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can create v4 signatures

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This commit is contained in:
Werner Koch 1998-05-13 17:53:36 +00:00
parent 69cf10ffab
commit 0e5a31d7be
42 changed files with 1101 additions and 325 deletions
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67
g10/sign.c
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@ -266,19 +266,51 @@ sign_file( STRLIST filenames, int detached, STRLIST locusr,
skc = skc_rover->skc;
/* build the signature packet */
/* fixme: this code is partly duplicated in make_keysig_packet */
sig = m_alloc_clear( sizeof *sig );
sig->version = skc->version;
keyid_from_skc( skc, sig->keyid );
sig->pubkey_algo = skc->pubkey_algo;
sig->timestamp = make_timestamp();
sig->sig_class = opt.textmode && !outfile? 0x01 : 0x00;
md = md_copy( mfx.md );
if( sig->version >= 4 ) {
build_sig_subpkt_from_sig( sig );
md_putc( md, sig->version );
}
md_putc( md, sig->sig_class );
{ u32 a = sig->timestamp;
if( sig->version < 4 ) {
u32 a = sig->timestamp;
md_putc( md, (a >> 24) & 0xff );
md_putc( md, (a >> 16) & 0xff );
md_putc( md, (a >> 8) & 0xff );
md_putc( md, a & 0xff );
}
else {
byte buf[6];
size_t n;
md_putc( md, sig->pubkey_algo );
md_putc( md, sig->digest_algo );
if( sig->hashed_data ) {
n = (sig->hashed_data[0] << 8) | sig->hashed_data[1];
md_write( md, sig->hashed_data, n+2 );
n += 6;
}
else
n = 6;
/* add some magic */
buf[0] = sig->version;
buf[1] = 0xff;
buf[2] = n >> 24; /* hmmm, n is only 16 bit, so this is always 0 */
buf[3] = n >> 16;
buf[4] = n >> 8;
buf[5] = n;
md_write( md, buf, 6 );
}
md_final( md );
if( is_ELGAMAL(sig->pubkey_algo) )
@ -431,19 +463,50 @@ clearsign_file( const char *fname, STRLIST locusr, const char *outfile )
skc = skc_rover->skc;
/* build the signature packet */
/* fixme: this code is duplicated above */
sig = m_alloc_clear( sizeof *sig );
sig->version = skc->version;
keyid_from_skc( skc, sig->keyid );
sig->pubkey_algo = skc->pubkey_algo;
sig->timestamp = make_timestamp();
sig->sig_class = 0x01;
md = md_copy( textmd );
if( sig->version >= 4 ) {
build_sig_subpkt_from_sig( sig );
md_putc( md, sig->version );
}
md_putc( md, sig->sig_class );
{ u32 a = sig->timestamp;
if( sig->version < 4 ) {
u32 a = sig->timestamp;
md_putc( md, (a >> 24) & 0xff );
md_putc( md, (a >> 16) & 0xff );
md_putc( md, (a >> 8) & 0xff );
md_putc( md, a & 0xff );
}
else {
byte buf[6];
size_t n;
md_putc( md, sig->pubkey_algo );
md_putc( md, sig->digest_algo );
if( sig->hashed_data ) {
n = (sig->hashed_data[0] << 8) | sig->hashed_data[1];
md_write( md, sig->hashed_data, n+2 );
n += 6;
}
else
n = 6;
/* add some magic */
buf[0] = sig->version;
buf[1] = 0xff;
buf[2] = n >> 24; /* hmmm, n is only 16 bit, so this is always 0 */
buf[3] = n >> 16;
buf[4] = n >> 8;
buf[5] = n;
md_write( md, buf, 6 );
}
md_final( md );
if( is_ELGAMAL(sig->pubkey_algo) )