SalesForce marketing System not getting decrypted in Using java Crypto - salesforce-communities

Question

I need some help in understanding, how to decrypt SalesforceMarketingCloud encrypted String into java.
I should admit that I have few things missing in my questions but this is what ever I have been provided so far
Algorithm – AES256, 256 Bit
Initilization vector – 16 bytes
Salt – 8 Bytes
Passphrase – “presharedpassphrase123”
As per my understanding the Input String has been encrypted using
EncryptSymmetric(#Clear, "AES", #null, #Passphrase, #null, #Salt, #null, #IV)
But when I try to decrypt it at Java side, it fails for various reason.
My best shot has been getting a garbage String as output so far when I used combination like below
NoPadding, CBS, and hashing my passphrase(which is 22 char long) to 32 bit using SHA-256
Can anyone please help, any Java code sample which you successfully used in past.
private String decryptWithKey(String myKey, byte[] strToDecrypt) throws Exception
{
MessageDigest sha = null;
try {
key = myKey.getBytes(CHAR_SCHEME);
sha = MessageDigest.getInstance("SHA-256");
key = sha.digest(key);
key = Arrays.copyOf(key, 32);
secretKey = new SecretKeySpec(key, ALGO);
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
byte[] ivByte = new byte[cipher.getBlockSize()];
ivByte = hexStringToByteArray("0716A494177F29F102AF33AFD0253BA1");;
System.out.println(new String(ivByte));
// IvParameterSpec ivParamsSpec = new IvParameterSpec(IV);
IvParameterSpec ivParamsSpec = new IvParameterSpec(ivByte);
cipher.init(Cipher.DECRYPT_MODE, secretKey, ivParamsSpec);
setDecryptedString(new String(cipher.doFinal(strToDecrypt)));
}
catch (Exception e)
{
System.out.println("Error while decrypting: "+e.toString());
throw e;
}
return decryptedString;
}