Safe Haskell | None |
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A pure interface to AES

- data Mode
- data Direction
- crypt :: Mode -> ByteString -> ByteString -> Direction -> ByteString -> ByteString
- crypt' :: Mode -> ByteString -> ByteString -> Direction -> ByteString -> ByteString

# Documentation

Modes ECB and CBC can only handle full 16-byte frames. This means
the length of every strict bytestring passed in must be a multiple
of 16; when using lazy bytestrings, its *component* strict
bytestrings must all satisfy this.

Other modes can handle bytestrings of any length. However, encrypting a bytestring of length 5 and then one of length 4 is not the same operation as encrypting a single bytestring of length 9; they are internally padded to a multiple of 16 bytes.

For OFB and CTR, Encrypt and Decrypt are the same operation. For CTR, the IV is the initial value of the counter.

:: Mode | |

-> ByteString | The AES key - 16, 24 or 32 bytes |

-> ByteString | The IV, 16 bytes |

-> Direction | |

-> ByteString | Bytestring to encrypt/decrypt |

-> ByteString |

Encryption/decryption for lazy bytestrings

:: Mode | |

-> ByteString | The AES key - 16, 24 or 32 bytes |

-> ByteString | The IV, 16 bytes |

-> Direction | |

-> ByteString | Bytestring to encrypt/decrypt |

-> ByteString |

Encryption/decryption for strict bytestrings