> For the complete documentation index, see [llms.txt](https://docs.bitoftrade.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bitoftrade.com/for-developers/cross-chain-messaging-protocol/advanced.md).

# Advanced

If you are familiar with CCMP protocol you can dive deeper to better understand how the Signer Service works under the hood. 

Consider the [Threshold Signature](/for-developers/cross-chain-messaging-protocol/advanced/threshold-signature.md) section to become familiar with the TSS protocol, which is used by our [Signer Service](/for-developers/cross-chain-messaging-protocol/how-it-works/signer-service.md).

Also, take a look at the [Hosted TSS Signer](/for-developers/cross-chain-messaging-protocol/advanced/hosted-tss-signer.md) section to know how and why Hosted TSS Signer can be used for your dApp to make it even more secure.