Initial ideas

• It would be cool if multiple ciphers could be used. For example, encrypt using both SHA1 and SHA256, or SHA512 and WHIRLPOOL. While this technically wouldn't improve the security, as a weak password would still be just as weak, it would make brute forcing a lot harder. There would have to be some flag that would tell SHACrypt which algorithms to use (perhaps a 32 or 64 bit integer used bit-by-bit?)
• I've toyed around with the idea of moving bytes around, but it's pretty much unfeasible with asymmetric encryption.