified;
    if (sigAlg.getRawAlg() == SignatureAlgorithm.RSASignature) {
        // create DigestInfo structure
        SEQUENCE digestInfo = new SEQUENCE();
        digestInfo.addElement(new AlgorithmIdentifier(digestAlgorithm.getOID(), null));
        digestInfo.addElement(new OCTET_STRING(messageDigest));
        toBeVerified = ASN1Util.encode(digestInfo);
    } else {
        toBeVerified = messageDigest;
    }
    CryptoToken token = CryptoManager.getInstance().getInternalCryptoToken();
    Signature sig = token.getSignatureContext(sigAlg);
    sig.initVerify(pubkey);
    sig.update(toBeVerified);
    if (sig.verify(encryptedDigest.toByteArray())) {
        // success
        return;
    } else {
        throw new SignatureException("Encrypted message digest parameter does not " + "match encrypted digest in SignerInfo");
    }
}