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bcrypt: Pad exported datums in export_gnutls_pubkey_dsa().
Signed-off-by: Paul Gofman <pgofman@codeweavers.com> Signed-off-by: Hans Leidekker <hans@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -795,7 +795,7 @@ static NTSTATUS export_gnutls_pubkey_dsa( gnutls_privkey_t gnutls_key, ULONG bit
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{
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BCRYPT_DSA_KEY_BLOB *dsa_blob;
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gnutls_datum_t p, q, g, y;
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UCHAR *dst, *src;
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UCHAR *dst;
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int ret;
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if ((ret = pgnutls_privkey_export_dsa_raw( gnutls_key, &p, &q, &g, &y, NULL )))
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@ -810,7 +810,7 @@ static NTSTATUS export_gnutls_pubkey_dsa( gnutls_privkey_t gnutls_key, ULONG bit
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return STATUS_NOT_IMPLEMENTED;
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}
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if (!(dsa_blob = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*dsa_blob) + p.size + g.size + y.size )))
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if (!(dsa_blob = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*dsa_blob) + bitlen / 8 * 3 )))
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{
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pgnutls_perror( ret );
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free( p.data ); free( q.data ); free( g.data ); free( y.data );
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@ -818,40 +818,16 @@ static NTSTATUS export_gnutls_pubkey_dsa( gnutls_privkey_t gnutls_key, ULONG bit
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}
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dst = (UCHAR *)(dsa_blob + 1);
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if (p.size == bitlen / 8 + 1 && !p.data[0])
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{
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src = p.data + 1;
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p.size--;
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}
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else src = p.data;
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memcpy( dst, src, p.size );
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export_gnutls_datum( dst, bitlen / 8, &p, NULL );
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dst += p.size;
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if (g.size == bitlen / 8 + 1 && !g.data[0])
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{
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src = g.data + 1;
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g.size--;
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}
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else src = g.data;
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memcpy( dst, src, g.size );
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dst += bitlen / 8;
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export_gnutls_datum( dst, bitlen / 8, &g, NULL );
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dst += g.size;
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if (y.size == bitlen / 8 + 1 && !y.data[0])
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{
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src = y.data + 1;
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y.size--;
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}
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else src = y.data;
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memcpy( dst, src, y.size );
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dst += bitlen / 8;
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export_gnutls_datum( dst, bitlen / 8, &y, NULL );
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dst = dsa_blob->q;
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if (q.size == sizeof(dsa_blob->q) + 1 && !q.data[0])
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{
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src = q.data + 1;
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q.size--;
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}
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else src = q.data;
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memcpy( dst, src, sizeof(dsa_blob->q) );
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export_gnutls_datum( dst, sizeof(dsa_blob->q), &q, NULL );
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dsa_blob->dwMagic = BCRYPT_DSA_PUBLIC_MAGIC;
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dsa_blob->cbKey = bitlen / 8;
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@ -859,7 +835,7 @@ static NTSTATUS export_gnutls_pubkey_dsa( gnutls_privkey_t gnutls_key, ULONG bit
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memset( dsa_blob->Seed, 0, sizeof(dsa_blob->Seed) ); /* FIXME */
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*pubkey = (UCHAR *)dsa_blob;
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*pubkey_len = sizeof(*dsa_blob) + p.size + g.size + y.size;
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*pubkey_len = sizeof(*dsa_blob) + dsa_blob->cbKey * 3;
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free( p.data ); free( q.data ); free( g.data ); free( y.data );
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return STATUS_SUCCESS;
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