CODEWITHSUNDEEP
iphoneiosipadsecurityencryption
Seega
Seega

Reputation: 3390

Which crypto-algorithem uses iOS in NSDataWritingFileProtection and what is the keysize?

I need to know the crypto algorithm and key strength of NSDataWritingFileProtection. I would like to know the same things for using the Keychain and NSFileManager.

I searched the Apple Developer references:

But found noting specific.

The Advanced Encryption Standard Algorithm Validation List contains multiple entries of Apple using AES 128bit-256bit but nothing in connection to keychain or NSDataWritingOptions or NSFileManager

Thanks for your help, a better link to the documentation would fit my needs.

Upvotes: 1

Views: 256

Answers (1)

Seega
Seega

Reputation: 3390

Used that source iPhone in Business - Security Overview

AES-256bit in iPhone hardware encryption (page 3 Chapter Encryption)

Upvotes: 2

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