security-and-privacy/gnupg
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edit-key is now complete

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This commit is contained in:
Werner Koch 1998-07-29 19:35:05 +00:00
parent 1a80de41a5
commit 5ae562b41d
48 changed files with 2044 additions and 984 deletions
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16
g10/cipher.c
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@ -42,7 +42,8 @@ write_header( cipher_filter_context_t *cfx, IOBUF a )
{
PACKET pkt;
PKT_encrypted ed;
byte temp[10];
byte temp[18];
unsigned blocksize;
memset( &ed, 0, sizeof ed );
ed.len = cfx->datalen;
@ -52,15 +53,18 @@ write_header( cipher_filter_context_t *cfx, IOBUF a )
pkt.pkt.encrypted = &ed;
if( build_packet( a, &pkt ))
log_bug("build_packet(ENCR_DATA) failed\n");
randomize_buffer( temp, 8, 1 );
temp[8] = temp[6];
temp[9] = temp[7];
blocksize = cipher_get_blocksize( cfx->dek->algo );
if( blocksize < 8 || blocksize > 16 )
log_fatal("unsupported blocksize %u\n", blocksize );
randomize_buffer( temp, blocksize, 1 );
temp[blocksize] = temp[blocksize-2];
temp[blocksize+1] = temp[blocksize-1];
cfx->cipher_hd = cipher_open( cfx->dek->algo, CIPHER_MODE_AUTO_CFB, 1 );
cipher_setkey( cfx->cipher_hd, cfx->dek->key, cfx->dek->keylen );
cipher_setiv( cfx->cipher_hd, NULL );
cipher_encrypt( cfx->cipher_hd, temp, temp, 10);
cipher_encrypt( cfx->cipher_hd, temp, temp, blocksize+2);
cipher_sync( cfx->cipher_hd );
iobuf_write(a, temp, 10);
iobuf_write(a, temp, blocksize+2);
cfx->header=1;
}