package spu.mpc.semi2k.beaver.ttp_server

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TTP Beaver service for semi2k only.

• rpc AdjustMul (AdjustMulRequest, AdjustResponse)

  service.proto:56

  V1 adjust ops

  message AdjustMulRequest

  service.proto:77

  • repeated PrgBufferMeta prg_inputs = 1

    input three prg buffer reconstruct all parties' share get: ra / rb / rc

  • uint32 field_size = 2

    What field size should be used to interpret buffer content

    output adjust_c = ra * rb - rc make ra * rb = (adjust_c + rc)

  • ElType element_type = 3

    element type supported: "GFMP", "RING"

    if element type is "GFMP" then all ring ops will be changed to gfmp

• rpc AdjustMulPriv (AdjustMulPrivRequest, AdjustResponse)

  service.proto:58

  message AdjustMulPrivRequest

  service.proto:93

  • repeated PrgBufferMeta prg_inputs = 1

    input 2 prg buffer first is a or b [one party holds a slice, another b slice] second is c

  • uint32 field_size = 2

    What field size should be used to interpret buffer content

    output adjust_c = a * b - rc make a * b = (adjust_c + rc)

  • ElType element_type = 3

    element type supported: "GFMP", "RING"

    if element type is "GFMP" then all ring ops will be changed to gfmp

• rpc AdjustSquare (AdjustSquareRequest, AdjustResponse)

  service.proto:60

  message AdjustSquareRequest

  service.proto:110

  • repeated PrgBufferMeta prg_inputs = 1

    input two prg buffer reconstruct all parties' share get: ra / rb

  • uint32 field_size = 2

    What field size should be used to interpret buffer content

    output adjust_b = ra * ra - rb make ra * ra = (adjust_b + rb)

• rpc AdjustDot (AdjustDotRequest, AdjustResponse)

  service.proto:62

  message AdjustDotRequest

  service.proto:122

  • repeated PrgBufferMeta prg_inputs = 1

    input three prg buffer reconstruct all parties' share get: ra / rb / rc

  • repeated bool transpose_inputs = 2

    if buffer need reshaped by transpose

  • uint32 field_size = 3

    What field size should be used to interpret buffer content

  • uint64 M = 4

    ra's shape: (M, K), rb's shape: (K, N), rc's shape: (M, N)

  • uint64 N = 5

  • uint64 K = 6

    output adjust_c = matmul(ra, rb) - rc make matmul(ra, rb) = (adjust_c + rc)

• rpc AdjustAnd (AdjustAndRequest, AdjustResponse)

  service.proto:64

  message AdjustAndRequest

  service.proto:140

  • repeated PrgBufferMeta prg_inputs = 1

    input three prg buffer reconstruct all parties' share get: ra / rb / rc

    output adjust_c = (ra & rb) ^ rc make ra & rb = (adjust_c ^ rc)

• rpc AdjustTrunc (AdjustTruncRequest, AdjustResponse)

  service.proto:66

  message AdjustTruncRequest

  service.proto:150

  • repeated PrgBufferMeta prg_inputs = 1

    input two prg buffer reconstruct all parties' share get: ra / rb

  • uint32 field_size = 2

    What field size should be used to interpret buffer content

  • uint32 bits = 3

    how many bits need to truncate.

    output adjust_b = (ra >> bits) - rb makes ra >> bits = (adjust_b + rb)

• rpc AdjustTruncPr (AdjustTruncPrRequest, AdjustResponse)

  service.proto:68

  message AdjustTruncPrRequest

  service.proto:164

  • repeated PrgBufferMeta prg_inputs = 1

    input two prg buffer reconstruct all parties' share get: ra / rb / rc

  • uint32 field_size = 2

    What field size should be used to interpret buffer content

  • uint32 bits = 3

    how many bits need to truncate.

    output adjust1 = ((ra << 1) >> (bits + 1)) - rb adjust2 = msb(ra) - rc make (adjust1 + rb) = (ra mod 2^(ring_size-1)) >> bits (adjust2 + rc) = msb(ra)

• rpc AdjustRandBit (AdjustRandBitRequest, AdjustResponse)

  service.proto:70

  message AdjustRandBitRequest

  service.proto:180

  • repeated PrgBufferMeta prg_inputs = 1

    input one prg buffer reconstruct all parties' share get: ra

  • uint32 field_size = 2

    What field size should be used to interpret buffer content

    output adjust_a = server generated random 0/1 array - rb make (adjust_a + ra) = random 0/1 array

• rpc AdjustEqz (AdjustEqzRequest, AdjustResponse)

  service.proto:72

  message AdjustEqzRequest

  service.proto:192

  • repeated PrgBufferMeta prg_inputs = 1

    input two prg buffer reconstruct all parties' share get: ra / rb

  • uint32 field_size = 2

    What field size should be used to interpret buffer content

    output adjust_b = rb make ra(in a share) = rb(in b share)

• rpc AdjustPerm (AdjustPermRequest, AdjustResponse)

  service.proto:74

  message AdjustPermRequest

  service.proto:204

  • repeated PrgBufferMeta prg_inputs = 1

    input two prg buffer reconstruct all parties' share get: ra / rb

  • uint32 field_size = 2

    What field size should be used to interpret buffer content

  • optional PrgRandPermMeta perm = 3

    Rand permutation

    output adjust_b = (apply inverse permutation perm to ra) - rb make (adjust_b + rb) = apply inverse permutation perm to ra

Used as response type in: BeaverService.AdjustAnd, BeaverService.AdjustDot, BeaverService.AdjustEqz, BeaverService.AdjustMul, BeaverService.AdjustMulPriv, BeaverService.AdjustPerm, BeaverService.AdjustRandBit, BeaverService.AdjustSquare, BeaverService.AdjustTrunc, BeaverService.AdjustTruncPr

(message has no fields)

The type of element in the field. Match the enum in libspu/mpc/common/prg_tensor.h

Used in: AdjustMulPrivRequest, AdjustMulRequest

• UNSPECIFIED = 0

• RING = 1

• GFMP = 2

• OK = 0

• OpAdjustError = 1

• SeedDecryptError = 2

PRG generated buffer metainfo. BeaverService replay PRG to generate same buffer using each party's prg_seed encrypted by server's public key. PrgBufferMeta represent {world_size} arithmetic/boolean shares for one random array.

Used in: AdjustAndRequest, AdjustDotRequest, AdjustEqzRequest, AdjustMulPrivRequest, AdjustMulRequest, AdjustPermRequest, AdjustRandBitRequest, AdjustSquareRequest, AdjustTruncPrRequest, AdjustTruncRequest

• uint64 prg_count = 1

• uint64 buffer_len = 2

  buffer len in bytes

• repeated bytes encrypted_seeds = 3

• bool transpose = 4

Used in: AdjustPermRequest

• uint64 prg_count = 1

• int64 size = 2

  permutation size

• bytes encrypted_seeds = 3

Used in: TTPServerConfig

• string cert_file = 1

  Certificate file in PEM format

• string key_file = 2

  Private key file in PEM format

• string ca_file = 3

  The trusted CA file to verify the peer's certificate

• int32 verify_depth = 4

  Maximum depth of the certificate chain for verification If 0, turn off the verification

• int32 server_port = 1

  Listening port

• string asym_crypto_schema = 2

  Asymmetric crypto schema, support ["SM2"]

• optional SSLConfig ssl = 3

  Configurations related to SSL