AES-0.2.5: Fast AES encryption/decryption for bytestringsSource codeContentsIndex
Codec.Crypto.AES
Description
A pure interface to AES
Synopsis
data Mode
= ECB
| CBC
| CFB
| OFB
| CTR
data Direction
= Encrypt
| Decrypt
crypt :: Mode -> ByteString -> ByteString -> Direction -> ByteString -> ByteString
crypt' :: Mode -> ByteString -> ByteString -> Direction -> ByteString -> ByteString
Documentation
data Mode Source

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.

Constructors
ECB
CBC
CFB
OFB
CTR
data Direction Source
Constructors
Encrypt
Decrypt
cryptSource
:: Mode
-> ByteStringThe AES key - 16, 24 or 32 bytes
-> ByteStringThe IV, 16 bytes
-> Direction
-> ByteStringBytestring to encrypt/decrypt
-> ByteString
Encryption/decryption for lazy bytestrings
crypt'Source
:: Mode
-> ByteStringThe AES key - 16, 24 or 32 bytes
-> ByteStringThe IV, 16 bytes
-> Direction
-> ByteStringBytestring to encrypt/decrypt
-> ByteString
Encryption/decryption for strict bytestrings
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