Category: Cryptographically secure pseudorandom number generators

* Cryptographically secure pseudorandom number generator — a class of functions designed specifically to be unsolvable by root-finding algorithms.

Category: Cryptographically secure pseudorandom number generators

# REDIRECT Cryptographically secure pseudorandom number generator

Cryptographically secure pseudorandom number generator •

Category: Cryptographically secure pseudorandom number generators

* Cryptographically secure pseudo-random number generator

* Cryptographically secure pseudorandom number generator

Category: Cryptographically secure pseudorandom number generators

How to Generate Cryptographically Strong Sequences of Pseudo-Random Bits.

A Cryptographically Generated Address ( CGA ) is an Internet Protocol Version 6 ( IPv6 ) address that has a host identifier computed from a cryptographic one-way hash function.

A Cryptographically Generated Address is formed by replacing the least-significant 64 bits of the 128-bit IPv6 address with the cryptographic hash of the public key of the address owner.

SEND protocol uses Cryptographically Generated Addresses.

Cryptographically strong would seem to mean that the described method has some kind of maturity, perhaps even approved for use against different kinds of systematic attacks in theory and / or practice.

Blowfish was one of the first secure block ciphers not subject to any patents and therefore freely available for anyone to use.

Stream ciphers are often used for their speed and simplicity of implementation in hardware, and in applications where plaintext comes in quantities of unknowable length — for example, a secure wireless connection.

For performance reasons, designers of stream ciphers try to keep that number of rounds as small as possible, but because determining the minimal secure number of rounds for stream ciphers is not a trivial task, and considering other issues such as entropy loss, unique to each cipher construction, related-IVs and other IV-related attacks are a known security issue for stream ciphers, which makes IV loading in stream ciphers a serious concern and a subject of ongoing research.

Modern ciphers are more secure than classical ciphers and are designed to withstand a wide range of attacks.

A few thousand PCs working for a few years could solve a problem requiring 2 < sup > 64 </ sup > calculations, but no amount of traditional computing power will solve a problem requiring 2 < sup > 128 </ sup > operations ( which is about what would be required to brute-force the encryption keys in 128-bit SSL commonly used in web browsers, assuming the underlying ciphers remain secure ).

Somewhat more secure were schemes involving multiple alphabets, polyalphabetic ciphers.

Depending on the size of the rotor, this may or may not be more secure than hand ciphers.

Although certainly not as complex or secure as modern computer operated stream ciphers or block ciphers, in practice messages protected by it resisted all attempts at cryptanalysis by at least NSA from its discovery in 1953 until Häyhänen's defection in 1957.

The German Navy's Enigma ciphers were considerably more secure than those of the German Army or Air Force, which had been well penetrated by 1940.

It details the basics of symmetric key, and asymmetric key ciphers, MACs, SSL, secure mail and IPsec.

The implementation uses secure hashes rather than ciphers, as required to avoid legal restrictions that were in place when the generator was originally designed.

Codes were long believed to be more secure than ciphers, since ( if the compiler of the codebook did a good job ) there is no pattern of transformation which can be discovered, whereas ciphers use a consistent transformation, which can potentially be identified and reversed ( except in the case of the one-time pad ).

Stream ciphers, where plaintext bits are combined with a cipher bit stream by an exclusive-or operation ( xor ), can be very secure if used properly.

Instead he gathered a quantity of classified documents concerning secure U. S. communications ciphers and spy satellite development and had his friend Andrew Daulton Lee, a cocaine and heroin dealer since his high school days ( hence his nickname, " The Snowman ") deliver them to Soviet embassy officials in Mexico City, returning with large sums of cash for Boyce ( nicknamed " The Falcon " because of his longtime interest in falconry ) and himself.

This brought Rossignol to the attention of Louis XIII's chief minister, Cardinal Richelieu, who found secure ciphers and codes of immense use to his diplomatic and intelligence corps.

In 1997 he introduced decorrelation theory, a system for designing block ciphers to be provably secure against many cryptanalytic attacks.

These attacks improve on the well-known time-space tradeoff attack on stream ciphers, which with Trivium's 288-bit internal state would take 2 < sup > 144 </ sup > steps, and show that a variant on Trivium which made no change except to increase the key length beyond the 80 bits mandated by eSTREAM Profile 2 would not be secure.

But, here again, comparative benchmarks are lacking, and we do not know, in any case, what measure of profoundity and intensity to expect from healthy, young, secure and relatively inexperienced persons ; ;

Independence Day is the appropriate date as a symbolical reminder of the American article of faith that governments are instituted among men to secure to them certain inalienable rights, the first of which is life, and when any government becomes subversive of that end, it is the right of the people to alter or abolish it.

The advantages of a uniform fiscal year and well synchronized fiscal and tax collection calendars are sufficiently great for Rhode Island municipalities to exert effort to secure them.

It is the concern of the Department of State that the American people are safe and secure -- defense is not a monopoly concern of the Department of Defense.

Made in lengths from 3 to 10 ft., the bars are shaped in cross section to provide a secure fit for the tapered slots molded in back of the letters.

If the inner functions of religion are performed, the individual is a composed, ordered, motivated, and emotionally secure associate ; ;

Unemployed older workers who have no expectation of securing employment in the occupation in which they are skilled should be able to secure counseling and retraining in an occupation with a future.

It may also have been to secure the release of the king from a vow to go on pilgrimage, if sources from after the Norman Conquest of England are to be believed.

Drainage systems are a crucial compromise between human habitability and a secure, sustainable watershed.

A global attempt is needed to secure respect for the fundamental rights of all humans " and to halt the violences that are sources of collective trauma the local, national and global levels.

Peer-to-peer networks are typically less secure than a client / server networks because security is handled by the individual computers, not controlled and supervised on the network as a whole.

Dominant males secure significantly more matings than each subordinate, but subordinate males, as a class, are responsible for more matings than each dominant male.

Technical writers can play a large role in developing content management systems that are secure and easy to use.

Content-control software, content filtering software, secure web gateways, censorware, and web filtering software are terms for software designed and optimized for controlling what content is permitted to a reader, especially when it is used to restrict material delivered over the Internet via the Web, e-mail, or other means.

Google services are often blocked by filters, but these may most often be bypassed by using https :// in place of http :// since content filtering software is not able to interpret content under secure connections ( in this case SSL ).

Where formal correctness proofs are not possible, rigorous use of code review and unit testing represent a best-effort approach to make modules secure.

Such ultra-strong secure operating systems are based on operating system kernel technology that can guarantee that certain security policies are absolutely enforced in an operating environment.

This forms the foundation for a secure operating system which, if certain critical parts are designed and implemented correctly, can ensure the absolute impossibility of penetration by hostile elements.

Coils are often coated with varnish or wrapped with insulating tape to provide additional insulation and secure them in place.

The officially stated goals of the foreign policy of the United States, as mentioned in the Foreign Policy Agenda of the U. S. Department of State, are " to create a more secure, democratic, and prosperous world for the benefit of the American people and the international community.

The algorithm is believed to be practically secure in the form of Triple DES, although there are theoretical attacks.

Doors are also used to secure passages into a building from the exterior for reasons of safety and climate control.

For most of the world, door swings, or handing, are determined while standing on the outside or less secure side of the door while facing the door ( i. e., standing on the side you use the key on, going from outside to inside, or from public to private ).