I know I'm being a bit pedantic here, but both bcrypt and SHA1 are cryptographic hash functions. So please, do use hashes for this, just realize that some hash

I know I'm being a bit pedantic here, but both bcrypt and SHA1 are cryptographic hash functions. So please, do use hashes for this, just realize that some hashes will be far more secure (like bcrypt) than others (like SHA1 or, FSM-forbid, MD5).