# Stds for Single-key Cryptography

- ## Data Encryption Standard (DES)

  - Defined, endorsed and regulated by the Feds
  - Intended for trading partners within the U.S.
  - KMI process may allow export outside U.S.

- ## RSA - RC2 and RC4

  - Proprietary RSA standards
  - Intended for use when one or more partners is outside the U.S.

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