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RDRAND, the Glossary

RDRAND (for "read random") is an instruction for returning random numbers from an Intel on-chip hardware random number generator which has been seeded by an on-chip entropy source.^[1]

51 relations: /dev/random, Advanced Encryption Standard, AES instruction set, Broadwell (microarchitecture), Bullrun (decryption program), CBC-MAC, Central processing unit, CFLAGS, Clang, Conditional compilation, CPUID, Cryptographically secure pseudorandom number generator, Elliptic Curve Digital Signature Algorithm, Exclusive or, FIPS 140-2, Fortuna (PRNG), FreeBSD, GNU Compiler Collection, Hardware random number generator, IA-32, IEEE Spectrum, Instruction set architecture, Intel, Intrinsic function, Ivy Bridge (microarchitecture), Kaby Lake, Linus Torvalds, Linux kernel, Logical shift, Mersenne Twister, Model-specific register, Monte Carlo method, Multi-core processor, National Institute of Standards and Technology, NIST SP 800-90A, OpenSSL, Pseudorandom number generator, Random number generation, Side-channel attack, Silvermont, Skylake (microarchitecture), Software Guard Extensions, The New York Times, Theodore Ts'o, Thread (computing), VIA PadLock, WolfSSL, X86-64, Xorshift, Yarrow algorithm, ... Expand index (1 more) »
Computer-related introductions in 2012
Machine code
Random number generation

/dev/random

In Unix-like operating systems, and are special files that serve as cryptographically secure pseudorandom number generators (CSPRNGs). RDRAND and /dev/random are random number generation.

See RDRAND and /dev/random

The Advanced Encryption Standard (AES), also known by its original name Rijndael, is a specification for the encryption of electronic data established by the U.S. National Institute of Standards and Technology (NIST) in 2001.

See RDRAND and Advanced Encryption Standard

AES instruction set

An AES (Advanced Encryption Standard) instruction set is a set of instructions that are specifically designed to perform AES encryption and decryption operations efficiently. RDRAND and AES instruction set are x86 architecture and x86 instructions.

See RDRAND and AES instruction set

Broadwell (microarchitecture)

Broadwell (previously Rockwell) is the fifth generation of the Intel Core processor.

See RDRAND and Broadwell (microarchitecture)

Bullrun (decryption program)

Bullrun (stylized BULLRUN) is a clandestine, highly classified program to crack encryption of online communications and data, which is run by the United States National Security Agency (NSA).

See RDRAND and Bullrun (decryption program)

CBC-MAC

In cryptography, a cipher block chaining message authentication code (CBC-MAC) is a technique for constructing a message authentication code (MAC) from a block cipher.

See RDRAND and CBC-MAC

Central processing unit

A central processing unit (CPU), also called a central processor, main processor, or just processor, is the most important processor in a given computer.

See RDRAND and Central processing unit

CFLAGS

CFLAGS and CXXFLAGS are either the name of environment variables or of Makefile variables that can be set to specify additional switches to be passed to a compiler in the process of building computer software.

See RDRAND and CFLAGS

Clang

Clang is a compiler front end for the C, C++, Objective-C, and Objective-C++ programming languages, as well as the OpenMP, OpenCL, RenderScript, CUDA, SYCL, and HIP frameworks.

See RDRAND and Clang

Conditional compilation

In computer programming, conditional compilation is a compilation technique which results in differring executable programs depending on parameters specified.

See RDRAND and Conditional compilation

CPUID

In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from CPU Identification) allowing software to discover details of the processor. RDRAND and CPUID are Machine code, x86 architecture and x86 instructions.

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Cryptographically secure pseudorandom number generator

A cryptographically secure pseudorandom number generator (CSPRNG) or cryptographic pseudorandom number generator (CPRNG) is a pseudorandom number generator (PRNG) with properties that make it suitable for use in cryptography.

See RDRAND and Cryptographically secure pseudorandom number generator

Elliptic Curve Digital Signature Algorithm

In cryptography, the Elliptic Curve Digital Signature Algorithm (ECDSA) offers a variant of the Digital Signature Algorithm (DSA) which uses elliptic-curve cryptography.

See RDRAND and Elliptic Curve Digital Signature Algorithm

Exclusive or

Exclusive or, exclusive disjunction, exclusive alternation, logical non-equivalence, or logical inequality is a logical operator whose negation is the logical biconditional.

See RDRAND and Exclusive or

FIPS 140-2

The Federal Information Processing Standard Publication 140-2, (FIPS PUB 140-2), is a U.S. government computer security standard used to approve cryptographic modules.

See RDRAND and FIPS 140-2

Fortuna (PRNG)

Fortuna is a cryptographically secure pseudorandom number generator (CS-PRNG) devised by Bruce Schneier and Niels Ferguson and published in 2003.

See RDRAND and Fortuna (PRNG)

FreeBSD

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD).

See RDRAND and FreeBSD

GNU Compiler Collection

The GNU Compiler Collection (GCC) is a collection of compilers from the GNU Project that support various programming languages, hardware architectures and operating systems.

See RDRAND and GNU Compiler Collection

Hardware random number generator

In computing, a hardware random number generator (HRNG), true random number generator (TRNG), non-deterministic random bit generator (NRBG), or physical random number generator is a device that generates random numbers from a physical process capable of producing entropy (in other words, the device always has access to a physical entropy source), unlike the pseudorandom number generator (PRNG, a.k.a. RDRAND and hardware random number generator are random number generation.

See RDRAND and Hardware random number generator

IA-32

IA-32 (short for "Intel Architecture, 32-bit", commonly called i386) is the 32-bit version of the x86 instruction set architecture, designed by Intel and first implemented in the 80386 microprocessor in 1985. RDRAND and iA-32 are x86 architecture.

See RDRAND and IA-32

IEEE Spectrum

IEEE Spectrum is a magazine edited by the Institute of Electrical and Electronics Engineers.

See RDRAND and IEEE Spectrum

Instruction set architecture

In computer science, an instruction set architecture (ISA) is an abstract model that generally defines how software controls the CPU in a computer or a family of computers.

See RDRAND and Instruction set architecture

Intel

Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and incorporated in Delaware.

See RDRAND and Intel

Intrinsic function

In computer software, in compiler theory, an intrinsic function, also called built-in function or builtin function, is a function (subroutine) available for use in a given programming language whose implementation is handled specially by the compiler.

See RDRAND and Intrinsic function

Ivy Bridge (microarchitecture)

Ivy Bridge is the codename for Intel's 22 nm microarchitecture used in the third generation of the Intel Core processors (Core i7, i5, i3). RDRAND and Ivy Bridge (microarchitecture) are computer-related introductions in 2012.

See RDRAND and Ivy Bridge (microarchitecture)

Kaby Lake

Kaby Lake is Intel's codename for its seventh generation Core microprocessor family announced on August 30, 2016.

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Linus Torvalds

Linus Benedict Torvalds (born 28 December 1969) is a Finnish-American software engineer who is the creator and lead developer of the Linux kernel.

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Linux kernel

The Linux kernel is a free and open source, UNIX-like kernel that is used in many computer systems worldwide.

See RDRAND and Linux kernel

Logical shift

In computer science, a logical shift is a bitwise operation that shifts all the bits of its operand.

See RDRAND and Logical shift

Mersenne Twister

The Mersenne Twister is a general-purpose pseudorandom number generator (PRNG) developed in 1997 by and.

See RDRAND and Mersenne Twister

Model-specific register

A model-specific register (MSR) is any of various control registers in the x86 system architecture used for debugging, program execution tracing, computer performance monitoring, and toggling certain CPU features. RDRAND and model-specific register are x86 architecture and x86 instructions.

See RDRAND and Model-specific register

Monte Carlo method

Monte Carlo methods, or Monte Carlo experiments, are a broad class of computational algorithms that rely on repeated random sampling to obtain numerical results.

See RDRAND and Monte Carlo method

Multi-core processor

A multi-core processor is a microprocessor on a single integrated circuit with two or more separate processing units, called cores (for example, dual-core or quad-core), each of which reads and executes program instructions.

See RDRAND and Multi-core processor

National Institute of Standards and Technology

The National Institute of Standards and Technology (NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness.

See RDRAND and National Institute of Standards and Technology

NIST SP 800-90A

NIST SP 800-90A ("SP" stands for "special publication") is a publication by the National Institute of Standards and Technology with the title Recommendation for Random Number Generation Using Deterministic Random Bit Generators.

See RDRAND and NIST SP 800-90A

OpenSSL

OpenSSL is a software library for applications that provide secure communications over computer networks against eavesdropping, and identify the party at the other end.

See RDRAND and OpenSSL

Pseudorandom number generator

A pseudorandom number generator (PRNG), also known as a deterministic random bit generator (DRBG), is an algorithm for generating a sequence of numbers whose properties approximate the properties of sequences of random numbers.

See RDRAND and Pseudorandom number generator

Random number generation

Random number generation is a process by which, often by means of a random number generator (RNG), a sequence of numbers or symbols that cannot be reasonably predicted better than by random chance is generated.

See RDRAND and Random number generation

Side-channel attack

In computer security, a side-channel attack is any attack based on extra information that can be gathered because of the fundamental way a computer protocol or algorithm is implemented, rather than flaws in the design of the protocol or algorithm itself (e.g. flaws found in a cryptanalysis of a cryptographic algorithm) or minor, but potentially devastating, mistakes or oversights in the implementation.

See RDRAND and Side-channel attack

References

[1] https://en.wikipedia.org/wiki/RDRAND

Also known as ARCH RANDOM, Bull Mountain (instruction), Intel Secure Key, RDSEED.

, Zen (microarchitecture).

RDRAND, the Glossary

Table of Contents

See also

Machine code

Random number generation

References