You will have to change login.keychain to foo.keychain or somesuch.) 3) When you run the above command, the system will ask for permission to use your keychain. In fact, I'm just going to go out on a limb and say it's practically impossible. security dump-keychain -d login.keychain > keychain.txt (If you have multiple keychains you should repeat this whole process once from step 2 onwards for. Now as wpa_supplicant uses an AES-based cipher, reversing that isn't going to be easy. This is how we obtained the large "password" above: wpa_passphrase įor example wpa_passphrase MySSID SomeSnazzyPassphrase!Īnd we have the PSK hashed created to be CEAF1EE4F3050D25F2EF057A66CFD4570559C95656450407136347B75960255E Here is an article that describes your question.Īlright, for example here is the password I used: SomeSnazzyPassphrase! And here it is in the keychain after iOS shares it to a Mac CEAF1EE4F3050D25F2EF057A66CFD4570559C95656450407136347B75960255Eīefore we understand how to reverse it, we must understand how we got there.įirst of all we're using a program called wpa_passphrase, which is used in combination of your SSID and Passphrase, to generate that long encoded string. You would need to reverse engineer or crack that intentional one way process to remove the password component of the end product. The summary answer is that the password doesn't need to be passed as the authentication can take advantage of a derived value that combines the SSID and the passphrase into a longish hexadecimal string (or value since everything is a number in the end) and stores that.
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