The Schnorr digital signature scheme is attracting the interest of Bitcoin developers by huge benefits in terms of effectiveness and increased transactional network capacity. Each Bitcoin transaction carries a digital signature, which is what allows the network to verify that the person conducting the transaction is in possession of bitcoins transferred.

Schnorr is a cryptographic system of digital signatures and, as such, is a set of mathematical rules for creating such signature so that it cannot be linked with the private key and public key, but the first to be disclosed publicly, nor can be deductible while allowing verification.

When creating the virtual currency Bitcoin, the creator designed the Bitcoin protocol for keys and signatures creasen through the cryptographic scheme known as Elliptic Curve Digital Signature Algorithm (ECDSA) which it is a variant of the algorithm DSA operations employing points of elliptic curves which provides the same security as DSA but with smaller numbers, ie smaller keys and just as safe. But in the case of Bitcoin it was important because it reduces storage requirements and transmission and thus facilitates handling gives the keys.

One of the points which have generated interest from Bitcoin this cryptosystem is due to the implementation of Segregated Witnesses which can be introduced through a Soft Fork to regulate the risks of a Hard Fork, and being this last necessary to implement a change in the current Bitcoin protocol.

To generate this change would bring benefits such as faster and verification of signatures, it would reduce the size of firms (about 71-72 bytes to 64 bytes) and also allow multisignatures, this because several Schnorr signatures can be combined to create a unique signature that would validate several public keys, so that verification of this unique signature would be easier in these cases.

Currently there are other types of cryptographic schemes that could provide additional benefits to Bitcoin, but Schnorr which arouses more interest among developers thanks to its possible use in discrete algorithms and algorithms elliptic curve (which are those used by Bitcoin).

Source: OroyFinanzas

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