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The MTM-203 Cryptographic Module, designed for FIPS 140-2 compliance, offers secure, near real-time, over-the-air communications. The MTM-203 implements the following FIPS Approved Functions: Three-key Triple DES (FIPS 46-3), AES (FIPS 197), SHA-1 (FIPS 180-2), HMAC SHA-1 (FIPS 198), and PRNG (ANSI X9.31 Appendix A.2.4) operation.