Sharing Notice: White The National Cryptographic Standards 1.3 Structure of the Document The rest of this document is organized as follows. Section 2 lists the accepted symmetric and asymmetric primitives with their key, block and initialization vector sizes. Section 3 provides the accepted symmetric and asymmetric schemes: block cipher modes of operation, MAC, AEAD, key wrap functions, key derivation functions, key agreement, key transport, hybrid encryption and public key signatures. Section 4 provides requirements for the most prevalent application protocols such as DNS Security (DNSSEC), IP Security (IPsec), Bluetooth, SSH, TLS, UMTS/LTE/5G, WPA and Kerberos. Section 5 provides a list of the accepted algorithms for certificates and the validity of the certificates. Section 6 provides the requirements for the different steps of the key lifecycle to ensure that keys are managed properly from the moment they are created until their destruction, and their usage is standardized across processes. Finally, Section 7 provides appendices that present some information about Pseudo Random Number Generation (PRNG), Post-Quantum Cryptography, Side-Channel Attacks, Definitions and Acronyms. 10 Document Classification: Open