privacy-guides/how-to-create-encrypted-paper-backup/tests/shamir.exp

#!/usr/bin/expect

source ./test.exp

set passphrase "asdasd"
set secret "foo\nbar"

test_label "Should backup secret using Shamir Secret Sharing"

spawn qr-backup.sh --shamir-secret-sharing

expect {
  -re {Format USB flash drive \(y or n\)\?} {
    test_send "n\r"
  }
}

expect {
  -re {\[sudo\] password for pi:} {
    test_send "$env(password)\r"
  }
}

expect {
  -re {Please type secret and press enter, then ctrl\+d} {
    test_send "$secret\r"
    test_send "\x04"
  }
}

expect {
  -re {Please type secret and press enter, then ctrl\+d \(again\)} {
    test_send "$secret\r"
    test_send "\x04"
  }
}

expect {
  -re {Please type passphrase and press enter} {
    test_send "$passphrase\r"
  }
}

expect {
  -re {Please type passphrase and press enter \(again\)} {
    test_send "$passphrase\r"
  }
}

expect {
  -re {Show passphrase \(y or n\)\?} {
    test_send "n\r"
  }
}

expect {
  -re {Encrypting secret share 1 of 5…}
}

expect {
  -re {SHA512 short hash: .+?([a-f0-9]{8})} {
    set short_hash_1 $expect_out(1,string)
  }
}

expect {
  -re {Show SHA512 hash as QR code \(y or n\)\?} {
    test_send "n\r"
  }
}

expect {
  -re {Encrypting secret share 2 of 5…}
}

expect {
  -re {SHA512 short hash: .+?([a-f0-9]{8})} {
    set short_hash_2 $expect_out(1,string)
  }
}

expect {
  -re {Show SHA512 hash as QR code \(y or n\)\?} {
    test_send "n\r"
  }
}

expect {
  -re {Encrypting secret share 3 of 5…}
}

expect {
  -re {SHA512 short hash: .+?([a-f0-9]{8})} {
    set short_hash_3 $expect_out(1,string)
  }
}

expect {
  -re {Show SHA512 hash as QR code \(y or n\)\?} {
    test_send "n\r"
  }
}

expect {
  -re {Encrypting secret share 4 of 5…}
}

expect {
  -re {SHA512 short hash: .+?([a-f0-9]{8})} {
    set short_hash_4 $expect_out(1,string)
  }
}

expect {
  -re {Show SHA512 hash as QR code \(y or n\)\?} {
    test_send "n\r"
  }
}

expect {
  -re {Encrypting secret share 5 of 5…}
}

expect {
  -re {SHA512 short hash: .+?([a-f0-9]{8})} {
    set short_hash_5 $expect_out(1,string)
  }
}

expect {
  -re {Show SHA512 hash as QR code \(y or n\)\?} {
    test_send "n\r"
  }
}

expect {
  -re {Done} {
    test_ok
  }
  eof {
    test_failed
  }
}

test_label "Should restore secret using Shamir Secret Sharing"

spawn qr-restore.sh --images "$short_hash_1.jpg,$short_hash_2.jpg,$short_hash_5.jpg" --shamir-secret-sharing

expect {
  -re {\[sudo\] password for pi:} {
    test_send "$env(password)\r"
  }
}

expect {
  -re {Please type passphrase and press enter} {
    test_send "$passphrase\r"
  }
}

expect {
  -re {Show secret \(y or n\)\?} {
    test_send "y\r"
  }
}

expect {
  -re {Secret:\r\n((.|\r\n)+?)\r\nDone} {
    set restored_secret $expect_out(1,string)
  }
}

regsub -all {\033\[[0-9]*m(\017)?} $restored_secret {} restored_secret
regsub -all {\r} $restored_secret {} restored_secret

if { "$restored_secret" != "$secret" } {
  test_failed
} else {
  test_ok
}