So it was created to really be a better, cheaper, more-secure retaliation against the garbage cost of texting. The difference is that telcos charge an obscene amount for the data that SMS uses (if you don't have a texting plan). Yes, it does use data, but like SMS, it uses a very minute amount of data (unless you send a photo, video, or audio file). You can use iMessage with any Apple device that has iMessage available, including iPads, iPods, iPhones, and Macs. It's also what makes messaging work on devices that may not have a texting plan, like iPads and iPods. It's great for people with a lot of contacts who have Apple devices and text limits on their plan, or for people with friends in other countries they'd like to text but don't want to pay the outrageous price carriers charge for the service. IMessages are unlimited, meaning there is no limit to the number of iMessages you can send. Or you can turn it on if you want iMessage to send as a text if, for some reason, there's a problem with the iMessage service. You can turn off "Send as SMS when iMessage is not available" in the Messages settings to prevent iMessage from sending an iMessage as a text message. IMessages only use data if your device is not connected to wifi. IMessages can be sent using a phone number or an email address.
As such, an iMessage can only be sent to someone else with an Apple device who has iMessage turned on. IMessage is the ability to send a text using Apple's servers instead of your carrier's texting plan. So, while a good guess, encryption doesn't add much overhead (at least with the cipher they're using). 8.W.L.U.!.o.Įncryption added 12 bytes, which is padding to a multiple of the encryption function. Then encrypt AES-128 in CBC mode using a bullshit key and IV: $ openssl enc -aes-128-cbc -e -in message -out message.encrypted \ They probably add a bit of control data so 84 bytes is a good guess for something like "lol" as an extreme case. > Do you think you'll be home for supper? $ cat >message Hello, this is probably a typical iMessage. This subreddit is not endorsed or sponsored by Apple Inc. If you'd like to view their content together, click here. This fundamental difference in audience is why we support two communities, r/Apple and r/AppleHelp. Apple SubredditsĬontent which benefits the community (news, rumors, and discussions) is valued over content which benefits only the individual (technical questions, help buying/selling, rants, etc.).
#HOW TO TURN OFF IMESSAGE WHEN NOT ON WIFI UPGRADE#
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