diff options
| author | Werner Koch <[email protected]> | 1998-02-11 23:22:09 +0000 |
|---|---|---|
| committer | Werner Koch <[email protected]> | 1998-02-11 23:22:09 +0000 |
| commit | bc5789665ae8c9f8fc3d02841cd6c9ade447a12a (patch) | |
| tree | a98aa9fdf58eaffecb38ce481606ee8536280fc8 /cipher/elgamal.c | |
| parent | a couple of changes; but some parts are now broken (diff) | |
| download | gnupg-bc5789665ae8c9f8fc3d02841cd6c9ade447a12a.tar.gz gnupg-bc5789665ae8c9f8fc3d02841cd6c9ade447a12a.zip | |
bug fixes
Diffstat (limited to '')
| -rw-r--r-- | cipher/elgamal.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/cipher/elgamal.c b/cipher/elgamal.c index 13b8579fe..6defbc5f8 100644 --- a/cipher/elgamal.c +++ b/cipher/elgamal.c @@ -322,6 +322,16 @@ elg_verify(MPI a, MPI b, MPI input, ELG_public_key *pkey ) #if 0 /* t1 = (y^a mod p) * (a^b mod p) mod p */ + mpi_powm( t1, pkey->y, a, pkey->p ); + mpi_powm( t2, a, b, pkey->p ); + mpi_mulm( t1, t1, t2, pkey->p ); + + /* t2 = g ^ input mod p */ + mpi_powm( t2, pkey->g, input, pkey->p ); + + rc = !mpi_cmp( t1, t2 ); + #elif 0 + /* t1 = (y^a mod p) * (a^b mod p) mod p */ base[0] = pkey->y; exp[0] = a; base[1] = a; exp[1] = b; base[2] = NULL; exp[2] = NULL; |