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  2. Shareholders' agreement - Wikipedia

    en.wikipedia.org/wiki/Shareholders'_agreement

    In most countries, registration of a shareholders' agreement is not required for it to be effective. Indeed, it is the perceived greater flexibility of contract law over corporate law that provides much of the raison d'être for shareholders' agreements.

  3. Secure Hash Algorithms - Wikipedia

    en.wikipedia.org/wiki/Secure_Hash_Algorithms

    SHA-2: A family of two similar hash functions, with different block sizes, known as SHA-256 and SHA-512. They differ in the word size; SHA-256 uses 32-bit words where SHA-512 uses 64-bit words. There are also truncated versions of each standard, known as SHA-224, SHA-384, SHA-512/224 and SHA-512/256. These were also designed by the NSA.

  4. X.509 - Wikipedia

    en.wikipedia.org/wiki/X.509

    The CA/Browser Forum has required serial number entropy in its Baseline Requirements Section 7.1 since 2011. [35] As of January 1, 2016, the Baseline Requirements forbid issuance of certificates using SHA-1. As of early 2017, Chrome [36] and Firefox [37] reject certificates that use SHA-1.

  5. Social Health Authority (Kenya) - Wikipedia

    en.wikipedia.org/wiki/Social_Health_Authority...

    The Social Health Authority (SHA) is a State Corporation of the Government of Kenya that is responsible for the provision and management of public health insurance within the Republic of Kenya. [1] The core business and mandate of the SHA is to provide accessible, affordable, sustainable and quality health insurance for all Kenyan citizens, and ...

  6. PKCS 1 - Wikipedia

    en.wikipedia.org/wiki/PKCS_1

    The PKCS #1 standard defines the mathematical definitions and properties that RSA public and private keys must have. The traditional key pair is based on a modulus, n, that is the product of two distinct large prime numbers, p and q, such that =.

  7. SHA-2 - Wikipedia

    en.wikipedia.org/wiki/SHA-2

    SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic hash functions designed by the United States National Security Agency (NSA) and first published in 2001. [3] [4] They are built using the Merkle–Damgård construction, from a one-way compression function itself built using the Davies–Meyer structure from a specialized block cipher.

  8. Cryptographic hash function - Wikipedia

    en.wikipedia.org/wiki/Cryptographic_hash_function

    SHA-2 basically consists of two hash algorithms: SHA-256 and SHA-512. SHA-224 is a variant of SHA-256 with different starting values and truncated output. SHA-384 and the lesser-known SHA-512/224 and SHA-512/256 are all variants of SHA-512. SHA-512 is more secure than SHA-256 and is commonly faster than SHA-256 on 64-bit machines such as AMD64.

  9. Digest access authentication - Wikipedia

    en.wikipedia.org/wiki/Digest_access_authentication

    Digest access authentication is one of the agreed-upon methods a web server can use to negotiate credentials, such as username or password, with a user's web browser.This can be used to confirm the identity of a user before sending sensitive information, such as online banking transaction history.