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surface PRNG functionality in SDK #969

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graydon opened this issue Jun 12, 2023 · 0 comments · Fixed by #1023
Closed

surface PRNG functionality in SDK #969

graydon opened this issue Jun 12, 2023 · 0 comments · Fixed by #1023

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@graydon
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graydon commented Jun 12, 2023

There are some new host functions that should surface in the SDK now.
@masonforest masonforest mentioned this issue Jun 28, 2023
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@leighmcculloch leighmcculloch mentioned this issue Aug 25, 2023
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@leighmcculloch leighmcculloch mentioned this issue Sep 15, 2023
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github-merge-queue bot pushed a commit that referenced this issue Sep 16, 2023
@masonforest @leighmcculloch
Expose PRNG functions (#1023)
4efef11 
### What

Expose `prng_reseed`, `u64_in_inclusive_range` and `vec_shuffle` in the
SDK.

### Why

Exposing the PRNG functions in the SDK allows users to utilize
randomness provided by the host in their smart contracts.

### Known limitations

N/A

Close #969

-----

I added tests for `sha256` and `verify_sig_ed25519` while I was in here.
Let me know if those changes should be moved to a separate PR. I
considered adding a PRNG module separate from the `crypto` module. I
decided to keep them under `crypto` because there are only three
functions. Also this is also similar `getRandomValues` is a function
implemented within the [Web Crypto
API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Crypto_API) in
browsers.

---------

Co-authored-by: Leigh McCulloch <351529+leighmcculloch@users.noreply.github.com>
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Expose PRNG functions masonforest/rs-soroban-sdk
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@graydon