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World of signatures: Understanding the signatures of the adapter
In the field of blockchain technology, signatures play a key role in verifying the authenticity and ownership of digital resources. Two types of signatures are often discussed: public key signatures (also known as asymmetrical signatures) and private key signatures. Today we will examine the advanced type of signature, which is widely used in cryptocurrency transactions: adapter signatures.
Public key signatures
The signature of the public key is a kind of cryptographic signature that uses the private recipient’s key to sign the message. The process includes:
- The sender calculates the abbreviation of the message and sends it along with the public key.
- The recipient receives a message and calculates his abbreviation with a private key.
- By using the private recipient’s key, they verify that the calculated abbreviation corresponds to the original message.
Example: Imagine you want to send $ 100 to your friend. You create a message with the information “I sent $ 100” and I sign it using a public key (unique identifier). Your friend receives a message, uses his private key to verify the signature and confirms that the message really says that they have received $ 100 from you.
private key signatures
The signature of the private key is similar to the signature of the public key, but instead of sending the entire message, the sender signs only one element (such as the name of the recipient or other identification information). This approach has several advantages:
- SCALLING CLAIM : Private key signatures can support larger amounts of data without sacrificing security.
- Flexibility : You can create many private key signatures with the same public key, making it easier to manage and track digital resources.
Example: Suppose you want to send a message containing certain identification information (such as your name) along with 100 USD. You sign the entire message using a public key, and then use a separate private key to attach an identifier (e.g. “John Doe”).
adapter signatures
Now let’s immerse ourselves in the adapter signatures that are used in cryptocurrency transactions.
What is the adapter’s signature?
The adapter’s signature is a kind of digital signature that combines security benefits resulting from a private key signatures with the advantages of scalability of public key signatures. In other words, it allows you to send data without having to store a private key or signing the entire message.
How does the adapter signature work?
Here is a simplified example:
- You want to send some data (e.g. 100 USD) to someone who uses the adapter signatures.
- You create two adapter signatures: one public and one private.
- When sending data, you will use a public signature to sign it.
- The recipient receives a signed message and uses his private key to verify the signature.
Example
Imagine you are an exchange operator and you want to send $ 100 to the user. You create two adapter signatures: public signature A (PSA) and private signature B (PSB). The dog is used to send data, while PBSB is used to sign.
- You generate a public signature A ($ 100 signature).
- The recipient generates a private signature B (signs $ 100).
- When they receive a message from the dog, they verify that the calculated abbreviation fits the original 100 USD.
- To send data, you will use a dog to sign them and attach to the transaction.
Benefits for safety
The adapter signatures offer several security benefits compared to traditional private signatures:
- Decentralization : Adapters allow decentralized transactions without the requirement of central authorization to manage private keys.
- Flexibility : You can create many adapter signatures with various public keys, making it easier to track and manage digital resources.