Java Utililty Methods Key Create

List of utility methods to do Key Create

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Description

The list of methods to do Key Create are organized into topic(s).

Method

KeyPairGeneratorgetKeyPairGenerator(final String algorithm)
get Key Pair Generator 
return KeyPairGenerator.getInstance(algorithm);
HashMapgetKeys()
get Keys 
HashMap<String, Object> map = new HashMap<String, Object>();
KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA");
keyPairGen.initialize(1024);
KeyPair keyPair = keyPairGen.generateKeyPair();
RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
map.put("public", publicKey);
map.put("private", privateKey);
...
intgetKeySize(final Key key)
Get the key size for the given Key . 
if (key instanceof ECKey) {
    ECParameterSpec params = ((ECKey) key).getParams();
    if (params != null) {
        return params.getOrder().bitLength();
} else if (key instanceof DSAKey) {
    DSAParams params = ((DSAKey) key).getParams();
    if (params != null) {
...
intgetKeySize(PrivateKey key)
Returns the key size of the given key object in bits. 
int size = -1;
if (key instanceof RSAKey) {
    RSAKey pubk = (RSAKey) key;
    size = pubk.getModulus().bitLength();
} else if (key instanceof ECKey) {
    ECKey pubk = (ECKey) key;
    size = pubk.getParams().getOrder().bitLength();
} else if (key instanceof DSAKey) {
...
KeyStoregetKeyStore()
Obtain OpenSC PKCS#11 keystore without init 
return KeyStore.getInstance("PKCS11", pkcs11Provider);
KeyStoregetKeyStore()
get Key Store 
if (keyStore == null) {
    String filename = System.getProperty("keyStore");
    if (filename == null) {
        return null;
    try {
        InputStream in = new BufferedInputStream(new FileInputStream(filename));
        keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
...
KeyStoregetKeyStore(byte[] bytes, char[] password)
get Key Store 
ByteArrayInputStream bais = null;
try {
    bais = new ByteArrayInputStream(bytes);
    try {
        KeyStore keyStore = KeyStore.getInstance(TOLVEN_CREDENTIAL_FORMAT_PKCS12);
        keyStore.load(bais, password);
        return keyStore;
    } catch (Exception ex) {
...
KeyStoregetKeyStore(Certificate[] certificateChain, PrivateKey privateKey, char[] password)
get Key Store 
KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
keyStore.load(null, null);
keyStore.setKeyEntry("key", privateKey, password, certificateChain);
return keyStore;
KeyStoregetKeyStore(char[] password)
get Key Store 
KeyStore ks = null;
try {
    ks = getKeyStore(null, password, null, null, null);
} catch (IOException ioe) {
return ks;
KeyStoregetKeyStore(File file, char[] storePass)
get Key Store 
FileInputStream ksInputStream = new FileInputStream(file);
KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
ks.load(ksInputStream, storePass);
return ks;