Crypt::Digest::CHAES - Hash function - CipherHash based on AES [size: 128 bits]
### Functional interface:
use Crypt::Digest::CHAES qw( chaes chaes_hex chaes_b64 chaes_b64u
chaes_file chaes_file_hex chaes_file_b64 chaes_file_b64u );
# calculate digest from string/buffer
my $data = 'data string';
my $chaes_raw = chaes($data);
my $chaes_hex = chaes_hex($data);
my $chaes_b64 = chaes_b64($data);
my $chaes_b64u = chaes_b64u($data);
# or from file
my $chaes_file_raw = chaes_file('filename.dat');
my $chaes_file_hex = chaes_file_hex('filename.dat');
my $chaes_file_b64 = chaes_file_b64('filename.dat');
my $chaes_file_b64u = chaes_file_b64u('filename.dat');
# or from filehandle
my $filehandle = ...; # existing binary-mode filehandle
my $chaes_fh_raw = chaes_file($filehandle);
my $chaes_fh_hex = chaes_file_hex($filehandle);
my $chaes_fh_b64 = chaes_file_b64($filehandle);
my $chaes_fh_b64u = chaes_file_b64u($filehandle);
### OO interface:
use Crypt::Digest::CHAES;
my $d = Crypt::Digest::CHAES->new;
$d->add('any data');
my $result_raw = $d->digest; # raw bytes
my $result_hex = $d->hexdigest; # hexadecimal form
my $result_b64 = $d->b64digest; # Base64 form
my $result_b64u = $d->b64udigest; # Base64 URL-safe form
# or hash a file instead
my $file_result_raw = Crypt::Digest::CHAES->new->addfile('filename.dat')->digest;Provides an interface to the CHAES digest algorithm.
Nothing is exported by default.
You can export selected functions:
use Crypt::Digest::CHAES qw(chaes chaes_hex chaes_b64 chaes_b64u
chaes_file chaes_file_hex chaes_file_b64 chaes_file_b64u);Or all of them at once:
use Crypt::Digest::CHAES ':all';Joins all arguments into a single string and returns its CHAES digest encoded as a binary string.
Data arguments for the functional helpers are converted to byte strings using Perl's usual scalar stringification. Defined scalars, including numbers and string-overloaded objects, are accepted. undef is treated as an empty string and may emit Perl's usual "uninitialized value" warning. The same rules apply to chaes_hex, chaes_b64, and chaes_b64u.
my $chaes_raw = chaes('data string');
#or
my $chaes_raw = chaes('any data', 'more data', 'even more data');Joins all arguments into a single string and returns its CHAES digest encoded as a hexadecimal string.
my $chaes_hex = chaes_hex('data string');
#or
my $chaes_hex = chaes_hex('any data', 'more data', 'even more data');Joins all arguments into a single string and returns its CHAES digest encoded as a Base64 string, with trailing '=' padding.
my $chaes_b64 = chaes_b64('data string');
#or
my $chaes_b64 = chaes_b64('any data', 'more data', 'even more data');Joins all arguments into a single string and returns its CHAES digest encoded as a Base64 URL-safe string (see RFC 4648 section 5).
my $chaes_b64url = chaes_b64u('data string');
#or
my $chaes_b64url = chaes_b64u('any data', 'more data', 'even more data');Reads a file given by a filename or filehandle and returns its CHAES digest encoded as a binary string.
my $chaes_raw = chaes_file('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $chaes_raw = chaes_file($filehandle);Reads a file given by a filename or filehandle and returns its CHAES digest encoded as a hexadecimal string.
my $chaes_hex = chaes_file_hex('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $chaes_hex = chaes_file_hex($filehandle);Note: The filehandle must be in binary mode before you pass it to addfile().
Reads a file given by a filename or filehandle and returns its CHAES digest encoded as a Base64 string, with trailing '=' padding.
my $chaes_b64 = chaes_file_b64('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $chaes_b64 = chaes_file_b64($filehandle);Reads a file given by a filename or filehandle and returns its CHAES digest encoded as a Base64 URL-safe string (see RFC 4648 section 5).
my $chaes_b64url = chaes_file_b64u('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $chaes_b64url = chaes_file_b64u($filehandle);The OO interface provides the same set of functions as Crypt::Digest. Unless noted otherwise, assume $d is an existing digest object created via new, for example:
my $d = Crypt::Digest::CHAES->new();my $d = Crypt::Digest::CHAES->new();$d->clone();$d->reset();Appends data to the message. Returns the object itself (for chaining).
Each argument is converted to bytes using Perl's usual scalar stringification. Defined scalars, including numbers and string-overloaded objects, are accepted. undef is treated as an empty string and may emit Perl's usual "uninitialized value" warning.
$d->add('any data');
#or
$d->add('any data', 'more data', 'even more data');Reads the file content and appends it to the message. Returns the object itself (for chaining).
$d->addfile('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
$d->addfile($filehandle);$d->hashsize;
#or
Crypt::Digest::CHAES->hashsize();
#or
Crypt::Digest::CHAES::hashsize();Returns the binary digest (raw bytes). The first call finalizes the digest object. Any later add(), addfile(), digest(), hexdigest(), b64digest(), or b64udigest() call will fail until you call reset().
my $result_raw = $d->digest();Returns the digest encoded as a lowercase hexadecimal string. Like digest(), the first call finalizes the digest object.
my $result_hex = $d->hexdigest();Returns the digest encoded as a Base64 string with trailing = padding. Like digest(), the first call finalizes the digest object.
my $result_b64 = $d->b64digest();Returns the digest encoded as a Base64 URL-safe string (no trailing =). Like digest(), the first call finalizes the digest object.
my $result_b64url = $d->b64udigest();