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Merged
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Jan 19, 2024
Merged

Do not require explicit passing of context #7

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9 changes: 4 additions & 5 deletions examples/simple_ckks_bootstrapping.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -12,18 +12,17 @@ function simple_ckks_bootstrapping(context)
init_bootstrapping!(context, private_key)

x = [0.25, 0.5, 0.75, 1.0, 2.0, 3.0, 4.0, 5.0]
encoded_length = length(x)

pv = PlainVector(context, x)
pv = PlainVector(x, context)
println("Input: ", pv)

sv = encrypt(context, public_key, pv)
sv = encrypt(pv, public_key)

# Perform the bootstrapping operation. The goal is to increase the number of levels
# remaining for HE computation.
sv_after = bootstrap!(context, sv)
sv_after = bootstrap!(sv)

result = decrypt(context, private_key, sv)
result = decrypt(sv, private_key)
println("Output after bootstrapping \n\t", result)
end

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22 changes: 11 additions & 11 deletions examples/simple_real_numbers.jl
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Expand Up @@ -11,14 +11,14 @@ function simple_real_numbers(context)
x1 = [0.25, 0.5, 0.75, 1.0, 2.0, 3.0, 4.0, 5.0]
x2 = [5.0, 4.0, 3.0, 2.0, 1.0, 0.75, 0.5, 0.25]

pv1 = PlainVector(context, x1)
pv2 = PlainVector(context, x2)
pv1 = PlainVector(x1, context)
pv2 = PlainVector(x2, context)

println("Input x1: ", pv1)
println("Input x2: ", pv2)

sv1 = encrypt(context, public_key, pv1)
sv2 = encrypt(context, public_key, pv2)
sv1 = encrypt(pv1, public_key)
sv2 = encrypt(pv2, public_key)

sv_add = sv1 + sv2

Expand All @@ -35,25 +35,25 @@ function simple_real_numbers(context)
println()
println("Results of homomorphic computations: ")

result_sv1 = decrypt(context, private_key, sv1)
result_sv1 = decrypt(sv1, private_key)
println("x1 = ", result_sv1)

result_sv_add = decrypt(context, private_key, sv_add)
result_sv_add = decrypt(sv_add, private_key)
println("x1 + x2 = ", result_sv_add)

result_sv_sub = decrypt(context, private_key, sv_sub)
result_sv_sub = decrypt(sv_sub, private_key)
println("x1 - x2 = ", result_sv_sub)

result_sv_scalar = decrypt(context, private_key, sv_scalar)
result_sv_scalar = decrypt(sv_scalar, private_key)
println("4 * x1 = ", result_sv_scalar)

result_sv_mult = decrypt(context, private_key, sv_mult)
result_sv_mult = decrypt(sv_mult, private_key)
println("x1 * x2 = ", result_sv_mult)

result_sv_shift1 = decrypt(context, private_key, sv_shift1)
result_sv_shift1 = decrypt(sv_shift1, private_key)
println("x1 shifted circularly by -1 = ", result_sv_shift1)

result_sv_shift2 = decrypt(context, private_key, sv_shift2)
result_sv_shift2 = decrypt(sv_shift2, private_key)
println("x1 shifted circularly by 2 = ", result_sv_shift2)
end

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28 changes: 12 additions & 16 deletions src/openfhe.jl
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Expand Up @@ -44,53 +44,49 @@ function init_bootstrapping!(context::SecureContext{<:OpenFHEBackend}, private_k
nothing
end

function PlainVector(context::SecureContext{<:OpenFHEBackend}, data::Vector{<:Real})
function PlainVector(data::Vector{<:Real}, context::SecureContext{<:OpenFHEBackend})
cc = get_crypto_context(context)
plaintext = OpenFHE.MakeCKKSPackedPlaintext(cc, data)
plain_vector = PlainVector(plaintext, context)

plain_vector
end

function encrypt(context::SecureContext{<:OpenFHEBackend}, public_key, data::Vector{<:Real})
function encrypt(data::Vector{<:Real}, public_key, context::SecureContext{<:OpenFHEBackend})
plain_vector = PlainVector(context, data)
secure_vector = encrypt(context, public_key, plain_vector)

secure_vector
end

function encrypt(context::SecureContext{<:OpenFHEBackend}, public_key,
plain_vector::PlainVector)
function encrypt(plain_vector::PlainVector{<:OpenFHEBackend}, public_key)
context = plain_vector.context
cc = get_crypto_context(context)
ciphertext = OpenFHE.Encrypt(cc, public_key.public_key, plain_vector.plaintext)
secure_vector = SecureVector(ciphertext, context)

secure_vector
end

function decrypt!(plain_vector, context::SecureContext{<:OpenFHEBackend}, private_key,
secure_vector)
cc = get_crypto_context(context)
function decrypt!(plain_vector::PlainVector{<:OpenFHEBackend},
secure_vector::SecureVector{<:OpenFHEBackend}, private_key)
cc = get_crypto_context(secure_vector)
OpenFHE.Decrypt(cc, private_key.private_key, secure_vector.ciphertext,
plain_vector.plaintext)

plain_vector
end

function decrypt(context::SecureContext{<:OpenFHEBackend}, private_key, secure_vector)
function decrypt(secure_vector::SecureVector{<:OpenFHEBackend}, private_key)
context = secure_vector.context
plain_vector = PlainVector(OpenFHE.Plaintext(), context)

decrypt!(plain_vector, context, private_key, secure_vector)
decrypt!(plain_vector, secure_vector, private_key)
end


function bootstrap!(context::SecureContext{<:OpenFHEBackend}, secure_vector)
cc = get_crypto_context(context)
OpenFHE.EvalBootstrap(cc, secure_vector.ciphertext)

secure_vector
end
function bootstrap!(context::SecureContext{<:OpenFHEBackend}, secure_vector)
function bootstrap!(secure_vector::SecureVector{<:OpenFHEBackend})
context = secure_vector.context
cc = get_crypto_context(context)
OpenFHE.EvalBootstrap(cc, secure_vector.ciphertext)

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23 changes: 10 additions & 13 deletions src/unencrypted.jl
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Expand Up @@ -10,33 +10,30 @@ init_multiplication!(context::SecureContext{<:Unencrypted}, private_key) = nothi
init_rotation!(context::SecureContext{<:Unencrypted}, private_key, shifts) = nothing
init_bootstrapping!(context::SecureContext{<:Unencrypted}, private_key) = nothing

function PlainVector(context::SecureContext{<:Unencrypted}, data::Vector{<:Real})
plain_vector = PlainVector(data, context)
end
# No constructor for `PlainVector` necessary since we can directly use the inner constructor

function encrypt(context::SecureContext{<:Unencrypted}, public_key, data::Vector{<:Real})
function encrypt(data::Vector{<:Real}, public_key, context::SecureContext{<:Unencrypted})
SecureVector(data, context)
end

function encrypt(context::SecureContext{<:Unencrypted}, public_key,
plain_vector::PlainVector)
SecureVector(plain_vector.plaintext, context)
function encrypt(plain_vector::PlainVector{<:Unencrypted}, public_key)
SecureVector(plain_vector.plaintext, plain_vector.context)
end

function decrypt!(plain_vector, context::SecureContext{<:Unencrypted}, private_key,
secure_vector)
function decrypt!(plain_vector::PlainVector{<:Unencrypted},
secure_vector::SecureVector{<:Unencrypted}, private_key)
plain_vector.plaintext .= secure_vector.ciphertext

plain_vector
end

function decrypt(context::SecureContext{<:Unencrypted}, private_key, secure_vector)
plain_vector = PlainVector(similar(secure_vector.ciphertext), context)
function decrypt(secure_vector::SecureVector{<:Unencrypted}, private_key)
plain_vector = PlainVector(similar(secure_vector.ciphertext), secure_vector.context)

decrypt!(plain_vector, context, private_key, secure_vector)
decrypt!(plain_vector, secure_vector, private_key)
end

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

function add(sv1::SecureVector{<:Unencrypted}, sv2::SecureVector{<:Unencrypted})
SecureVector(sv1.ciphertext .+ sv2.ciphertext, sv1.context)
Expand Down