“RSA Java” Kode Jawaban

RSA Java

byte[] cipherText;
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, pk);
cipherText = cipher.doFinal("Hello World!".getBytes());
return Base64.encodeBase64String(cipherText);
Important Impala

RSA Java

String pubKey = "<Retrieved pkcs8 public key>";
pubKey = pubKey.replaceAll("(-+BEGIN PUBLIC KEY-+\\r?\\n|-+END PUBLIC KEY-+\\r?\\n?)", "");
byte[] keyBytes = Base64.decodeBase64(pubKey);
X509EncodedKeySpec spec = new X509EncodedKeySpec(keyBytes);
KeyFactory kf = KeyFactory.getInstance("RSA");
PublicKey pk = kf.generatePublic(spec);
Important Impala

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