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  2. RSA (cryptosystem) - Wikipedia

    en.wikipedia.org/wiki/RSA_(cryptosystem)

    The RSA problem is defined as the task of taking e th roots modulo a composite n: recovering a value m such that c ≡ m e (mod n), where (n, e) is an RSA public key, and c is an RSA ciphertext. Currently the most promising approach to solving the RSA problem is to factor the modulus n .

  3. Digital signature - Wikipedia

    en.wikipedia.org/wiki/Digital_signature

    Digital signatures cryptographically bind an electronic identity to an electronic document and the digital signature cannot be copied to another document. Paper contracts sometimes have the ink signature block on the last page, and the previous pages may be replaced after a signature is applied.

  4. PKCS 1 - Wikipedia

    en.wikipedia.org/wiki/PKCS_1

    The signature schemes are actually signatures with appendix, which means that rather than signing some input data directly, a hash function is used first to produce an intermediary representation of the data, and then the result of the hash is signed. This technique is almost always used with RSA because the amount of data that can be directly ...

  5. Certificate signing request - Wikipedia

    en.wikipedia.org/wiki/Certificate_signing_request

    The signature constitutes a self-signature with the key pair of the applicant. Due to the self-signature requirement, this format is applicable only to types of keys that support signing. Yet there are variants of this format that do not include an actual signature, such as described in Appendix C.1 of RFC 5272 .

  6. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    A file signature is data used to identify or verify the content of a file. Such signatures are also known as magic numbers or magic bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible. However, some file signatures can be recognizable when ...

  7. Public-key cryptography - Wikipedia

    en.wikipedia.org/wiki/Public-key_cryptography

    The two best-known types of public key cryptography are digital signature and public-key encryption: In a digital signature system, a sender can use a private key together with a message to create a signature. Anyone with the corresponding public key can verify whether the signature matches the message, but a forger who does not know the ...

  8. Probabilistic signature scheme - Wikipedia

    en.wikipedia.org/wiki/Probabilistic_signature_scheme

    Probabilistic Signature Scheme (PSS) is a cryptographic signature scheme designed by Mihir Bellare and Phillip Rogaway. [1] RSA-PSS is an adaptation of their work and is standardized as part of PKCS#1 v2.1. In general, RSA-PSS should be used as a replacement for RSA-PKCS#1 v1.5.

  9. Digital Signature Standard - Wikipedia

    en.wikipedia.org/wiki/Digital_Signature_Standard

    It defines the Digital Signature Algorithm, contains a definition of RSA signatures based on the definitions contained within PKCS #1 version 2.1 and in American National Standard X9.31 with some additional requirements, and contains a definition of the Elliptic Curve Digital Signature Algorithm based on the definition provided by American ...

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