Cryptographic synchronization recovery by measuring randomness of decrypted data
Abstract
The invention relates to synchronization of encrypted data communication systems and a method which looks for any lack of pattern or intelligent information in the received data and triggers a resynchronization signal based thereon. If the encrypter/decrypter pairs are out of cryptographic synchronization, the received (decrypted) data resembles pseudorandom data. A method and system are provided for detecting such pseudorandom binary data by, for example, ones density. If the data is sufficiently random the system is resynchronized.
- Inventors:
-
- Albuquerque, NM
- Issue Date:
- Research Org.:
- AT&T
- OSTI Identifier:
- 867646
- Patent Number(s):
- 4977596
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- DOE Contract Number:
- AC04-76DP00789
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- cryptographic; synchronization; recovery; measuring; randomness; decrypted; data; relates; encrypted; communication; systems; method; looks; lack; pattern; intelligent; information; received; triggers; resynchronization; signal; based; thereon; encrypter; decrypter; pairs; resembles; pseudorandom; provided; detecting; binary; example; ones; density; sufficiently; random; resynchronized; signal based; based thereon; received data; sufficiently random; binary data; communication systems; data communication; encrypted data; /380/370/375/
Citation Formats
Maestas, Joseph H, and Pierson, Lyndon G. Cryptographic synchronization recovery by measuring randomness of decrypted data. United States: N. p., 1990.
Web.
Maestas, Joseph H, & Pierson, Lyndon G. Cryptographic synchronization recovery by measuring randomness of decrypted data. United States.
Maestas, Joseph H, and Pierson, Lyndon G. Mon .
"Cryptographic synchronization recovery by measuring randomness of decrypted data". United States. https://www.osti.gov/servlets/purl/867646.
@article{osti_867646,
title = {Cryptographic synchronization recovery by measuring randomness of decrypted data},
author = {Maestas, Joseph H and Pierson, Lyndon G},
abstractNote = {The invention relates to synchronization of encrypted data communication systems and a method which looks for any lack of pattern or intelligent information in the received data and triggers a resynchronization signal based thereon. If the encrypter/decrypter pairs are out of cryptographic synchronization, the received (decrypted) data resembles pseudorandom data. A method and system are provided for detecting such pseudorandom binary data by, for example, ones density. If the data is sufficiently random the system is resynchronized.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}
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