STU-I

STU-I secure telephone desk set. Electronics were housed in a separate cabinet.

The STU-I, like its successors sometimes known as a "stew phone", was a secure telephone developed by the U.S. National Security Agency for use by senior U.S. government officials in the 1970s.

STU-I cabinet with desk set on top. The person talking is U.N. Ambassador Andrew Young, calling from New York City during the Israel-Egypt peace talks in the Carter administration.

See also

• KY-3
• Navajo I
• STU-II
• STU-III
• SCIP

External links

• Delusion.org - National Cryptologic Museum pictures

Cipher machines Rotor machines CCM Enigma M-125 Fialka Hebern HX-63 KL-7 Lacida M-325 Mercury NEMA OMI Portex RED SIGABA SIGCUM Singlet Typex Mechanical Bazeries cylinder C-36 C-52 CD-57 Cipher disk HC-9 Kryha Jefferson disk M-94 M-209 Reihenschieber Scytale Teleprinter 5-UCO BID 770 DUDEK KW-26 KW-37 Lorenz SZ 40/42 Siemens and Halske T52 Secure voice BID 150 FASCINATOR KY-3 KY-57 KY-58 KY-68 NESTOR OMNI SCIP Sectéra Secure Module SIGSALY STE STU-II STU-III VINSON Other JADE KG-84 KL-43 KL-51 Noreen PURPLE GREEN（Japanese：-{グリーン暗号}-） Pinwheel Rockex Cryptography History of cryptography Cryptanalysis Outline of cryptography Symmetric-key algorithm Block cipher Stream cipher Public-key cryptography Cryptographic hash function Message authentication code Random numbers Steganography Portal

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