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The Rabin cryptosystem is a family of public-key encryption schemes based on a trapdoor function whose security, like that of RSA, is related to the difficulty of integer factorization. [ 1 ] [ 2 ] The Rabin trapdoor function has the advantage that inverting it has been mathematically proven to be as hard as factoring integers, while there is ...
For any k ∈ K, without trapdoor t k, for any PPT algorithm, the probability to correctly invert f k (i.e., given f k (x), find a pre-image x' such that f k (x' ) = f k (x)) is negligible. [3] [4] [5] If each function in the collection above is a one-way permutation, then the collection is also called a trapdoor permutation. [6]
There are also system functions available to users for saving the current workspace e.g., )SAVE and terminating the APL environment, e.g., )OFF - sometimes called hook commands or functions due to the use of a leading right parenthesis or hook. [16] There is some standardization of these quad and hook functions.
A trapdoor is a door set into a floor or ceiling. Trapdoor or Trap Door may also refer to: Trap Door, a science fiction fanzine; The Trap Door, a British animated TV series The Trap Door, a computer game based on the animated series; Trapdoor (software), a piece of computer software used for network administration
A trapdoor or hatch is a sliding or hinged door that is flush with the surface of a floor, ceiling, or roof. [1] It is traditionally small in size. [ 2 ] It was invented to facilitate the hoisting of grain up through mills, however, its list of uses has grown over time. [ 3 ]
Falling-block action military rifles were common in the 19th century. They were replaced for military use by the faster bolt-action rifles, which were typically reloaded from a magazine holding several cartridges. [2] A falling-block breech-loading rifle was patented in Belgium by J. F. Jobard in 1835 using a unique self-contained cartridge. [3]
The escape system unintentionally blasted off from the Mercury spacecraft on the failed Mercury-Redstone 1 mission The escape tower used by Shenzhou. The idea of using a rocket to remove the capsule from a space vehicle was developed by Maxime Faget in 1958. [1]
The Rolling Block was also one of two makers rifles used by the American team to win the International Long Range matches held at Creedmoor Rifle Range on Long Island, New York, in 1874. Team members shot against the Irish team with half the shooters using Rolling Block Creedmoor models, and the other half using Sharps Model 1874 Long Range rifles.