Crypt::...SHA3_224(3)

💖 Crypt::Digest::SHA3_224 💖

okay bestie, so this is a User Contributed Perl Documentation page for Crypt::Digest::SHA3_224, and no cap, it's here to make SHA3-224 make sense. It's giving "small digest, big main character energy." 🎀

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✨ NAME ✨

Crypt::Digest::SHA3_224 — the hash function SHA3-224 [size: 224 bits]. Literally the whole vibe: you put data in, you get a 224-bit digest out. 💅

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🌸 SYNOPSIS 🌸

There are two ways to rock this, bestie: the functional interface and the OO interface. Both are iconic. 🫶

🦋 Functional interface:

### Functional interface:
use Crypt::Digest::SHA3_224 qw( sha3_224 sha3_224_hex sha3_224_b64 sha3_224_b64u
                             sha3_224_file sha3_224_file_hex sha3_224_file_b64 sha3_224_file_b64u );

# calculate digest from string/buffer
my $data = 'data string';
my $sha3_224_raw  = sha3_224($data);
my $sha3_224_hex  = sha3_224_hex($data);
my $sha3_224_b64  = sha3_224_b64($data);
my $sha3_224_b64u = sha3_224_b64u($data);
# or from file
my $sha3_224_file_raw  = sha3_224_file('filename.dat');
my $sha3_224_file_hex  = sha3_224_file_hex('filename.dat');
my $sha3_224_file_b64  = sha3_224_file_b64('filename.dat');
my $sha3_224_file_b64u = sha3_224_file_b64u('filename.dat');
# or from filehandle
my $filehandle = ...; # existing binary-mode filehandle
my $sha3_224_fh_raw  = sha3_224_file($filehandle);
my $sha3_224_fh_hex  = sha3_224_file_hex($filehandle);
my $sha3_224_fh_b64  = sha3_224_file_b64($filehandle);
my $sha3_224_fh_b64u = sha3_224_file_b64u($filehandle);

👑 OO interface:

### OO interface:
use Crypt::Digest::SHA3_224;

my $d = Crypt::Digest::SHA3_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::SHA3_224->new->addfile('filename.dat')->digest;

---

💜 DESCRIPTION 💜

It provides an interface to the SHA3_224 digest algorithm. That's it. That's the whole mood. Simple, clean, cryptographic. ✨

---

🍓 EXPORT 🍓

Nothing is exported by default. Like, zero. None. The module is lowkey minding its own business until you ask. 🙈

You can export selected functions:

use Crypt::Digest::SHA3_224 qw(sha3_224 sha3_224_hex sha3_224_b64 sha3_224_b64u
                                    sha3_224_file sha3_224_file_hex sha3_224_file_b64 sha3_224_file_b64u);

Or all of them at once, because sometimes you just want the whole menu:

use Crypt::Digest::SHA3_224 ':all';

---

⭐ FUNCTIONS ⭐

🌈 sha3_224

Joins all arguments into a single string and returns its SHA3_224 digest encoded as a binary string. Raw bytes. Very "behind the scenes" of it. 💅

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 sha3_224_hex, sha3_224_b64, and sha3_224_b64u. iykyk — Perl gonna Perl. 🌀

my $sha3_224_raw = sha3_224('data string');
#or
my $sha3_224_raw = sha3_224('any data', 'more data', 'even more data');

🎀 sha3_224_hex

Joins all arguments into a single string and returns its SHA3_224 digest encoded as a hexadecimal string. Hexadecimal is so readable, honestly obsessed. 🔥

my $sha3_224_hex = sha3_224_hex('data string');
#or
my $sha3_224_hex = sha3_224_hex('any data', 'more data', 'even more data');

🦋 sha3_224_b64

Joins all arguments into a single string and returns its SHA3_224 digest encoded as a Base64 string, with trailing '=' padding. Padding has never looked so cute. 💖

my $sha3_224_b64 = sha3_224_b64('data string');
#or
my $sha3_224_b64 = sha3_224_b64('any data', 'more data', 'even more data');

🧚 sha3_224_b64u

Joins all arguments into a single string and returns its SHA3_224 digest encoded as a Base64 URL-safe string (see RFC 4648 section 5). URL-safe means it slays in links and filenames. periodt. 🌐

my $sha3_224_b64url = sha3_224_b64u('data string');
#or
my $sha3_224_b64url = sha3_224_b64u('any data', 'more data', 'even more data');

🍓 sha3_224_file

Reads a file given by a filename or filehandle and returns its SHA3_224 digest encoded as a binary string. File content, but make it cryptographic. 😭

my $sha3_224_raw = sha3_224_file('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $sha3_224_raw = sha3_224_file($filehandle);

🌸 sha3_224_file_hex

Reads a file given by a filename or filehandle and returns its SHA3_224 digest encoded as a hexadecimal string. Hex girlies rise. 👑

my $sha3_224_hex = sha3_224_file_hex('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $sha3_224_hex = sha3_224_file_hex($filehandle);

Note: The filehandle must be in binary mode before you pass it to addfile(). Do not skip this, bestie. Binary mode is not optional. 💀

💜 sha3_224_file_b64

Reads a file given by a filename or filehandle and returns its SHA3_224 digest encoded as a Base64 string, with trailing '=' padding. Same energy, but Base64. 🎀

my $sha3_224_b64 = sha3_224_file_b64('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $sha3_224_b64 = sha3_224_file_b64($filehandle);

✨ sha3_224_file_b64u

Reads a file given by a filename or filehandle and returns its SHA3_224 digest encoded as a Base64 URL-safe string (see RFC 4648 section 5). URL-safe and unbothered. 🌈

my $sha3_224_b64url = sha3_224_file_b64u('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
my $sha3_224_b64url = sha3_224_file_b64u($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::SHA3_224->new();

🌟 new

my $d = Crypt::Digest::SHA3_224->new();

Fresh object, fresh start, main character energy. 🫶

🦋 clone

$d->clone();

Because sometimes you need a copy of your digest object and you're not about to share. 🙈

🎀 reset

$d->reset();

Wipes the slate clean so you can hash again. Rebirth era. 🌱

🔥 add

Appends data to the message. Returns the object itself (for chaining). Chaining is so satisfying, honestly.

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. (Yes, same rules as before. Consistency queen.) 👑

$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). File-to-digest pipeline, activated. 💫

$d->addfile('filename.dat');
#or
my $filehandle = ...; # existing binary-mode filehandle
$d->addfile($filehandle);

🌸 hashsize

$d->hashsize;
#or
Crypt::Digest::SHA3_224->hashsize();
#or
Crypt::Digest::SHA3_224::hashsize();

Three ways to ask the same question. Iconic flexibility. 💅

💖 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(). So yes, bestie, it's a one-way door until you reset. The digest said "I'm done" and meant it. 😭

my $result_raw = $d->digest();

🌈 hexdigest

Returns the digest encoded as a lowercase hexadecimal string. Like digest(), the first call finalizes the digest object. After that, it's reset o'clock or nothing. ⏰

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. Padding included, because we're polite. 💖

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. URL-safe and padding-free. She's low-maintenance but high-impact. ✨

my $result_b64url = $d->b64udigest();

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👀 SEE ALSO 👀

• CryptX, Crypt::Digest
• <https://en.wikipedia.org/wiki/SHA-3>

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okay that's the whole page, bestie 💖 no cap, you now know SHA3-224 better than most people know their own passwords. This gem is documented as perl v5.42.0 and dated 2026-05-11, so go forth and hash responsibly. 🫶🎀🦋