Aggregate sig

[Hitenjain14]

Changes

Fixes

Tests

Tasks to complete before merging PR:

• [ ] Ensure system tests are passing. If not Run them manually to check for any regressions :clipboard:
• [ ] Do any new system tests need added to test this change? do any existing system tests need updated? If so create a PR at 0chain/system_test
• [ ] Merge your system tests PR to master AFTER merging this PR

Associated PRs (Link as appropriate):

• 0chain: https://github.com/0chain/0chain/pull/3078
• gosdk:
• system_test:
• zboxcli:
• zwalletcli:
• Other: ...

[service-0chain]

Manual system tests [failure] with the following config	config	value
tests skipped	false
system-tests
gosdk	NOT OVERRIDDEN
zboxcli
zwalletcli
0chain
blobber	feat/aggregate-sig
authorizer
0box
0dns

[codecov-commenter]

Codecov Report

Attention: 78 lines in your changes are missing coverage. Please review.

Comparison is base (3402040) 23.50% compared to head (5ac7041) 14.38%.

Files	Patch %	Lines
...e/go/0chain.net/blobbercore/challenge/challenge.go	0.00%	18 Missing :warning:
code/go/0chain.net/core/common/handler/worker.go	0.00%	16 Missing :warning:
code/go/0chain.net/blobbercore/challenge/worker.go	0.00%	13 Missing :warning:
code/go/0chain.net/core/encryption/keys.go	13.33%	12 Missing and 1 partial :warning:
code/go/0chain.net/blobbercore/challenge/entity.go	0.00%	7 Missing :warning:
...de/go/0chain.net/blobbercore/challenge/protocol.go	0.00%	5 Missing :warning:
...ain.net/validatorcore/storage/challenge_handler.go	0.00%	3 Missing :warning:
code/go/0chain.net/validatorcore/storage/models.go	62.50%	1 Missing and 2 partials :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## sprint-1.12 #1362 +/- ## =============================================== - Coverage 23.50% 14.38% -9.13% =============================================== Files 87 177 +90 Lines 10196 19912 +9716 =============================================== + Hits 2397 2865 +468 - Misses 7502 16689 +9187 - Partials 297 358 +61 ``` | [Flag](https://app.codecov.io/gh/0chain/blobber/pull/1362/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=0chain) | Coverage Δ | | |---|---|---| | [Unit-Tests](https://app.codecov.io/gh/0chain/blobber/pull/1362/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=0chain) | `14.38% <8.23%> (-9.13%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=0chain#carryforward-flags-in-the-pull-request-comment) to find out more.

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