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| | Cryptography - Wikipedia, the free encyclopedia |
 | | Public key algorithms are usually based on hard mathematical problems. | | | Unsolved problems in computer science: One-way functions are functions that are easy to compute but hard to invert. | | | When cryptography relies on hard mathematical problems, as is usually the case in asymmetric cryptography, algorithms for tasks such as factoring become potential tools for cryptanalysis. |
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http://www.lighthousepoint.us/project/wikipedia/index.php/Cryptography
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| | wikien.info: Main_Page |
| | As of 2002, a key length of 1024 bits was generally considered the minimum necessary for the RSA encryption algorithm. | | | One of the asymmetric algorithm types, elliptic curve cryptography, or ECC, appears to be secure with shorter keys than other asymmetric key algorithms. | | | The effectiveness of public key cryptosystems depends on the intractability (computational and theoretical) of certain mathematical problems such as integer factorization. |
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http://www.alanaditescili.net/index.php?title=Key_size
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| | Security |
| | Symmetric key algorithms can be of two types: block (encrypt/decrypt blocks of data) or stream (encrypt/decrypt data at the bit level). | | | Key length is limited to 512 and 1024 bits, and the algorithm can only be used for digital signatures. | | | Secure Hash Algorithm, revised (SHA-1) - a revision of SHA, which was developed by the National Security Agency, this function was designed for use with the DSS algorithm for digital signatures. |
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http://www.ou.edu/edi/security/securitystandards.htm
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| | [No title] |
| | Pulic-key algorithm, also known as asymmetric-key algorithm, is one in which each of peers in communication uses a pair of keys - one secrect key and one public key which is widely published. | | | Secret-key algorithm, also called symmetric-key algorithm, is one in which the same secret key is used by both peers involved in the communication. | | | Basically, the secret-key algorithm is faster, but much more difficult to carry the key distribution than the public-key algorithm. |
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http://www.cs.utk.edu/~tyang/wireless/secure_intro.html
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| | Definition: asymmetric cryptographic algorithm |
| | asymmetric cryptographic algorithm: A cryptographic formula that uses two related keys—a public key and a private key —each of which has the characteristic algorithm that, given the public key, it is computationally infeasible to derive the private key. |
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http://www.atis.org/tg2k/_asymmetric_cryptographic_algorithm.html
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| | ElGamal encryption: Information From Answers.com |
| | The ElGamal algorithm is used in the free GNU Privacy Guard software, recent versions of PGP, and other cryptosystems. | | | The ElGamal algorithm is an asymmetric key encryption algorithm for public key cryptography which is based on Diffie-Hellman key agreement. | | | ElGamal is a simple example of a semantically secure asymmetric key encryption algorithm (under reasonable assumptions). |
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http://www.answers.com/topic/elgamal-encryption
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| | Cipher |
| | The transposition or substitution is controlled by a cryptographic algorithm (or procedure). | | | If one key cannot be deduced from the other, the asymmetric key algorithm has the public/private key property and one of the keys may be made public without loss of confidentiality. | | | By whether the same key is used for both encryption and decryption (Symmetric key algorithms), or if a different key is used for each (Asymmetric key algorithms). |
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http://www.theezine.net/c/cipher-1.html
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| | Practice questions for Security+ (Security plus) exam: Cryptographic algorithms |
| | Assymetric algorithms: Also known as public key algorithms, these algorithms use asymmetric keys for encoding and decoding a message. | | | Symmetric algorithms: As the name suggests, symmetric key algorithms use the same key to encrypt as well as decrypt message. | | | Deffie-hellman Key Exchange: This is one of the early key exchange algorithm. |
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http://www.simulationexams.com/SampleQuestions/comptia/security+-q5.htm
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| | EncrypTix - GLOSSARY |
| | If the output of this algorithm matches a certain part of the digital signature, the signature is valid and the message has not changed. | | | Key - An input (typically a very large number) to an encryption or decryption algorithm. | | | Digital Signature Algorithm (DSA) - An algorithm for producing digital signatures, developed by NIST and the NSA. |
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http://websites.gofuse.com/encryptix/03-technology/glossary.html
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| | [No title] |
| | \par For some \endash but not all -- asymmetric key algorithms (eg, the three mentioned abo ve), there is no known technique to decode one key from the other, and so either may be made public without loss of the confidentiality offered by the algorithm. | | | These are the so-called \lquote public key / private key\rquote algorithms. |
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http://www.linuxpcug.org/crypto/ASYMDIAG.RTF
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| | asymmetric cryptography - The Community's Center for Security |
| | Second, although the other key of the pair is shared by all entities that use the algorithm, that key does not need to be kept secret from other, non-using entities; so the key distribution part of key management can be done more easily. | | | (I) A modern branch of cryptography (popularly known as "public- key cryptography") in which the algorithms employ a pair of keys (a public key and a private key) and use a different component of the pair for different steps of the algorithm. | | | Then each uses their own private key and the other's public key to compute the new key value. |
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http://www.linuxsecurity.com/content/view/116897/141
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| | [No title] |
| | The disadvantage of symmetric-key algorithms is the requirement of a shared secret key, with one copy at each end. | | | The consequent requirement to choose, distribute and store keys without error and without loss is a difficulty. | | | B ò ó B 0 ß O S ó ª ¨ Symmetric-key algorithms are generally much faster to execute electronically than asymmetric key algorithms. |
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http://www.sci.usq.edu.au/courses/CSC8sec/Lecture1Module3.ppt
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| | Sample Chapter from Microsoft® Encyclopedia of Security by Mitch Tulloch |
| | The Digital Signature Algorithm (DSA) is a public key algorithm used for creating digital signatures to verify the identity of individuals in electronic transactions. | | | Since DES is a symmetric key algorithm, both the sender and the receiver require the same key in order for secure communications to be implemented. | | | Although DSA is a public key algorithm, it is used mainly for digitally signing documents and not for encrypting them. |
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http://www.microsoft.com/mspress/books/sampchap/6429.asp
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| | Strong Encryption of Restricted Data |
| | ECDSA is the best asymmetric key algorithm; however, it is not currently in common use. | | | AES is recommended as the best symmetric key algorithm, as it is faster and more cryptographically secure than 3DES. | | | This validation ensures that the module correctly implements all of the approved algorithms and meets the other requirements of FIPS 140-2. |
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http://socrates.berkeley.edu:2002/EncryptRequirements.htm
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| | Cryptographic Appliances - Glossary |
| | Public Key Algorithm - A cryptographic algorithm that is used to establish a secure communication channel over an insecure transmission medium. | | | RSA - Named for its creators, Rivest, Shamir and Adleman, the most common public-key algorithm. | | | Diffie-Hellman - The first public-key algorithm ever invented. |
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http://www.cryptoapps.com/glossary.html
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| | CryptoLib (ActiveX Components) - Developer Fusion, the UK developer community - VB, ASP, C#, .NET, PHP and XML ... |
| | Provides RSA asymmetric key algorithm, with up to 2048 bits key 3 hash algorithms, MD5, SHA, and Tiger. | | | Provides AES and TwoFish symmetric algorithms, with up to 256 bits key. | | | It has the possibility to compress data before it is encrypted, saving storage space and adding an extra level of security. |
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http://www.developerfusion.co.uk/show/3336
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| | SSL |
| | Asymmetric key algorithm is predominantly used for the private exchange of the symmetric key. | | | In fact message is encrypted and decrypted using symmetric key algorithm because it is much faster. | | | SSL's symmetric encryption uses DES algorithm and the key could be between 40 and 128 bits (128-bit encryption is now standard). |
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http://www.shu.ac.uk/schools/cms/teaching/rh1/ebiz/what_is_ssl.htm
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| | Bambooweb: Digital Certificate |
| | Public key cryptography provides a way to evade this problem. | | | Securely exchanging secret keys amongst users becomes impractical to the point of effective impossibility for anything other than quite small networks. | | | Public key infrastructure refers, mostly, to the software that manages certificates in a large-scale setting. |
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http://www.bambooweb.com/articles/d/i/Digital_Certificate.html
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| | CertainKey - Glossary |
| | The RSA asymmetric key algorithm was invented by Rivist, Shamir and Adleman at MIT in 1977. | | | An RSA public-key typically consists of two values e and n while its complement private-key may consist of d and n. | | | Be certain that your key data is never lost. |
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http://www.certainkey.com/resources/glossary.php?RSA
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| | All Net Tools - Forum - A suggestion for Digi Secret |
| | Also are any of the algorithms in digisecret pure or | | | after obtaining C frm its Feistel Network Algorithms | | | Using this idea might give an edge of other similar products. |
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http://www.all-nettools.com/forum/showthread.php?t=414
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| | 4.6.4.2.2 Asymmetric Key Management |
| | Appropriate asymmetric encryption algorithms and identifiers, and encrypted DEK formats are defined in RFC 1423. | | | The first argument is an IK Use Indicator identifying the algorithm and mode in which the DEK is asymmetrically encrypted. | | | When asymmetric key management is employed for a given recipient, the "Key-Info:" field transfers two quantities, separated by a comma. |
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http://www.freesoft.org/CIE/RFC/1421/44.htm
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| | Reed Smith :: Library |
| | In addition, the license exception applies to several other unique export scenarios: | | | This includes source code and technology for internal company use. | | | Weak encryption, or encryption with a symmetric algorithm equal to or weaker than 64 bits, is now readily exportable. |
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http://www.reedsmith.com/library/publicationPrint.cfm?itemid=3516)
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| | PKCS |
| | RSA Data Security Inc was assigned the licensing rights for the patent on the RSA asymmetric key algorithm and acquired the licensing rights to several other key patents as well (eg, the Schnorr patent). | | | In cryptography, PKCS refers to a group of Public Key Cryptography Standards devised and published by RSA laboratories in California. | | | As such, RSA Security, and its research division, RSA Labs, were interested in promoting and facilitating the use of public key techniques. |
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http://www.worldhistory.com/wiki/P/PKCS.htm
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| | [No title] |
| | CERTAIN PRODUCTS WITH ENCRYTION/DECRYPTION FEATURES ARE RELEASED FROM CONTROL PRODUCTS IN WHICH THE ENCRYPTION FEATURES ARE LIMITED TO AUTHENTICATION AND DIGITAL SIGNATURES AUTHENTICATION INCLUDES ALL ASPECTS OF ACCESS CONTROL, SUCH AS PROTECTION OF PASSWORDS AND PINS, WHERE THERE IS NO ENCRYPTION OF FILES OR TEXT 2. | | | LICENSE EXCEPTION ENC MAY BE USED TO EXPORT ENCRYPTION ITEMS TO FOREIGN SUBSIDIARIES OF UNITED STATES CORPORATIONS WITHOUT REVIEW AND A CLASSIFICATION RULING FROM BXA 3. | | | LICENSE EXCEPTION ENC MAY BE USED FOR THE EXPORT OF ENCRYPTION PRODUCTS OF ANY KEY LENGTH TO ANY FOREIGN DESTINATION, EXCEPT EMBARGOED AND TERRORIST-SUPPORTING COUNTRIES 2. |
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http://www.bakernet.com/ecommerce/usencryption.doc
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