Commit 2c2e46db authored by Ben Laurie's avatar Ben Laurie
Browse files

Generate primes, too.

parent 770bc596

apps/prime.c

+38 −8
Original line number Diff line number Diff line
@@ -62,6 +62,9 @@ int MAIN(int argc, char **argv) 
    {

    int hex=0;

    int checks=20;

    int generate=0;

    int bits=0;

    int safe=0;

    BIGNUM *bn=NULL;

    BIO *bio_out;
@@ -77,6 +80,15 @@ int MAIN(int argc, char **argv) 
	{

	if(!strcmp(*argv,"-hex"))

	    hex=1;

	else if(!strcmp(*argv,"-generate"))

	    generate=1;

	else if(!strcmp(*argv,"-bits"))

	    if(--argc < 1)

		goto bad;

	    else

		bits=atoi(*++argv);

	else if(!strcmp(*argv,"-safe"))

	    safe=1;

	else if(!strcmp(*argv,"-checks"))

	    if(--argc < 1)

		goto bad;
@@ -91,7 +103,7 @@ int MAIN(int argc, char **argv) 
	++argv;

	}



    if (argv[0] == NULL)

    if (argv[0] == NULL && !generate)

	{

	BIO_printf(bio_err,"No prime specified\n");

	goto bad;
@@ -108,6 +120,23 @@ int MAIN(int argc, char **argv) 
#endif

	}



    if(generate)

	{

	char *s;



	if(!bits)

	    {

	    BIO_printf(bio_err,"Specifiy the number of bits.\n");

	    return 1;

	    }

	bn=BN_new();

	BN_generate_prime_ex(bn,bits,safe,NULL,NULL,NULL);

	s=hex ? BN_bn2hex(bn) : BN_bn2dec(bn);

	BIO_printf(bio_out,"%s\n",s);

	OPENSSL_free(s);

	}

    else

	{

	if(hex)

	    BN_hex2bn(&bn,argv[0]);

	else
@@ -116,6 +145,7 @@ int MAIN(int argc, char **argv) 
	BN_print(bio_out,bn);

	BIO_printf(bio_out," is %sprime\n",

		   BN_is_prime_ex(bn,checks,NULL,NULL) ? "" : "not ");

	}



    BN_free(bn);

    BIO_free_all(bio_out);