mirror of
https://github.com/BLAKE2/BLAKE2
synced 2024-11-08 14:59:19 +01:00
Check for overflow of outlen in blake2{s,b}_final
Fix warnings with -Wcast-qual Fix blake2{sp,bp}_final's return value
This commit is contained in:
parent
77ede9e4db
commit
b8024d53e7
@ -19,9 +19,11 @@
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static inline uint32_t load32( const void *src )
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{
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#if defined(NATIVE_LITTLE_ENDIAN)
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return *( uint32_t * )( src );
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uint32_t w;
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memcpy(&w, src, sizeof w);
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return w;
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#else
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const uint8_t *p = ( uint8_t * )src;
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const uint8_t *p = ( const uint8_t * )src;
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uint32_t w = *p++;
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w |= ( uint32_t )( *p++ ) << 8;
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w |= ( uint32_t )( *p++ ) << 16;
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@ -33,9 +35,11 @@ static inline uint32_t load32( const void *src )
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static inline uint64_t load64( const void *src )
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{
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#if defined(NATIVE_LITTLE_ENDIAN)
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return *( uint64_t * )( src );
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uint64_t w;
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memcpy(&w, src, sizeof w);
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return w;
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#else
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const uint8_t *p = ( uint8_t * )src;
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const uint8_t *p = ( const uint8_t * )src;
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uint64_t w = *p++;
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w |= ( uint64_t )( *p++ ) << 8;
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w |= ( uint64_t )( *p++ ) << 16;
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@ -51,7 +55,7 @@ static inline uint64_t load64( const void *src )
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static inline void store32( void *dst, uint32_t w )
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{
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#if defined(NATIVE_LITTLE_ENDIAN)
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*( uint32_t * )( dst ) = w;
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memcpy(dst, &w, sizeof w);
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#else
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uint8_t *p = ( uint8_t * )dst;
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*p++ = ( uint8_t )w; w >>= 8;
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@ -64,7 +68,7 @@ static inline void store32( void *dst, uint32_t w )
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static inline void store64( void *dst, uint64_t w )
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{
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#if defined(NATIVE_LITTLE_ENDIAN)
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*( uint64_t * )( dst ) = w;
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memcpy(dst, &w, sizeof w);
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#else
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uint8_t *p = ( uint8_t * )dst;
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*p++ = ( uint8_t )w; w >>= 8;
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@ -125,7 +129,6 @@ static inline uint64_t rotr64( const uint64_t w, const unsigned c )
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static inline void secure_zero_memory( void *v, size_t n )
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{
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volatile uint8_t *p = ( volatile uint8_t * )v;
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while( n-- ) *p++ = 0;
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}
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@ -149,7 +149,7 @@ static inline int blake2b_init0( blake2b_state *S )
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int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
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{
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blake2b_init0( S );
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uint8_t *p = ( uint8_t * )( P );
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const uint8_t *p = ( const uint8_t * )( P );
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/* IV XOR ParamBlock */
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for( size_t i = 0; i < 8; ++i )
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@ -310,7 +310,10 @@ int blake2b_update( blake2b_state *S, const uint8_t *in, uint64_t inlen )
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/* Is this correct? */
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int blake2b_final( blake2b_state *S, uint8_t *out, uint8_t outlen )
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{
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uint8_t buffer[BLAKE2B_OUTBYTES];
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uint8_t buffer[BLAKE2B_OUTBYTES] = {0};
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if( outlen > BLAKE2B_OUTBYTES )
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return -1;
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if( S->buflen > BLAKE2B_BLOCKBYTES )
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{
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@ -353,7 +356,7 @@ int blake2b( uint8_t *out, const void *in, const void *key, const uint8_t outlen
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if( blake2b_init( S, outlen ) < 0 ) return -1;
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}
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blake2b_update( S, ( uint8_t * )in, inlen );
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blake2b_update( S, ( const uint8_t * )in, inlen );
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blake2b_final( S, out, outlen );
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return 0;
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}
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@ -179,8 +179,8 @@ int blake2bp_final( blake2bp_state *S, uint8_t *out, const uint8_t outlen )
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for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
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blake2b_update( S->R, hash[i], BLAKE2B_OUTBYTES );
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blake2b_final( S->R, out, outlen );
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return 0;
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return blake2b_final( S->R, out, outlen );
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}
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int blake2bp( uint8_t *out, const void *in, const void *key, uint8_t outlen, uint64_t inlen, uint8_t keylen )
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@ -252,8 +252,7 @@ int blake2bp( uint8_t *out, const void *in, const void *key, uint8_t outlen, uin
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for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
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blake2b_update( FS, hash[i], BLAKE2B_OUTBYTES );
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blake2b_final( FS, out, outlen );
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return 0;
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return blake2b_final( FS, out, outlen );;
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}
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#if defined(BLAKE2BP_SELFTEST)
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@ -142,7 +142,7 @@ static inline int blake2s_init0( blake2s_state *S )
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int blake2s_init_param( blake2s_state *S, const blake2s_param *P )
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{
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blake2s_init0( S );
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uint32_t *p = ( uint32_t * )( P );
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const uint32_t *p = ( const uint32_t * )( P );
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/* IV XOR ParamBlock */
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for( size_t i = 0; i < 8; ++i )
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@ -299,7 +299,10 @@ int blake2s_update( blake2s_state *S, const uint8_t *in, uint64_t inlen )
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int blake2s_final( blake2s_state *S, uint8_t *out, uint8_t outlen )
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{
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uint8_t buffer[BLAKE2S_OUTBYTES];
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uint8_t buffer[BLAKE2S_OUTBYTES] = {0};
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if( outlen > BLAKE2S_OUTBYTES )
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return -1;
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if( S->buflen > BLAKE2S_BLOCKBYTES )
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{
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@ -316,7 +319,7 @@ int blake2s_final( blake2s_state *S, uint8_t *out, uint8_t outlen )
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for( int i = 0; i < 8; ++i ) /* Output full hash to temp buffer */
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store32( buffer + sizeof( S->h[i] ) * i, S->h[i] );
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memcpy( out, buffer, outlen );
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return 0;
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}
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@ -341,7 +344,7 @@ int blake2s( uint8_t *out, const void *in, const void *key, const uint8_t outlen
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if( blake2s_init( S, outlen ) < 0 ) return -1;
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}
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blake2s_update( S, ( uint8_t * )in, inlen );
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blake2s_update( S, ( const uint8_t * )in, inlen );
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blake2s_final( S, out, outlen );
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return 0;
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}
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@ -177,8 +177,7 @@ int blake2sp_final( blake2sp_state *S, uint8_t *out, const uint8_t outlen )
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for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
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blake2s_update( S->R, hash[i], BLAKE2S_OUTBYTES );
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blake2s_final( S->R, out, outlen );
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return 0;
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return blake2s_final( S->R, out, outlen );
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}
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@ -251,8 +250,7 @@ int blake2sp( uint8_t *out, const void *in, const void *key, uint8_t outlen, uin
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for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
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blake2s_update( FS, hash[i], BLAKE2S_OUTBYTES );
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blake2s_final( FS, out, outlen );
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return 0;
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return blake2s_final( FS, out, outlen );
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}
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@ -19,9 +19,11 @@
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static inline uint32_t load32( const void *src )
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{
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#if defined(NATIVE_LITTLE_ENDIAN)
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return *( uint32_t * )( src );
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uint32_t w;
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memcpy(&w, src, sizeof w);
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return w;
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#else
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const uint8_t *p = ( uint8_t * )src;
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const uint8_t *p = ( const uint8_t * )src;
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uint32_t w = *p++;
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w |= ( uint32_t )( *p++ ) << 8;
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w |= ( uint32_t )( *p++ ) << 16;
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@ -33,9 +35,11 @@ static inline uint32_t load32( const void *src )
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static inline uint64_t load64( const void *src )
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{
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#if defined(NATIVE_LITTLE_ENDIAN)
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return *( uint64_t * )( src );
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uint64_t w;
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memcpy(&w, src, sizeof w);
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return w;
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#else
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const uint8_t *p = ( uint8_t * )src;
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const uint8_t *p = ( const uint8_t * )src;
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uint64_t w = *p++;
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w |= ( uint64_t )( *p++ ) << 8;
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w |= ( uint64_t )( *p++ ) << 16;
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@ -51,7 +55,7 @@ static inline uint64_t load64( const void *src )
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static inline void store32( void *dst, uint32_t w )
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{
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#if defined(NATIVE_LITTLE_ENDIAN)
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*( uint32_t * )( dst ) = w;
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memcpy(dst, &w, sizeof w);
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#else
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uint8_t *p = ( uint8_t * )dst;
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*p++ = ( uint8_t )w; w >>= 8;
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@ -64,7 +68,7 @@ static inline void store32( void *dst, uint32_t w )
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static inline void store64( void *dst, uint64_t w )
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{
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#if defined(NATIVE_LITTLE_ENDIAN)
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*( uint64_t * )( dst ) = w;
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memcpy(dst, &w, sizeof w);
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#else
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uint8_t *p = ( uint8_t * )dst;
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*p++ = ( uint8_t )w; w >>= 8;
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@ -125,7 +129,6 @@ static inline uint64_t rotr64( const uint64_t w, const unsigned c )
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static inline void secure_zero_memory( void *v, size_t n )
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{
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volatile uint8_t *p = ( volatile uint8_t * )v;
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while( n-- ) *p++ = 0;
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}
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@ -14,10 +14,10 @@
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#ifndef __BLAKE2B_ROUND_H__
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#define __BLAKE2B_ROUND_H__
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#define LOAD(p) _mm_load_si128( (__m128i *)(p) )
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#define LOAD(p) _mm_load_si128( (const __m128i *)(p) )
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#define STORE(p,r) _mm_store_si128((__m128i *)(p), r)
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#define LOADU(p) _mm_loadu_si128( (__m128i *)(p) )
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#define LOADU(p) _mm_loadu_si128( (const __m128i *)(p) )
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#define STOREU(p,r) _mm_storeu_si128((__m128i *)(p), r)
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#define TOF(reg) _mm_castsi128_ps((reg))
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@ -175,11 +175,10 @@ static inline int blake2b_init0( blake2b_state *S )
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/* init xors IV with input parameter block */
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int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
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{
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uint8_t *p, *h, *v;
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//blake2b_init0( S );
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v = ( uint8_t * )( blake2b_IV );
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h = ( uint8_t * )( S->h );
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p = ( uint8_t * )( P );
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const uint8_t * v = ( const uint8_t * )( blake2b_IV );
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const uint8_t * p = ( const uint8_t * )( P );
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uint8_t * h = ( uint8_t * )( S->h );
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/* IV XOR ParamBlock */
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memset( S, 0, sizeof( blake2b_state ) );
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@ -349,6 +348,9 @@ int blake2b_update( blake2b_state *S, const uint8_t *in, uint64_t inlen )
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int blake2b_final( blake2b_state *S, uint8_t *out, uint8_t outlen )
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{
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if( outlen > BLAKE2B_OUTBYTES )
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return -1;
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if( S->buflen > BLAKE2B_BLOCKBYTES )
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{
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blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
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@ -386,7 +388,7 @@ int blake2b( uint8_t *out, const void *in, const void *key, const uint8_t outlen
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if( blake2b_init( S, outlen ) < 0 ) return -1;
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}
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blake2b_update( S, ( uint8_t * )in, inlen );
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blake2b_update( S, ( const uint8_t * )in, inlen );
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blake2b_final( S, out, outlen );
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return 0;
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}
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@ -181,8 +181,7 @@ int blake2bp_final( blake2bp_state *S, uint8_t *out, const uint8_t outlen )
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for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
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blake2b_update( S->R, hash[i], BLAKE2B_OUTBYTES );
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blake2b_final( S->R, out, outlen );
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return 0;
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return blake2b_final( S->R, out, outlen );
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}
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int blake2bp( uint8_t *out, const void *in, const void *key, uint8_t outlen, uint64_t inlen, uint8_t keylen )
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@ -254,8 +253,7 @@ int blake2bp( uint8_t *out, const void *in, const void *key, uint8_t outlen, uin
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for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
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blake2b_update( FS, hash[i], BLAKE2B_OUTBYTES );
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blake2b_final( FS, out, outlen );
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return 0;
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return blake2b_final( FS, out, outlen );
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}
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@ -14,10 +14,10 @@
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#ifndef __BLAKE2S_ROUND_H__
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#define __BLAKE2S_ROUND_H__
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#define LOAD(p) _mm_load_si128( (__m128i *)(p) )
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#define LOAD(p) _mm_load_si128( (const __m128i *)(p) )
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#define STORE(p,r) _mm_store_si128((__m128i *)(p), r)
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#define LOADU(p) _mm_loadu_si128( (__m128i *)(p) )
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#define LOADU(p) _mm_loadu_si128( (const __m128i *)(p) )
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#define STOREU(p,r) _mm_storeu_si128((__m128i *)(p), r)
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#define TOF(reg) _mm_castsi128_ps((reg))
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@ -164,11 +164,10 @@ static inline int blake2s_init0( blake2s_state *S )
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/* init2 xors IV with input parameter block */
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int blake2s_init_param( blake2s_state *S, const blake2s_param *P )
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{
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uint8_t *p, *h, *v;
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//blake2s_init0( S );
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v = ( uint8_t * )( blake2s_IV );
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h = ( uint8_t * )( S->h );
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p = ( uint8_t * )( P );
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const uint8_t * v = ( const uint8_t * )( blake2s_IV );
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const uint8_t * p = ( const uint8_t * )( P );
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uint8_t * h = ( uint8_t * )( S->h );
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/* IV XOR ParamBlock */
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memset( S, 0, sizeof( blake2s_state ) );
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@ -327,7 +326,10 @@ int blake2s_update( blake2s_state *S, const uint8_t *in, uint64_t inlen )
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/* Is this correct? */
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int blake2s_final( blake2s_state *S, uint8_t *out, uint8_t outlen )
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{
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uint8_t buffer[BLAKE2S_OUTBYTES];
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uint8_t buffer[BLAKE2S_OUTBYTES] = {0};
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if( outlen > BLAKE2S_OUTBYTES )
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return -1;
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if( S->buflen > BLAKE2S_BLOCKBYTES )
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{
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@ -370,7 +372,7 @@ int blake2s( uint8_t *out, const void *in, const void *key, const uint8_t outlen
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if( blake2s_init( S, outlen ) < 0 ) return -1;
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}
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blake2s_update( S, ( uint8_t * )in, inlen );
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blake2s_update( S, ( const uint8_t * )in, inlen );
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blake2s_final( S, out, outlen );
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return 0;
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}
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@ -177,8 +177,7 @@ int blake2sp_final( blake2sp_state *S, uint8_t *out, const uint8_t outlen )
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for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
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blake2s_update( S->R, hash[i], BLAKE2S_OUTBYTES );
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blake2s_final( S->R, out, outlen );
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return 0;
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return blake2s_final( S->R, out, outlen );
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}
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@ -251,8 +250,7 @@ int blake2sp( uint8_t *out, const void *in, const void *key, uint8_t outlen, uin
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for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
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blake2s_update( FS, hash[i], BLAKE2S_OUTBYTES );
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blake2s_final( FS, out, outlen );
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return 0;
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return blake2s_final( FS, out, outlen );
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}
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#if defined(BLAKE2SP_SELFTEST)
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