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mcrypt_cbc
Encrypt/decrypt data in CBC mode
(PHP 4, PHP 5)
The first prototype is when linked against libmcrypt 2.2.x, the
second when linked against libmcrypt 2.4.x or higher. The
mode should be either
This function should not be used anymore, see mcrypt_generic() and mdecrypt_generic() for replacements. Code Examples / Notes » mcrypt_cbceric
I was able get php and perl to play together with blowfish using cipher block chaining. The blowfish key needs to be atleast 8 chars (even though blowfish min is 8 bits, perl didn't like keys smaller than 8 chars) and max 56. The iv must be exactly 8 chars and padding needs to be null because php pads with nulls. Also, php needs libmcrypt >= 2.4.9 to be compatible with perl. PERL ---- use Crypt::CBC; $cipher = Crypt::CBC->new( {'key' => 'my secret key', 'cipher'=> 'Blowfish', 'iv' => '12345678', 'regenerate_key' => 0, 'padding' => 'null', 'prepend_iv' => 0 }); $cc = 'my secret text'; $encrypted = $cipher->encrypt($cc); $decrypted = $cipher->decrypt($encrypted); print "encrypted : ".$encrypted; print " "; print "decrypted : ".$decrypted; PHP --- $cc = 'my secret text'; $encrypted = mcrypt_cbc(MCRYPT_BLOWFISH,'my secret key',$cc,MCRYPT_ENCRYPT,'12345678'); $decrypted = mcrypt_cbc(MCRYPT_BLOWFISH, 'my secret key', $encrypted, MCRYPT_DECRYPT,'12345678'); echo "encrypted : ".$encrypted; echo " "; echo "decrypted : ".$decrypted; 28-apr-2006 04:44
Here is a post similar to the one above, except this works for AES256 256 bit key and 128 bit block size... just make sure the $key variable is at least 48 characters long ---- PERL --- my $key = '12345678901234567890123456789012345678901234567890'; my $CC = '4007000000027'; # You need Crypt::Rijndael installed for this to work use Crypt::CBC; my $cipher = Crypt::CBC->new( {'key' => substr($key,0,32), 'cipher'=> 'Rijndael', 'iv' => substr($key,32,16), 'regenerate_key' => 0, 'padding' => 'null', 'prepend_iv' => 0 }); my $encrypted = $cipher->encrypt($CC); print "encrypted : ".$encrypted."\n"; print "decrypted : ".$cipher->decrypt($encrypted)."\n"; --- PHP --- $key = '123456789012345678901234567890123456789012345678901234567890'; $CC = '4007000000027'; $encrypted = mcrypt_cbc(MCRYPT_RIJNDAEL_128,substr($key,0,32) ,$CC,MCRYPT_ENCRYPT,substr($key,32,16)); $decrypted = mcrypt_cbc(MCRYPT_RIJNDAEL_128,substr($key,0,32) ,$encrypted,MCRYPT_DECRYPT,substr($key,32,16)); echo "encrypted : ".bin2hex($encrypted); |
Change Languagemcrypt_cbc mcrypt_cfb mcrypt_create_iv mcrypt_decrypt mcrypt_ecb mcrypt_enc_get_algorithms_name mcrypt_enc_get_block_size mcrypt_enc_get_iv_size mcrypt_enc_get_key_size mcrypt_enc_get_modes_name mcrypt_enc_get_supported_key_sizes mcrypt_enc_is_block_algorithm_mode mcrypt_enc_is_block_algorithm mcrypt_enc_is_block_mode mcrypt_enc_self_test mcrypt_encrypt mcrypt_generic_deinit mcrypt_generic_end mcrypt_generic_init mcrypt_generic mcrypt_get_block_size mcrypt_get_cipher_name mcrypt_get_iv_size mcrypt_get_key_size mcrypt_list_algorithms mcrypt_list_modes mcrypt_module_close mcrypt_module_get_algo_block_size mcrypt_module_get_algo_key_size mcrypt_module_get_supported_key_sizes mcrypt_module_is_block_algorithm_mode mcrypt_module_is_block_algorithm mcrypt_module_is_block_mode mcrypt_module_open mcrypt_module_self_test mcrypt_ofb mdecrypt_generic |