module Netsys_ciphers:sig
..end
typepadding =
[ `CTS | `Length | `None | `_8000 ]
`None
: no padding. The text to encrypt/decrypt must be a multiple
of block_constraint
bytes`Length
: Pad the last block with n bytes of code n`_8000
: Pad with one byte 0x80 and as many zeros as needed to fill
the block (this may add one or two blocks)`CTS
: Use "Ciphertext Stealing". There is a minimum length of the
message to encrypt of two blocks.class type cipher_ctx =object
..end
class type cipher =object
..end
Netsys_crypto.current_symmetric_crypto
), unless the impl
argument is
passed.val ciphers : ?impl:(module Netsys_crypto_types.SYMMETRIC_CRYPTO) ->
unit -> cipher list
val find : ?impl:(module Netsys_crypto_types.SYMMETRIC_CRYPTO) ->
string * string -> cipher
find (name,mode)
: get the cipher name
in the passed mode
.
The name conventionally follows the <uppercasestring>-<size>
format,
e.g. "AES-128" or "TWOFISH-128".
Modes are "ECB", "CBC", "OFB", "CTR", "STREAM", "GCM". Not every cipher
is available in every mode.
val process_subbytes : (last:bool -> Netsys_types.memory -> Netsys_types.memory -> int * int) ->
Bytes.t -> int -> int -> Bytes.t
process_subbytes p s pos len
: If p
is encrypt
or decrypt
from
a cipher_ctx
, p
will be called to submit the data from string s
,
starting at position pos
and length len
.
The encrypted or decrypted string is returned.
val process_substring : (last:bool -> Netsys_types.memory -> Netsys_types.memory -> int * int) ->
string -> int -> int -> string
process_substring p s pos len
: Same for immutable strings.val process_bytes : (last:bool -> Netsys_types.memory -> Netsys_types.memory -> int * int) ->
Bytes.t -> Bytes.t
process_bytes p s
: If p
is encrypt
or decrypt
from
a cipher_ctx
, p
will be called to submit the data from string s
.
The encrypted or decrypted string is returned.
val process_string : (last:bool -> Netsys_types.memory -> Netsys_types.memory -> int * int) ->
string -> string
process_string p s
: same for immutable strings.