[throwasehasdwi]

I'm not a crypto expert and I'm sure even if I was it would be difficult to explain. Wiki page on SRP has a good description though:

Like all PAKE protocols, an eavesdropper or man in the middle cannot obtain enough information to be able to brute force guess a password without further interactions with the parties for each guess.

In layman's terms, given two parties who both know a password, SRP (or any other PAKE protocol) is a way for one party (the "client" or "user") to demonstrate to another party (the "server") that they know the password, without sending the password itself, nor any other information from which the password can be broken. Further, it is not possible to conduct an offline brute force search for the password.

https://en.wikipedia.org/wiki/Secure_Remote_Password_protoco...