Digest.MD5.3o - Man Page
MD5 is the MD5 hash function.
Module
Module Digest.MD5
Documentation
Module MD5
: S
MD5 is the MD5 hash function. It produces 128-bit (16-byte) digests and is not cryptographically secure at all. It should be used only for compatibility with earlier designs that mandate the use of MD5.
Since 5.2
type t = string
The type of digests.
val hash_length : int
The length of digests, in bytes.
val compare : t -> t -> int
Compare two digests, with the same specification as compare .
val equal : t -> t -> bool
Test two digests for equality.
val string : string -> t
Return the digest of the given string.
val bytes : bytes -> t
Return the digest of the given byte sequence.
val substring : string -> int -> int -> t
substring s ofs len returns the digest of the substring of s starting at index ofs and containing len characters.
val subbytes : bytes -> int -> int -> t
subbytes s ofs len returns the digest of the subsequence of s starting at index ofs and containing len bytes.
val channel : in_channel -> int -> t
Read characters from the channel and return their digest. See Digest.channel for the full specification.
val file : string -> t
Return the digest of the file whose name is given.
val output : out_channel -> t -> unit
Write a digest on the given output channel.
val input : in_channel -> t
Read a digest from the given input channel.
val to_hex : t -> string
Return the printable hexadecimal representation of the given digest.
Raises Invalid_argument if the length of the argument is not hash_length ,
val of_hex : string -> t
Convert a hexadecimal representation back into the corresponding digest.
Raises Invalid_argument if the length of the argument is not 2 * hash_length , or if the arguments contains non-hexadecimal characters.