more examles?

[cyberhorse208]

can u give more examples about how to use all the functions of tinygarble, like compare, sum, aes, etc

i run the hamming example, and get the right result. but when i run compare, bob always get 01:

[ TinyGarble-master]# bin/garbled_circuit/TinyGarble --bob -p 1234 --log2std --scd_file bin/scd/netlists/compare_nbit_ncc.scd --input 0000
garbled_circuit_main.cpp:304 INFO: Connect Bob's client to Alice's server on 127.0.0.1:1234
garbled_circuit_high_mem.cpp:118 INFO: Bob transfer labels time (cc) = 52467460 (cc/bit) = 5.24675e+07
garbled_circuit_high_mem.cpp:705 INFO: Bob communication time (cc) = 8348
garbled_circuit_high_mem.cpp:706 INFO: Bob evaluation time (cc) = 11216
garbled_circuit_main.cpp:319 INFO: Bob's output = 01
garbled_circuit_main.cpp:320 INFO: Total Bob time (cc) = 52879668
01
[ TinyGarble-master]# bin/garbled_circuit/TinyGarble --alice -p 1234 --log2std --scd_file bin/scd/netlists/compare_nbit_ncc.scd --input 0001
garbled_circuit_main.cpp:268 INFO: Open Alice's server on port: 1234
garbled_circuit_high_mem.cpp:75 INFO: Alice transfer labels time (cc) = 53173668 (cc/bit) = 5.31737e+07
garbled_circuit_high_mem.cpp:421 INFO: Non-secret skipped non-XOR gates = 0 out of 1 (0%)
garbled_circuit_high_mem.cpp:427 INFO: Total garbled non-XOR gates = 1
garbled_circuit_high_mem.cpp:430 INFO: Alice communication time (cc) = 29092
garbled_circuit_high_mem.cpp:431 INFO: Alice garbling time (cc) = 17328
garbled_circuit_main.cpp:282 INFO: Alice's output = 0
garbled_circuit_main.cpp:283 INFO: Total Alice time (cc) = 53772364
0

---

[ TinyGarble-master]# bin/garbled_circuit/TinyGarble --bob -p 1234 --log2std --scd_file bin/scd/netlists/compare_nbit_ncc.scd --input 0002
garbled_circuit_main.cpp:304 INFO: Connect Bob's client to Alice's server on 127.0.0.1:1234
garbled_circuit_high_mem.cpp:118 INFO: Bob transfer labels time (cc) = 100081704 (cc/bit) = 1.00082e+08
garbled_circuit_high_mem.cpp:705 INFO: Bob communication time (cc) = 8056
garbled_circuit_high_mem.cpp:706 INFO: Bob evaluation time (cc) = 9036
garbled_circuit_main.cpp:319 INFO: Bob's output = 01
garbled_circuit_main.cpp:320 INFO: Total Bob time (cc) = 100558580
01
[ TinyGarble-master]# bin/garbled_circuit/TinyGarble --alice -p 1234 --log2std --scd_file bin/scd/netlists/compare_nbit_ncc.scd --input 0001
garbled_circuit_main.cpp:268 INFO: Open Alice's server on port: 1234
garbled_circuit_high_mem.cpp:75 INFO: Alice transfer labels time (cc) = 100223568 (cc/bit) = 1.00224e+08
garbled_circuit_high_mem.cpp:421 INFO: Non-secret skipped non-XOR gates = 0 out of 1 (0%)
garbled_circuit_high_mem.cpp:427 INFO: Total garbled non-XOR gates = 1
garbled_circuit_high_mem.cpp:430 INFO: Alice communication time (cc) = 23780
garbled_circuit_high_mem.cpp:431 INFO: Alice garbling time (cc) = 15428
garbled_circuit_main.cpp:282 INFO: Alice's output = 0
garbled_circuit_main.cpp:283 INFO: Total Alice time (cc) = 100782820
0

[siaaron045]

Due to some force majeure factors,I cannot download the source code of Tinygarble .
Could you send the source code to me?
Thanks a million.
email: [email protected]

[siamumar]

To compare two n-bit numbers we need to execute GC for n cycles. Here, your inputs are 16 bits (inputs are in HEX format). So we need to execute GC for 16 cycles by adding the argument -c 16. Moreover, for this function, we are only interested in the output of the last cycle, after all the bits are compared. So we should add the argument --output_mode 2. Please run TinyGarble -h to see all the options.

Following are the correct commands:
For the first example:

bin/garbled_circuit/TinyGarble --alice -p 1234 --log2std --scd_file bin/scd/netlists/compare_nbit_ncc.scd --input 0001 -c 16
garbled_circuit_main.cpp:271 INFO: Open Alice's server on port: 1234
garbled_circuit_high_mem.cpp:75 INFO: Alice transfer labels time (cc) = 153303966       (cc/bit) = 9.5815e+06
garbled_circuit_high_mem.cpp:421 INFO: Non-secret skipped non-XOR gates = 0 out of 16    (0%)
garbled_circuit_high_mem.cpp:427 INFO: Total garbled non-XOR gates = 16
garbled_circuit_high_mem.cpp:430 INFO: Alice communication time (cc) = 358476
garbled_circuit_high_mem.cpp:431 INFO: Alice garbling time (cc) = 28448
garbled_circuit_main.cpp:290 INFO: Alice's output = 0
garbled_circuit_main.cpp:291 INFO: Total Alice time (cc) = 154492420
0

bin/garbled_circuit/TinyGarble --bob -p 1234 --log2std --scd_file bin/scd/netlists/compare_nbit_ncc.scd --input 0000 -c 16 --output_mode 2
garbled_circuit_main.cpp:312 INFO: Connect Bob's client to Alice's server on 127.0.0.1:1234
garbled_circuit_high_mem.cpp:118 INFO: Bob transfer labels time (cc) = 153488500        (cc/bit) = 9.59303e+06
garbled_circuit_high_mem.cpp:705 INFO: Bob communication time (cc) = 261380
garbled_circuit_high_mem.cpp:706 INFO: Bob evaluation time (cc) = 22204
garbled_circuit_main.cpp:331 INFO: Bob's output = 01
garbled_circuit_main.cpp:332 INFO: Total Bob time (cc) = 154686319
01

For the second example:

bin/garbled_circuit/TinyGarble --alice -p 1234 --log2std --scd_file bin/scd/netlists/compare_nbit_ncc.scd --input 0001 -c 16
garbled_circuit_main.cpp:271 INFO: Open Alice's server on port: 1234
garbled_circuit_high_mem.cpp:75 INFO: Alice transfer labels time (cc) = 147205000       (cc/bit) = 9.20031e+06
garbled_circuit_high_mem.cpp:421 INFO: Non-secret skipped non-XOR gates = 0 out of 16    (0%)
garbled_circuit_high_mem.cpp:427 INFO: Total garbled non-XOR gates = 16
garbled_circuit_high_mem.cpp:430 INFO: Alice communication time (cc) = 222840
garbled_circuit_high_mem.cpp:431 INFO: Alice garbling time (cc) = 42516
garbled_circuit_main.cpp:290 INFO: Alice's output = 0
garbled_circuit_main.cpp:291 INFO: Total Alice time (cc) = 148049529
0

bin/garbled_circuit/TinyGarble --bob -p 1234 --log2std --scd_file bin/scd/netlists/compare_nbit_ncc.scd --input 0002 -c 16 --output_mode 2
garbled_circuit_main.cpp:312 INFO: Connect Bob's client to Alice's server on 127.0.0.1:1234
garbled_circuit_high_mem.cpp:118 INFO: Bob transfer labels time (cc) = 147383361        (cc/bit) = 9.21146e+06
garbled_circuit_high_mem.cpp:705 INFO: Bob communication time (cc) = 227626
garbled_circuit_high_mem.cpp:706 INFO: Bob evaluation time (cc) = 38367
garbled_circuit_main.cpp:331 INFO: Bob's output = 0
garbled_circuit_main.cpp:332 INFO: Total Bob time (cc) = 148425567
0

Note that by default, Bob always receives the output. If you want Alice to receive the outputs, you should configure the output_mask.