public static KeyPair func_75891_b() {
try {
KeyPairGenerator keypairgenerator = KeyPairGenerator.getInstance("RSA");
keypairgenerator.initialize(1024);
return keypairgenerator.generateKeyPair();
} catch (NoSuchAlgorithmException nosuchalgorithmexception) {
nosuchalgorithmexception.printStackTrace();
}
System.err.println("Key pair generation failed!");
return null;
}
public static PublicKey func_75896_a(byte p_75896_0_[]) {
try {
X509EncodedKeySpec x509encodedkeyspec = new X509EncodedKeySpec(p_75896_0_);
KeyFactory keyfactory = KeyFactory.getInstance("RSA");
return keyfactory.generatePublic(x509encodedkeyspec);
} catch (NoSuchAlgorithmException nosuchalgorithmexception) {
nosuchalgorithmexception.printStackTrace();
} catch (InvalidKeySpecException invalidkeyspecexception) {
invalidkeyspecexception.printStackTrace();
}
System.err.println("Public key reconstitute failed!");
return null;
}
private static Cipher func_75886_a(int p_75886_0_, String p_75886_1_, Key p_75886_2_) {
try {
Cipher cipher = Cipher.getInstance(p_75886_1_);
cipher.init(p_75886_0_, p_75886_2_);
return cipher;
} catch (InvalidKeyException invalidkeyexception) {
invalidkeyexception.printStackTrace();
} catch (NoSuchAlgorithmException nosuchalgorithmexception) {
nosuchalgorithmexception.printStackTrace();
} catch (NoSuchPaddingException nosuchpaddingexception) {
nosuchpaddingexception.printStackTrace();
}
System.err.println("Cipher creation failed!");
return null;
}
private static byte[] func_75893_a(String p_75893_0_, byte p_75893_1_[][]) {
try {
MessageDigest messagedigest = MessageDigest.getInstance(p_75893_0_);
byte abyte0[][] = p_75893_1_;
int i = abyte0.length;
for (int j = 0; j < i; j++) {
byte abyte1[] = abyte0[j];
messagedigest.update(abyte1);
}
return messagedigest.digest();
} catch (NoSuchAlgorithmException nosuchalgorithmexception) {
nosuchalgorithmexception.printStackTrace();
}
return null;
}