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Cryptologia, Volume 5
Volume 5, Number 1, 1981
- Greg E. Mellen:

Graphic Solution of a Linear Transformation Cipher. 1-19 - David Kahn:

The Public's Secrets. 20-26 - Ronald L. Rivest:

Statistical Analysis of the Hagelin Cryptograph. 27-32 - Alfred Ewing:

Some Special War Work Part II. 33-39 - Greg E. Mellen:

Cryptanalysts' corner. 40-42 - Cipher A. Deavours:

The Black Chamber: a Column Shutting Off the Spigot in 1981. 43-45 - Louis Kruh:

Cipher Equipment. 46-50 - Frank Rubin:

Decrypting a Stream Cipher Based on j-k Flip-Flops. 51-57
- Louis Kruh:

From the Ultra Conference: a Book Review. 58
- Elliot Fischer:

A Theoretical Measure of Cryptographic Performance. 59-62
Volume 5, Number 2, 1981
- David Kahn:

German Spy Cryptograms. 65-66 - Robert E. Hartwig, Jack Levine:

Applications of the Drazin Inverse to the Hill Cryptographic System. Part III. 67-77 - Stephen A. Kallis:

The Code-0-Graph Cipher Disks. 78-83 - Gerald Sturges:

The House Report on Public Cryptography. 84-93 - John P. Costas:

The Hand-held Calculator as a Cryptographic Machine. 94-117 - Lee Lembart:

The Public Cryptography Study Group. 118-122 - Greg E. Mellen:

Cryptanalysts' corner. 123
- Louis Kruh:

A Code Problem: a Book Review. 124-125
Volume 5, Number 3, 1981
- George I. Davida:

The Case against restraints on Non-Governmental Research in Cryptography. 143-148 - Philip M. Arnold:

Palatino and Biblianber on Ciphers. 149-154
- Louis Kruh:

Reward for Reading and Deciphering: a Book Review. 155-157
- Elliot Fischer:

Measuring Cryptographic Performance with Production Processes. 158-162 - R. Creighton Buck:

Sherlock Holmes in BABYLON. 163-173 - Louis Kruh:

Cipher Machine Exhibit at Smithsonian Institution. 174 - Oskar Stuerzinger:

The A-22 Cryptograph. 175-183 - Brian J. Winkel:

There and There. 184-190
Volume 5, Number 4, 1981
- Louis Kruh:

The Genesis of the Jefferson/Bazeries Cipher Device. 193-208
- Louis Kruh:

A User's Guide in Voice and Data Communications Protection: Book Review. 208-212
- Robert E. Hartwig, Jack Levine:

Applications of the Drazin Inverse to the Hill Cryptographic System. Part IV. 213-228 - William Groth:

Secret Writing Exhibit. 229-230 - Carl Hammer:

Higher-Order Homophonic Ciphers. 231-242
- Jack Keil Wolf:

Number Theory in Digital Signal Processing: a Book Review. 243-246
- Cipher A. Deavours:

Interactive Solution of Columnar Transposition Ciphers. 247-251

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