Example usage for java.security.interfaces RSAPublicKey getPublicExponent

List of usage examples for java.security.interfaces RSAPublicKey getPublicExponent

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Introduction

In this page you can find the example usage for java.security.interfaces RSAPublicKey getPublicExponent.

Prototype

public BigInteger getPublicExponent();

Source Link

Document

Returns the public exponent.

Usage

From source file:com.glaf.core.security.RSAUtils.java

public static void main(String[] args) {
    RSAPublicKey publicKey = RSAUtils.getDefaultPublicKey();
    System.out.println(new String(Hex.encodeHex(publicKey.getModulus().toByteArray())));
    System.out.println(new String(Hex.encodeHex(publicKey.getPublicExponent().toByteArray())));
    System.out.println(RSAUtils.decryptStringByJs(
            "2d7754804ecfb3c3e6fb7d12cdf439036f1d8e2ad34c5a6467bd6f1c165bb47f0fa57134b013aba49be5edf5231c2f7b611af5e974b521ea715b1a6bad6cfbf4ba8e0886c5fe1ce903d30ae0c8cd5f422860d67fa4fd3e2a8fc7872c6b052a6c8f480cfde5e147d959f3db5032767c393ff271742f66be7657290a5de218e375"));
}

From source file:Main.java

public static boolean RsaPublicKeyComparer(RSAPublicKey key1, RSAPublicKey key2) {
    return key1.getPublicExponent().compareTo(key2.getPublicExponent()) == 0
            && key1.getModulus().compareTo(key2.getModulus()) == 0;
}

From source file:org.cloudfoundry.identity.uaa.oauth.jwk.JsonWebKeyHelper.java

public static JsonWebKey fromPEMPrivateKey(String key) {
    KeyPair pair = KeyInfo.parseKeyPair(key);
    RSAPublicKey rsaKey = (RSAPublicKey) pair.getPublic();
    BigInteger modulus = rsaKey.getModulus();
    BigInteger exponent = rsaKey.getPublicExponent();
    Map<String, Object> properties = new HashMap();
    properties.put("n", base64.encodeAsString(modulus.toByteArray()));
    properties.put("e", base64.encodeAsString(exponent.toByteArray()));
    properties.put("kty", "RSA");
    properties.put("use", sig.name());
    properties.put("value", KeyInfo.pemEncodePublicKey(rsaKey));
    return new JsonWebKey(properties);
}

From source file:org.picketbox.json.key.RSAKey.java

public static RSAKey convert(RSAPublicKey publicKey) throws ProcessingException {
    BigInteger modulus = publicKey.getModulus();
    BigInteger exponent = publicKey.getPublicExponent();

    RSAKey rsaKey = new RSAKey();
    rsaKey.setMod(PicketBoxJSONUtil.b64Encode(modulus.toByteArray()));
    rsaKey.setExp(PicketBoxJSONUtil.b64Encode(exponent.toByteArray()));
    return rsaKey;
}

From source file:org.apache.whirr.util.KeyPair.java

private static byte[] encodePublicKey(RSAPublicKey key) throws IOException {
    ByteArrayOutputStream keyBlob = new ByteArrayOutputStream();
    write("ssh-rsa".getBytes(), keyBlob);
    write(key.getPublicExponent().toByteArray(), keyBlob);
    write(key.getModulus().toByteArray(), keyBlob);

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    out.write("ssh-rsa ".getBytes());
    out.write(Base64.encodeBase64(keyBlob.toByteArray()));

    return out.toByteArray();
}

From source file:com.axelor.apps.account.ebics.certificate.KeyUtil.java

/**
 * Returns the digest value of a given public key.
 * //from  w w  w. j  a  v a  2 s. c  o m
 * 
 * <p>In Version H003? of the EBICS protocol the ES of the financial:
 * 
 * <p>The SHA-256 hash values of the financial institution's public keys for X002 and E002 are
 * composed by concatenating the exponent with a blank character and the modulus in hexadecimal
 * representation (using lower case letters) without leading zero (as to the hexadecimal
 * representation). The resulting string has to be converted into a byte array based on US ASCII
 * code.
 * 
 * @param publicKey the public key
 * @return the digest value
 * @throws EbicsException
 */
public static byte[] getKeyDigest(RSAPublicKey publicKey) throws AxelorException {
    String modulus;
    String exponent;
    String hash;
    byte[] digest;

    exponent = Hex.encodeHexString(publicKey.getPublicExponent().toByteArray());
    modulus = Hex.encodeHexString(removeFirstByte(publicKey.getModulus().toByteArray()));
    hash = exponent + " " + modulus;

    if (hash.charAt(0) == '0') {
        hash = hash.substring(1);
    }

    try {
        digest = MessageDigest.getInstance("SHA-256", "BC").digest(hash.getBytes("US-ASCII"));
    } catch (GeneralSecurityException e) {
        throw new AxelorException(e.getMessage(), IException.CONFIGURATION_ERROR);
    } catch (UnsupportedEncodingException e) {
        throw new AxelorException(e.getMessage(), IException.CONFIGURATION_ERROR);
    }

    return new String(Hex.encodeHex(digest, false)).getBytes();
}

From source file:org.kopi.ebics.certificate.KeyUtil.java

/**
 * Returns the digest value of a given public key.
 * /*from www  .j av  a 2  s.  com*/
 * 
 * <p>In Version H003? of the EBICS protocol the ES of the financial:
 * 
 * <p>The SHA-256 hash values of the financial institution's public keys for X002 and E002 are
 * composed by concatenating the exponent with a blank character and the modulus in hexadecimal
 * representation (using lower case letters) without leading zero (as to the hexadecimal
 * representation). The resulting string has to be converted into a byte array based on US ASCII
 * code.
 * 
 * @param publicKey the public key
 * @return the digest value
 * @throws EbicsException
 */
public static byte[] getKeyDigest(RSAPublicKey publicKey) throws EbicsException {
    String modulus;
    String exponent;
    String hash;
    byte[] digest;

    exponent = Hex.encodeHexString(publicKey.getPublicExponent().toByteArray());
    modulus = Hex.encodeHexString(removeFirstByte(publicKey.getModulus().toByteArray()));
    hash = exponent + " " + modulus;

    if (hash.charAt(0) == '0') {
        hash = hash.substring(1);
    }

    try {
        digest = MessageDigest.getInstance("SHA-256", "BC").digest(hash.getBytes("US-ASCII"));
    } catch (GeneralSecurityException e) {
        throw new EbicsException(e.getMessage());
    } catch (UnsupportedEncodingException e) {
        throw new EbicsException(e.getMessage());
    }

    return new String(Hex.encodeHex(digest, false)).getBytes();
}

From source file:org.xdi.oxauth.cert.fingerprint.FingerprintHelper.java

private static byte[] getDerEncoding(RSAPublicKey key) throws IOException {
    ByteArrayOutputStream buffer = new ByteArrayOutputStream();
    DataOutputStream dataOutput = new DataOutputStream(buffer);
    writeDataWithLength("ssh-rsa".getBytes(), dataOutput);
    writeDataWithLength(key.getPublicExponent().toByteArray(), dataOutput);
    writeDataWithLength(key.getModulus().toByteArray(), dataOutput);

    return buffer.toByteArray();
}

From source file:org.excalibur.core.util.SecurityUtils2.java

public static String getFingerPrint(RSAPublicKey key) throws IOException {
    try (ByteArrayOutputStream buf = new ByteArrayOutputStream()) {
        write(key.getPublicExponent().toByteArray(), buf);
        write(key.getModulus().toByteArray(), buf);

        return getFingerPrint(buf.toByteArray());
    }/*from  www. ja v  a2 s. com*/
}

From source file:org.cloudfoundry.identity.uaa.oauth.TokenKeyEndpoint.java

public static VerificationKeyResponse getVerificationKeyResponse(KeyInfo key) {
    Map<String, Object> result = new HashMap<>();
    result.put("alg", key.getSigner().algorithm());
    result.put("value", key.getVerifierKey());
    //new values per OpenID and JWK spec
    result.put("use", sig.name());
    result.put("kid", key.getKeyId());
    result.put("kty", key.getType());

    if (key.isAssymetricKey() && "RSA".equals(key.getType())) {

        RSAPublicKey rsaKey = key.getRsaPublicKey();
        if (rsaKey != null) {
            String n = Base64Utils.encodeToUrlSafeString(rsaKey.getModulus().toByteArray());
            String e = Base64Utils.encodeToUrlSafeString(rsaKey.getPublicExponent().toByteArray());
            result.put("n", n);
            result.put("e", e);
        }/*www .  ja v  a 2s .  c  o  m*/
    }
    return new VerificationKeyResponse(result);
}