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DSA is covered by U.S. patent 5,231,668, filed July 26, 1991 and now expired, and attributed to David W. Kravitz, [9] a former NSA employee. This patent was given to "The United States of America as represented by the Secretary of Commerce, Washington, D.C.", and NIST has made this patent available worldwide royalty-free. [10]
On March 29, 2011, two researchers published an IACR paper [9] demonstrating that it is possible to retrieve a TLS private key of a server using OpenSSL that authenticates with Elliptic Curves DSA over a binary field via a timing attack. [10] The vulnerability was fixed in OpenSSL 1.0.0e. [11]
In Microsoft's Active Directory the DSA is a collection of servers and daemon processes that run on Windows Server systems that provide various means for clients to access the Active Directory data store. [4] [5] Clients connect to an Active Directory DSA using various communications protocols:
A domain-specific architecture (DSA) is a programmable computer architecture specifically tailored to operate very efficiently within the confines of a given application domain. The term is often used in contrast to general-purpose architectures, such as CPUs , that are designed to operate on any computer program .
Ed25519 is designed to avoid implementations that use branch conditions or array indices that depend on secret data, [2]: 2 [1]: 40 in order to mitigate side-channel attacks. As with other discrete-log-based signature schemes, EdDSA uses a secret value called a nonce unique to each signature.
A data structure known as a hash table.. In computer science, a data structure is a data organization and storage format that is usually chosen for efficient access to data. [1] [2] [3] More precisely, a data structure is a collection of data values, the relationships among them, and the functions or operations that can be applied to the data, [4] i.e., it is an algebraic structure about data.
Based on (RHEL 9.10 Active Directory: Microsoft: Proprietary: 2000 2024, Nov 1 91 (WS 2025) Integrated on Windows Server Authorized Entities Directory (Æ-DIR) Michael Ströder Apache 2.0: Based on OpenLDAP with additional tools Apache Directory Server: Apache Software Foundation: Apache 2.0: 2006, Oct 2023, Oct 23 2.0.0-AM27 Apple Open ...
Here hash functions are defined as taking an arbitrary length message and producing a fixed size output that is virtually impossible to use for recreating the original message. Implementation MD5