security strength of cryptosystem

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• Security through obscurity — In cryptography and computer security, security through obscurity (sometimes security by obscurity) is a controversial principle in security engineering, which attempts to use secrecy (of design, implementation, etc.) to provide security. A… …   Wikipedia

• Cryptography — Secret code redirects here. For the Aya Kamiki album, see Secret Code. Symmetric key cryptography, where the same key is used both for encryption and decryption …   Wikipedia

• Cryptanalysis — Close up of the rotors in a Fialka cipher machine Cryptanalysis (from the Greek kryptós, hidden , and analýein, to loosen or to untie ) is the study of methods for obtaining the meaning of encrypted information, without access to the secret… …   Wikipedia

• NTRU — is an asymmetric (public/private key) cryptosystem. It has two characteristics that make it interesting as an alternative to RSA and Elliptic Curve Cryptography; speed and quantum computing resistance. There are two NTRU based algorithms:… …   Wikipedia

• One-time pad — Excerpt from a one time pad In cryptography, the one time pad (OTP) is a type of encryption, which has been proven to be impossible to crack if used correctly. Each bit or character from the plaintext is encrypted by a modular addition with a bit …   Wikipedia

• Strong cryptography — or cryptographically strong are general terms applied cryptographic systems or components that are considered highly resistant to cryptanalysis. Demonstrating the resistance of any cryptographic scheme to attack is a complex matter, requiring… …   Wikipedia

• Cryptographically strong — This term cryptographically strong is often used to describe an encryption algorithm, and implies, in comparison to some other algorithm (which is thus cryptographically weak), greater resistance to attack. But it can also be used to describe… …   Wikipedia

• SHA hash functions — The SHA hash functions are a set of cryptographic hash functions designed by the National Security Agency (NSA) and published by the NIST as a U.S. Federal Information Processing Standard. SHA stands for Secure Hash Algorithm. The five algorithms …   Wikipedia

• Cryptovirology — is a field that studies how to use cryptography to design powerful malicious software. The field was born with the observation that public key cryptography can be used to break the symmetry between what an antivirus analyst sees regarding a virus …   Wikipedia

• Export of cryptography in the United States — The export of cryptography in the United States is the transfer from the United States to another country of devices and technology related to cryptography. Since World War II, many governments, including the U.S. and its NATO allies, have… …   Wikipedia

• Export of cryptography — The export of cryptography is the transfer from one country to another of devices and technology related to cryptography.Since World War II, Western governments, including the U.S. and its NATO allies, have regulated the export of cryptography… …   Wikipedia