# Package com.datecs.crypto

- Class Summary
  Class | Description
  --- | ---
  AES | Helper methods to encrypt or decrypt with AES algorithm.
  CRC | Helper methods for CRC calculations.
  DUKPT | Helper methods for DUKPT key generation.
  RSA | Helper methods to encrypt or decrypt with RSA algorithm.
  SHA1 | SHA1
  SHA256 | SHA256
  TR31 |
  TripleDES | Helper methods to encrypt or decrypt with Triple DES algorithm.

- Enum Summary
  Enum | Description
  --- | ---
  DUKPT.DerivationPurpose | Identifies if this derivation is to create an initial key or any other key type to help select which derivation data table to use.
  DUKPT.KeyType | KeyType defines the cryptographic key type being derived.
  DUKPT.KeyUsage | KeyUsage defines the possible key usages that can be derived.