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2. Digital signature - Wikipedia

   en.wikipedia.org/wiki/Digital_signature

   Formally, a digital signature scheme is a triple of probabilistic polynomial time algorithms, (G, S, V), satisfying: G (key-generator) generates a public key (pk), and a corresponding private key (sk), on input 1 n, where n is the security parameter. S (signing) returns a tag, t, on the inputs: the private key (sk), and a string (x).

3. Public key certificate - Wikipedia

   en.wikipedia.org/wiki/Public_key_certificate

   Key Usage: The valid cryptographic uses of the certificate's public key. Common values include digital signature validation, key encipherment, and certificate signing. Extended Key Usage: The applications in which the certificate may be used. Common values include TLS server authentication, email protection, and code signing.

4. Public key infrastructure - Wikipedia

   en.wikipedia.org/wiki/Public_key_infrastructure

   An American Bar Association technology project published an extensive analysis of some of the foreseeable legal aspects of PKI operations (see ABA digital signature guidelines), and shortly thereafter, several U.S. states (Utah being the first in 1995) and other jurisdictions throughout the world began to enact laws and adopt regulations.

5. X.509 - Wikipedia

   en.wikipedia.org/wiki/X.509

   An X.509 certificate binds an identity to a public key using a digital signature. A certificate contains an identity (a hostname, or an organization, or an individual) and a public key (RSA, DSA, ECDSA, ed25519, etc.), and is either signed by a certificate authority or is self-signed.

6. Digital Signature Algorithm - Wikipedia

   en.wikipedia.org/wiki/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, a pair of private and public keys are created: data encrypted with either key can ...

7. Code signing - Wikipedia

   en.wikipedia.org/wiki/Code_signing

   These guidelines are based on the CA/B Forum's Baseline Requirements and Extended Validation Guidelines. In addition to validation requirements specific to EV, the EV code signing guidelines stipulate that "the Subscriber's private key is generated, stored and used in a crypto module that meets or exceeds the requirements of FIPS 140-2 level 2 ...