| EncryptAsync(String, String, CancellationToken) | Encrypts a string using the default symmetrical encryption but without salt. | 
| EncryptAsync(String, String, Boolean, CancellationToken) | Encrypts a string using the default symmetrical encryption. | 
| EncryptAsync(String, String, SymmetricAlgorithm, CancellationToken) | Encrypts a string using a specified symmetrical encryption algorithm. | 
| EncryptAsync(String, String, String, CancellationToken) | Encrypts a string using a specified symmetrical encryption algorithm. |