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Definition. A digital signature scheme typically consists of three algorithms: A key generation algorithm that selects a private key uniformly at random from a set of possible private keys. The algorithm outputs the private key and a corresponding public key. A signing algorithm that, given a message and a private key, produces a signature.
Digital Signature Algorithm. The Digital Signature Algorithm (DSA) is a public-key cryptosystem and Federal Information Processing Standard for digital signatures, based on the mathematical concept of modular exponentiation and the discrete logarithm problem. In a public-key cryptosystem, two keys are generated: data can only be encrypted with ...
An electronic signature, or e-signature, is data that is logically associated with other data and which is used by the signatory to sign the associated data. [1] [2] [3] This type of signature has the same legal standing as a handwritten signature as long as it adheres to the requirements of the specific regulation under which it was created (e.g., eIDAS in the European Union, NIST-DSS in the ...
An Indonesian passport (Indonesian: Paspor Indonesia) is a travel document issued by the Government of Indonesia to Indonesian citizens residing in Indonesia or overseas. The main governing body with regards to the issuance of such passport(s), possession(s), withdrawal and related matters is the Directorate General of Immigration (Direktorat Jenderal Imigrasi) under the Ministry of Law and ...
As with elliptic-curve cryptography in general, the bit size of the private key believed to be needed for ECDSA is about twice the size of the security level, in bits. [1] For example, at a security level of 80 bits—meaning an attacker requires a maximum of about operations to find the private key—the size of an ECDSA private key would be ...
Signal for Help. The Signal for Help (or the Violence at Home Signal for Help) is a single-handed gesture that can be used over a video call or in person by an individual to alert others that they feel threatened and need help. [1] Originally, the signal was created as a tool to combat the rise in domestic violence cases around the world linked ...
Structure. Elliptic-curve cryptography. In public-key cryptography, Edwards-curve Digital Signature Algorithm (EdDSA) is a digital signature scheme using a variant of Schnorr signature based on twisted Edwards curves. [1] It is designed to be faster than existing digital signature schemes without sacrificing security.
The Republic of China national identification card (Chinese: 中華民國國民身分證; pinyin: Zhōnghuámínguó Guómín Shēnfènzhèng; Pe̍h-ōe-jī: Tiong-hôa-bîn-kok Kok-bîn Sin-hun-chèng), commonly known as the national identification card of Taiwan, is a compulsory identity document issued to people who hold both nationality and household registration in Taiwan.