# Encrypt, Decrypt and Re-encrypt data
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Encryption and Decryption methods can be used to encrypt or decrypt data using a variety of symmetric and asymmetric techniques including TDES, AES and RSA. These methods also support keys derived using [DUKPT](terminology.md#terms.dukpt) and [EMV](terminology.md#terms.emv) techniques. For use cases where you wish to secure data under a new key without exposing the underlying data, the ReEncrypt command can also be used.

**Note**  
 When using the encrypt/decrypt functions, all inputs are assumed to be in hexBinary - for instance a value of 1 will be input as 31 (hex) and a lower case t is represented as 74 (hex). All outputs are in hexBinary as well. 

For details on all available options, please consult the API Guide for [Encrypt](https://docs.aws.amazon.com/payment-cryptography/latest/DataAPIReference/API_EncryptData.html), [Decrypt](https://docs.aws.amazon.com/payment-cryptography/latest/DataAPIReference/API_DecryptData.html), and [Re-Encrypt](https://docs.aws.amazon.com/payment-cryptography/latest/DataAPIReference/API_ReEncryptData.html). 

**Topics**
+ [Encrypt data](encrypt-data.md)
+ [Decrypt data](decrypt-data.md)