/// <summary>
/// Import the encrypted data from a previously combined string of format "{Cipher}:{KeyName}:{Iv}:{CipherText}"
/// </summary>
/// <param name="combinedString"></param>
/// <returns></returns>
public static EncryptedField FromCombinedString(string combinedString)
{
var parts = combinedString.Split(":");
var encryptedField = new EncryptedField(
parts[1],
parts[0],
parts[2],
parts[3]);
return(encryptedField);
}
/// <summary>
/// Create a new EncryptedField class from plaintext. The returned object contains the encrypted data.
/// </summary>
/// <param name="plainText"></param>
/// <returns></returns>
public static EncryptedField FromPlainText(string plainText)
{
var iv = Random128BitsBase64();
var key = KeyStorage.Shared.GetPrimary();
using (EncryptionHistogram.Labels(Aes256CbcString).NewTimer())
{
var encryptedData = new EncryptedField(
key.KeyName,
Aes256CbcString,
iv,
Convert.ToBase64String(
EncryptStringToBytes_Aes256CBC(
plainText,
key.KeyData, // we always encrypt with the primary
Convert.FromBase64String(iv))));
return(encryptedData);
}
}