Skip to content

Support scalar operations for addition and subtraction #11

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jan 20, 2024
Merged

Support scalar operations for addition and subtraction #11

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions src/arithmetic.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,11 +2,15 @@
Base.:+(sv1::SecureVector, sv2::SecureVector) = add(sv1, sv2)
Base.:+(sv::SecureVector, pv::PlainVector) = add(sv, pv)
Base.:+(pv::PlainVector, sv::SecureVector) = add(sv, pv)
Base.:+(sv::SecureVector, scalar::Real) = add(sv, scalar)
Base.:+(scalar::Real, sv::SecureVector) = add(sv, scalar)

# Subtract
Base.:-(sv1::SecureVector, sv2::SecureVector) = subtract(sv1, sv2)
Base.:-(sv::SecureVector, pv::PlainVector) = subtract(sv, pv)
Base.:-(pv::PlainVector, sv::SecureVector) = subtract(pv, sv)
Base.:-(sv::SecureVector, scalar::Real) = subtract(sv, scalar)
Base.:-(scalar::Real, sv::SecureVector) = subtract(scalar, sv)

# Negate
Base.:-(sv::SecureVector) = negate(sv)
Expand Down
29 changes: 29 additions & 0 deletions src/openfhe.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,11 @@ function bootstrap!(secure_vector::SecureVector{<:OpenFHEBackend})
secure_vector
end


############################################################################################
# Arithmetic operations
############################################################################################

function add(sv1::SecureVector{<:OpenFHEBackend}, sv2::SecureVector{<:OpenFHEBackend})
cc = get_crypto_context(sv1)
ciphertext = OpenFHE.EvalAdd(cc, sv1.ciphertext, sv2.ciphertext)
Expand All @@ -109,6 +114,14 @@ function add(sv::SecureVector{<:OpenFHEBackend}, pv::PlainVector{<:OpenFHEBacken
secure_vector
end

function add(sv::SecureVector{<:OpenFHEBackend}, scalar::Real)
cc = get_crypto_context(sv)
ciphertext = OpenFHE.EvalAdd(cc, sv.ciphertext, scalar)
secure_vector = SecureVector(ciphertext, sv.context)

secure_vector
end

function subtract(sv1::SecureVector{<:OpenFHEBackend}, sv2::SecureVector{<:OpenFHEBackend})
cc = get_crypto_context(sv1)
ciphertext = OpenFHE.EvalSub(cc, sv1.ciphertext, sv2.ciphertext)
Expand All @@ -133,6 +146,22 @@ function subtract(pv::PlainVector{<:OpenFHEBackend}, sv::SecureVector{<:OpenFHEB
secure_vector
end

function subtract(sv::SecureVector{<:OpenFHEBackend}, scalar::Real)
cc = get_crypto_context(sv)
ciphertext = OpenFHE.EvalSub(cc, sv.ciphertext, scalar)
secure_vector = SecureVector(ciphertext, sv.context)

secure_vector
end

function subtract(scalar::Real, sv::SecureVector{<:OpenFHEBackend})
cc = get_crypto_context(sv)
ciphertext = OpenFHE.EvalSub(cc, scalar, sv.ciphertext)
secure_vector = SecureVector(ciphertext, sv.context)

secure_vector
end

function negate(sv::SecureVector{<:OpenFHEBackend})
cc = get_crypto_context(sv)
ciphertext = OpenFHE.EvalNegate(cc, sv.ciphertext)
Expand Down
17 changes: 17 additions & 0 deletions src/unencrypted.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,11 @@ end

bootstrap!(secure_vector::SecureVector{<:Unencrypted}) = secure_vector


############################################################################################
# Arithmetic operations
############################################################################################

function add(sv1::SecureVector{<:Unencrypted}, sv2::SecureVector{<:Unencrypted})
SecureVector(sv1.ciphertext .+ sv2.ciphertext, sv1.context)
end
Expand All @@ -43,6 +48,10 @@ function add(sv::SecureVector{<:Unencrypted}, pv::PlainVector{<:Unencrypted})
SecureVector(sv.ciphertext .+ pv.plaintext, sv.context)
end

function add(sv::SecureVector{<:Unencrypted}, scalar::Real)
SecureVector(sv.ciphertext .+ scalar, sv.context)
end

function subtract(sv1::SecureVector{<:Unencrypted}, sv2::SecureVector{<:Unencrypted})
SecureVector(sv1.ciphertext .- sv2.ciphertext, sv1.context)
end
Expand All @@ -55,6 +64,14 @@ function subtract(pv::PlainVector{<:Unencrypted}, sv::SecureVector{<:Unencrypted
SecureVector(pv.plaintext .- sv.ciphertext, sv.context)
end

function subtract(sv::SecureVector{<:Unencrypted}, scalar::Real)
SecureVector(sv.ciphertext .- scalar, sv.context)
end

function subtract(scalar::Real, sv::SecureVector{<:Unencrypted})
SecureVector(scalar .- sv.ciphertext, sv.context)
end

function negate(sv::SecureVector{<:Unencrypted})
SecureVector(-sv.ciphertext, sv.context)
end
Expand Down
4 changes: 4 additions & 0 deletions test/test_unit.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -64,12 +64,16 @@ for backend in ((; name = "OpenFHE", BackendT = OpenFHEBackend, context = contex
@test sv1 + sv2 isa SecureVector
@test sv1 + pv1 isa SecureVector
@test pv1 + sv1 isa SecureVector
@test sv1 + 3 isa SecureVector
@test 4 + sv1 isa SecureVector
end

@testset verbose=true showtiming=true "subtract" begin
@test sv1 - sv2 isa SecureVector
@test sv1 - pv1 isa SecureVector
@test pv1 - sv1 isa SecureVector
@test sv1 - 3 isa SecureVector
@test 4 - sv1 isa SecureVector
end

@testset verbose=true showtiming=true "multiply" begin
Expand Down