Cryptographic Algorithms Support on Mobile Devices

[asharif1990]

It is important to check the support of reported cryptographic algorithms in Cryptograhic Algorithms Section by the mobile devices. Based on the observation made by @fventola-ipzs we know the following:

• Android 6+ and iOS 13+ supports the Elliptic Curve Digital Signature Algorithm only with the NIST Curve.
• For the Elliptic Curve Digital Signature Algorithm with the Brainpool Curve, we need to rely on the external libraries. In Android are implemented with BouncyCastle and in iOS with Swift extension wrapper.

I would recommend adding these observations as a note in the cryptographic algorithms section. What do you think about it? @peppelinux @fventola-ipzs @balanza @grausof

[peppelinux]

@asharif1990 I've tagged this wallet-solution

[fmarino-ipzs]

@asharif1990 I've tagged this wallet-solution

Then I move this issue to Milestone 0.7

[peppelinux]

During the call of the 6 March 2024 the group has requested @fventola-ipzs and @grausof to get aligned for the resolution of this issue

[grausof]

It is not possible to use external libraries in conjunction with TEE or Secure Enclave as the signature algorithms and securely generated keys within the hardware are defined by the hardware itself. For example, for iOS, only NIST P-256 elliptic curve keys are supported for signing. For verification there is no problem in use. https://developer.apple.com/documentation/security/certificate_key_and_trust_services/keys/protecting_keys_with_the_secure_enclave