CryptoJS Encryption and Decryption in UWP C#

[kyks]

I have a video URL link which is encrypted using CryptoJS on a server and my job in my Universal Windows App in c# is to decrypt the sent content and get the original video URL link.

I have tried to use AES Decryption but still getting errors. Below is the array that is generated when the URL is encrypted on the server

Passphrase: e615242cd9498f2a38995d516bb5f8c819be91a4
​

Encrypted String: {"ct":"yA8RGCPPvX4f9QhIJ0ga2oOutxnUEcddh5iBQalPoAlNZgutVTefOdvwO54D7Bwl2eTr+i/u9/cDL6sVcvZ9+hXfr1eZ/sYjjKX0qSr+yPjA+CrQWeApBPVtS45JPCY8ekB2pZah8uqqtPpfeV5T8xHzrkJJbS0d+VqFhj1aqao/qWKdCaD6BK75QfnkBz0XzQd/ulK7saoLGO2t7LHhlg==","iv":"0fa9a8205ccb9894e416e8ba85bc4960","s":"60f24ca1a8380cac"}

Below is the code that requires an key and Iv and what to decrpyt

class AesEnDecryption
{
// Key with 256 and IV with 16 length
private string AES_Key = "";
private string AES_IV = "";
private IBuffer m_iv = null;
private CryptographicKey m_key;

public AesEnDecryption()
{


IBuffer key = Convert.FromBase64String(AES_Key).AsBuffer();
m_iv = Convert.FromBase64String(AES_IV).AsBuffer();
SymmetricKeyAlgorithmProvider provider = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7);
m_key = provider.CreateSymmetricKey(key);
}

public byte[] Encrypt(byte[] input)
{

IBuffer bufferMsg = CryptographicBuffer.ConvertStringToBinary(Encoding.ASCII.GetString(input), BinaryStringEncoding.Utf8);
IBuffer bufferEncrypt = CryptographicEngine.Encrypt(m_key, bufferMsg, m_iv);
return bufferEncrypt.ToArray();
}

public string Decrypt(byte[] input)
{
IBuffer bufferDecrypt = CryptographicEngine.Decrypt(m_key, input.AsBuffer(), m_iv);

string one = Encoding.Unicode.GetString(bufferDecrypt.ToArray());
return one;
}

}




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