KeyGenerator kg = KeyGenerator.getInstance(algName);
Key k = kg.generateKey();
if(kg.getAlgorithm().toLowerCase().equals(k.getAlgorithm().toLowerCase()) != true) {
throw new Exception ("Algorithm names not matched for KeyGenerator" +
" and for Key objects");
}
if(kg.getAlgorithm().toLowerCase().equals(algName.toLowerCase()) != true) {
throw new Exception ("Algorithm names not matched for KeyGenerator" +
" and for Key objects");
}
byte[] array1 = k.getEncoded();
k = kg.generateKey();
byte[] array2 = k.getEncoded();
int matches = 0;
for (int i = 0; i < array1.length; i++) {
if (array1[i] == array2[i]) {
matches++;
}
}
if (matches > array1.length / 2) {
throw new Exception("Generated keys are simular");
}
SecureRandom random = new SecureRandom();
kg.init(random);
matches = 0;
k = kg.generateKey();
array1 = k.getEncoded();
random = new SecureRandom();
kg.init(random);
k = kg.generateKey();
array2 = k.getEncoded();
for (int i = 0; i < array1.length; i++) {
if (array1[i] == array2[i]) {
matches++;
}
}
