Implementation notes: amd64, hertz, crypto_aead/lacv1
Computer: hertz
Microarchitecture: amd64; Zen 4 (a60f12)
Architecture: amd64
CPU ID: AuthenticAMD-00a60f12-178bfbff
SUPERCOP version: 20240716
Operation: crypto_aead
Primitive: lacv1
| Time | Object size | Test size | Implementation | Compiler | Benchmark date | SUPERCOP version |
|---|
| 394802 | 26111 16 0 | 47288 860 1096 | T:ref | clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall | 20240716 | 20240716 |
| 396258 | 26079 16 0 | 47144 860 1096 | T:ref | clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall | 20240716 | 20240716 |
| 1433387 | 3945 16 0 | 18889 852 1096 | T:ref | clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall | 20240716 | 20240716 |
| 1824171 | 4882 16 0 | 20198 836 1096 | T:ref | gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall | 20240716 | 20240716 |
| 2411846 | 3857 16 0 | 17497 812 1064 | T:ref | gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall | 20240716 | 20240716 |
Compiler output
encrypt.c: In function 'padding',
encrypt.c: inlined from 'crypto_aead_lacv1_ref_timingleaks_encrypt' at encrypt.c:426:3:
encrypt.c: encrypt.c:25:28: warning: array subscript -5 is outside array bounds of 'unsigned char[0]' [-Warray-bounds=]
encrypt.c: 25 | xpad[xpadlen - 5] = ((xlen * 8) >> 32) & 0xff;
encrypt.c: | ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
encrypt.c: encrypt.c: In function 'crypto_aead_lacv1_ref_timingleaks_encrypt':
encrypt.c: encrypt.c:425:41: note: at offset -5 into object of size 0 allocated by 'malloc'
encrypt.c: 425 | mpad = (unsigned char *)malloc(mpadlen); //the array to store padded message(mpad bytes)
encrypt.c: | ^~~~~~~~~~~~~~~
encrypt.c: In function 'padding',
encrypt.c: inlined from 'crypto_aead_lacv1_ref_timingleaks_encrypt' at encrypt.c:426:3:
encrypt.c: encrypt.c:26:28: warning: array subscript -4 is outside array bounds of 'unsigned char[0]' [-Warray-bounds=]
encrypt.c: 26 | xpad[xpadlen - 4] = ((xlen * 8) >> 24) & 0xff;
encrypt.c: | ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
encrypt.c: encrypt.c: In function 'crypto_aead_lacv1_ref_timingleaks_encrypt':
encrypt.c: encrypt.c:425:41: note: at offset -4 into object of size 0 allocated by 'malloc'
encrypt.c: 425 | mpad = (unsigned char *)malloc(mpadlen); //the array to store padded message(mpad bytes)
encrypt.c: | ^~~~~~~~~~~~~~~
encrypt.c: In function 'padding',
encrypt.c: inlined from 'crypto_aead_lacv1_ref_timingleaks_encrypt' at encrypt.c:426:3:
encrypt.c: encrypt.c:27:28: warning: array subscript -3 is outside array bounds of 'unsigned char[0]' [-Warray-bounds=]
encrypt.c: 27 | xpad[xpadlen - 3] = ((xlen * 8) >> 16) & 0xff;
encrypt.c: | ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
encrypt.c: encrypt.c: In function 'crypto_aead_lacv1_ref_timingleaks_encrypt':
encrypt.c: encrypt.c:425:41: note: at offset -3 into object of size 0 allocated by 'malloc'
encrypt.c: ...
Number of similar (implementation,compiler) pairs: 1, namely:
| Implementation | Compiler |
| T:ref | gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0) |
Compiler output
encrypt.c: encrypt.c: In function 'crypto_aead_lacv1_ref_timingleaks_decrypt':
encrypt.c: encrypt.c:619:57: warning: 'mpad' may be used uninitialized [-Wmaybe-uninitialized]
encrypt.c: 619 | datastate[j + 2] ^= mpad[i + j];
encrypt.c: | ^
encrypt.c: encrypt.c:524:24: note: 'mpad' was declared here
encrypt.c: 524 | unsigned char *mpad;
encrypt.c: | ^~~~
Number of similar (implementation,compiler) pairs: 1, namely:
| Implementation | Compiler |
| T:ref | gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0) |
Namespace violations
encrypt.o E T
encrypt.o G T
encrypt.o Gleak T
encrypt.o KS T
encrypt.o S D
encrypt.o key_sched_LBlocks T
encrypt.o padding T
Number of similar (implementation,compiler) pairs: 5, namely:
| Implementation | Compiler |
| T:ref | clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1)) |
| T:ref | clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1)) |
| T:ref | clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1)) |
| T:ref | gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0) |
| T:ref | gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0) |