Your writing is either very silly or very literary, but for something, you can get the attention of others after you sit to the limit. . Below is extended information about signatures.

1. Write your name.

Chapter 19 of "The Strange Current Situation I've Witnessed for Twenty Years": "Jiuxuan asked for paper and pen, and asked everyone to sign and donate money." Bing Xin's "Wanqing Collection·In Memory of Zhenduo": "After the "Jian Pu" was printed, he even signed one and gave it to me." "Preface": "Recently, a friend showed me "Dayan River" published forty-two years ago and asked me to sign it as a souvenir. ”

2. Signature and signature.

"Tang Yulin Supplement 2" written by Wang Chen of the Song Dynasty: "Ci Gong said: 'Your name is not included in the notes this year.' If you check his signature, it will be signed by Cigong."[1]

Function

In real life, some methods (such as handwriting, fingerprints, etc.) have been used to prove the identity of the signer. This is because: the signature is trustworthy; cannot be forged; cannot be reused; cannot be repudiated; and the signed file cannot be changed. In the increasingly digital life, electronic documents will gradually replace paper documents and become the main body of information exchange. The way to prove that an electronic document is authored is to electronically sign the document by simulating an ordinary handwritten signature. Authors can identify themselves through digital signatures, and readers can verify the author's identity through digital signatures. Since the storage, transmission and processing of information are often carried out on open communication networks, information is more vulnerable to attacks from external or internal eavesdropping, interception, modification, forgery and replay. Therefore, digital signatures must have some special properties to resist these attacks.

As a cryptographic technology, digital signature has the following functions and properties: