[英]How to encrypt String using Camellia 128-bit Encryption Algorithm in Java?
[英]How to encrypt & decrypt using Camellia 128bit in Android JAVA code?
Android JAVA 代碼中 Camellia 128bit 的提供程序名稱語法是什么? 我嘗試從Cipher.getInstance("AES/CBC/PKCS7Padding")
Cipher.getInstance("Camellia/CBC/PKCS7Padding","BC")
為Cipher.getInstance("Camellia/CBC/PKCS7Padding","BC")
但它說 Provider BC 不提供“Camellia/CBC/PKCS7Padding”。 下面是我的代碼
try {
String keyString = "Potatoman55@";//length of key is 16
Cipher desCipher = Cipher.getInstance("Camellia/CBC/PKCS7Padding","BC");
byte[] key = new byte[0];
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
key = keyString.getBytes(StandardCharsets.UTF_8);
}
}
MessageDigest sha = MessageDigest.getInstance("SHA-1");
key = sha.digest(key);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
key = Arrays.copyOf(key, 16); // use only first 128 bit
}
SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");
desCipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
String plainText = "hello wolrd";
System.out.println("plaintext: "+plainText);
byte[] text = plainText.getBytes("UTF-8");
byte[] textencrypted = desCipher.doFinal(text);
String textEnc = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
System.out.println("encrypted: " + Base64.getEncoder().encodeToString(textencrypted));
textEnc = Base64.getEncoder().encodeToString(textencrypted);
}
result.success(textEnc);
} catch (Exception ex) {
System.out.println(ex.toString());
}
我通過這段代碼成功運行了代碼new org.bouncycastle.jce.provider.BouncyCastleProvider());
作為提供者。 非常感謝這個評論。 下面是完整的語法
Cipher desCipher = Cipher.getInstance("Camellia/CBC/PKCS7Padding",new org.bouncycastle.jce.provider.BouncyCastleProvider());
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