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| | Cryptography - Wikipedia, the free encyclopedia |
 | | Cryptography is a tool used within computer and network security. | | | Cryptography or cryptology is a field of mathematics and computer science concerned with information security and related issues, particularly encryption. | | | Cryptography is also considered a branch of engineering, but it is considered to be an unusual one as it deals with active, intelligent and malevolent opposition (see cryptographic engineering and security engineering). |
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http://en.wikipedia.org/wiki/Cryptography
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| | Public-key cryptography - Wikipedia, the free encyclopedia |
| | The introduction of elliptic curve cryptography by Neal Koblitz in the mid '80s has yielded a new family of analogous public key algorithms. | | | The security of asymmetric key algorithms is based on estimates of how difficult the underlying mathematical problem is to solve. | | | Furthermore, the binding between a public key and its 'owner' must be correct, lest the algorithm function perfectly and yet be entirely insecure in practice. |
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http://en.wikipedia.org/wiki/Public-key_cryptography
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| | public-key cryptography - Hutchinson encyclopedia article about public-key cryptography |
| | The private key is kept secret, while the public key is distributed widely – to friends, business partners, and even to public key servers – computers which store many users' public keys so that anyone can obtain a copy. | | | Several algorithms in common use apply public-key cryptography, including the RSA algorithm (published in 1977 in Scientific American and named after its inventors, Ronald Rivest, Adi Shamir, and Leonard Adleman) and the Skipjack algorithm used in the Clipper chip. | | | Public-key cryptography can also be used to create and verify a digital signature. |
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http://encyclopedia.farlex.com/Public-key+cryptography
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| | SSH : Support : Cryptography A-Z : Algorithms : Public Key Cryptosystems |
| | In public-key cryptography, the attacker is interested in solving particular instances of a problem (factoring some given number), rather than providing a general solution (an algorithm to factor any possible number efficiently). | | | The security of the cryptosystem is based on the fact that the private key can be computed from the public key only by solving this difficult problem. | | | There is no known sub-exponential algorithm for computing discrete logarithms of points of elliptic curves unlike for discrete logarithms in (the multiplicative group of) a finite field, in hyperelliptic curves (of large genus) or in many other groups. |
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http://www.ssh.com/support/cryptography/algorithms/asymmetric.html
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| | Public Key Cryptography (PKC), RSA, PKI |
| | The first researchers to discover and publish the concepts of PKC were Whitfield Diffie and Martin Hellman from Stanford University, and Ralph Merkle from the University of California at Berkeley. | | | RSA's breakthrough was first publicized by Martin Gardner in August, 1977, in his widely read column Mathematical Games in the magazine Scientific American, and included an offer from RSA to mail a complete report on the PKC method to anyone that requested it. | | | The development of cheap digital hardware has freed it from the design limitations of mechanical computing and brought the cost of high grade cryptographic devices down to where they ca be used in such commercial applications as remote cash dispensers and computer terminals. |
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http://www.livinginternet.com/i/is_crypt_pkc_inv.htm
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| | Public Key Cryptography 101 Using Java |
| | This program uses a Java implementation of the algorithm provided by the original authors of the RSA algorithm for the computation of the keys e and d and for the common divisor n. | | | In addition, this program includes the computation of the encryption and decryption keys using a procedure described by the authors of the RSA algorithm. | | | This method implements the algorithm published by the original authors of the RSA method for computing the public and private keys, e and d, as well as the common divisor, n, as described in Figure 2. |
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http://www.developer.com/java/ent/article.php/3447491
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| | Public Key Cryptography |
| | A key is simply a parameter to the algorithm that allows the encryption and decryption process to occur. | | | Using this technology may require network management personnel with knowledge of public key cryptography and the use of software that implements public key cryptography and digital signature algorithms especially if an outside provider for public key infrastructures is NOT used. | | | Bruce Schneier, Applied Cryptography: Protocols, Algorithms, and Source Code in C, 2nd editon by, John Wiley and Sons, ISBN 0471128457, 1996. |
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http://www.sei.cmu.edu/str/descriptions/publickey_body.html
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| | Public Key Cryptography |
| | SUMMARY: A presentation of the drawbacks inherent in Public Key Cryptosystems and the difficulties and hazards which can be expected to arise in practice especially from the point of view of an operator in a commercial environment. | | | The response is to increase the Key length employed for encryption but this can only be done at the expense of increasing computational load -- the battle therefore becomes a contest between larger and larger computers. | | | It is true that computers of greater capacity are becoming available at lower cost but nevertheless it is not rewarding to squander computer power in this manner and older and slower computers are penalised. |
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http://cryptome.sabotage.org/pkc-gf.htm
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| | Cryptography FAQ (06/10: Public Key Cryptography) |
| | In virtually all public key systems, the encryption and decryption times are very lengthy compared to other block-oriented algorithms such as DES for equivalent data sizes. | | | At the receiver side, the session key is decrypted using the public-key algorithms and the recovered `plaintext' key is used to decrypt the message. | | | The ``key exchange problem'' involves (1) ensuring that keys are exchanged so that the sender and receiver can perform encryption and decryption, and (2) doing so in such a way that ensures an eavesdropper or outside party cannot break the code. |
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http://www.faqs.org/faqs/cryptography-faq/part06
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| | Introduction to Public-Key Cryptography |
| | With most modern cryptography, the ability to keep encrypted information secret is based not on the cryptographic algorithm, which is widely known, but on a number called a key that must be used with the algorithm to produce an encrypted result or to decrypt previously encrypted information. | | | In general, the strength of encryption is related to the difficulty of discovering the key, which in turn depends on both the cipher used and the length of the key. | | | For example, the difficulty of discovering the key for the RSA cipher most commonly used for public-key encryption depends on the difficulty of factoring large numbers, a well-known mathematical problem. |
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http://docs.sun.com/source/816-6154-10
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| | RSA Public-Key Cryptography |
| | However, the computations for keys more than 1024 bits long are very slow, even on today's fastest computers. | | | The package will, in theory at least, handle any key size which is an even multiple of 16, up to the point where the computer runs out of memory. | | | The value of the modulus n is always at least 0x4000..., with enough zeros to fill out all the bits. |
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http://efgh.com/software/rsa.htm
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| | RSA Security - 2.1.1 What is public-key cryptography? |
| | In order to solve the key management problem, Whitfield Diffie and Martin Hellman [DH76] introduced the concept of public-key cryptography in 1976. | | | To sign a message, Alice does a computation involving both her private key and the message itself. | | | To verify the signature, Bob does a computation involving the message, the purported signature, and Alice's public key. |
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http://www.rsasecurity.com/rsalabs/node.asp?id=2165
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| | JEP: A Primer on Public-Key Cryptography |
| | The keys could simply be stored as data on each person's computer. | | | Her key is back on her desk computer. | | | Systems exist today in which the box is so strong that the only way in is through the lock, and the lock is so good that the only way to open it is with a key: An attacker might as well just try every key in the world to find one that works. |
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http://www.press.umich.edu/jep/04-04/polito.html
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| | MPKC 2003: Mathematics of Public-Key Cryptography |
| | In this largely expository talk I will describe several techniques, which owe their origin to the application of number theory to cryptography, that have been successfully applied to classical problems arising in computational number theory. | | | Abstract: "We demonstrate that some finite fields, including GF(2^210), are weak for elliptic-curve cryptography in the sense that any instance of the elliptic-curve discrete-logarithm problem for any elliptic curve over these fields can be solved in significantly less time than it takes Pollard's rho method to solve the hardest instances. | | | MPKC 2003 will cover the latest developments in the mathematics of public-key cryptography. |
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http://mpkc2003.mwisc.org
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| | NP-Completeness, Cryptology, and Knapsacks |
| | It is interesting to note that if anyone ever discovers an efficient method for computing discrete logs, not only will that algorithm not help to break this system, but also, since we have to take some small discrete logs to generate a key, key generation will probably be made easier. | | | Attacks have been developed for more general knapsack systems, and now any system which uses modular multiplication to disguise an easy-to-solve knapsack can be broken efficiently. | | | In general, these systems rely on the intractability of computing some function, or, more precisely, some function's inverse. |
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http://www.derf.net/knapsack
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| | Understanding Public Key Cryptography |
| | The receiving station uses the matching private key to decrypt the data upon reception. | | | A set of public and private keys match from a cryptographic standpoint. | | | Public key cryptography works effectively for encrypting data because the public key can be made freely available to anyone wanting to send encrypted data to a particular station. |
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http://www.wi-fiplanet.com/tutorials/article.php/1572421
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| | Public-Key Cryptography (Linktionary term) |
| | Public-key cryptography provides a way for users to securely exchange information. | | | In 1976, Whitfield Diffie and Martin Hellman developed the concept of asymmetric public-key cryptography. | | | In this scheme, a person uses a program to generate two keys. |
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http://www.linktionary.com/p/public_key.html
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| | Prehistory of Public Key Cryptography |
| | Gus said that he learned of public key crypto the same way many of us did, by reading Martin Gardner's column in Scientific American. | | | At the ACM Computer and Communications Security conference in 1993, Whit Diffie organized a Festcolloquium in honor of Gus Simmons, who was retiring. | | | In other words, non-repudiation -- a classic use for public key cryptography -- was important; if a bomb is used, they (or their heirs, or civilization's heirs...) want to know who ordered it. |
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http://www.cs.columbia.edu/~smb/nsam-160
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| | Public Key Cryptography (Spring 2003) course |
| | Adi Shamir, On the generation of multivariate polynomials which are hard to factor, proceedings of 25th ACM Symposium on Theory of Computing, 796-804, 1993 | | | Arjen K. Lenstra, Integer Factoring, Designs, Codes and Cryptography, vol. | | | W.Diffie and M.E.Hellman, New directions in cryptography, IEEE Transactions on Information Theory, IT-22, 6, pp.644-654, 1976, |
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http://www.wisdom.weizmann.ac.il/~tromer/PKC2003
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| | Conference: Public Key Cryptography |
| | PKC&CNT 2000 is the first in Poland scientific conference on Public-Key Cryptography and Computational Number Theory. | | | A combinatorial algorithm for sharing a secret key | | | The main purpose is to bring to Poland the world's best experts in those fields and to promote creation of a strong research team in Poland. |
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http://www.impan.gov.pl/BC/00PKC.html
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| | Public Key Cryptography Demystified: Campus Technology |
| | Public key technology has an important role to play in helping us protect our information and to be able to rely on the network to handle transactions of increasing value. | | | One of the two keys may be used to encrypt information, which can only be decrypted with the other key. | | | The technology is called Public Key because unlike earlier forms of cryptography, it works with a pair of keys. |
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http://www.campus-technology.com/article.asp?id=7626
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| | Public-key cryptography |
| | What they proposed for doing this was a ``trapdoor'' function for which values could be easily computed but inverse images could not be easily computed without the extra information provided by the hidden key. | | | The idea of public-key cryptography was invented by Diffie and Hellman in 1976 in the paper [ | | | They described a system for encoding and decoding messages where the ``key'' for encoding could be made publicly known without fear that the ``hidden key'' for decoding messages could be discovered. |
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http://www.math.okstate.edu/~wrightd/crypt/crypt-intro/node16.html
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| | Cryptography |
| | Cryptography References (part 10 of the sci.crypt FAQ) | | | Links to cryptographic software utilities, on-line cryptographic services, and companies selling cryptographic software and hardware. | | | Another, more efficient and reliable solution is a public key cryptosystem, such as RSA, which is used in the popular security tool PGP. |
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http://world.std.com/~franl/crypto.html
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| | PKC 2006: Main Page |
| | The Proceedings of PKC'06 will be published by Springer-Verlag in the Lecture Notes in Computer Science (LNCS) series. | | | PKC has attracted papers from world-renowned scientists in the area. | | | The International Conference on Practice and Theory in Public-Key Cryptography (PKC) has been the main IACR annual workshop focusing on all aspects of public-key cryptography. |
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http://pkc06.cs.columbia.edu
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| | www.ipkc.org |
| | but also to guide the current and coming PKC workshops. | | | all activities of the past PKC workshops from 1988 |
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http://www.ipkc.org
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| | Redirecting |
| | We will promptly redirect you to your requested page, or if you prefer, click the link below. | | | Click here to go to: Public-Key Cryptography Standards (PKCS) |
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http://www.rsasecurity.com/rsalabs/pkcs
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