Type 1 encryption

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In cryptography, a Type 1 product is a device or system certified by the National Security Agency (NSA) for use in cryptographically securing classified U.S. Government information.

Type 1 certification is a rigorous process that includes testing and formal analysis of (among other things) cryptographic security, functional security, tamper resistance, emissions security (EMSEC/TEMPEST), and security of the product manufacturing and distribution process.

For a historically-oriented list of NSA encryption products (most of them Type 1), see NSA encryption systems. For algorithms that NSA has participated in the development of, see NSA cryptography.

Types 1 through 4 are defined in the National Information Assurance Glossary (CNSSI No. 4009) which defines Type 1, Type 2, Type 3, and Type 4 products and keys.

A Type 1 product is defined as:

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