Python getModulus Exemples

Exemple #1

Fichier : testvectors.py Projet : JasperMertens/DDP

    A = helpers.getRandomInt(514)
    B = helpers.getRandomInt(514)
    C = HW.MultiPrecisionAdd(A, B, "subtract")

    print "A                = ", hex(A)  # 514-bits
    print "B                = ", hex(B)  # 514-bits
    print "A - B            = ", hex(C)  # 515-bits

#####################################################

if operation == 3:
    print "Test Vector for Montgomery Multiplication\n"

    A = helpers.getRandomInt(512)
    B = helpers.getRandomInt(512)
    M = helpers.getModulus(512)
    C = HW.MontMul_512(A, B, M)
    D = (A * B * helpers.Modinv(2**512, M)) % M
    e = C - D

    print "A                = ", hex(A)  # 512-bits
    print "B                = ", hex(B)  # 512-bits
    print "M                = ", hex(M)  # 512-bits
    print "(A*B*R^-1) mod M = ", hex(C)  # 512-bits
    print "(A*B*R^-1) mod M = ", hex(D)  # 512-bits
    print "error            = ", hex(e)

#####################################################

if operation == 4:

Exemple #2

Fichier : special_case_mul.py Projet : WimKunnen/Project-DDP

import helpers
import HW
import SW

import sys

M = helpers.getModulus(1024)
# A = helpers.getRandomInt(1024) % M
# B = helpers.getRandomInt(1024) % M
A = M - 1
B = M - 1

D = HW.MontMul_2bW(A, B, M)

print "A                = ", hex(A)  # 1024-bits
print "B                = ", hex(B)  # 1024-bits
print "M                = ", hex(M)  # 1024-bits
print "(A*B*R^-1) mod M = ", hex(D)  # 1024-bits

Exemple #3

Fichier : testvectors.py Projet : joaosoares/ddp-final-project

    A = helpers.getRandomInt(514)
    B = helpers.getRandomInt(514)
    C = HW.MultiPrecisionAdd(A, B, "subtract")

    print "A                = ", hex(A)  # 514-bits
    print "B                = ", hex(B)  # 514-bits
    print "A - B            = ", hex(C)  # 515-bits

#####################################################

if operation == 3:
    print "Test Vector for Montgomery Multiplication\n"

    A = helpers.getRandomInt(512)
    B = helpers.getRandomInt(512)
    N = helpers.getModulus(512)

    # A = 0xa84ff2f71071936d568335f4e31da1c104c831dc18d7b9199f5d96b9df7315bd0fa8db7a6201cf9ae0842c7f6797a025684296de2089f536c18b7a583c7a9fc5
    # B = 0xb9cf554dbc2f7d876274c0895b10c21a0322d9435a2cd1af43a483a61f7cfb92f984df1a0d9357bc796f8e582427a609d99348f8079de7731fc8a31b3eea6c6e
    # M = 0xef449a8c29c1266af559bdb8d0c42c042b9a46f619b28d7094369f2842ebe42175eb00442338301d1a509aef69043c1dee3bc1f3a06da74e54d094bc7e4ec49b

    C = HW.MontMul_512(A, B, M)
    D = (A * B * helpers.Modinv(2**512, M)) % M
    e = C - D

    print "A                = ", hex(A)  # 512-bits
    print "B                = ", hex(B)  # 512-bits
    print "M                = ", hex(M)  # 512-bits
    print "(A*B*R^-1) mod M = ", hex(C)  # 512-bits
    print "(A*B*R^-1) mod M = ", hex(D)  # 512-bits
    print "error            = ", hex(e)