Minimal length of encrypted data - which algorithm?



Hi,

I think it's a simplem question, but I cannot find in any description of any algorithm information about the minimal length of encrypted data.
I am interested in obtaining such an information for symmetric-key algorithms, like DES.
Is there any algorithm which ensures that the output will be at least i.e. 32 characters (bytes) long - no metter whether the input is long (i.e. 20 characters) or short (i.e. 1 character)?

Thanks in advance for your answers!


Best regards
Leszek
.