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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2023-01-11 14:50:10 +01:00
parent fd13a0f851
commit 449bd8303e
442 changed files with 86735 additions and 89438 deletions
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153
programs/pkey/ecdsa.c
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@@ -47,46 +47,46 @@
#if !defined(MBEDTLS_ECDSA_C) || !defined(MBEDTLS_SHA256_C) || \
!defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C)
int main( void )
int main(void)
{
mbedtls_printf("MBEDTLS_ECDSA_C and/or MBEDTLS_SHA256_C and/or "
"MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C not defined\n");
mbedtls_exit( 0 );
"MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C not defined\n");
mbedtls_exit(0);
}
#else
#if defined(VERBOSE)
static void dump_buf( const char *title, unsigned char *buf, size_t len )
static void dump_buf(const char *title, unsigned char *buf, size_t len)
{
size_t i;
mbedtls_printf( "%s", title );
for( i = 0; i < len; i++ )
mbedtls_printf("%s", title);
for (i = 0; i < len; i++) {
mbedtls_printf("%c%c", "0123456789ABCDEF" [buf[i] / 16],
"0123456789ABCDEF" [buf[i] % 16] );
mbedtls_printf( "\n" );
"0123456789ABCDEF" [buf[i] % 16]);
}
mbedtls_printf("\n");
}
static void dump_pubkey( const char *title, mbedtls_ecdsa_context *key )
static void dump_pubkey(const char *title, mbedtls_ecdsa_context *key)
{
unsigned char buf[300];
size_t len;
if( mbedtls_ecp_point_write_binary( &key->MBEDTLS_PRIVATE(grp), &key->MBEDTLS_PRIVATE(Q),
MBEDTLS_ECP_PF_UNCOMPRESSED, &len, buf, sizeof buf ) != 0 )
{
if (mbedtls_ecp_point_write_binary(&key->MBEDTLS_PRIVATE(grp), &key->MBEDTLS_PRIVATE(Q),
MBEDTLS_ECP_PF_UNCOMPRESSED, &len, buf, sizeof buf) != 0) {
mbedtls_printf("internal error\n");
return;
}
dump_buf( title, buf, len );
dump_buf(title, buf, len);
}
#else
#define dump_buf( a, b, c )
#define dump_pubkey( a, b )
#define dump_buf(a, b, c)
#define dump_pubkey(a, b)
#endif
int main( int argc, char *argv[] )
int main(int argc, char *argv[])
{
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
@@ -100,19 +100,18 @@ int main( int argc, char *argv[] )
const char *pers = "ecdsa";
((void) argv);
mbedtls_ecdsa_init( &ctx_sign );
mbedtls_ecdsa_init( &ctx_verify );
mbedtls_ctr_drbg_init( &ctr_drbg );
mbedtls_ecdsa_init(&ctx_sign);
mbedtls_ecdsa_init(&ctx_verify);
mbedtls_ctr_drbg_init(&ctr_drbg);
memset( sig, 0, sizeof( sig ) );
memset( message, 0x25, sizeof( message ) );
memset(sig, 0, sizeof(sig));
memset(message, 0x25, sizeof(message));
if( argc != 1 )
{
mbedtls_printf( "usage: ecdsa\n" );
if (argc != 1) {
mbedtls_printf("usage: ecdsa\n");
#if defined(_WIN32)
mbedtls_printf( "\n" );
mbedtls_printf("\n");
#endif
goto exit;
@@ -121,65 +120,61 @@ int main( int argc, char *argv[] )
/*
* Generate a key pair for signing
*/
mbedtls_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
mbedtls_printf("\n . Seeding the random number generator...");
fflush(stdout);
mbedtls_entropy_init( &entropy );
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret );
mbedtls_entropy_init(&entropy);
if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
strlen(pers))) != 0) {
mbedtls_printf(" failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret);
goto exit;
}
mbedtls_printf( " ok\n . Generating key pair..." );
fflush( stdout );
mbedtls_printf(" ok\n . Generating key pair...");
fflush(stdout);
if( ( ret = mbedtls_ecdsa_genkey( &ctx_sign, ECPARAMS,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdsa_genkey returned %d\n", ret );
if ((ret = mbedtls_ecdsa_genkey(&ctx_sign, ECPARAMS,
mbedtls_ctr_drbg_random, &ctr_drbg)) != 0) {
mbedtls_printf(" failed\n ! mbedtls_ecdsa_genkey returned %d\n", ret);
goto exit;
}
mbedtls_printf( " ok (key size: %d bits)\n", (int) ctx_sign.MBEDTLS_PRIVATE(grp).pbits );
mbedtls_printf(" ok (key size: %d bits)\n", (int) ctx_sign.MBEDTLS_PRIVATE(grp).pbits);
dump_pubkey( " + Public key: ", &ctx_sign );
dump_pubkey(" + Public key: ", &ctx_sign);
/*
* Compute message hash
*/
mbedtls_printf( " . Computing message hash..." );
fflush( stdout );
mbedtls_printf(" . Computing message hash...");
fflush(stdout);
if( ( ret = mbedtls_sha256( message, sizeof( message ), hash, 0 ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_sha256 returned %d\n", ret );
if ((ret = mbedtls_sha256(message, sizeof(message), hash, 0)) != 0) {
mbedtls_printf(" failed\n ! mbedtls_sha256 returned %d\n", ret);
goto exit;
}
mbedtls_printf( " ok\n" );
mbedtls_printf(" ok\n");
dump_buf( " + Hash: ", hash, sizeof( hash ) );
dump_buf(" + Hash: ", hash, sizeof(hash));
/*
* Sign message hash
*/
mbedtls_printf( " . Signing message hash..." );
fflush( stdout );
mbedtls_printf(" . Signing message hash...");
fflush(stdout);
if( ( ret = mbedtls_ecdsa_write_signature( &ctx_sign, MBEDTLS_MD_SHA256,
hash, sizeof( hash ),
sig, sizeof( sig ), &sig_len,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdsa_write_signature returned %d\n", ret );
if ((ret = mbedtls_ecdsa_write_signature(&ctx_sign, MBEDTLS_MD_SHA256,
hash, sizeof(hash),
sig, sizeof(sig), &sig_len,
mbedtls_ctr_drbg_random, &ctr_drbg)) != 0) {
mbedtls_printf(" failed\n ! mbedtls_ecdsa_write_signature returned %d\n", ret);
goto exit;
}
mbedtls_printf( " ok (signature length = %u)\n", (unsigned int) sig_len );
mbedtls_printf(" ok (signature length = %u)\n", (unsigned int) sig_len);
dump_buf( " + Signature: ", sig, sig_len );
dump_buf(" + Signature: ", sig, sig_len);
/*
* Transfer public information to verifying context
@@ -188,47 +183,47 @@ int main( int argc, char *argv[] )
* 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).
*/
mbedtls_printf( " . Preparing verification context..." );
fflush( stdout );
mbedtls_printf(" . Preparing verification context...");
fflush(stdout);
if( ( ret = mbedtls_ecp_group_copy( &ctx_verify.MBEDTLS_PRIVATE(grp), &ctx_sign.MBEDTLS_PRIVATE(grp) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecp_group_copy returned %d\n", ret );
if ((ret =
mbedtls_ecp_group_copy(&ctx_verify.MBEDTLS_PRIVATE(grp),
&ctx_sign.MBEDTLS_PRIVATE(grp))) != 0) {
mbedtls_printf(" failed\n ! mbedtls_ecp_group_copy returned %d\n", ret);
goto exit;
}
if( ( ret = mbedtls_ecp_copy( &ctx_verify.MBEDTLS_PRIVATE(Q), &ctx_sign.MBEDTLS_PRIVATE(Q) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecp_copy returned %d\n", ret );
if ((ret =
mbedtls_ecp_copy(&ctx_verify.MBEDTLS_PRIVATE(Q), &ctx_sign.MBEDTLS_PRIVATE(Q))) != 0) {
mbedtls_printf(" failed\n ! mbedtls_ecp_copy returned %d\n", ret);
goto exit;
}
/*
* Verify signature
*/
mbedtls_printf( " ok\n . Verifying signature..." );
fflush( stdout );
mbedtls_printf(" ok\n . Verifying signature...");
fflush(stdout);
if( ( ret = mbedtls_ecdsa_read_signature( &ctx_verify,
hash, sizeof( hash ),
sig, sig_len ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdsa_read_signature returned %d\n", ret );
if ((ret = mbedtls_ecdsa_read_signature(&ctx_verify,
hash, sizeof(hash),
sig, sig_len)) != 0) {
mbedtls_printf(" failed\n ! mbedtls_ecdsa_read_signature returned %d\n", ret);
goto exit;
}
mbedtls_printf( " ok\n" );
mbedtls_printf(" ok\n");
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
mbedtls_ecdsa_free( &ctx_verify );
mbedtls_ecdsa_free( &ctx_sign );
mbedtls_ctr_drbg_free( &ctr_drbg );
mbedtls_entropy_free( &entropy );
mbedtls_ecdsa_free(&ctx_verify);
mbedtls_ecdsa_free(&ctx_sign);
mbedtls_ctr_drbg_free(&ctr_drbg);
mbedtls_entropy_free(&entropy);
mbedtls_exit( exit_code );
mbedtls_exit(exit_code);
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C &&
ECPARAMS */