diff options
Diffstat (limited to 'thirdparty/mbedtls/library/blowfish.c')
| -rw-r--r-- | thirdparty/mbedtls/library/blowfish.c | 58 |
1 files changed, 51 insertions, 7 deletions
diff --git a/thirdparty/mbedtls/library/blowfish.c b/thirdparty/mbedtls/library/blowfish.c index 5b6bb9885f..cbf9238246 100644 --- a/thirdparty/mbedtls/library/blowfish.c +++ b/thirdparty/mbedtls/library/blowfish.c @@ -40,6 +40,12 @@ #if !defined(MBEDTLS_BLOWFISH_ALT) +/* Parameter validation macros */ +#define BLOWFISH_VALIDATE_RET( cond ) \ + MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA ) +#define BLOWFISH_VALIDATE( cond ) \ + MBEDTLS_INTERNAL_VALIDATE( cond ) + /* * 32-bit integer manipulation macros (big endian) */ @@ -153,6 +159,7 @@ static void blowfish_dec( mbedtls_blowfish_context *ctx, uint32_t *xl, uint32_t void mbedtls_blowfish_init( mbedtls_blowfish_context *ctx ) { + BLOWFISH_VALIDATE( ctx != NULL ); memset( ctx, 0, sizeof( mbedtls_blowfish_context ) ); } @@ -167,16 +174,20 @@ void mbedtls_blowfish_free( mbedtls_blowfish_context *ctx ) /* * Blowfish key schedule */ -int mbedtls_blowfish_setkey( mbedtls_blowfish_context *ctx, const unsigned char *key, - unsigned int keybits ) +int mbedtls_blowfish_setkey( mbedtls_blowfish_context *ctx, + const unsigned char *key, + unsigned int keybits ) { unsigned int i, j, k; uint32_t data, datal, datar; + BLOWFISH_VALIDATE_RET( ctx != NULL ); + BLOWFISH_VALIDATE_RET( key != NULL ); - if( keybits < MBEDTLS_BLOWFISH_MIN_KEY_BITS || keybits > MBEDTLS_BLOWFISH_MAX_KEY_BITS || - ( keybits % 8 ) ) + if( keybits < MBEDTLS_BLOWFISH_MIN_KEY_BITS || + keybits > MBEDTLS_BLOWFISH_MAX_KEY_BITS || + keybits % 8 != 0 ) { - return( MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH ); + return( MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA ); } keybits >>= 3; @@ -231,6 +242,11 @@ int mbedtls_blowfish_crypt_ecb( mbedtls_blowfish_context *ctx, unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE] ) { uint32_t X0, X1; + BLOWFISH_VALIDATE_RET( ctx != NULL ); + BLOWFISH_VALIDATE_RET( mode == MBEDTLS_BLOWFISH_ENCRYPT || + mode == MBEDTLS_BLOWFISH_DECRYPT ); + BLOWFISH_VALIDATE_RET( input != NULL ); + BLOWFISH_VALIDATE_RET( output != NULL ); GET_UINT32_BE( X0, input, 0 ); GET_UINT32_BE( X1, input, 4 ); @@ -263,6 +279,12 @@ int mbedtls_blowfish_crypt_cbc( mbedtls_blowfish_context *ctx, { int i; unsigned char temp[MBEDTLS_BLOWFISH_BLOCKSIZE]; + BLOWFISH_VALIDATE_RET( ctx != NULL ); + BLOWFISH_VALIDATE_RET( mode == MBEDTLS_BLOWFISH_ENCRYPT || + mode == MBEDTLS_BLOWFISH_DECRYPT ); + BLOWFISH_VALIDATE_RET( iv != NULL ); + BLOWFISH_VALIDATE_RET( length == 0 || input != NULL ); + BLOWFISH_VALIDATE_RET( length == 0 || output != NULL ); if( length % MBEDTLS_BLOWFISH_BLOCKSIZE ) return( MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH ); @@ -317,7 +339,19 @@ int mbedtls_blowfish_crypt_cfb64( mbedtls_blowfish_context *ctx, unsigned char *output ) { int c; - size_t n = *iv_off; + size_t n; + + BLOWFISH_VALIDATE_RET( ctx != NULL ); + BLOWFISH_VALIDATE_RET( mode == MBEDTLS_BLOWFISH_ENCRYPT || + mode == MBEDTLS_BLOWFISH_DECRYPT ); + BLOWFISH_VALIDATE_RET( iv != NULL ); + BLOWFISH_VALIDATE_RET( iv_off != NULL ); + BLOWFISH_VALIDATE_RET( length == 0 || input != NULL ); + BLOWFISH_VALIDATE_RET( length == 0 || output != NULL ); + + n = *iv_off; + if( n >= 8 ) + return( MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA ); if( mode == MBEDTLS_BLOWFISH_DECRYPT ) { @@ -365,7 +399,17 @@ int mbedtls_blowfish_crypt_ctr( mbedtls_blowfish_context *ctx, unsigned char *output ) { int c, i; - size_t n = *nc_off; + size_t n; + BLOWFISH_VALIDATE_RET( ctx != NULL ); + BLOWFISH_VALIDATE_RET( nonce_counter != NULL ); + BLOWFISH_VALIDATE_RET( stream_block != NULL ); + BLOWFISH_VALIDATE_RET( nc_off != NULL ); + BLOWFISH_VALIDATE_RET( length == 0 || input != NULL ); + BLOWFISH_VALIDATE_RET( length == 0 || output != NULL ); + + n = *nc_off; + if( n >= 8 ) + return( MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA ); while( length-- ) { |