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/ Crypt::Digest::SHA512_224
Security Advisories (4)
CVE-2018-25099 (2018-10-26)

A user can pass anything as the tag into gcm_decrypt_verify() and it will return decrypted plaintext.

CVE-2025-40912 (2025-06-11)

CryptX for Perl before version 0.065 contains a dependency that may be susceptible to malformed unicode. CryptX embeds the tomcrypt library. The versions of that library in CryptX before 0.065 may be susceptible to CVE-2019-17362.

CVE-2025-40914 (2025-06-11)

Perl CryptX before version 0.087 contains a dependency that may be susceptible to an integer overflow. CryptX embeds a version of the libtommath library that is susceptible to an integer overflow associated with CVE-2023-36328.

CVE-2026-41564 (2026-04-23)

CryptX versions before 0.088 for Perl do not reseed the Crypt::PK PRNG state after forking. The Crypt::PK::RSA, Crypt::PK::DSA, Crypt::PK::DH, Crypt::PK::ECC, Crypt::PK::Ed25519 and Crypt::PK::X25519 modules seed a per-object PRNG state in their constructors and reuse it without fork detection. A Crypt::PK::* object created before `fork()` shares byte-identical PRNG state with every child process, and any randomized operation they perform can produce identical output, including key generation. Two ECDSA or DSA signatures from different processes are enough to recover the signing private key through nonce-reuse key recovery. This affects preforking services such as the Starman web server, where a Crypt::PK::* object loaded at startup is inherited by every worker process.

NAME

Crypt::Digest::SHA512_224 - Hash function SHA-512/224 [size: 224 bits]

SYNOPSIS

### Functional interface:
use Crypt::Digest::SHA512_224 qw( sha512_224 sha512_224_hex sha512_224_b64 sha512_224_b64u
                             sha512_224_file sha512_224_file_hex sha512_224_file_b64 sha512_224_file_b64u );

# calculate digest from string/buffer
$sha512_224_raw  = sha512_224('data string');
$sha512_224_hex  = sha512_224_hex('data string');
$sha512_224_b64  = sha512_224_b64('data string');
$sha512_224_b64u = sha512_224_b64u('data string');
# calculate digest from file
$sha512_224_raw  = sha512_224_file('filename.dat');
$sha512_224_hex  = sha512_224_file_hex('filename.dat');
$sha512_224_b64  = sha512_224_file_b64('filename.dat');
$sha512_224_b64u = sha512_224_file_b64u('filename.dat');
# calculate digest from filehandle
$sha512_224_raw  = sha512_224_file(*FILEHANDLE);
$sha512_224_hex  = sha512_224_file_hex(*FILEHANDLE);
$sha512_224_b64  = sha512_224_file_b64(*FILEHANDLE);
$sha512_224_b64u = sha512_224_file_b64u(*FILEHANDLE);

### OO interface:
use Crypt::Digest::SHA512_224;

$d = Crypt::Digest::SHA512_224->new;
$d->add('any data');
$d->addfile('filename.dat');
$d->addfile(*FILEHANDLE);
$result_raw  = $d->digest;     # raw bytes
$result_hex  = $d->hexdigest;  # hexadecimal form
$result_b64  = $d->b64digest;  # Base64 form
$result_b64u = $d->b64udigest; # Base64 URL Safe form

DESCRIPTION

Provides an interface to the SHA512_224 digest algorithm.

EXPORT

Nothing is exported by default.

You can export selected functions:

use Crypt::Digest::SHA512_224 qw(sha512_224 sha512_224_hex sha512_224_b64 sha512_224_b64u
                                    sha512_224_file sha512_224_file_hex sha512_224_file_b64 sha512_224_file_b64u);

Or all of them at once:

use Crypt::Digest::SHA512_224 ':all';

FUNCTIONS

sha512_224

Logically joins all arguments into a single string, and returns its SHA512_224 digest encoded as a binary string.

$sha512_224_raw = sha512_224('data string');
#or
$sha512_224_raw = sha512_224('any data', 'more data', 'even more data');

sha512_224_hex

Logically joins all arguments into a single string, and returns its SHA512_224 digest encoded as a hexadecimal string.

$sha512_224_hex = sha512_224_hex('data string');
#or
$sha512_224_hex = sha512_224_hex('any data', 'more data', 'even more data');

sha512_224_b64

Logically joins all arguments into a single string, and returns its SHA512_224 digest encoded as a Base64 string, with trailing '=' padding.

$sha512_224_b64 = sha512_224_b64('data string');
#or
$sha512_224_b64 = sha512_224_b64('any data', 'more data', 'even more data');

sha512_224_b64u

Logically joins all arguments into a single string, and returns its SHA512_224 digest encoded as a Base64 URL Safe string (see RFC 4648 section 5).

$sha512_224_b64url = sha512_224_b64u('data string');
#or
$sha512_224_b64url = sha512_224_b64u('any data', 'more data', 'even more data');

sha512_224_file

Reads file (defined by filename or filehandle) content, and returns its SHA512_224 digest encoded as a binary string.

$sha512_224_raw = sha512_224_file('filename.dat');
#or
$sha512_224_raw = sha512_224_file(*FILEHANDLE);

sha512_224_file_hex

Reads file (defined by filename or filehandle) content, and returns its SHA512_224 digest encoded as a hexadecimal string.

$sha512_224_hex = sha512_224_file_hex('filename.dat');
#or
$sha512_224_hex = sha512_224_file_hex(*FILEHANDLE);

BEWARE: You have to make sure that the filehandle is in binary mode before you pass it as argument to the addfile() method.

sha512_224_file_b64

Reads file (defined by filename or filehandle) content, and returns its SHA512_224 digest encoded as a Base64 string, with trailing '=' padding.

$sha512_224_b64 = sha512_224_file_b64('filename.dat');
#or
$sha512_224_b64 = sha512_224_file_b64(*FILEHANDLE);

sha512_224_file_b64u

Reads file (defined by filename or filehandle) content, and returns its SHA512_224 digest encoded as a Base64 URL Safe string (see RFC 4648 section 5).

$sha512_224_b64url = sha512_224_file_b64u('filename.dat');
#or
$sha512_224_b64url = sha512_224_file_b64u(*FILEHANDLE);

METHODS

The OO interface provides the same set of functions as Crypt::Digest.

new

$d = Crypt::Digest::SHA512_224->new();

clone

$d->clone();

reset

$d->reset();

add

$d->add('any data');
#or
$d->add('any data', 'more data', 'even more data');

addfile

$d->addfile('filename.dat');
#or
$d->addfile(*FILEHANDLE);

add_bits

$d->add_bits($bit_string);   # e.g. $d->add_bits("111100001010");
#or
$d->add_bits($data, $nbits); # e.g. $d->add_bits("\xF0\xA0", 16);

hashsize

$d->hashsize;
#or
Crypt::Digest::SHA512_224->hashsize();
#or
Crypt::Digest::SHA512_224::hashsize();

digest

$result_raw = $d->digest();

hexdigest

$result_hex = $d->hexdigest();

b64digest

$result_b64 = $d->b64digest();

b64udigest

$result_b64url = $d->b64udigest();

SEE ALSO