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Diffstat (limited to 'thirdparty/mbedtls/library/xtea.c')
-rw-r--r--thirdparty/mbedtls/library/xtea.c157
1 files changed, 76 insertions, 81 deletions
diff --git a/thirdparty/mbedtls/library/xtea.c b/thirdparty/mbedtls/library/xtea.c
index 28e6972aa8..27651cc0e5 100644
--- a/thirdparty/mbedtls/library/xtea.c
+++ b/thirdparty/mbedtls/library/xtea.c
@@ -30,116 +30,109 @@
#if !defined(MBEDTLS_XTEA_ALT)
-void mbedtls_xtea_init( mbedtls_xtea_context *ctx )
+void mbedtls_xtea_init(mbedtls_xtea_context *ctx)
{
- memset( ctx, 0, sizeof( mbedtls_xtea_context ) );
+ memset(ctx, 0, sizeof(mbedtls_xtea_context));
}
-void mbedtls_xtea_free( mbedtls_xtea_context *ctx )
+void mbedtls_xtea_free(mbedtls_xtea_context *ctx)
{
- if( ctx == NULL )
+ if (ctx == NULL) {
return;
+ }
- mbedtls_platform_zeroize( ctx, sizeof( mbedtls_xtea_context ) );
+ mbedtls_platform_zeroize(ctx, sizeof(mbedtls_xtea_context));
}
/*
* XTEA key schedule
*/
-void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] )
+void mbedtls_xtea_setup(mbedtls_xtea_context *ctx, const unsigned char key[16])
{
int i;
- memset( ctx, 0, sizeof(mbedtls_xtea_context) );
+ memset(ctx, 0, sizeof(mbedtls_xtea_context));
- for( i = 0; i < 4; i++ )
- {
- ctx->k[i] = MBEDTLS_GET_UINT32_BE( key, i << 2 );
+ for (i = 0; i < 4; i++) {
+ ctx->k[i] = MBEDTLS_GET_UINT32_BE(key, i << 2);
}
}
/*
* XTEA encrypt function
*/
-int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx, int mode,
- const unsigned char input[8], unsigned char output[8])
+int mbedtls_xtea_crypt_ecb(mbedtls_xtea_context *ctx, int mode,
+ const unsigned char input[8], unsigned char output[8])
{
uint32_t *k, v0, v1, i;
k = ctx->k;
- v0 = MBEDTLS_GET_UINT32_BE( input, 0 );
- v1 = MBEDTLS_GET_UINT32_BE( input, 4 );
+ v0 = MBEDTLS_GET_UINT32_BE(input, 0);
+ v1 = MBEDTLS_GET_UINT32_BE(input, 4);
- if( mode == MBEDTLS_XTEA_ENCRYPT )
- {
+ if (mode == MBEDTLS_XTEA_ENCRYPT) {
uint32_t sum = 0, delta = 0x9E3779B9;
- for( i = 0; i < 32; i++ )
- {
+ for (i = 0; i < 32; i++) {
v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
sum += delta;
v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
}
- }
- else /* MBEDTLS_XTEA_DECRYPT */
- {
+ } else { /* MBEDTLS_XTEA_DECRYPT */
uint32_t delta = 0x9E3779B9, sum = delta * 32;
- for( i = 0; i < 32; i++ )
- {
+ for (i = 0; i < 32; i++) {
v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
sum -= delta;
v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
}
}
- MBEDTLS_PUT_UINT32_BE( v0, output, 0 );
- MBEDTLS_PUT_UINT32_BE( v1, output, 4 );
+ MBEDTLS_PUT_UINT32_BE(v0, output, 0);
+ MBEDTLS_PUT_UINT32_BE(v1, output, 4);
- return( 0 );
+ return 0;
}
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* XTEA-CBC buffer encryption/decryption
*/
-int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx, int mode, size_t length,
- unsigned char iv[8], const unsigned char *input,
- unsigned char *output)
+int mbedtls_xtea_crypt_cbc(mbedtls_xtea_context *ctx, int mode, size_t length,
+ unsigned char iv[8], const unsigned char *input,
+ unsigned char *output)
{
int i;
unsigned char temp[8];
- if( length % 8 )
- return( MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH );
+ if (length % 8) {
+ return MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH;
+ }
- if( mode == MBEDTLS_XTEA_DECRYPT )
- {
- while( length > 0 )
- {
- memcpy( temp, input, 8 );
- mbedtls_xtea_crypt_ecb( ctx, mode, input, output );
+ if (mode == MBEDTLS_XTEA_DECRYPT) {
+ while (length > 0) {
+ memcpy(temp, input, 8);
+ mbedtls_xtea_crypt_ecb(ctx, mode, input, output);
- for( i = 0; i < 8; i++ )
- output[i] = (unsigned char)( output[i] ^ iv[i] );
+ for (i = 0; i < 8; i++) {
+ output[i] = (unsigned char) (output[i] ^ iv[i]);
+ }
- memcpy( iv, temp, 8 );
+ memcpy(iv, temp, 8);
input += 8;
output += 8;
length -= 8;
}
- }
- else
- {
- while( length > 0 )
- {
- for( i = 0; i < 8; i++ )
- output[i] = (unsigned char)( input[i] ^ iv[i] );
+ } else {
+ while (length > 0) {
+ for (i = 0; i < 8; i++) {
+ output[i] = (unsigned char) (input[i] ^ iv[i]);
+ }
- mbedtls_xtea_crypt_ecb( ctx, mode, output, output );
- memcpy( iv, output, 8 );
+ mbedtls_xtea_crypt_ecb(ctx, mode, output, output);
+ memcpy(iv, output, 8);
input += 8;
output += 8;
@@ -147,7 +140,7 @@ int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx, int mode, size_t length,
}
}
- return( 0 );
+ return 0;
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* !MBEDTLS_XTEA_ALT */
@@ -160,18 +153,18 @@ int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx, int mode, size_t length,
static const unsigned char xtea_test_key[6][16] =
{
- { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
- 0x0c, 0x0d, 0x0e, 0x0f },
- { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
- 0x0c, 0x0d, 0x0e, 0x0f },
- { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
- 0x0c, 0x0d, 0x0e, 0x0f },
- { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00 },
- { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00 },
- { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00 }
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+ 0x0c, 0x0d, 0x0e, 0x0f },
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+ 0x0c, 0x0d, 0x0e, 0x0f },
+ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+ 0x0c, 0x0d, 0x0e, 0x0f },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00 },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00 },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00 }
};
static const unsigned char xtea_test_pt[6][8] =
@@ -197,43 +190,45 @@ static const unsigned char xtea_test_ct[6][8] =
/*
* Checkup routine
*/
-int mbedtls_xtea_self_test( int verbose )
+int mbedtls_xtea_self_test(int verbose)
{
int i, ret = 0;
unsigned char buf[8];
mbedtls_xtea_context ctx;
- mbedtls_xtea_init( &ctx );
- for( i = 0; i < 6; i++ )
- {
- if( verbose != 0 )
- mbedtls_printf( " XTEA test #%d: ", i + 1 );
+ mbedtls_xtea_init(&ctx);
+ for (i = 0; i < 6; i++) {
+ if (verbose != 0) {
+ mbedtls_printf(" XTEA test #%d: ", i + 1);
+ }
- memcpy( buf, xtea_test_pt[i], 8 );
+ memcpy(buf, xtea_test_pt[i], 8);
- mbedtls_xtea_setup( &ctx, xtea_test_key[i] );
- mbedtls_xtea_crypt_ecb( &ctx, MBEDTLS_XTEA_ENCRYPT, buf, buf );
+ mbedtls_xtea_setup(&ctx, xtea_test_key[i]);
+ mbedtls_xtea_crypt_ecb(&ctx, MBEDTLS_XTEA_ENCRYPT, buf, buf);
- if( memcmp( buf, xtea_test_ct[i], 8 ) != 0 )
- {
- if( verbose != 0 )
- mbedtls_printf( "failed\n" );
+ if (memcmp(buf, xtea_test_ct[i], 8) != 0) {
+ if (verbose != 0) {
+ mbedtls_printf("failed\n");
+ }
ret = 1;
goto exit;
}
- if( verbose != 0 )
- mbedtls_printf( "passed\n" );
+ if (verbose != 0) {
+ mbedtls_printf("passed\n");
+ }
}
- if( verbose != 0 )
- mbedtls_printf( "\n" );
+ if (verbose != 0) {
+ mbedtls_printf("\n");
+ }
exit:
- mbedtls_xtea_free( &ctx );
+ mbedtls_xtea_free(&ctx);
- return( ret );
+ return ret;
}
#endif /* MBEDTLS_SELF_TEST */
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-10 00:25:28 +0000