Quote:
Originally Posted by markgamber
MD5 is used with encryption. It's been a while but I think it creates a undecryptable hash from provided input. An example might be you specify a password which is run through MD5 encryption using a specific key and the "garbage" output is stored. Later, you enter a password somewhere and it's run through MD5 encryption using the same key and the output is compared to that which was stored earlier. If they are the same, the correct password was entered but you can't take the hash and decrypt the original password from it.
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MD5 sums can also be used to verify file integrity. Not sure which Sprint is using outside of sniffing the TCP/IP session (if it will route over wifi) and checking what is being sent/received to shoot up the error.