Crypt::...E2s_224(3)

💖 Crypt::Digest::BLAKE2s_224 💖

✨ NAME ✨

Crypt::Digest::BLAKE2s_224 — Hash function BLAKE2s [size: 224 bits] 💅

🌸 SYNOPSIS 🌸

Bestie, here's the whole vibe in code. Functional interface first, then the OO glow-up. 💖

### Functional interface:
use Crypt::Digest::BLAKE2s_224 qw( blake2s_224 blake2s_224_hex blake2s_224_b64 blake2s_224_b64u
                             blake2s_224_file blake2s_224_file_hex blake2s_224_file_b64 blake2s_224_file_b64u );

# calculate digest from string/buffer
my $data = 'data string';
my $blake2s_224_raw  = blake2s_224($data);
my $blake2s_224_hex  = blake2s_224_hex($data);
my $blake2s_224_b64  = blake2s_224_b64($data);
my $blake2s_224_b64u = blake2s_224_b64u($data);
# or from file
my $blake2s_224_file_raw  = blake2s_224_file('filename.dat');
my $blake2s_224_file_hex  = blake2s_224_file_hex('filename.dat');
my $blake2s_224_file_b64  = blake2s_224_file_b64('filename.dat');
my $blake2s_224_file_b64u = blake2s_224_file_b64u('filename.dat');
# or from filehandle
my $filehandle = ...; # existing binary-mode filehandle
my $blake2s_224_fh_raw  = blake2s_224_file($filehandle);
my $blake2s_224_fh_hex  = blake2s_224_file_hex($filehandle);
my $blake2s_224_fh_b64  = blake2s_224_file_b64($filehandle);
my $blake2s_224_fh_b64u = blake2s_224_file_b64u($filehandle);

### OO interface:
use Crypt::Digest::BLAKE2s_224;

my $d = Crypt::Digest::BLAKE2s_224->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::BLAKE2s_224->new->addfile('filename.dat')->digest;

💖 DESCRIPTION 💖

It gives you an interface to the BLAKE2s_224 digest algorithm. That's the whole plot. ✨

🎀 EXPORT 🎀

Default export? Nothing. Literally nothing is exported by default. 🫶

You can export selected functions:

use Crypt::Digest::BLAKE2s_224 qw(blake2s_224 blake2s_224_hex blake2s_224_b64 blake2s_224_b64u
                                    blake2s_224_file blake2s_224_file_hex blake2s_224_file_b64 blake2s_224_file_b64u);

Or all of them at once:

use Crypt::Digest::BLAKE2s_224 ':all';

🦋 FUNCTIONS 🦋

Bestie, these are the functional helpers. They all have the same energy: arguments get smooshed into one string, then the digest comes out in different flavors. 💅

blake2s_224

This one joins all its arguments into a single string and gives you back the BLAKE2s_224 digest encoded as a binary string (raw bytes, no cap). 🫶

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 blake2s_224_hex, blake2s_224_b64, and blake2s_224_b64u.

my $blake2s_224_raw = blake2s_224('data string');
#or
my $blake2s_224_raw = blake2s_224('any data', 'more data', 'even more data');

blake2s_224_hex

Joins all arguments into one string and returns its BLAKE2s_224 digest as a hexadecimal string. ✨

my $blake2s_224_hex = blake2s_224_hex('data string');
#or
my $blake2s_224_hex = blake2s_224_hex('any data', 'more data', 'even more data');

blake2s_224_b64

Joins all arguments into one string and returns its BLAKE2s_224 digest as a Base64 string, with trailing '=' padding. 🎀

my $blake2s_224_b64 = blake2s_224_b64('data string');
#or
my $blake2s_224_b64 = blake2s_224_b64('any data', 'more data', 'even more data');

blake2s_224_b64u

Joins all arguments into one string and returns its BLAKE2s_224 digest as a Base64 URL-safe string (see RFC 4648 section 5). 🌈

my $blake2s_224_b64url = blake2s_224_b64u('data string');
#or
my $blake2s_224_b64url = blake2s_224_b64u('any data', 'more data', 'even more data');

blake2s_224_file

Reads a file given by a filename or filehandle and returns its BLAKE2s_224 digest encoded as a binary string. 🦋

my $blake2s_224_raw = blake2s_224_file('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $blake2s_224_raw = blake2s_224_file($filehandle);

blake2s_224_file_hex

Reads a file given by a filename or filehandle and returns its BLAKE2s_224 digest encoded as a hexadecimal string. 💜

my $blake2s_224_hex = blake2s_224_file_hex('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $blake2s_224_hex = blake2s_224_file_hex($filehandle);

⚠️ Note: The filehandle must be in binary mode before you pass it to addfile().

blake2s_224_file_b64

Reads a file given by a filename or filehandle and returns its BLAKE2s_224 digest encoded as a Base64 string, with trailing '=' padding. 🌸

my $blake2s_224_b64 = blake2s_224_file_b64('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $blake2s_224_b64 = blake2s_224_file_b64($filehandle);

blake2s_224_file_b64u

Reads a file given by a filename or filehandle and returns its BLAKE2s_224 digest encoded as a Base64 URL-safe string (see RFC 4648 section 5). ⭐

my $blake2s_224_b64url = blake2s_224_file_b64u('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $blake2s_224_b64url = blake2s_224_file_b64u($filehandle);

👑 METHODS 👑

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::BLAKE2s_224->new();

new

my $d = Crypt::Digest::BLAKE2s_224->new();

clone

$d->clone();

reset

$d->reset();

add

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');

addfile

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);

hashsize

$d->hashsize;
#or
Crypt::Digest::BLAKE2s_224->hashsize();
#or
Crypt::Digest::BLAKE2s_224::hashsize();

digest

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();

hexdigest

Returns the digest encoded as a lowercase hexadecimal string. Like digest(), the first call finalizes the digest object. ✨

my $result_hex = $d->hexdigest();

b64digest

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();

b64udigest

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();

🌟 SEE ALSO 🌟

• CryptX, Crypt::Digest
• <https://blake2.net/>
• <https://www.rfc-editor.org/rfc/rfc7693>

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That's the whole page, bestie! 🫶 This is the Crypt::...E2s_224(3) manual from the User Contributed Perl Documentation crew, built on perl v5.42.0, dated 2026-05-11. Mwah! 💋