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See ChangeLog: Fri Feb 26 17:55:41 CET 1999 Werner Koch

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Werner Koch 1999-02-26 16:59:48 +00:00
parent 946916a53d
commit 694099b9af
23 changed files with 362 additions and 251 deletions
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28
g10/sig-check.c
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@ -64,6 +64,34 @@ signature_check( PKT_signature *sig, MD_HANDLE digest )
rc = do_check( pk, sig, digest );
free_public_key( pk );
if( !rc && is_status_enabled()
&& ( sig->pubkey_algo == PUBKEY_ALGO_DSA
|| sig->pubkey_algo == PUBKEY_ALGO_ELGAMAL ) ) {
/* If we are using these public key algorithms we can
* calculate an unique signature id, which may be useful
* in an application to prevent replac attacks */
MD_HANDLE md;
int i, nsig = pubkey_get_nsig( sig->pubkey_algo );
byte *p;
md = md_open( DIGEST_ALGO_RMD160, 0);
for(i=0; i < nsig; i++ ) {
unsigned n = mpi_get_nbits( sig->data[i]);
md_putc( md, n>>8);
md_putc( md, n );
p = mpi_get_buffer( sig->data[i], &n, NULL );
md_write( md, p, n );
m_free(p);
}
md_final( md );
p = make_radix64_string( md_read( md, 0 ), 20 );
write_status_text( STATUS_SIG_ID, p );
m_free(p);
md_close(md);
}
return rc;
}