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| author | Werner Koch <wk@gnupg.org> | 1999-07-15 08:16:41 +0000 |
|---|---|---|
| committer | Werner Koch <wk@gnupg.org> | 1999-07-15 08:16:41 +0000 |
| commit | 01cb535634775a784fa7b7fa701ec54f8f211111 (patch) | |
| tree | 059b6370affdc169ae41b94bc71c3f153454904d /cipher/elgamal.c | |
| parent | 36a06a94b54f8176c669fab51a7b4258116555b1 (diff) | |
| download | libgcrypt-01cb535634775a784fa7b7fa701ec54f8f211111.tar.gz | |
See ChangeLog: Thu Jul 15 10:15:35 CEST 1999 Werner Koch
Diffstat (limited to 'cipher/elgamal.c')
| -rw-r--r-- | cipher/elgamal.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/cipher/elgamal.c b/cipher/elgamal.c index 4b975862..bbf9c278 100644 --- a/cipher/elgamal.c +++ b/cipher/elgamal.c @@ -459,6 +459,8 @@ elg_check_secret_key( int algo, MPI *skey ) if( !is_ELGAMAL(algo) ) return G10ERR_PUBKEY_ALGO; + if( !skey[0] || !skey[1] || !skey[2] || !skey[3] ) + return G10ERR_BAD_MPI; sk.p = skey[0]; sk.g = skey[1]; @@ -479,6 +481,8 @@ elg_encrypt( int algo, MPI *resarr, MPI data, MPI *pkey ) if( !is_ELGAMAL(algo) ) return G10ERR_PUBKEY_ALGO; + if( !data || !pkey[0] || !pkey[1] || !pkey[2] ) + return G10ERR_BAD_MPI; pk.p = pkey[0]; pk.g = pkey[1]; @@ -496,6 +500,9 @@ elg_decrypt( int algo, MPI *result, MPI *data, MPI *skey ) if( !is_ELGAMAL(algo) ) return G10ERR_PUBKEY_ALGO; + if( !data[0] || !data[1] + || !skey[0] || !skey[1] || !skey[2] || !skey[3] ) + return G10ERR_BAD_MPI; sk.p = skey[0]; sk.g = skey[1]; @@ -513,6 +520,8 @@ elg_sign( int algo, MPI *resarr, MPI data, MPI *skey ) if( !is_ELGAMAL(algo) ) return G10ERR_PUBKEY_ALGO; + if( !data || !skey[0] || !skey[1] || !skey[2] || !skey[3] ) + return G10ERR_BAD_MPI; sk.p = skey[0]; sk.g = skey[1]; @@ -532,6 +541,9 @@ elg_verify( int algo, MPI hash, MPI *data, MPI *pkey, if( !is_ELGAMAL(algo) ) return G10ERR_PUBKEY_ALGO; + if( !data[0] || !data[1] || !hash + || !pkey[0] || !pkey[1] || !pkey[2] ) + return G10ERR_BAD_MPI; pk.p = pkey[0]; pk.g = pkey[1]; |