Android Utililty Methods SHA256 Hash Create

List of utility methods to do SHA256 Hash Create

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Description

The list of methods to do SHA256 Hash Create are organized into topic(s).

Method

byte[]doubleSha256TwoBuffers(byte[] data1, byte[] data2)
double Sha Two Buffers 
try {
    MessageDigest digest;
    digest = MessageDigest.getInstance(SHA256);
    digest.update(data1, 0, data1.length);
    digest.update(data2, 0, data2.length);
    return digest.digest(digest.digest());
} catch (NoSuchAlgorithmException e) {
    throw new RuntimeException(e); 
...
StringSHA256(String text)
Converts a String into a SHA-256 hash. 
return hashAlgorithm("SHA-256", text);
StringgetHmacSHA256(String key, String input)
Generated a hmac sha256 for a string 
Mac mac = Mac.getInstance(HMAC_SHA_2561);
mac.init(new SecretKeySpec(key.getBytes(), HMAC_SHA_2561));
byte[] bs = mac.doFinal(input.getBytes());
return byteArrayToHexString(bs);
byte[]sha256(byte[] data)
sha 
return MessageDigest.getInstance("SHA-256").digest(data);
byte[]cipher(int mode, byte[] data, byte[] secret)
cipher 
SecretKeySpec secretKeySpec = new SecretKeySpec(sha256(secret),
        "AES");
Cipher c = Cipher.getInstance("AES");
c.init(mode, secretKeySpec);
return c.doFinal(data);