man > Crypt::Cipher::SEED(3pm)

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🏷️ NAME

Crypt::Cipher::SEED - Symmetric cipher SEED, key size: 128 bits

🚀 Quick Reference

Use Case	Command	Description
🔐 Encrypt data with CBC mode	Crypt::Mode::CBC->new('SEED')	Use CBC mode for encryption
🔓 Decrypt data with CBC mode	Crypt::Mode::CBC->new('SEED')	Use CBC mode for decryption
🔑 Get cipher keysize	Crypt::Cipher::SEED->keysize	Returns 16 bytes (128 bits)
📦 Get cipher blocksize	Crypt::Cipher::SEED->blocksize	Returns 16 bytes
🔄 Get default rounds	Crypt::Cipher::SEED->default_rounds	Returns number of rounds

📋 SYNOPSIS

### example 1
use Crypt::Mode::CBC;

my $key = '...'; # length has to be valid key size for this cipher
my $iv = '...';  # 16 bytes
my $cbc = Crypt::Mode::CBC->new('SEED');
my $ciphertext = $cbc->encrypt("secret data", $key, $iv);

### example 2 (slower)
use Crypt::CBC;
use Crypt::Cipher::SEED;

my $key = '...'; # length has to be valid key size for this cipher
my $iv = '...';  # 16 bytes
my $cbc = Crypt::CBC->new( -cipher=>'Cipher::SEED', -key=>$key, -iv=>$iv );
my $ciphertext = $cbc->encrypt("secret data");

📝 DESCRIPTION

This module implements the SEED cipher. Provided interface is compliant with Crypt::CBC module.

⚠️ BEWARE: This module implements just elementary "one-block-(en|de)cryption" operation - if you want to encrypt/decrypt generic data you have to use some of the cipher block modes - check for example Crypt::Mode::CBC, Crypt::Mode::CTR or Crypt::CBC (which will be slower).

🔧 METHODS

🔑 new

$c = Crypt::Cipher::SEED->new($key);
#or
$c = Crypt::Cipher::SEED->new($key, $rounds);

🔒 encrypt

$ciphertext = $c->encrypt($plaintext);

🔓 decrypt

$plaintext = $c->decrypt($ciphertext);

📏 keysize

$c->keysize;
#or
Crypt::Cipher::SEED->keysize;
#or
Crypt::Cipher::SEED::keysize;

📐 blocksize

$c->blocksize;
#or
Crypt::Cipher::SEED->blocksize;
#or
Crypt::Cipher::SEED::blocksize;

📈 max_keysize

$c->max_keysize;
#or
Crypt::Cipher::SEED->max_keysize;
#or
Crypt::Cipher::SEED::max_keysize;

📉 min_keysize

$c->min_keysize;
#or
Crypt::Cipher::SEED->min_keysize;
#or
Crypt::Cipher::SEED::min_keysize;

🔄 default_rounds

$c->default_rounds;
#or
Crypt::Cipher::SEED->default_rounds;
#or
Crypt::Cipher::SEED::default_rounds;

👀 SEE ALSO

• 🔗 CryptX, Crypt::Cipher
• 🌐 https://en.wikipedia.org/wiki/SEED

🏷️ NAME 🚀 Quick Reference 📋 SYNOPSIS 📝 DESCRIPTION 🔧 METHODS 👀 SEE ALSO