Example usage for java.util Base64 getMimeDecoder

Introduction

In this page you can find the example usage for java.util Base64 getMimeDecoder.

Prototype

public static Decoder getMimeDecoder() 

Source Link

Document

Returns a Decoder that decodes using the MIME type base64 decoding scheme.

Usage

From source file:org.codice.ddf.security.idp.client.AssertionConsumerService.java

private String decodeBase64(String encoded) {
    return new String(Base64.getMimeDecoder().decode(encoded.getBytes(StandardCharsets.UTF_8)),
            StandardCharsets.UTF_8);
}

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From source file:org.openhab.binding.km200.internal.KM200Cryption.java

/**
 * This function does the decoding for a new message from the device
 *
 *//*from w ww. j  a v  a  2s .co  m*/
public String decodeMessage(byte[] encoded) {
    String retString = null;
    byte[] decodedB64 = null;

    // MimeDecoder was the only working decoder.
    decodedB64 = Base64.getMimeDecoder().decode(encoded);

    try {
        /* Check whether the length of the decryptData is NOT multiplies of 16 */
        if ((decodedB64.length & 0xF) != 0) {
            /* Return the data */
            retString = new String(decodedB64, remoteDevice.getCharSet());
            logger.debug("Did NOT decrypt message");
            return retString;
        }
        // --- create cipher
        final Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(remoteDevice.getCryptKeyPriv(), "AES"));
        byte[] decryptedData = cipher.doFinal(decodedB64);
        byte[] decryptedDataWOZP = removeZeroPadding(decryptedData);
        return (new String(decryptedDataWOZP, remoteDevice.getCharSet()));
    } catch (UnsupportedEncodingException | GeneralSecurityException e) {
        logger.debug("Exception on encoding: {}", e);
        return null;
    }
}

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