Travis CI (#14)
* add Travis config for x86_64 and ARM64 * Add Travis badge * add stew test dependency * comment out unused 64-bit word extended precision arithmetic for ARM CI
This commit is contained in:
Mamy Ratsimbazafy
GitHub
parent
5f91751328
commit
acbb0f57f7
|
|
@ -0,0 +1,96 @@
|
|||
# Travis config for Constantine
|
||||
language: c
|
||||
|
||||
cache:
|
||||
directories:
|
||||
- nim-devel
|
||||
- nim-stable
|
||||
|
||||
matrix:
|
||||
include:
|
||||
# Constantine only works with Nim devel
|
||||
# Build and test using both gcc and clang
|
||||
# Build and test on both x86-64 and ARM64
|
||||
- os: linux
|
||||
arch: amd64
|
||||
env:
|
||||
- ARCH=amd64
|
||||
- CHANNEL=devel
|
||||
compiler: gcc
|
||||
|
||||
- os: linux
|
||||
arch: arm64
|
||||
env:
|
||||
- ARCH=arm64
|
||||
- CHANNEL=devel
|
||||
compiler: gcc
|
||||
|
||||
- os: linux
|
||||
arch: amd64
|
||||
env:
|
||||
- ARCH=amd64
|
||||
- CHANNEL=devel
|
||||
compiler: clang
|
||||
|
||||
# On OSX we only test against clang (gcc is mapped to clang by default)
|
||||
- os: osx
|
||||
arch: amd64
|
||||
env:
|
||||
- ARCH=amd64
|
||||
- CHANNEL=devel
|
||||
compiler: clang
|
||||
fast_finish: true
|
||||
|
||||
# Submodules are only for benchmarks, don't clone them
|
||||
git:
|
||||
submodules: false
|
||||
|
||||
addons:
|
||||
apt:
|
||||
packages:
|
||||
- libgmp-dev
|
||||
homebrew:
|
||||
packages:
|
||||
- gmp
|
||||
|
||||
before_install:
|
||||
- |
|
||||
if [ "${CHANNEL}" = stable ]; then
|
||||
BRANCH="v$(curl https://nim-lang.org/channels/stable)"
|
||||
else
|
||||
BRANCH="${CHANNEL}"
|
||||
fi
|
||||
|
||||
install:
|
||||
# Detect caching of Nim compiler
|
||||
- |
|
||||
if [ ! -x "nim-${CHANNEL}/bin/nim" ]; then
|
||||
git clone -b "${BRANCH}" https://github.com/nim-lang/nim "nim-${CHANNEL}/"
|
||||
pushd "nim-${CHANNEL}"
|
||||
git clone --depth 1 https://github.com/nim-lang/csources csources/
|
||||
pushd csources
|
||||
sh build.sh
|
||||
popd
|
||||
rm -rf csources
|
||||
bin/nim c koch
|
||||
./koch boot -d:release
|
||||
./koch tools
|
||||
else
|
||||
pushd "nim-${CHANNEL}"
|
||||
git fetch origin "${BRANCH}"
|
||||
if [[ $(git merge FETCH_HEAD | grep -c "Already up to date.") -ne 1 ]]; then
|
||||
bin/nim c koch
|
||||
./koch boot -d:release
|
||||
./koch tools
|
||||
fi
|
||||
fi
|
||||
popd
|
||||
before_script:
|
||||
- export PATH="$PWD/nim-${CHANNEL}/bin${PATH:+:$PATH}"
|
||||
script:
|
||||
- nimble refresh
|
||||
- nimble install gmp stew
|
||||
- nimble test
|
||||
branches:
|
||||
except:
|
||||
- gh-pages
|
||||
|
|
@ -4,6 +4,8 @@
|
|||
[](https://opensource.org/licenses/MIT)
|
||||
|
||||
|
||||
[](https://travis-ci.com/mratsim/constantine)
|
||||
|
||||
This library provides constant-time implementation of elliptic curve cryptography.
|
||||
|
||||
> Warning ⚠️: The library is in development state and cannot be used at the moment
|
||||
|
|
|
|||
|
|
@ -14,117 +14,16 @@
|
|||
|
||||
import ./constant_time
|
||||
|
||||
func asm_x86_64_extMul(hi, lo: var uint64, a, b: uint64) {.inline.}=
|
||||
## Extended precision multiplication uint64 * uint64 --> uint128
|
||||
|
||||
# TODO !!! - Replace by constant-time, portable, non-assembly version
|
||||
# -> use uint128? Compiler might add unwanted branches
|
||||
|
||||
# MUL r/m64
|
||||
# Multiply RAX by r/m64
|
||||
# ############################################################
|
||||
#
|
||||
# Inputs:
|
||||
# - RAX
|
||||
# - r/m
|
||||
# Outputs:
|
||||
# - High word in RDX
|
||||
# - Low word in RAX
|
||||
|
||||
# Don't forget to dereference the var hidden pointer in hi/lo
|
||||
asm """
|
||||
mulq %[operand]
|
||||
: "=d" (`*hi`), "=a" (`*lo`)
|
||||
: "a" (`a`), [operand] "rm" (`b`)
|
||||
:
|
||||
"""
|
||||
|
||||
func unsafeExtPrecMul*(hi, lo: var Ct[uint64], a, b: Ct[uint64]) {.inline.}=
|
||||
## Extended precision multiplication uint64 * uint64 --> uint128
|
||||
##
|
||||
## TODO, at the moment only x86_64 architecture are supported
|
||||
## as we use assembly.
|
||||
## Also we assume that the native integer division
|
||||
## provided by the PU is constant-time
|
||||
|
||||
# Note, using C/Nim default `*` is inefficient
|
||||
# and complicated to make constant-time
|
||||
# See at the bottom.
|
||||
|
||||
type T = uint64
|
||||
|
||||
when not defined(amd64):
|
||||
{.error: "At the moment only x86_64 architecture is supported".}
|
||||
else:
|
||||
asm_x86_64_extMul(T(hi), T(lo), T(a), T(b))
|
||||
# 32-bit words
|
||||
#
|
||||
# ############################################################
|
||||
|
||||
template unsafeExtPrecMul*(a, b: Ct[uint32]): Ct[uint64] =
|
||||
## Extended precision multiplication uint32 * uint32 --> uint64
|
||||
Ct[uint64](uint64(a) * uint64(b))
|
||||
|
||||
func asm_x86_64_div2n1n(q, r: var uint64, n_hi, n_lo, d: uint64) {.inline.}=
|
||||
## Division uint128 by uint64
|
||||
## Warning ⚠️ :
|
||||
## - if n_hi == d, quotient does not fit in an uint64
|
||||
## - if n_hi > d result is undefined
|
||||
|
||||
# TODO !!! - Replace by constant-time, portable, non-assembly version
|
||||
# -> use uint128? Compiler might add unwanted branches
|
||||
|
||||
# DIV r/m64
|
||||
# Divide RDX:RAX (n_hi:n_lo) by r/m64
|
||||
#
|
||||
# Inputs
|
||||
# - numerator high word in RDX,
|
||||
# - numerator low word in RAX,
|
||||
# - divisor as r/m parameter (register or memory at the compiler discretion)
|
||||
# Result
|
||||
# - Quotient in RAX
|
||||
# - Remainder in RDX
|
||||
|
||||
# 1. name the register/memory "divisor"
|
||||
# 2. don't forget to dereference the var hidden pointer
|
||||
# 3. -
|
||||
# 4. no clobbered registers beside explectly used RAX and RDX
|
||||
asm """
|
||||
divq %[divisor]
|
||||
: "=a" (`*q`), "=d" (`*r`)
|
||||
: "d" (`n_hi`), "a" (`n_lo`), [divisor] "rm" (`d`)
|
||||
:
|
||||
"""
|
||||
|
||||
func unsafeDiv2n1n*(q, r: var Ct[uint64], n_hi, n_lo, d: Ct[uint64]) {.inline.}=
|
||||
## Division uint128 by uint64
|
||||
## Warning ⚠️ :
|
||||
## - if n_hi == d, quotient does not fit in an uint64
|
||||
## - if n_hi > d result is undefined
|
||||
##
|
||||
## To avoid issues, n_hi, n_lo, d should be normalized.
|
||||
## i.e. shifted (== multiplied by the same power of 2)
|
||||
## so that the most significant bit in d is set.
|
||||
##
|
||||
## TODO, at the moment only x86_64 architecture are supported
|
||||
## as we use assembly.
|
||||
## Also we assume that the native integer division
|
||||
## provided by the PU is constant-time
|
||||
|
||||
# Note, using C/Nim default `div` is inefficient
|
||||
# and complicated to make constant-time
|
||||
# See at the bottom.
|
||||
#
|
||||
# Furthermore compilers may try to substitute division
|
||||
# with a fast path that may have branches. It might also
|
||||
# be the same at the hardware level.
|
||||
|
||||
# TODO !!! - Replace by constant-time, portable, non-assembly version
|
||||
# -> use uint128? Compiler might add unwanted branches
|
||||
|
||||
type T = uint64
|
||||
|
||||
when not defined(amd64):
|
||||
{.error: "At the moment only x86_64 architecture is supported".}
|
||||
else:
|
||||
asm_x86_64_div2n1n(T(q), T(r), T(n_hi), T(n_lo), T(d))
|
||||
|
||||
func unsafeDiv2n1n*(q, r: var Ct[uint32], n_hi, n_lo, d: Ct[uint32]) {.inline.}=
|
||||
## Division uint64 by uint32
|
||||
## Warning ⚠️ :
|
||||
|
|
@ -141,6 +40,119 @@ func unsafeDiv2n1n*(q, r: var Ct[uint32], n_hi, n_lo, d: Ct[uint32]) {.inline.}=
|
|||
q = (Ct[uint32])(dividend div divisor)
|
||||
r = (Ct[uint32])(dividend mod divisor)
|
||||
|
||||
# ############################################################
|
||||
#
|
||||
# 64-bit words
|
||||
#
|
||||
# ############################################################
|
||||
|
||||
# func asm_x86_64_extMul(hi, lo: var uint64, a, b: uint64) {.inline.}=
|
||||
# ## Extended precision multiplication uint64 * uint64 --> uint128
|
||||
|
||||
# # TODO !!! - Replace by constant-time, portable, non-assembly version
|
||||
# # -> use uint128? Compiler might add unwanted branches
|
||||
|
||||
# # MUL r/m64
|
||||
# # Multiply RAX by r/m64
|
||||
# #
|
||||
# # Inputs:
|
||||
# # - RAX
|
||||
# # - r/m
|
||||
# # Outputs:
|
||||
# # - High word in RDX
|
||||
# # - Low word in RAX
|
||||
|
||||
# # Don't forget to dereference the var hidden pointer in hi/lo
|
||||
# asm """
|
||||
# mulq %[operand]
|
||||
# : "=d" (`*hi`), "=a" (`*lo`)
|
||||
# : "a" (`a`), [operand] "rm" (`b`)
|
||||
# :
|
||||
# """
|
||||
|
||||
# func unsafeExtPrecMul*(hi, lo: var Ct[uint64], a, b: Ct[uint64]) {.inline.}=
|
||||
# ## Extended precision multiplication uint64 * uint64 --> uint128
|
||||
# ##
|
||||
# ## TODO, at the moment only x86_64 architecture are supported
|
||||
# ## as we use assembly.
|
||||
# ## Also we assume that the native integer division
|
||||
# ## provided by the PU is constant-time
|
||||
|
||||
# # Note, using C/Nim default `*` is inefficient
|
||||
# # and complicated to make constant-time
|
||||
# # See at the bottom.
|
||||
|
||||
# type T = uint64
|
||||
|
||||
# when not defined(amd64):
|
||||
# {.error: "At the moment only x86_64 architecture is supported".}
|
||||
# else:
|
||||
# asm_x86_64_extMul(T(hi), T(lo), T(a), T(b))
|
||||
|
||||
# func asm_x86_64_div2n1n(q, r: var uint64, n_hi, n_lo, d: uint64) {.inline.}=
|
||||
# ## Division uint128 by uint64
|
||||
# ## Warning ⚠️ :
|
||||
# ## - if n_hi == d, quotient does not fit in an uint64
|
||||
# ## - if n_hi > d result is undefined
|
||||
|
||||
# # TODO !!! - Replace by constant-time, portable, non-assembly version
|
||||
# # -> use uint128? Compiler might add unwanted branches
|
||||
|
||||
# # DIV r/m64
|
||||
# # Divide RDX:RAX (n_hi:n_lo) by r/m64
|
||||
# #
|
||||
# # Inputs
|
||||
# # - numerator high word in RDX,
|
||||
# # - numerator low word in RAX,
|
||||
# # - divisor as r/m parameter (register or memory at the compiler discretion)
|
||||
# # Result
|
||||
# # - Quotient in RAX
|
||||
# # - Remainder in RDX
|
||||
|
||||
# # 1. name the register/memory "divisor"
|
||||
# # 2. don't forget to dereference the var hidden pointer
|
||||
# # 3. -
|
||||
# # 4. no clobbered registers beside explectly used RAX and RDX
|
||||
# asm """
|
||||
# divq %[divisor]
|
||||
# : "=a" (`*q`), "=d" (`*r`)
|
||||
# : "d" (`n_hi`), "a" (`n_lo`), [divisor] "rm" (`d`)
|
||||
# :
|
||||
# """
|
||||
|
||||
# func unsafeDiv2n1n*(q, r: var Ct[uint64], n_hi, n_lo, d: Ct[uint64]) {.inline.}=
|
||||
# ## Division uint128 by uint64
|
||||
# ## Warning ⚠️ :
|
||||
# ## - if n_hi == d, quotient does not fit in an uint64
|
||||
# ## - if n_hi > d result is undefined
|
||||
# ##
|
||||
# ## To avoid issues, n_hi, n_lo, d should be normalized.
|
||||
# ## i.e. shifted (== multiplied by the same power of 2)
|
||||
# ## so that the most significant bit in d is set.
|
||||
# ##
|
||||
# ## TODO, at the moment only x86_64 architecture are supported
|
||||
# ## as we use assembly.
|
||||
# ## Also we assume that the native integer division
|
||||
# ## provided by the PU is constant-time
|
||||
|
||||
# # Note, using C/Nim default `div` is inefficient
|
||||
# # and complicated to make constant-time
|
||||
# # See at the bottom.
|
||||
# #
|
||||
# # Furthermore compilers may try to substitute division
|
||||
# # with a fast path that may have branches. It might also
|
||||
# # be the same at the hardware level.
|
||||
|
||||
# # TODO !!! - Replace by constant-time, portable, non-assembly version
|
||||
# # -> use uint128? Compiler might add unwanted branches
|
||||
|
||||
# type T = uint64
|
||||
|
||||
# when not defined(amd64):
|
||||
# {.error: "At the moment only x86_64 architecture is supported".}
|
||||
# else:
|
||||
# asm_x86_64_div2n1n(T(q), T(r), T(n_hi), T(n_lo), T(d))
|
||||
|
||||
when isMainModule:
|
||||
block: # Multiplication
|
||||
var hi, lo: uint64
|
||||
|
|
|
|||
Loading…
Reference in New Issue