Java Utililty Methods Key Pair Create

List of utility methods to do Key Pair Create

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Description

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

Method

KeygenerateKey()
generate Key 
try {
    KeyGenerator kg = KeyGenerator.getInstance("DES");
    Key key = kg.generateKey();
    return key;
} catch (Exception e) {
    e.printStackTrace();
return null;
...
SecretKeygenerateKey()
generate Key 
KeyGenerator gen;
try {
    gen = KeyGenerator.getInstance("AES");
} catch (NoSuchAlgorithmException e) {
    throw new IllegalStateException("Failed to get generator for algorithm", e);
gen.init(random);
return gen.generateKey();
...
KeygenerateKey(byte[] keyBytes)
generate Key 
KeySpec keySpec = new DESKeySpec(keyBytes);
SecretKeyFactory factory = SecretKeyFactory.getInstance(DES);
return factory.generateSecret(keySpec);
KeygenerateKey(byte[] keyBytes)
generate Key 
return new SecretKeySpec(keyBytes, AES);
KeygenerateKey(char[] password)
generate Key 
return generateKey(password, generateSalt(128));
byte[]generateKey(final SecureRandom srand)
generate Key 
final byte[] key = new byte[256 / 8];
srand.nextBytes(key);
return key;
SecretKeygenerateKey(final String password, final byte salt[])
Generates a key using the specified password and salt. 
if (salt.length < SALT_LENGTH) {
    throw new Exception("Need a salt at least length " + SALT_LENGTH + ".");
return generateKey(password.toCharArray(), salt);
KeygenerateKey(SecureRandom sr, int size)
generate Key 
byte[] bytes = new byte[size];
sr.nextBytes(bytes);
return new SecretKeySpec(bytes, "AES");
SecretKeygenerateKey(String algom, int keylength)
generate Key 
try {
    KeyGenerator keygen = KeyGenerator.getInstance(algom);
    keygen.init(keylength);
    SecretKey deskey = keygen.generateKey();
    return deskey;
} catch (GeneralSecurityException e) {
    throw new RuntimeException(e);
SecretKeygenerateKey(String algorithm, int keySize)
Generate a SecretKey for the given symmetric algorithm and keysize Example: CipherUtils.generateKeyPair("AES", 128) 
KeyGenerator secretKeyGenerator;
try {
    secretKeyGenerator = KeyGenerator.getInstance(algorithm);
} catch (NoSuchAlgorithmException e) {
    throw new IllegalArgumentException(e);
secretKeyGenerator.init(keySize);
return secretKeyGenerator.generateKey();
...