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Projects

Showing 3 matching records.
Block Cipher Techniques
Approved Algorithms Currently, there are two (2) Approved* block cipher algorithms that can be used for both applying cryptographic protection (e.g., encryption) and removing or verifying the protection that was previously applied (e.g., decryption): AES and Triple DES. Two (2) other block cipher algorithms were previously approved: DES and Skipjack; however, their approval has been withdrawn. See the discussions below for further information; also see SP 800-131A Rev. 2, Transitioning the Use...
Message Authentication Codes MAC
The message authentication code (MAC) is generated from an associated message as a method for assuring the integrity of the message and the authenticity of the source of the message.  A secret key to the generation algorithm must be established between the originator of the message and its intended receiver(s). Approved Algorithms Currently, there are three approved* general-purpose MAC algorithms:  HMAC, KMAC, and CMAC. Keyed-Hash Message Authentication Code (HMAC) The initial...
Multi-Party Threshold Cryptography MPTC
The multi-party paradigm of threshold cryptography enables threshold schemes, which apply principles of secure multiparty computation (MPC) to achieve protocols that enable a secure distribution of trust in the operation of cryptographic primitives. Threshold schemes can be applied to NIST standardized primitives/schemes, and beyond. The technical scope of the MPTC-project includes threshold schemes (for signatures, public-key encryption/decryption, ciphers, hashing, fully-homomorphic encryption...