Information regarding algorithm of Bitcoin transactions

[mahajanrahul93]

Hello everyone,

I need your help to know about bitcoin transactions.

I need to know is there any type of transaction in bitcoin that uses double key to protect the information?

I will explain the question in more detail using one example.

Suppose there are two parties A and B.

Suppose during the transaction, B sends to A a data locking with his public key. A then uses his private key to lock the data again. A then sends back the data to B. This type of locking would ensure that neither A and B can tamper with the data. After the transaction is completed, A gives his public key to B. Now B can access the data as he/she can open with A,s public key and his own private key.

Thanks & Regards,
Mahajanrahul

[TomZ]

What you are looking for is likely this ; https://bitcoinfactswiki.github.io/Multisignature/