diff options
Diffstat (limited to 'openssl/apps/prime.c')
| -rw-r--r-- | openssl/apps/prime.c | 46 |
1 files changed, 38 insertions, 8 deletions
diff --git a/openssl/apps/prime.c b/openssl/apps/prime.c index af2fed15a..f1aaef872 100644 --- a/openssl/apps/prime.c +++ b/openssl/apps/prime.c @@ -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; @@ -91,13 +103,13 @@ 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; } - if ((bio_out=BIO_new(BIO_s_file())) != NULL) + if ((bio_out=BIO_new(BIO_s_file())) != NULL) { BIO_set_fp(bio_out,stdout,BIO_NOCLOSE); #ifdef OPENSSL_SYS_VMS @@ -108,14 +120,32 @@ int MAIN(int argc, char **argv) #endif } - if(hex) - BN_hex2bn(&bn,argv[0]); + 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 - BN_dec2bn(&bn,argv[0]); + { + if(hex) + BN_hex2bn(&bn,argv[0]); + else + BN_dec2bn(&bn,argv[0]); - BN_print(bio_out,bn); - BIO_printf(bio_out," is %sprime\n", - BN_is_prime_ex(bn,checks,NULL,NULL) ? "" : "not "); + 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); |