On Friday, WhatsApp announced that it will give support for cloud-based encrypted chat backups for Android and iOS users, paving the way for cryptographically secure information storage such as chat messages and photos within Apple iCloud or Google Drive.

Using these Whatsapp chat backups on Apple iCloud or Google Drive is one of the best option to secure their backups and have the ways of law enforcement agencies around the globe have been able to suspects Whatsapp chats for years.

The privacy preservation technologies have created impenetrable barriers to comply with legal requirements for access the digital information that is stored on smart phones and the cloud is termed as “Going Dark”.

“People’s messages are deeply personal and as we live more of our lives online, we believe companies should enhance the security they provide their users. By releasing this feature, we are providing our users with the option to add this additional layer of security for their backups if they’d like to, and we’re excited to give our users a meaningful advancement in the safety of their personal messages,” reads the blogpost.

Facebook’s chief executive Mark Zuckerberg reported the post that “WhatsApp is the first global messaging service at this scale to offer end-to-end encrypted messaging and backups, and getting there was a really hard technical challenge that required an entirely new framework for key storage and cloud storage across operating systems.”

 The company said it has devised a system to enable WhatsApp users on Android and iOS to lock their chat backups with encryption keys. WhatsApp says it will offer users two ways to encrypt their cloud backups, and the feature is optional.

Whatsapp has created an HSM basrd backup key vault to Store per used E2EE in tamper resistant storage,ensure that it was a stronger security of users ‘ Message History’. Before  storing backups in the cloud, the users encrypted all the datas such as text,photos,videos etc and backed up using a random key that’s generated on the user’s device.

WhatsApp will see an option to generate a 64-digit encryption key to lock their chat backups in the cloud. Users can store the encryption key in a password manager or they can create a password that backs up their encryption key in a cloud-based “backup key vault” . Once a user sets their backup password, they can reset it on their original device if they forget it.

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