package cryptokit

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cryptokit
- Cryptokit
  - AEAD
  - Base64
  - Block
    
    aes_decrypt
    
    aes_encrypt
    
    block_cipher
    
    blowfish_decrypt
    
    blowfish_encrypt
    
    cbc_decrypt
    
    cbc_encrypt
    
    cfb_decrypt
    
    cfb_encrypt
    
    cipher
    
    cipher_padded_decrypt
    
    cipher_padded_encrypt
    
    ctr
    
    des_decrypt
    
    des_encrypt
    
    mac
    
    mac_final_triple
    
    ofb
    
    triple_des_decrypt
    
    triple_des_encrypt
  - Cipher
  - DH
  - Hash
  - Hexa
  - MAC
  - Padding
    
    scheme
  - RSA
  - Random
    
    rng
  - Stream
    
    arcfour
    
    chacha20
    
    cipher
    
    stream_cipher
  - Zlib
  - authenticated_transform
  - hash
  - transform
- CryptokitBignum

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The ARCfour (``alleged RC4'') stream cipher. The argument is the key, and must be of length 1 to 256. This stream cipher works by xor-ing the input with the output of a key-dependent pseudo random number generator. Thus, decryption is the same function as encryption.

alert crypto ARCfour is weak

method transform : bytes -> int -> bytes -> int -> int -> unit

transform src spos dst dpos len encrypts or decrypts len characters, read from byte array src starting at position spos. The resulting len characters are stored in byte array dst starting at position dpos.

method wipe : unit

Erase the internal state of the stream cipher, such as all key-dependent material.