Java encryption Technology (VI)

Next we introduce the DSA digital signature, another implementation of asymmetric encryption.

Dsa

The Dsa-digital Signature algorithm is a variant of the Schnorr and ElGamal signature algorithm, which was used as a DSS (DigitalSignature Standard) by the United States NIST. Simply put, this is a more advanced form of authentication, used as a digital signature. Not only the public key, the private key, but also the digital signature. Private key encryption generates digital signatures, public key authentication data, and signatures. If the data and signature do not match, the validation fails! The role of a digital signature is to verify that the data is not modified during transmission. Digital signature, is a one-way encryption upgrade!