feat: blind signature

[dj8yfo]

resolves #13

(header template taken from https://github.com/LedgerHQ/app-near/commit/294072a8682f5cb1a15b0e375e003c36683b5d62)

• [ ] App update process has been followed
  • [x] functional tests
  • [ ] a security audit (@frol might contact @firatNEAR to include this update into the same security audit cycle as #30 )
• [x] Target branch is develop
• [x] Application version has been bumped (to 1.3.0 in https://github.com/LedgerHQ/app-near/pull/32/commits/eb55d10ccff3d2862353fd347356f606be769784)

• tested
  • [x] nanos (device)
  • [x] nanosp (Speculos)
  • [x] nanox (Speculos)
  • [x] stax (Speculos)

Below is an example of added flow on Nano Stax

stax

       

[dj8yfo]

redundantly cross-referencing with https://github.com/near/near-cli-rs/pull/259 as well

[dj8yfo]

converted this to draft, as hash has to be printed in base58 instead of hex

[dj8yfo]

rebased this on top of #34