This module stands as a base class for digest implementation classes.

Methods
B
D
F
H
Included Modules
Class Public methods
base64digest(str, *args)

Returns the base64 encoded hash value of a given string. The return value is properly padded with '=' and contains no line feeds.

Source: show | on GitHub 

# File ext/digest/lib/digest.rb, line 35
def self.base64digest(str, *args)
  [digest(str, *args)].pack('m0')
end
Digest::Class.digest(string, *parameters) → hash_string

Returns the hash value of a given string. This is equivalent to Digest::Instance#new.digest(string), where extra parameters, if any, are passed through to the constructor and the string is passed to digest().

Source: show 

static VALUE
rb_digest_class_s_digest(int argc, VALUE *argv, VALUE klass)
{
    VALUE str;
    volatile VALUE obj;

    if (argc < 1) {
        rb_raise(rb_eArgError, "no data given");
    }

    str = *argv++;
    argc--;

    StringValue(str);

    obj = rb_obj_alloc(klass);
    rb_obj_call_init(obj, argc, argv);

    return rb_funcall(obj, id_digest, 1, str);
}
file(name)

creates a digest object and reads a given file, name.

p Digest::SHA256.file("X11R6.8.2-src.tar.bz2").hexdigest
# => "f02e3c85572dc9ad7cb77c2a638e3be24cc1b5bea9fdbb0b0299c9668475c534"

Source: show | on GitHub 

# File ext/digest/lib/digest.rb, line 28
def self.file(name)
  new.file(name)
end
Digest::Class.hexdigest(string[, ...]) → hash_string

Returns the hex-encoded hash value of a given string. This is almost equivalent to Digest.hexencode(Digest::Class.new(*parameters).digest(string)).

Source: show 

static VALUE
rb_digest_class_s_hexdigest(int argc, VALUE *argv, VALUE klass)
{
    return hexencode_str_new(rb_funcall2(klass, id_digest, argc, argv));
}