Agencies like the NSA are currently able to eavesdrop on anyone with few restrictions only - though other messages are spread by the NSA.
Theoretically cryptography can make that difficult. Hence those agencies speak up for actions like introducing trapdoors to make it possible to get access to everybody's data.
See the U.S. discussion about the Clipper Chip some years ago:
While encryption offers us privacy for the transmission of data, we do not only wish to have it but also need it if we want to transport data which shall not be seen by anyone else but the recipient of our message. Given this, the governments and governmental institutions/organizations fear to lose control. Strict laws are the consequence. The often repeated rumor that the Internet was a sphere of illegality has been proven wrong. Some parts are controlled by law very clearly. One of them is cryptography. Prohibition of cryptography or at least its restriction are considered an appropriate tool against criminality. Or one should say: had been considered that. In the meantime also governmental institutions have to admit that those restrictions most of all work against the population instead against illegal actors. Therefore laws have been changed in many states during the last five years. Even the USA, the Master of cryptography-restriction, liberated its laws in December 1999 to be more open-minded now.
for an insight into the discussion having gone on for years see:
the final text of the new U.S. Encryption Regulations you will find under:
an explanation of the regulations can be found under:
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cryptography:
It is the study of encryption, the art/science to create and use codes and/or ciphers with the purpose of enciphering as well as deciphering.
After a relatively vivid but slow development of cryptography for nearly 4.000 years the inventions of the telegraph, radio and computer had a high impact on the velocity of further inventions concerning encryption.
Most of the time economic, political or military reasons lie behind the necessity of encryption. As visible from the timetable cryptography it is also done for private and individual interests. An extraordinary example for this is the Braille Code, developed as a possibility for blind people to read and write.
A lot of very interesting and intelligent websites about cryptography can be found in the Internet.Some websites offering links to various cryptography-websites are:
Further there exists a wide range of web-magazines/newsletters/mailing lists on cryptography, e.g.:
Crypto-Gram Newsletter:
Journal of Computer Security:
Cypherpunks:
Stegano-L:
ZD Internet Magazine:
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1971 IBM's work on the Lucifer cipher and the work of the NSA lead to the U.S. Data Encryption Standard (=
1976
1977/78 the
1984 Congress passes Comprehensive Crime Control Act
- The Hacker Quarterly is founded
1986 Computer Fraud and Abuse Act is passed in the USA
- Electronic Communications Privacy Act
1987 Chicago prosecutors found Computer Fraud and Abuse Task Force
1988 U.S. Secret Service covertly videotapes a hacker convention
1989 NuPrometheus League distributes Apple Computer software
1990 -
- Charles H. Bennett and Gilles Brassard publish their work on Quantum Cryptography
- Martin Luther King Day Crash strikes AT&T long-distance network nationwide
1991
- one of the first conferences for Computers, Freedom and Privacy takes place in San Francisco
- AT&T phone crash; New York City and various airports get affected
1993 the U.S. government announces to introduce the
1994
- the
1990s work on quantum computer and quantum cryptography
- work on biometrics for authentication (finger prints, the iris, smells, etc.)
1996 France liberates its cryptography law: one now can use cryptography if registered
- OECD issues Cryptography Policy Guidelines; a paper calling for encryption exports-standards and unrestricted access to encryption products
1997 April European Commission issues Electronic Commerce Initiative, in favor of strong encryption
1997 June PGP 5.0 Freeware widely available for non-commercial use
1997 June 56-bit DES code cracked by a network of 14,000 computers
1997 August U.S. judge assesses encryption export regulations as violation of the First Amendment
1998 February foundation of Americans for Computer Privacy, a broad coalition in opposition to the U.S. cryptography policy
1998 March
1998 April NSA issues a report about the risks of key recovery systems
1998 July
1998 October Finnish government agrees to unrestricted export of strong encryption
1999 January RSA Data Security, establishes worldwide distribution of encryption product outside the USA
- National Institute of Standards and Technologies announces that 56-bit
- 56-bit DES code is cracked in 22 hours and 15 minutes
1999 May 27 United Kingdom speaks out against key recovery
1999 Sept: the USA announce to stop the restriction of cryptography-exports
2000 as the German government wants to elaborate a cryptography-law, different organizations start a campaign against that law
- computer hackers do no longer only visit websites and change little details there but cause breakdowns of entire systems, producing big economic losses
for further information about the history of cryptography see:
for information about hacker's history see:
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Blowfish is a symmetric key block cipher that can vary its length.
The idea behind is a simple design to make the system faster than others.
IDEA is another symmetric-key system. It is a block cipher, operating on 64-bit plaintext blocks, having a key-length of 128 bits.
Leonard M. Adleman was one of three persons in a team to invent the
A mark (trademark or service mark) is "... a sign, or a combination of signs, capable of distinguishing the goods or services of one undertaking from those of other undertakings. The sign may particularly consist of one or more distinctive words, letters, numbers, drawings or pictures, emblems, colors or combinations of colors, or may be three-dimensional..." (