Replace BouncyCastle if possible

[rubo]

Explore the possibility of replacing the BouncyCastle implementations with .NET's own ones or with already existing ones if any:

• [ ] RandomContractTxSource.cs
• [ ] EciesCipher.cs
• [ ] EthereumIesEngine.cs
• [ ] Ripemd.cs
• [x] EncryptionSecrets.cs
• [x] FrameCipher.cs
• [x] FrameMacProcessor.cs
• [x] HandshakeService.cs

[tanishqjasoria]

why do we want to do this?

[tanishqjasoria]

Also, would it be a good idea to separate our cryptography implementations (like Keccak, Blake2Avx2, etc) in a separate library? I also would be adding things related to verkle trees.

[rubo]

why do we want to do this?

For performance reasons.

Also, would it be a good idea to separate our cryptography implementations (like Keccak, Blake2Avx2, etc) in a separate library? I also would be adding things related to verkle trees.

There already is Nethermind.Crypto for that.

[tanishqjasoria]

For performance reasons.

when I was trying to implement verkle trees, i counld not find a better library for crypto in .net.

There already is Nethermind.Crypto for that.

I meant like a seperate nuget package

[rubo]

when I was trying to implement verkle trees, i counld not find a better library for crypto in .net.

BouncyCastle is very rich, you can find almost anything there. But not necessarily the most performant.

I meant like a seperate nuget package

That's also an option, especially if we need it in other projects as well.