另一个方法就是使用时间和内存的乘积来衡量。还有一个方法就是计算内存总线上内存带宽的消耗,这种类型的函数也叫做bandwidth-hard functions(BHF)。 MHF的种类 根据MHF的评估方式,MHF可以分为两个类型,分别是数据依赖型(dMHF)和数据独立型(iMHF)。 数据依赖型(dMHF)指的是后面计算的数据需要依赖于之前的数据,但是...
还有一个方法就是计算内存总线上内存带宽的消耗,这种类型的函数也叫做bandwidth-hard functions(BHF)。 MHF的种类 根据MHF的评估方式,MHF可以分为两个类型,分别是数据依赖型(dMHF)和数据独立型(iMHF)。 数据依赖型(dMHF)指的是后面计算的数据需要依赖于之前的数据,但是到底需要哪些消息是不确定的。 数据独立型(...
另一个方法就是使用时间和内存的乘积来衡量。还有一个方法就是计算内存总线上内存带宽的消耗,这种类型的函数也叫做bandwidth-hard functions(BHF)。 MHF的种类 根据MHF的评估方式,MHF可以分为两个类型,分别是数据依赖型(dMHF)和数据独立型(iMHF)。 数据依赖型(dMHF)指的是后面计算的数据需要依赖于之前的数据,但是...
另一个方法就是使用时间和内存的乘积来衡量。还有一个方法就是计算内存总线上内存带宽的消耗,这种类型的函数也叫做bandwidth-hard functions(BHF)。 MHF的种类 根据MHF的评估方式,MHF可以分为两个类型,分别是数据依赖型(dMHF)和数据独立型(iMHF)。 数据依赖型(dMHF)指的是后面计算的数据需要依赖于之前的数据,但是...
Memory-hard functions (MHFs) are moderately-hard functions which enforce evaluation costs both in terms of time and memory (often, in form of a trade-off). They are used e.g. for password protection,...doi:10.1007/978-3-030-26951-7_19Binyi Chen...
2.2 Model for memory-hard functions The memory-hard functions that we explore use the following mode of operation. The memory array B[] is filled with the compression function G: B[0] = H(P, S); for j from 1 to t B[j] = G B[φ1(j)], B[φ2(j)], ··· , B[φk(j)...
We develop new theoretical tools for proving lower-bounds on the (amortized) complexity of certain functions in models of parallel computation. We apply the tools to construct a class of functions with high amortized memory complexity in the *parallel* Random Oracle Model (pROM); a variant of ...
Argon2 summarizes the state of the art in the design of memory-hard functions. It is a streamlined and simple design. It aims at the highest memory filling rate and effective use of multiple computing units, while still providing defense against tradeoff attacks. Argon2 is optimized for the ...
Computationally Data-Independent Memory Hard FunctionCumulative Memory ComplexityDynamic Pebbling GameMemory hard functions (MHFs) are an important cryptographic primitive that are used to design egalitarian proofs of work and in the construction of moderately expensive key-derivation functions resistant to bru...
//www.tarsnap.com/scrypt.html) INSTALLATION $ go get github.com/dchest/scrypt PACKAGE import "github.com/dchest/scrypt" Package scrypt implements the scrypt key derivation function as defined in Colin Percival's paper "Stronger Key Derivation via Sequential Memory-Hard Functions". FUNCTIONS func ...