I was using Crypt::CBC successfully for a long time, then when the server apache was upgraded all of a sudden I get this error:

Ciphertext does not begin with a valid header for 'salt' header mode

Here is my encryption and decryption subroutine: 

sub encrypt
{
my $plaintext = shift;
my $key = "lkjsdfkjkalsjdfn239asdifh4389jbaksdf
09324ni5ansdkfn2193rjlkasndfkn239jas
dknsd23r09jasdflknasdi823oiasdflknas
dlkn3249ijasdfknoi2oinklnsd9u345knfv
knnalknq234ij9rnadks0934klajlkjdsnkl
ansdkjsdimnvnkansdkj43938hiohsakasoi
jwenkasdlknaskdiojiqwejoinasdlknqweo
inasdlknf9034pojfjasdflknvlknasflkjn
asddasflknewfqo9ijwernasdlknasdflkj2
eijasdlnasdknvkxlcvnaslkjqwerknzxvcm
nweoiuwr098u345oijsfdlkn241389asdfr0
9u34oijasdfklnvsdoi32098u34oisdfklas
fdklnasdk934nzslzWQPLIWNCZAEI30SN20S";


my $cipher = Crypt::CBC->new( -key    => $key,
                             -cipher => 'Blowfish',
                             -salt   => 1
                           );

    return ($cipher->encrypt_hex ($plaintext));
}

sub decrypt
{
my $ciphertext = shift;
my $key = "lkjsdfkjkalsjdfn239asdifh4389jbaksdf
09324ni5ansdkfn2193rjlkasndfkn239jas
dknsd23r09jasdflknasdi823oiasdflknas
dlkn3249ijasdfknoi2oinklnsd9u345knfv
knnalknq234ij9rnadks0934klajlkjdsnkl
ansdkjsdimnvnkansdkj43938hiohsakasoi
jwenkasdlknaskdiojiqwejoinasdlknqweo
inasdlknf9034pojfjasdflknvlknasflkjn
asddasflknewfqo9ijwernasdlknasdflkj2
eijasdlnasdknvkxlcvnaslkjqwerknzxvcm
nweoiuwr098u345oijsfdlkn241389asdfr0
9u34oijasdfklnvsdoi32098u34oisdfklas
fdklnasdk934nzslzWQPLIWNCZAEI30SN20S";

my $cipher = Crypt::CBC->new( -key    => $key,
                             -cipher => 'Blowfish',
                             -salt   => 1
                           );

    return ($cipher->decrypt_hex ($ciphertext));
}

[download]
Of course I changed the key to a test one, but that is not the problem, my key did not change at all... in fact nothing at all changed... only the server was upgraded...

My question is this, is there a way to recover from this? There is a lot of information encrypted in my database, passwords of members and so forth, so I need to recover this instead of just having to start over. I have used this method for at least 4 years, maybe 3 but seems like 4 or 5.

Thank you much,
Richard

In reply to Crypt::CBC, Blowfish and Salt problem by Anonymous Monk

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