int main( void )
{
mpi E, P, Q, N, H, D, X, Y, Z;
mpi_init( &E, &P, &Q, &N, &H,
&D, &X, &Y, &Z, NULL );
mpi_read_string( &P, 10, "2789" );
mpi_read_string( &Q, 10, "3203" );
mpi_read_string( &E, 10, "257" );
mpi_mul_mpi( &N, &P, &Q );
printf( "\n Public key:\n\n" );
mpi_write_file( " N = ", &N, 10, NULL );
mpi_write_file( " E = ", &E, 10, NULL );
printf( "\n Private key:\n\n" );
mpi_write_file( " P = ", &P, 10, NULL );
mpi_write_file( " Q = ", &Q, 10, NULL );
mpi_sub_int( &P, &P, 1 );
mpi_sub_int( &Q, &Q, 1 );
mpi_mul_mpi( &H, &P, &Q );
mpi_inv_mod( &D, &E, &H );
mpi_write_file( " D = E^-1 mod (P-1)*(Q-1) = ",
&D, 10, NULL );
mpi_read_string( &X, 10, "55555" );
mpi_exp_mod( &Y, &X, &E, &N, NULL );
mpi_exp_mod( &Z, &Y, &D, &N, NULL );
printf( "\n RSA operation:\n\n" );
mpi_write_file( " X (plaintext) = ", &X, 10, NULL );
mpi_write_file( " Y (ciphertext) = X^E mod N = ", &Y, 10, NULL );
mpi_write_file( " Z (decrypted) = Y^D mod N = ", &Z, 10, NULL );
printf( "\n" );
mpi_free( &Z, &Y, &X, &D, &H,
&N, &Q, &P, &E, NULL );
#ifdef WIN32
printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( 0 );
}
int main( int argc, char *argv[] )
{
int ret = 0;
rsa_context rsa;
char buf[1024];
int i, j, n;
char *p, *q;
/*
* Set to sane values
*/
memset( &rsa, 0, sizeof( rsa_context ) );
memset( buf, 0, 1024 );
if( argc == 0 )
{
usage:
printf( USAGE );
goto exit;
}
opt.mode = DFL_MODE;
opt.filename = DFL_FILENAME;
opt.debug_level = DFL_DEBUG_LEVEL;
for( i = 1; i < argc; i++ )
{
n = strlen( argv[i] );
for( j = 0; j < n; j++ )
{
if( argv[i][j] >= 'A' && argv[i][j] <= 'Z' )
argv[i][j] |= 0x20;
}
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "mode" ) == 0 )
{
if( strcmp( q, "private" ) == 0 )
opt.mode = MODE_PRIVATE;
else if( strcmp( q, "public" ) == 0 )
opt.mode = MODE_PUBLIC;
else
goto usage;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "debug_level" ) == 0 )
{
opt.debug_level = atoi( q );
if( opt.debug_level < 0 || opt.debug_level > 65535 )
goto usage;
}
else
goto usage;
}
if( opt.mode == MODE_PRIVATE )
{
/*
* 1.1. Load the key
*/
printf( "\n . Loading the private key ..." );
fflush( stdout );
ret = x509parse_keyfile( &rsa, opt.filename, NULL );
if( ret != 0 )
{
#ifdef POLARSSL_ERROR_C
error_strerror( ret, buf, 1024 );
#endif
printf( " failed\n ! x509parse_key returned %d - %s\n\n", ret, buf );
rsa_free( &rsa );
goto exit;
}
printf( " ok\n" );
/*
* 1.2 Print the key
*/
printf( " . Key information ...\n" );
mpi_write_file( "N: ", &rsa.N, 16, NULL );
mpi_write_file( "E: ", &rsa.E, 16, NULL );
mpi_write_file( "D: ", &rsa.D, 16, NULL );
mpi_write_file( "P: ", &rsa.P, 16, NULL );
mpi_write_file( "Q: ", &rsa.Q, 16, NULL );
mpi_write_file( "DP: ", &rsa.DP, 16, NULL );
mpi_write_file( "DQ: ", &rsa.DQ, 16, NULL );
mpi_write_file( "QP: ", &rsa.QP, 16, NULL );
}
else if( opt.mode == MODE_PUBLIC )
{
/*
* 1.1. Load the key
*/
printf( "\n . Loading the public key ..." );
fflush( stdout );
ret = x509parse_public_keyfile( &rsa, opt.filename );
if( ret != 0 )
{
#ifdef POLARSSL_ERROR_C
error_strerror( ret, buf, 1024 );
#endif
printf( " failed\n ! x509parse_public_key returned %d - %s\n\n", ret, buf );
rsa_free( &rsa );
goto exit;
}
printf( " ok\n" );
/*
* 1.2 Print the key
*/
printf( " . Key information ...\n" );
mpi_write_file( "N: ", &rsa.N, 16, NULL );
mpi_write_file( "E: ", &rsa.E, 16, NULL );
}
else
goto usage;
exit:
rsa_free( &rsa );
#ifdef WIN32
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret = 1;
mpi G, P, Q;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
const char *pers = "dh_genprime";
FILE *fout;
((void) argc);
((void) argv);
mpi_init( &G ); mpi_init( &P ); mpi_init( &Q );
entropy_init( &entropy );
if( ( ret = mpi_read_string( &G, 10, GENERATOR ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_read_string returned %d\n", ret );
goto exit;
}
polarssl_printf( "\nWARNING: You should not generate and use your own DHM primes\n" );
polarssl_printf( " unless you are very certain of what you are doing!\n" );
polarssl_printf( " Failing to follow this instruction may result in\n" );
polarssl_printf( " weak security for your connections! Use the\n" );
polarssl_printf( " predefined DHM parameters from dhm.h instead!\n\n" );
polarssl_printf( "============================================================\n\n" );
polarssl_printf( " ! Generating large primes may take minutes!\n" );
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Generating the modulus, please wait..." );
fflush( stdout );
/*
* This can take a long time...
*/
if( ( ret = mpi_gen_prime( &P, DH_P_SIZE, 1,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_gen_prime returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Verifying that Q = (P-1)/2 is prime..." );
fflush( stdout );
if( ( ret = mpi_sub_int( &Q, &P, 1 ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_sub_int returned %d\n\n", ret );
goto exit;
}
if( ( ret = mpi_div_int( &Q, NULL, &Q, 2 ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_div_int returned %d\n\n", ret );
goto exit;
}
if( ( ret = mpi_is_prime( &Q, ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_is_prime returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Exporting the value in dh_prime.txt..." );
fflush( stdout );
if( ( fout = fopen( "dh_prime.txt", "wb+" ) ) == NULL )
{
ret = 1;
polarssl_printf( " failed\n ! Could not create dh_prime.txt\n\n" );
goto exit;
}
if( ( ret = mpi_write_file( "P = ", &P, 16, fout ) != 0 ) ||
( ret = mpi_write_file( "G = ", &G, 16, fout ) != 0 ) )
{
polarssl_printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n\n" );
fclose( fout );
exit:
mpi_free( &G ); mpi_free( &P ); mpi_free( &Q );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
polarssl_printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( void )
{
int ret;
rsa_context rsa;
havege_state hs;
FILE *fpub = NULL;
FILE *fpriv = NULL;
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
havege_init( &hs );
printf( " ok\n . Generating the RSA key [ %d-bit ]...", KEY_SIZE );
fflush( stdout );
rsa_init( &rsa, RSA_PKCS_V15, 0 );
if( ( ret = rsa_gen_key( &rsa, havege_rand, &hs, KEY_SIZE, EXPONENT ) ) != 0 )
{
printf( " failed\n ! rsa_gen_key returned %d\n\n", ret );
goto exit;
}
printf( " ok\n . Exporting the public key in rsa_pub.txt...." );
fflush( stdout );
if( ( fpub = fopen( "rsa_pub.txt", "wb+" ) ) == NULL )
{
printf( " failed\n ! could not open rsa_pub.txt for writing\n\n" );
ret = 1;
goto exit;
}
if( ( ret = mpi_write_file( "N = ", &rsa.N, 16, fpub ) ) != 0 ||
( ret = mpi_write_file( "E = ", &rsa.E, 16, fpub ) ) != 0 )
{
printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
printf( " ok\n . Exporting the private key in rsa_priv.txt..." );
fflush( stdout );
if( ( fpriv = fopen( "rsa_priv.txt", "wb+" ) ) == NULL )
{
printf( " failed\n ! could not open rsa_priv.txt for writing\n" );
ret = 1;
goto exit;
}
if( ( ret = mpi_write_file( "N = " , &rsa.N , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "E = " , &rsa.E , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "D = " , &rsa.D , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "P = " , &rsa.P , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "Q = " , &rsa.Q , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "DP = ", &rsa.DP, 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "DQ = ", &rsa.DQ, 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "QP = ", &rsa.QP, 16, fpriv ) ) != 0 )
{
printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
/*
printf( " ok\n . Generating the certificate..." );
x509write_init_raw( &cert );
x509write_add_pubkey( &cert, &rsa );
x509write_add_subject( &cert, "CN='localhost'" );
x509write_add_validity( &cert, "2007-09-06 17:00:32",
"2010-09-06 17:00:32" );
x509write_create_selfsign( &cert, &rsa );
x509write_crtfile( &cert, "cert.der", X509_OUTPUT_DER );
x509write_crtfile( &cert, "cert.pem", X509_OUTPUT_PEM );
x509write_free_raw( &cert );
*/
printf( " ok\n\n" );
exit:
if( fpub != NULL )
fclose( fpub );
if( fpriv != NULL )
fclose( fpriv );
rsa_free( &rsa );
#ifdef WIN32
printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret = 0;
pk_context pk;
char buf[1024];
int i;
char *p, *q;
/*
* Set to sane values
*/
pk_init( &pk );
memset( buf, 0, sizeof(buf) );
if( argc == 0 )
{
usage:
printf( USAGE );
goto exit;
}
opt.mode = DFL_MODE;
opt.filename = DFL_FILENAME;
opt.password = DFL_PASSWORD;
opt.password_file = DFL_PASSWORD_FILE;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "mode" ) == 0 )
{
if( strcmp( q, "private" ) == 0 )
opt.mode = MODE_PRIVATE;
else if( strcmp( q, "public" ) == 0 )
opt.mode = MODE_PUBLIC;
else
goto usage;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "password" ) == 0 )
opt.password = q;
else if( strcmp( p, "password_file" ) == 0 )
opt.password_file = q;
else
goto usage;
}
if( opt.mode == MODE_PRIVATE )
{
if( strlen( opt.password ) && strlen( opt.password_file ) )
{
printf( "Error: cannot have both password and password_file\n" );
goto usage;
}
if( strlen( opt.password_file ) )
{
FILE *f;
printf( "\n . Loading the password file ..." );
if( ( f = fopen( opt.password_file, "rb" ) ) == NULL )
{
printf( " failed\n ! fopen returned NULL\n" );
goto exit;
}
fgets( buf, sizeof(buf), f );
fclose( f );
i = (int) strlen( buf );
if( buf[i - 1] == '\n' ) buf[i - 1] = '\0';
if( buf[i - 2] == '\r' ) buf[i - 2] = '\0';
opt.password = buf;
}
/*
* 1.1. Load the key
*/
printf( "\n . Loading the private key ..." );
fflush( stdout );
ret = pk_parse_keyfile( &pk, opt.filename, opt.password );
if( ret != 0 )
{
printf( " failed\n ! pk_parse_keyfile returned -0x%04x\n", -ret );
goto exit;
}
printf( " ok\n" );
/*
* 1.2 Print the key
*/
printf( " . Key information ...\n" );
#if defined(POLARSSL_RSA_C)
if( pk_get_type( &pk ) == POLARSSL_PK_RSA )
{
rsa_context *rsa = pk_rsa( pk );
mpi_write_file( "N: ", &rsa->N, 16, NULL );
mpi_write_file( "E: ", &rsa->E, 16, NULL );
mpi_write_file( "D: ", &rsa->D, 16, NULL );
mpi_write_file( "P: ", &rsa->P, 16, NULL );
mpi_write_file( "Q: ", &rsa->Q, 16, NULL );
mpi_write_file( "DP: ", &rsa->DP, 16, NULL );
mpi_write_file( "DQ: ", &rsa->DQ, 16, NULL );
mpi_write_file( "QP: ", &rsa->QP, 16, NULL );
}
else
#endif
#if defined(POLARSSL_ECP_C)
if( pk_get_type( &pk ) == POLARSSL_PK_ECKEY )
{
ecp_keypair *ecp = pk_ec( pk );
mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL );
mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL );
mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL );
mpi_write_file( "D : ", &ecp->d , 16, NULL );
}
else
#endif
{
printf("Do not know how to print key information for this type\n" );
goto exit;
}
}
else if( opt.mode == MODE_PUBLIC )
{
/*
* 1.1. Load the key
*/
printf( "\n . Loading the public key ..." );
fflush( stdout );
ret = pk_parse_public_keyfile( &pk, opt.filename );
if( ret != 0 )
{
printf( " failed\n ! pk_parse_public_keyfile returned -0x%04x\n", -ret );
goto exit;
}
printf( " ok\n" );
printf( " . Key information ...\n" );
#if defined(POLARSSL_RSA_C)
if( pk_get_type( &pk ) == POLARSSL_PK_RSA )
{
rsa_context *rsa = pk_rsa( pk );
mpi_write_file( "N: ", &rsa->N, 16, NULL );
mpi_write_file( "E: ", &rsa->E, 16, NULL );
}
else
#endif
#if defined(POLARSSL_ECP_C)
if( pk_get_type( &pk ) == POLARSSL_PK_ECKEY )
{
ecp_keypair *ecp = pk_ec( pk );
mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL );
mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL );
mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL );
}
else
#endif
{
printf("Do not know how to print key information for this type\n" );
goto exit;
}
}
else
goto usage;
exit:
#if defined(POLARSSL_ERROR_C)
polarssl_strerror( ret, buf, sizeof(buf) );
printf( " ! Last error was: %s\n", buf );
#endif
pk_free( &pk );
#if defined(_WIN32)
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret;
ecdsa_context ctx_sign, ctx_verify;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
unsigned char hash[] = "This should be the hash of a message.";
unsigned char sig[512];
size_t sig_len;
const char *pers = "ecdsa";
((void) argv);
ecdsa_init( &ctx_sign );
ecdsa_init( &ctx_verify );
memset(sig, 0, sizeof( sig ) );
ret = 1;
if( argc != 1 )
{
polarssl_printf( "usage: ecdsa\n" );
#if defined(_WIN32)
polarssl_printf( "\n" );
#endif
goto exit;
}
/*
* Generate a key pair for signing
*/
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Generating key pair..." );
fflush( stdout );
if( ( ret = ecdsa_genkey( &ctx_sign, ECPARAMS,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! ecdsa_genkey returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok (key size: %d bits)\n", (int) ctx_sign.grp.pbits );
dump_pubkey( " + Public key: ", &ctx_sign );
/*
* Sign some message hash
*/
polarssl_printf( " . Signing message..." );
fflush( stdout );
if( ( ret = ecdsa_write_signature( &ctx_sign,
hash, sizeof( hash ),
sig, &sig_len,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! ecdsa_genkey returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok (signature length = %u)\n", (unsigned int) sig_len );
dump_buf( " + Hash: ", hash, sizeof hash );
dump_buf( " + Signature: ", sig, sig_len );
/*
* Signature is serialized as defined by RFC 4492 p. 20,
* but one can also access 'r' and 's' directly from the context
*/
#ifdef POLARSSL_FS_IO
mpi_write_file( " r = ", &ctx_sign.r, 16, NULL );
mpi_write_file( " s = ", &ctx_sign.s, 16, NULL );
#endif
/*
* Transfer public information to verifying context
*
* We could use the same context for verification and signatures, but we
* chose to use a new one in order to make it clear that the verifying
* context only needs the public key (Q), and not the private key (d).
*/
polarssl_printf( " . Preparing verification context..." );
fflush( stdout );
if( ( ret = ecp_group_copy( &ctx_verify.grp, &ctx_sign.grp ) ) != 0 )
{
polarssl_printf( " failed\n ! ecp_group_copy returned %d\n", ret );
goto exit;
}
if( ( ret = ecp_copy( &ctx_verify.Q, &ctx_sign.Q ) ) != 0 )
{
polarssl_printf( " failed\n ! ecp_copy returned %d\n", ret );
goto exit;
}
ret = 0;
/*
* Verify signature
*/
polarssl_printf( " ok\n . Verifying signature..." );
fflush( stdout );
if( ( ret = ecdsa_read_signature( &ctx_verify,
hash, sizeof( hash ),
sig, sig_len ) ) != 0 )
{
polarssl_printf( " failed\n ! ecdsa_read_signature returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n" );
exit:
#if defined(_WIN32)
polarssl_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
ecdsa_free( &ctx_verify );
ecdsa_free( &ctx_sign );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
return( ret );
}
int main( int argc, char *argv[] )
{
int ret;
rsa_context rsa;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
FILE *fpub = NULL;
FILE *fpriv = NULL;
const char *pers = "rsa_genkey";
((void) argc);
((void) argv);
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
printf( " ok\n . Generating the RSA key [ %d-bit ]...", KEY_SIZE );
fflush( stdout );
rsa_init( &rsa, RSA_PKCS_V15, 0 );
if( ( ret = rsa_gen_key( &rsa, ctr_drbg_random, &ctr_drbg, KEY_SIZE,
EXPONENT ) ) != 0 )
{
printf( " failed\n ! rsa_gen_key returned %d\n\n", ret );
goto exit;
}
printf( " ok\n . Exporting the public key in rsa_pub.txt...." );
fflush( stdout );
if( ( fpub = fopen( "rsa_pub.txt", "wb+" ) ) == NULL )
{
printf( " failed\n ! could not open rsa_pub.txt for writing\n\n" );
ret = 1;
goto exit;
}
if( ( ret = mpi_write_file( "N = ", &rsa.N, 16, fpub ) ) != 0 ||
( ret = mpi_write_file( "E = ", &rsa.E, 16, fpub ) ) != 0 )
{
printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
printf( " ok\n . Exporting the private key in rsa_priv.txt..." );
fflush( stdout );
if( ( fpriv = fopen( "rsa_priv.txt", "wb+" ) ) == NULL )
{
printf( " failed\n ! could not open rsa_priv.txt for writing\n" );
ret = 1;
goto exit;
}
if( ( ret = mpi_write_file( "N = " , &rsa.N , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "E = " , &rsa.E , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "D = " , &rsa.D , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "P = " , &rsa.P , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "Q = " , &rsa.Q , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "DP = ", &rsa.DP, 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "DQ = ", &rsa.DQ, 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "QP = ", &rsa.QP, 16, fpriv ) ) != 0 )
{
printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
/*
printf( " ok\n . Generating the certificate..." );
x509write_init_raw( &cert );
x509write_add_pubkey( &cert, &rsa );
x509write_add_subject( &cert, "CN='localhost'" );
x509write_add_validity( &cert, "2007-09-06 17:00:32",
"2010-09-06 17:00:32" );
x509write_create_selfsign( &cert, &rsa );
x509write_crtfile( &cert, "cert.der", X509_OUTPUT_DER );
x509write_crtfile( &cert, "cert.pem", X509_OUTPUT_PEM );
x509write_free_raw( &cert );
*/
printf( " ok\n\n" );
exit:
if( fpub != NULL )
fclose( fpub );
if( fpriv != NULL )
fclose( fpriv );
rsa_free( &rsa );
#if defined(_WIN32)
printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret = 0;
rsa_context rsa;
char buf[1024];
int i;
char *p, *q;
/*
* Set to sane values
*/
memset( &rsa, 0, sizeof( rsa_context ) );
memset( buf, 0, 1024 );
if( argc == 0 )
{
usage:
printf( USAGE );
goto exit;
}
opt.mode = DFL_MODE;
opt.filename = DFL_FILENAME;
opt.password = DFL_PASSWORD;
opt.password_file = DFL_PASSWORD_FILE;
opt.debug_level = DFL_DEBUG_LEVEL;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "mode" ) == 0 )
{
if( strcmp( q, "private" ) == 0 )
opt.mode = MODE_PRIVATE;
else if( strcmp( q, "public" ) == 0 )
opt.mode = MODE_PUBLIC;
else
goto usage;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "password" ) == 0 )
opt.password = q;
else if( strcmp( p, "password_file" ) == 0 )
opt.password_file = q;
else if( strcmp( p, "debug_level" ) == 0 )
{
opt.debug_level = atoi( q );
if( opt.debug_level < 0 || opt.debug_level > 65535 )
goto usage;
}
else
goto usage;
}
if( opt.mode == MODE_PRIVATE )
{
if( strlen( opt.password ) && strlen( opt.password_file ) )
{
printf( "Error: cannot have both password and password_file\n" );
goto usage;
}
if( strlen( opt.password_file ) )
{
FILE *f;
printf( "\n . Loading the password file ..." );
if( ( f = fopen( opt.password_file, "rb" ) ) == NULL )
{
printf( " failed\n ! fopen returned NULL\n" );
goto exit;
}
fgets( buf, 1024, f );
fclose( f );
i = strlen( buf );
if( buf[i - 1] == '\n' ) buf[i - 1] = '\0';
if( buf[i - 2] == '\r' ) buf[i - 2] = '\0';
opt.password = buf;
}
/*
* 1.1. Load the key
*/
printf( "\n . Loading the private key ..." );
fflush( stdout );
ret = x509parse_keyfile( &rsa, opt.filename, opt.password );
if( ret != 0 )
{
#ifdef POLARSSL_ERROR_C
error_strerror( ret, buf, 1024 );
#endif
printf( " failed\n ! x509parse_key returned %d - %s\n\n", ret, buf );
rsa_free( &rsa );
goto exit;
}
printf( " ok\n" );
/*
* 1.2 Print the key
*/
printf( " . Key information ...\n" );
mpi_write_file( "N: ", &rsa.N, 16, NULL );
mpi_write_file( "E: ", &rsa.E, 16, NULL );
mpi_write_file( "D: ", &rsa.D, 16, NULL );
mpi_write_file( "P: ", &rsa.P, 16, NULL );
mpi_write_file( "Q: ", &rsa.Q, 16, NULL );
mpi_write_file( "DP: ", &rsa.DP, 16, NULL );
mpi_write_file( "DQ: ", &rsa.DQ, 16, NULL );
mpi_write_file( "QP: ", &rsa.QP, 16, NULL );
}
else if( opt.mode == MODE_PUBLIC )
{
/*
* 1.1. Load the key
*/
printf( "\n . Loading the public key ..." );
fflush( stdout );
ret = x509parse_public_keyfile( &rsa, opt.filename );
if( ret != 0 )
{
#ifdef POLARSSL_ERROR_C
error_strerror( ret, buf, 1024 );
#endif
printf( " failed\n ! x509parse_public_key returned %d - %s\n\n", ret, buf );
rsa_free( &rsa );
goto exit;
}
printf( " ok\n" );
/*
* 1.2 Print the key
*/
printf( " . Key information ...\n" );
mpi_write_file( "N: ", &rsa.N, 16, NULL );
mpi_write_file( "E: ", &rsa.E, 16, NULL );
}
else
goto usage;
exit:
rsa_free( &rsa );
#if defined(_WIN32)
printf( " + Press Enter to exit this program.\n" );
fflush( stdout );
getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret = 0;
pk_context key;
char buf[1024];
int i;
char *p, *q;
/*
* Set to sane values
*/
pk_init( &key );
memset( buf, 0, sizeof( buf ) );
if( argc == 0 )
{
usage:
ret = 1;
polarssl_printf( USAGE );
goto exit;
}
opt.mode = DFL_MODE;
opt.filename = DFL_FILENAME;
opt.output_mode = DFL_OUTPUT_MODE;
opt.output_file = DFL_OUTPUT_FILENAME;
opt.output_format = DFL_OUTPUT_FORMAT;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "mode" ) == 0 )
{
if( strcmp( q, "private" ) == 0 )
opt.mode = MODE_PRIVATE;
else if( strcmp( q, "public" ) == 0 )
opt.mode = MODE_PUBLIC;
else
goto usage;
}
else if( strcmp( p, "output_mode" ) == 0 )
{
if( strcmp( q, "private" ) == 0 )
opt.output_mode = OUTPUT_MODE_PRIVATE;
else if( strcmp( q, "public" ) == 0 )
opt.output_mode = OUTPUT_MODE_PUBLIC;
else
goto usage;
}
else if( strcmp( p, "output_format" ) == 0 )
{
#if defined(POLARSSL_PEM_WRITE_C)
if( strcmp( q, "pem" ) == 0 )
opt.output_format = OUTPUT_FORMAT_PEM;
else
#endif
if( strcmp( q, "der" ) == 0 )
opt.output_format = OUTPUT_FORMAT_DER;
else
goto usage;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "output_file" ) == 0 )
opt.output_file = q;
else
goto usage;
}
if( opt.mode == MODE_NONE && opt.output_mode != OUTPUT_MODE_NONE )
{
polarssl_printf( "\nCannot output a key without reading one.\n");
goto exit;
}
if( opt.mode == MODE_PUBLIC && opt.output_mode == OUTPUT_MODE_PRIVATE )
{
polarssl_printf( "\nCannot output a private key from a public key.\n");
goto exit;
}
if( opt.mode == MODE_PRIVATE )
{
/*
* 1.1. Load the key
*/
polarssl_printf( "\n . Loading the private key ..." );
fflush( stdout );
ret = pk_parse_keyfile( &key, opt.filename, NULL );
if( ret != 0 )
{
polarssl_strerror( ret, (char *) buf, sizeof(buf) );
polarssl_printf( " failed\n ! pk_parse_keyfile returned -0x%04x - %s\n\n", -ret, buf );
goto exit;
}
polarssl_printf( " ok\n" );
/*
* 1.2 Print the key
*/
polarssl_printf( " . Key information ...\n" );
#if defined(POLARSSL_RSA_C)
if( pk_get_type( &key ) == POLARSSL_PK_RSA )
{
rsa_context *rsa = pk_rsa( key );
mpi_write_file( "N: ", &rsa->N, 16, NULL );
mpi_write_file( "E: ", &rsa->E, 16, NULL );
mpi_write_file( "D: ", &rsa->D, 16, NULL );
mpi_write_file( "P: ", &rsa->P, 16, NULL );
mpi_write_file( "Q: ", &rsa->Q, 16, NULL );
mpi_write_file( "DP: ", &rsa->DP, 16, NULL );
mpi_write_file( "DQ: ", &rsa->DQ, 16, NULL );
mpi_write_file( "QP: ", &rsa->QP, 16, NULL );
}
else
#endif
#if defined(POLARSSL_ECP_C)
if( pk_get_type( &key ) == POLARSSL_PK_ECKEY )
{
ecp_keypair *ecp = pk_ec( key );
mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL );
mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL );
mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL );
mpi_write_file( "D : ", &ecp->d , 16, NULL );
}
else
#endif
polarssl_printf("key type not supported yet\n");
}
else if( opt.mode == MODE_PUBLIC )
{
/*
* 1.1. Load the key
*/
polarssl_printf( "\n . Loading the public key ..." );
fflush( stdout );
ret = pk_parse_public_keyfile( &key, opt.filename );
if( ret != 0 )
{
polarssl_strerror( ret, (char *) buf, sizeof(buf) );
polarssl_printf( " failed\n ! pk_parse_public_key returned -0x%04x - %s\n\n", -ret, buf );
goto exit;
}
polarssl_printf( " ok\n" );
/*
* 1.2 Print the key
*/
polarssl_printf( " . Key information ...\n" );
#if defined(POLARSSL_RSA_C)
if( pk_get_type( &key ) == POLARSSL_PK_RSA )
{
rsa_context *rsa = pk_rsa( key );
mpi_write_file( "N: ", &rsa->N, 16, NULL );
mpi_write_file( "E: ", &rsa->E, 16, NULL );
}
else
#endif
#if defined(POLARSSL_ECP_C)
if( pk_get_type( &key ) == POLARSSL_PK_ECKEY )
{
ecp_keypair *ecp = pk_ec( key );
mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL );
mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL );
mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL );
}
else
#endif
polarssl_printf("key type not supported yet\n");
}
else
goto usage;
if( opt.output_mode == OUTPUT_MODE_PUBLIC )
{
write_public_key( &key, opt.output_file );
}
if( opt.output_mode == OUTPUT_MODE_PRIVATE )
{
write_private_key( &key, opt.output_file );
}
exit:
if( ret != 0 && ret != 1)
{
#ifdef POLARSSL_ERROR_C
polarssl_strerror( ret, buf, sizeof( buf ) );
polarssl_printf( " - %s\n", buf );
#else
polarssl_printf("\n");
#endif
}
pk_free( &key );
#if defined(_WIN32)
polarssl_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret = 0;
pk_context key;
char buf[1024];
int i;
char *p, *q;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
const char *pers = "gen_key";
#if defined(POLARSSL_ECP_C)
const ecp_curve_info *curve_info;
#endif
/*
* Set to sane values
*/
pk_init( &key );
memset( buf, 0, sizeof( buf ) );
if( argc == 0 )
{
usage:
ret = 1;
printf( USAGE );
#if defined(POLARSSL_ECP_C)
printf( " availabled ec_curve values:\n" );
curve_info = ecp_curve_list();
printf( " %s (default)\n", curve_info->name );
while( ( ++curve_info )->name != NULL )
printf( " %s\n", curve_info->name );
#endif
goto exit;
}
opt.type = DFL_TYPE;
opt.rsa_keysize = DFL_RSA_KEYSIZE;
opt.ec_curve = DFL_EC_CURVE;
opt.filename = DFL_FILENAME;
opt.format = DFL_FORMAT;
opt.use_dev_random = DFL_USE_DEV_RANDOM;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "type" ) == 0 )
{
if( strcmp( q, "rsa" ) == 0 )
opt.type = POLARSSL_PK_RSA;
else if( strcmp( q, "ec" ) == 0 )
opt.type = POLARSSL_PK_ECKEY;
else
goto usage;
}
else if( strcmp( p, "format" ) == 0 )
{
if( strcmp( q, "pem" ) == 0 )
opt.format = FORMAT_PEM;
else if( strcmp( q, "der" ) == 0 )
opt.format = FORMAT_DER;
else
goto usage;
}
else if( strcmp( p, "rsa_keysize" ) == 0 )
{
opt.rsa_keysize = atoi( q );
if( opt.rsa_keysize < 1024 || opt.rsa_keysize > 8192 )
goto usage;
}
else if( strcmp( p, "ec_curve" ) == 0 )
{
if( ( curve_info = ecp_curve_info_from_name( q ) ) == NULL )
goto usage;
opt.ec_curve = curve_info->grp_id;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "use_dev_random" ) == 0 )
{
opt.use_dev_random = atoi( q );
if( opt.use_dev_random < 0 || opt.use_dev_random > 1 )
goto usage;
}
else
goto usage;
}
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
#if !defined(_WIN32) && defined(POLARSSL_FS_IO)
if( opt.use_dev_random )
{
if( ( ret = entropy_add_source( &entropy, dev_random_entropy_poll,
NULL, DEV_RANDOM_THRESHOLD ) ) != 0 )
{
printf( " failed\n ! entropy_add_source returned -0x%04x\n", -ret );
goto exit;
}
printf("\n Using /dev/random, so can take a long time! " );
fflush( stdout );
}
#endif /* !_WIN32 && POLARSSL_FS_IO */
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned -0x%04x\n", -ret );
goto exit;
}
/*
* 1.1. Generate the key
*/
printf( "\n . Generating the private key ..." );
fflush( stdout );
if( ( ret = pk_init_ctx( &key, pk_info_from_type( opt.type ) ) ) != 0 )
{
printf( " failed\n ! pk_init_ctx returned -0x%04x", -ret );
goto exit;
}
#if defined(POLARSSL_RSA_C) && defined(POLARSSL_GENPRIME)
if( opt.type == POLARSSL_PK_RSA )
{
ret = rsa_gen_key( pk_rsa( key ), ctr_drbg_random, &ctr_drbg,
opt.rsa_keysize, 65537 );
if( ret != 0 )
{
printf( " failed\n ! rsa_gen_key returned -0x%04x", -ret );
goto exit;
}
}
else
#endif /* POLARSSL_RSA_C */
#if defined(POLARSSL_ECP_C)
if( opt.type == POLARSSL_PK_ECKEY )
{
ret = ecp_gen_key( opt.ec_curve, pk_ec( key ),
ctr_drbg_random, &ctr_drbg );
if( ret != 0 )
{
printf( " failed\n ! rsa_gen_key returned -0x%04x", -ret );
goto exit;
}
}
else
#endif /* POLARSSL_ECP_C */
{
printf( " failed\n ! key type not supported\n" );
goto exit;
}
/*
* 1.2 Print the key
*/
printf( " ok\n . Key information:\n" );
#if defined(POLARSSL_RSA_C)
if( pk_get_type( &key ) == POLARSSL_PK_RSA )
{
rsa_context *rsa = pk_rsa( key );
mpi_write_file( "N: ", &rsa->N, 16, NULL );
mpi_write_file( "E: ", &rsa->E, 16, NULL );
mpi_write_file( "D: ", &rsa->D, 16, NULL );
mpi_write_file( "P: ", &rsa->P, 16, NULL );
mpi_write_file( "Q: ", &rsa->Q, 16, NULL );
mpi_write_file( "DP: ", &rsa->DP, 16, NULL );
mpi_write_file( "DQ: ", &rsa->DQ, 16, NULL );
mpi_write_file( "QP: ", &rsa->QP, 16, NULL );
}
else
#endif
#if defined(POLARSSL_ECP_C)
if( pk_get_type( &key ) == POLARSSL_PK_ECKEY )
{
ecp_keypair *ecp = pk_ec( key );
printf( "curve: %s\n",
ecp_curve_info_from_grp_id( ecp->grp.id )->name );
mpi_write_file( "X_Q: ", &ecp->Q.X, 16, NULL );
mpi_write_file( "Y_Q: ", &ecp->Q.Y, 16, NULL );
mpi_write_file( "D: ", &ecp->d , 16, NULL );
}
else
#endif
printf(" ! key type not supported\n");
write_private_key( &key, opt.filename );
exit:
if( ret != 0 && ret != 1)
{
#ifdef POLARSSL_ERROR_C
polarssl_strerror( ret, buf, sizeof( buf ) );
printf( " - %s\n", buf );
#else
printf("\n");
#endif
}
pk_free( &key );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( void )
{
int ret;
mpi E, P, Q, N, H, D, X, Y, Z;
mpi_init( &E ); mpi_init( &P ); mpi_init( &Q ); mpi_init( &N );
mpi_init( &H ); mpi_init( &D ); mpi_init( &X ); mpi_init( &Y );
mpi_init( &Z );
MPI_CHK( mpi_read_string( &P, 10, "2789" ) );
MPI_CHK( mpi_read_string( &Q, 10, "3203" ) );
MPI_CHK( mpi_read_string( &E, 10, "257" ) );
MPI_CHK( mpi_mul_mpi( &N, &P, &Q ) );
polarssl_printf( "\n Public key:\n\n" );
MPI_CHK( mpi_write_file( " N = ", &N, 10, NULL ) );
MPI_CHK( mpi_write_file( " E = ", &E, 10, NULL ) );
polarssl_printf( "\n Private key:\n\n" );
MPI_CHK( mpi_write_file( " P = ", &P, 10, NULL ) );
MPI_CHK( mpi_write_file( " Q = ", &Q, 10, NULL ) );
#if defined(POLARSSL_GENPRIME)
MPI_CHK( mpi_sub_int( &P, &P, 1 ) );
MPI_CHK( mpi_sub_int( &Q, &Q, 1 ) );
MPI_CHK( mpi_mul_mpi( &H, &P, &Q ) );
MPI_CHK( mpi_inv_mod( &D, &E, &H ) );
mpi_write_file( " D = E^-1 mod (P-1)*(Q-1) = ",
&D, 10, NULL );
#else
polarssl_printf("\nTest skipped (POLARSSL_GENPRIME not defined).\n\n");
#endif
MPI_CHK( mpi_read_string( &X, 10, "55555" ) );
MPI_CHK( mpi_exp_mod( &Y, &X, &E, &N, NULL ) );
MPI_CHK( mpi_exp_mod( &Z, &Y, &D, &N, NULL ) );
polarssl_printf( "\n RSA operation:\n\n" );
MPI_CHK( mpi_write_file( " X (plaintext) = ", &X, 10, NULL ) );
MPI_CHK( mpi_write_file( " Y (ciphertext) = X^E mod N = ", &Y, 10, NULL ) );
MPI_CHK( mpi_write_file( " Z (decrypted) = Y^D mod N = ", &Z, 10, NULL ) );
polarssl_printf( "\n" );
cleanup:
mpi_free( &E ); mpi_free( &P ); mpi_free( &Q ); mpi_free( &N );
mpi_free( &H ); mpi_free( &D ); mpi_free( &X ); mpi_free( &Y );
mpi_free( &Z );
if( ret != 0 )
{
polarssl_printf( "\nAn error occurred.\n" );
ret = 1;
}
#if defined(_WIN32)
polarssl_printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( void )
{
int ret = 1;
#if defined(XYSSL_GENPRIME)
mpi G, P, Q;
havege_state hs;
FILE *fout;
mpi_init( &G, &P, &Q, NULL );
mpi_read_string( &G, 10, GENERATOR );
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
havege_init( &hs );
printf( " ok\n . Generating the modulus, please wait..." );
fflush( stdout );
/*
* This can take a long time...
*/
if( ( ret = mpi_gen_prime( &P, DH_P_SIZE, 1,
havege_rand, &hs ) ) != 0 )
{
printf( " failed\n ! mpi_gen_prime returned %d\n\n", ret );
goto exit;
}
printf( " ok\n . Verifying that Q = (P-1)/2 is prime..." );
fflush( stdout );
if( ( ret = mpi_sub_int( &Q, &P, 1 ) ) != 0 )
{
printf( " failed\n ! mpi_sub_int returned %d\n\n", ret );
goto exit;
}
if( ( ret = mpi_div_int( &Q, NULL, &Q, 2 ) ) != 0 )
{
printf( " failed\n ! mpi_div_int returned %d\n\n", ret );
goto exit;
}
if( ( ret = mpi_is_prime( &Q, havege_rand, &hs ) ) != 0 )
{
printf( " failed\n ! mpi_is_prime returned %d\n\n", ret );
goto exit;
}
printf( " ok\n . Exporting the value in dh_prime.txt..." );
fflush( stdout );
if( ( fout = fopen( "dh_prime.txt", "wb+" ) ) == NULL )
{
ret = 1;
printf( " failed\n ! Could not create dh_prime.txt\n\n" );
goto exit;
}
if( ( ret = mpi_write_file( "P = ", &P, 16, fout ) != 0 ) ||
( ret = mpi_write_file( "G = ", &G, 16, fout ) != 0 ) )
{
printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
printf( " ok\n\n" );
fclose( fout );
exit:
mpi_free( &Q, &P, &G, NULL );
#else
printf( "\n ! Prime-number generation is not available.\n\n" );
#endif
#ifdef WIN32
printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}