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See ChangeLog: Mon Jan 24 13:04:28 CET 2000 Werner Koch

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This commit is contained in:
Werner Koch 2000-01-24 11:55:49 +00:00
parent 704eb738c0
commit 0070faa0ff
88 changed files with 887 additions and 3998 deletions
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20
g10/pubkey-enc.c
View file

@ -24,7 +24,7 @@
#include <string.h>
#include <assert.h>
#include "util.h"
#include "memory.h"
#include <gcrypt.h>
#include "packet.h"
#include "main.h"
#include "keydb.h"
@ -55,7 +55,7 @@ get_session_key( PKT_pubkey_enc *k, DEK *dek )
goto leave;
if( k->keyid[0] || k->keyid[1] ) {
sk = m_alloc_clear( sizeof *sk );
sk = gcry_xcalloc( 1, sizeof *sk );
sk->pubkey_algo = k->pubkey_algo; /* we want a pubkey with this algo*/
if( !(rc = get_seckey( sk, k->keyid )) )
rc = get_it( k, dek, sk, k->keyid );
@ -67,7 +67,7 @@ get_session_key( PKT_pubkey_enc *k, DEK *dek )
for(;;) {
if( sk )
free_secret_key( sk );
sk = m_alloc_clear( sizeof *sk );
sk = gcry_xcalloc( 1, sizeof *sk );
rc=enum_secret_keys( &enum_context, sk, 1);
if( rc ) {
rc = G10ERR_NO_SECKEY;
@ -102,13 +102,16 @@ get_it( PKT_pubkey_enc *k, DEK *dek, PKT_secret_key *sk, u32 *keyid )
int rc;
MPI plain_dek = NULL;
byte *frame = NULL;
unsigned n, nframe;
unsigned n;
size_t nframe;
u16 csum, csum2;
rc = pubkey_decrypt(sk->pubkey_algo, &plain_dek, k->data, sk->skey );
if( rc )
goto leave;
frame = mpi_get_buffer( plain_dek, &nframe, NULL );
if( gcry_mpi_aprint( GCRYMPI_FMT_USG, &frame, &nframe, plain_dek ) )
BUG();
mpi_release( plain_dek ); plain_dek = NULL;
/* Now get the DEK (data encryption key) from the frame
@ -121,7 +124,8 @@ get_it( PKT_pubkey_enc *k, DEK *dek, PKT_secret_key *sk, u32 *keyid )
*
* 0 2 RND(n bytes) 0 A DEK(k bytes) CSUM(2 bytes)
*
* (mpi_get_buffer already removed the leading zero).
* (mpi_get_buffer already removed the leading zero - still true
* for gcry_mpi_aprint(0 which is used now?)
*
* RND are non-zero randow bytes.
* A is the cipher algorithm
@ -174,7 +178,7 @@ get_it( PKT_pubkey_enc *k, DEK *dek, PKT_secret_key *sk, u32 *keyid )
log_hexdump("DEK is:", dek->key, dek->keylen );
/* check that the algo is in the preferences */
{
PKT_public_key *pk = m_alloc_clear( sizeof *pk );
PKT_public_key *pk = gcry_xcalloc( 1, sizeof *pk );
if( (rc = get_pubkey( pk, keyid )) )
log_error("public key problem: %s\n", g10_errstr(rc) );
else if( !pk->local_id && query_trust_record(pk) )
@ -197,7 +201,7 @@ get_it( PKT_pubkey_enc *k, DEK *dek, PKT_secret_key *sk, u32 *keyid )
leave:
mpi_release(plain_dek);
m_free(frame);
gcry_free(frame);
return rc;
}