#define BLAKE2_PACKED(x) x __attribute__((packed))
#endif
- enum blake2s_constant
- {
- BLAKE2S_BLOCKBYTES = 64,
- BLAKE2S_OUTBYTES = 32,
- BLAKE2S_KEYBYTES = 32,
- BLAKE2S_SALTBYTES = 8,
- BLAKE2S_PERSONALBYTES = 8
- };
-
- enum blake2b_constant
- {
- BLAKE2B_BLOCKBYTES = 128,
- BLAKE2B_OUTBYTES = 64,
- BLAKE2B_KEYBYTES = 64,
- BLAKE2B_SALTBYTES = 16,
- BLAKE2B_PERSONALBYTES = 16
- };
-
- typedef struct blake2s_state__
- {
- uint32_t h[8];
- uint32_t t[2];
- uint32_t f[2];
- uint8_t buf[BLAKE2S_BLOCKBYTES];
- size_t buflen;
- size_t outlen;
- uint8_t last_node;
- } blake2s_state;
-
- typedef struct blake2b_state__
- {
- uint64_t h[8];
- uint64_t t[2];
- uint64_t f[2];
- uint8_t buf[BLAKE2B_BLOCKBYTES];
- size_t buflen;
- size_t outlen;
- uint8_t last_node;
- } blake2b_state;
-
- typedef struct blake2sp_state__
- {
- blake2s_state S[8][1];
- blake2s_state R[1];
- uint8_t buf[8 * BLAKE2S_BLOCKBYTES];
- size_t buflen;
- size_t outlen;
- } blake2sp_state;
-
- typedef struct blake2bp_state__
- {
- blake2b_state S[4][1];
- blake2b_state R[1];
- uint8_t buf[4 * BLAKE2B_BLOCKBYTES];
- size_t buflen;
- size_t outlen;
- } blake2bp_state;
-
-
- BLAKE2_PACKED(struct blake2s_param__
- {
- uint8_t digest_length; /* 1 */
- uint8_t key_length; /* 2 */
- uint8_t fanout; /* 3 */
- uint8_t depth; /* 4 */
- uint32_t leaf_length; /* 8 */
- uint32_t node_offset; /* 12 */
- uint16_t xof_length; /* 14 */
- uint8_t node_depth; /* 15 */
- uint8_t inner_length; /* 16 */
- /* uint8_t reserved[0]; */
- uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */
- uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */
- });
-
- typedef struct blake2s_param__ blake2s_param;
-
- BLAKE2_PACKED(struct blake2b_param__
- {
- uint8_t digest_length; /* 1 */
- uint8_t key_length; /* 2 */
- uint8_t fanout; /* 3 */
- uint8_t depth; /* 4 */
- uint32_t leaf_length; /* 8 */
- uint32_t node_offset; /* 12 */
- uint32_t xof_length; /* 16 */
- uint8_t node_depth; /* 17 */
- uint8_t inner_length; /* 18 */
- uint8_t reserved[14]; /* 32 */
- uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
- uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
- });
-
- typedef struct blake2b_param__ blake2b_param;
-
- typedef struct blake2xs_state__
- {
- blake2s_state S[1];
- blake2s_param P[1];
- } blake2xs_state;
-
- typedef struct blake2xb_state__
- {
- blake2b_state S[1];
- blake2b_param P[1];
- } blake2xb_state;
+enum blake2s_constant {
+ BLAKE2S_BLOCKBYTES = 64,
+ BLAKE2S_OUTBYTES = 32,
+ BLAKE2S_KEYBYTES = 32,
+ BLAKE2S_SALTBYTES = 8,
+ BLAKE2S_PERSONALBYTES = 8
+};
+
+enum blake2b_constant {
+ BLAKE2B_BLOCKBYTES = 128,
+ BLAKE2B_OUTBYTES = 64,
+ BLAKE2B_KEYBYTES = 64,
+ BLAKE2B_SALTBYTES = 16,
+ BLAKE2B_PERSONALBYTES = 16
+};
+
+typedef struct blake2s_state__ {
+ uint32_t h[8];
+ uint32_t t[2];
+ uint32_t f[2];
+ uint8_t buf[BLAKE2S_BLOCKBYTES];
+ size_t buflen;
+ size_t outlen;
+ uint8_t last_node;
+} blake2s_state;
+
+typedef struct blake2b_state__ {
+ uint64_t h[8];
+ uint64_t t[2];
+ uint64_t f[2];
+ uint8_t buf[BLAKE2B_BLOCKBYTES];
+ size_t buflen;
+ size_t outlen;
+ uint8_t last_node;
+} blake2b_state;
+
+typedef struct blake2sp_state__ {
+ blake2s_state S[8][1];
+ blake2s_state R[1];
+ uint8_t buf[8 * BLAKE2S_BLOCKBYTES];
+ size_t buflen;
+ size_t outlen;
+} blake2sp_state;
+
+typedef struct blake2bp_state__ {
+ blake2b_state S[4][1];
+ blake2b_state R[1];
+ uint8_t buf[4 * BLAKE2B_BLOCKBYTES];
+ size_t buflen;
+ size_t outlen;
+} blake2bp_state;
+
+
+BLAKE2_PACKED(struct blake2s_param__ {
+ uint8_t digest_length; /* 1 */
+ uint8_t key_length; /* 2 */
+ uint8_t fanout; /* 3 */
+ uint8_t depth; /* 4 */
+ uint32_t leaf_length; /* 8 */
+ uint32_t node_offset; /* 12 */
+ uint16_t xof_length; /* 14 */
+ uint8_t node_depth; /* 15 */
+ uint8_t inner_length; /* 16 */
+ /* uint8_t reserved[0]; */
+ uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */
+ uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */
+ });
+
+typedef struct blake2s_param__ blake2s_param;
+
+BLAKE2_PACKED(struct blake2b_param__ {
+ uint8_t digest_length; /* 1 */
+ uint8_t key_length; /* 2 */
+ uint8_t fanout; /* 3 */
+ uint8_t depth; /* 4 */
+ uint32_t leaf_length; /* 8 */
+ uint32_t node_offset; /* 12 */
+ uint32_t xof_length; /* 16 */
+ uint8_t node_depth; /* 17 */
+ uint8_t inner_length; /* 18 */
+ uint8_t reserved[14]; /* 32 */
+ uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
+ uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
+ });
+
+typedef struct blake2b_param__ blake2b_param;
+
+typedef struct blake2xs_state__ {
+ blake2s_state S[1];
+ blake2s_param P[1];
+} blake2xs_state;
+
+typedef struct blake2xb_state__ {
+ blake2b_state S[1];
+ blake2b_param P[1];
+} blake2xb_state;
/* Padded structs result in a compile-time error */
- enum {
- BLAKE2_DUMMY_1 = 1/(sizeof(blake2s_param) == BLAKE2S_OUTBYTES),
- BLAKE2_DUMMY_2 = 1/(sizeof(blake2b_param) == BLAKE2B_OUTBYTES)
- };
+enum {
+ BLAKE2_DUMMY_1 = 1 / (sizeof(blake2s_param) == BLAKE2S_OUTBYTES),
+ BLAKE2_DUMMY_2 = 1 / (sizeof(blake2b_param) == BLAKE2B_OUTBYTES)
+};
/* Streaming API */
- int blake2s_init( blake2s_state *S, size_t outlen );
- int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen );
- int blake2s_init_param( blake2s_state *S, const blake2s_param *P );
- int blake2s_update( blake2s_state *S, const void *in, size_t inlen );
- int blake2s_final( blake2s_state *S, void *out, size_t outlen );
-
- int blake2b_init( blake2b_state *S, size_t outlen );
- int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen );
- int blake2b_init_param( blake2b_state *S, const blake2b_param *P );
- int blake2b_update( blake2b_state *S, const void *in, size_t inlen );
- int blake2b_final( blake2b_state *S, void *out, size_t outlen );
-
- int blake2sp_init( blake2sp_state *S, size_t outlen );
- int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen );
- int blake2sp_update( blake2sp_state *S, const void *in, size_t inlen );
- int blake2sp_final( blake2sp_state *S, void *out, size_t outlen );
-
- int blake2bp_init( blake2bp_state *S, size_t outlen );
- int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen );
- int blake2bp_update( blake2bp_state *S, const void *in, size_t inlen );
- int blake2bp_final( blake2bp_state *S, void *out, size_t outlen );
+int blake2s_init(blake2s_state * S, size_t outlen);
+int blake2s_init_key(blake2s_state * S, size_t outlen, const void *key,
+ size_t keylen);
+int blake2s_init_param(blake2s_state * S, const blake2s_param * P);
+int blake2s_update(blake2s_state * S, const void *in, size_t inlen);
+int blake2s_final(blake2s_state * S, void *out, size_t outlen);
+
+int blake2b_init(blake2b_state * S, size_t outlen);
+int blake2b_init_key(blake2b_state * S, size_t outlen, const void *key,
+ size_t keylen);
+int blake2b_init_param(blake2b_state * S, const blake2b_param * P);
+int blake2b_update(blake2b_state * S, const void *in, size_t inlen);
+int blake2b_final(blake2b_state * S, void *out, size_t outlen);
+
+int blake2sp_init(blake2sp_state * S, size_t outlen);
+int blake2sp_init_key(blake2sp_state * S, size_t outlen, const void *key,
+ size_t keylen);
+int blake2sp_update(blake2sp_state * S, const void *in, size_t inlen);
+int blake2sp_final(blake2sp_state * S, void *out, size_t outlen);
+
+int blake2bp_init(blake2bp_state * S, size_t outlen);
+int blake2bp_init_key(blake2bp_state * S, size_t outlen, const void *key,
+ size_t keylen);
+int blake2bp_update(blake2bp_state * S, const void *in, size_t inlen);
+int blake2bp_final(blake2bp_state * S, void *out, size_t outlen);
/* Variable output length API */
- int blake2xs_init( blake2xs_state *S, const size_t outlen );
- int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen );
- int blake2xs_update( blake2xs_state *S, const void *in, size_t inlen );
- int blake2xs_final(blake2xs_state *S, void *out, size_t outlen);
-
- int blake2xb_init( blake2xb_state *S, const size_t outlen );
- int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen );
- int blake2xb_update( blake2xb_state *S, const void *in, size_t inlen );
- int blake2xb_final(blake2xb_state *S, void *out, size_t outlen);
+int blake2xs_init(blake2xs_state * S, const size_t outlen);
+int blake2xs_init_key(blake2xs_state * S, const size_t outlen,
+ const void *key, size_t keylen);
+int blake2xs_update(blake2xs_state * S, const void *in, size_t inlen);
+int blake2xs_final(blake2xs_state * S, void *out, size_t outlen);
+
+int blake2xb_init(blake2xb_state * S, const size_t outlen);
+int blake2xb_init_key(blake2xb_state * S, const size_t outlen,
+ const void *key, size_t keylen);
+int blake2xb_update(blake2xb_state * S, const void *in, size_t inlen);
+int blake2xb_final(blake2xb_state * S, void *out, size_t outlen);
/* Simple API */
- int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
- int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+int blake2s(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen);
+int blake2b(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen);
- int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
- int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+int blake2sp(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen);
+int blake2bp(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen);
- int blake2xs( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
- int blake2xb( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+int blake2xs(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen);
+int blake2xb(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen);
/* This is simply an alias for blake2b */
- int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+int blake2(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen);
#endif
#include "blake2.h"
-static uint64_t load64( const void *src )
-{
+static uint64_t load64(const void *src) {
#if defined(NATIVE_LITTLE_ENDIAN)
- uint64_t w;
- memcpy(&w, src, sizeof w);
- return w;
+ uint64_t w;
+ memcpy(&w, src, sizeof w);
+ return w;
#else
- const uint8_t *p = ( const uint8_t * )src;
- return (( uint64_t )( p[0] ) << 0) |
- (( uint64_t )( p[1] ) << 8) |
- (( uint64_t )( p[2] ) << 16) |
- (( uint64_t )( p[3] ) << 24) |
- (( uint64_t )( p[4] ) << 32) |
- (( uint64_t )( p[5] ) << 40) |
- (( uint64_t )( p[6] ) << 48) |
- (( uint64_t )( p[7] ) << 56) ;
+ const uint8_t *p = (const uint8_t *) src;
+ return ((uint64_t) (p[0]) << 0) |
+ ((uint64_t) (p[1]) << 8) |
+ ((uint64_t) (p[2]) << 16) |
+ ((uint64_t) (p[3]) << 24) |
+ ((uint64_t) (p[4]) << 32) |
+ ((uint64_t) (p[5]) << 40) |
+ ((uint64_t) (p[6]) << 48) | ((uint64_t) (p[7]) << 56);
#endif
}
-static void store32( void *dst, uint32_t w )
-{
+static void store32(void *dst, uint32_t w) {
#if defined(NATIVE_LITTLE_ENDIAN)
- memcpy(dst, &w, sizeof w);
+ memcpy(dst, &w, sizeof w);
#else
- uint8_t *p = ( uint8_t * )dst;
- p[0] = (uint8_t)(w >> 0);
- p[1] = (uint8_t)(w >> 8);
- p[2] = (uint8_t)(w >> 16);
- p[3] = (uint8_t)(w >> 24);
+ uint8_t *p = (uint8_t *) dst;
+ p[0] = (uint8_t) (w >> 0);
+ p[1] = (uint8_t) (w >> 8);
+ p[2] = (uint8_t) (w >> 16);
+ p[3] = (uint8_t) (w >> 24);
#endif
}
-static void store64( void *dst, uint64_t w )
-{
+static void store64(void *dst, uint64_t w) {
#if defined(NATIVE_LITTLE_ENDIAN)
- memcpy(dst, &w, sizeof w);
+ memcpy(dst, &w, sizeof w);
#else
- uint8_t *p = ( uint8_t * )dst;
- p[0] = (uint8_t)(w >> 0);
- p[1] = (uint8_t)(w >> 8);
- p[2] = (uint8_t)(w >> 16);
- p[3] = (uint8_t)(w >> 24);
- p[4] = (uint8_t)(w >> 32);
- p[5] = (uint8_t)(w >> 40);
- p[6] = (uint8_t)(w >> 48);
- p[7] = (uint8_t)(w >> 56);
+ uint8_t *p = (uint8_t *) dst;
+ p[0] = (uint8_t) (w >> 0);
+ p[1] = (uint8_t) (w >> 8);
+ p[2] = (uint8_t) (w >> 16);
+ p[3] = (uint8_t) (w >> 24);
+ p[4] = (uint8_t) (w >> 32);
+ p[5] = (uint8_t) (w >> 40);
+ p[6] = (uint8_t) (w >> 48);
+ p[7] = (uint8_t) (w >> 56);
#endif
}
-static uint64_t rotr64( const uint64_t w, const unsigned c )
-{
- return ( w >> c ) | ( w << ( 64 - c ) );
+static uint64_t rotr64(const uint64_t w, const unsigned c) {
+ return (w >> c) | (w << (64 - c));
}
/* prevents compiler optimizing out memset() */
-static void secure_zero_memory(void *v, size_t n)
-{
- static void *(*const volatile memset_v)(void *, int, size_t) = &memset;
- memset_v(v, 0, n);
+static void secure_zero_memory(void *v, size_t n) {
+ static void *(*const volatile memset_v)(void *, int, size_t) =
+ &memset;
+ memset_v(v, 0, n);
}
-static const uint64_t blake2b_IV[8] =
-{
- 0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
- 0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
- 0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
- 0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
+static const uint64_t blake2b_IV[8] = {
+ 0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
+ 0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
+ 0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
+ 0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
};
-static const uint8_t blake2b_sigma[12][16] =
-{
- { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
- { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 } ,
- { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 } ,
- { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 } ,
- { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 } ,
- { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 } ,
- { 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 } ,
- { 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 } ,
- { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 } ,
- { 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 } ,
- { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
- { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }
+static const uint8_t blake2b_sigma[12][16] = {
+ { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
+ { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
+ { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
+ { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
+ { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
+ { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 },
+ { 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 },
+ { 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 },
+ { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 },
+ { 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0 },
+ { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
+ { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }
};
-static void blake2b_set_lastnode( blake2b_state *S )
-{
- S->f[1] = (uint64_t)-1;
+static void blake2b_set_lastnode(blake2b_state * S) {
+ S->f[1] = (uint64_t) - 1;
}
/* Some helper functions, not necessarily useful */
-static int blake2b_is_lastblock( const blake2b_state *S ) {
+static int blake2b_is_lastblock(const blake2b_state * S) {
return S->f[0] != 0;
}
-static void blake2b_set_lastblock( blake2b_state *S )
-{
- if( S->last_node ) blake2b_set_lastnode( S );
+static void blake2b_set_lastblock(blake2b_state * S) {
+ if (S->last_node)
+ blake2b_set_lastnode(S);
- S->f[0] = (uint64_t)-1;
+ S->f[0] = (uint64_t) - 1;
}
-static void blake2b_increment_counter( blake2b_state *S, const uint64_t inc )
-{
- S->t[0] += inc;
- S->t[1] += ( S->t[0] < inc );
+static void blake2b_increment_counter(blake2b_state * S,
+ const uint64_t inc) {
+ S->t[0] += inc;
+ S->t[1] += (S->t[0] < inc);
}
-static void blake2b_init0( blake2b_state *S )
-{
- size_t i;
- memset( S, 0, sizeof( blake2b_state ) );
+static void blake2b_init0(blake2b_state * S) {
+ size_t i;
+ memset(S, 0, sizeof(blake2b_state));
- for( i = 0; i < 8; ++i ) S->h[i] = blake2b_IV[i];
+ for (i = 0; i < 8; ++i)
+ S->h[i] = blake2b_IV[i];
}
/* init xors IV with input parameter block */
-int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
-{
- const uint8_t *p = ( const uint8_t * )( P );
- size_t i;
+int blake2b_init_param(blake2b_state * S, const blake2b_param * P) {
+ const uint8_t *p = (const uint8_t *) (P);
+ size_t i;
- blake2b_init0( S );
+ blake2b_init0(S);
- /* IV XOR ParamBlock */
- for( i = 0; i < 8; ++i )
- S->h[i] ^= load64( p + sizeof( S->h[i] ) * i );
+ /* IV XOR ParamBlock */
+ for (i = 0; i < 8; ++i)
+ S->h[i] ^= load64(p + sizeof(S->h[i]) * i);
- S->outlen = P->digest_length;
- return 0;
+ S->outlen = P->digest_length;
+ return 0;
}
-
-
-int blake2b_init( blake2b_state *S, size_t outlen )
-{
- blake2b_param P[1];
-
- if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
-
- P->digest_length = (uint8_t)outlen;
- P->key_length = 0;
- P->fanout = 1;
- P->depth = 1;
- store32( &P->leaf_length, 0 );
- store32( &P->node_offset, 0 );
- store32( &P->xof_length, 0 );
- P->node_depth = 0;
- P->inner_length = 0;
- memset( P->reserved, 0, sizeof( P->reserved ) );
- memset( P->salt, 0, sizeof( P->salt ) );
- memset( P->personal, 0, sizeof( P->personal ) );
- return blake2b_init_param( S, P );
+int blake2b_init(blake2b_state * S, size_t outlen) {
+ blake2b_param P[1];
+
+ if ((!outlen) || (outlen > BLAKE2B_OUTBYTES))
+ return -1;
+
+ P->digest_length = (uint8_t) outlen;
+ P->key_length = 0;
+ P->fanout = 1;
+ P->depth = 1;
+ store32(&P->leaf_length, 0);
+ store32(&P->node_offset, 0);
+ store32(&P->xof_length, 0);
+ P->node_depth = 0;
+ P->inner_length = 0;
+ memset(P->reserved, 0, sizeof(P->reserved));
+ memset(P->salt, 0, sizeof(P->salt));
+ memset(P->personal, 0, sizeof(P->personal));
+ return blake2b_init_param(S, P);
}
-
-int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen )
-{
- blake2b_param P[1];
-
- if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
-
- if ( !key || !keylen || keylen > BLAKE2B_KEYBYTES ) return -1;
-
- P->digest_length = (uint8_t)outlen;
- P->key_length = (uint8_t)keylen;
- P->fanout = 1;
- P->depth = 1;
- store32( &P->leaf_length, 0 );
- store32( &P->node_offset, 0 );
- store32( &P->xof_length, 0 );
- P->node_depth = 0;
- P->inner_length = 0;
- memset( P->reserved, 0, sizeof( P->reserved ) );
- memset( P->salt, 0, sizeof( P->salt ) );
- memset( P->personal, 0, sizeof( P->personal ) );
-
- if( blake2b_init_param( S, P ) < 0 ) return -1;
-
- {
- uint8_t block[BLAKE2B_BLOCKBYTES];
- memset( block, 0, BLAKE2B_BLOCKBYTES );
- memcpy( block, key, keylen );
- blake2b_update( S, block, BLAKE2B_BLOCKBYTES );
- secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
- }
- return 0;
+int blake2b_init_key(blake2b_state * S, size_t outlen, const void *key,
+ size_t keylen) {
+ blake2b_param P[1];
+
+ if ((!outlen) || (outlen > BLAKE2B_OUTBYTES))
+ return -1;
+
+ if (!key || !keylen || keylen > BLAKE2B_KEYBYTES)
+ return -1;
+
+ P->digest_length = (uint8_t) outlen;
+ P->key_length = (uint8_t) keylen;
+ P->fanout = 1;
+ P->depth = 1;
+ store32(&P->leaf_length, 0);
+ store32(&P->node_offset, 0);
+ store32(&P->xof_length, 0);
+ P->node_depth = 0;
+ P->inner_length = 0;
+ memset(P->reserved, 0, sizeof(P->reserved));
+ memset(P->salt, 0, sizeof(P->salt));
+ memset(P->personal, 0, sizeof(P->personal));
+
+ if (blake2b_init_param(S, P) < 0)
+ return -1;
+
+ {
+ uint8_t block[BLAKE2B_BLOCKBYTES];
+ memset(block, 0, BLAKE2B_BLOCKBYTES);
+ memcpy(block, key, keylen);
+ blake2b_update(S, block, BLAKE2B_BLOCKBYTES);
+ secure_zero_memory(block, BLAKE2B_BLOCKBYTES); /* Burn the key from stack */
+ }
+ return 0;
}
#define G(r,i,a,b,c,d) \
G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \
} while(0)
-static void blake2b_compress( blake2b_state *S, const uint8_t block[BLAKE2B_BLOCKBYTES] )
-{
- uint64_t m[16];
- uint64_t v[16];
- size_t i;
-
- for( i = 0; i < 16; ++i ) {
- m[i] = load64( block + i * sizeof( m[i] ) );
- }
-
- for( i = 0; i < 8; ++i ) {
- v[i] = S->h[i];
- }
-
- v[ 8] = blake2b_IV[0];
- v[ 9] = blake2b_IV[1];
- v[10] = blake2b_IV[2];
- v[11] = blake2b_IV[3];
- v[12] = blake2b_IV[4] ^ S->t[0];
- v[13] = blake2b_IV[5] ^ S->t[1];
- v[14] = blake2b_IV[6] ^ S->f[0];
- v[15] = blake2b_IV[7] ^ S->f[1];
-
- ROUND( 0 );
- ROUND( 1 );
- ROUND( 2 );
- ROUND( 3 );
- ROUND( 4 );
- ROUND( 5 );
- ROUND( 6 );
- ROUND( 7 );
- ROUND( 8 );
- ROUND( 9 );
- ROUND( 10 );
- ROUND( 11 );
-
- for( i = 0; i < 8; ++i ) {
- S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
- }
+static void blake2b_compress(blake2b_state * S,
+ const uint8_t block[BLAKE2B_BLOCKBYTES]) {
+ uint64_t m[16];
+ uint64_t v[16];
+ size_t i;
+
+ for (i = 0; i < 16; ++i) {
+ m[i] = load64(block + i * sizeof(m[i]));
+ }
+
+ for (i = 0; i < 8; ++i) {
+ v[i] = S->h[i];
+ }
+
+ v[8] = blake2b_IV[0];
+ v[9] = blake2b_IV[1];
+ v[10] = blake2b_IV[2];
+ v[11] = blake2b_IV[3];
+ v[12] = blake2b_IV[4] ^ S->t[0];
+ v[13] = blake2b_IV[5] ^ S->t[1];
+ v[14] = blake2b_IV[6] ^ S->f[0];
+ v[15] = blake2b_IV[7] ^ S->f[1];
+
+ ROUND(0);
+ ROUND(1);
+ ROUND(2);
+ ROUND(3);
+ ROUND(4);
+ ROUND(5);
+ ROUND(6);
+ ROUND(7);
+ ROUND(8);
+ ROUND(9);
+ ROUND(10);
+ ROUND(11);
+
+ for (i = 0; i < 8; ++i) {
+ S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
+ }
}
#undef G
#undef ROUND
-int blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
-{
- const unsigned char * in = (const unsigned char *)pin;
- if( inlen > 0 )
- {
- size_t left = S->buflen;
- size_t fill = BLAKE2B_BLOCKBYTES - left;
- if( inlen > fill )
- {
- S->buflen = 0;
- memcpy( S->buf + left, in, fill ); /* Fill buffer */
- blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
- blake2b_compress( S, S->buf ); /* Compress */
- in += fill; inlen -= fill;
- while(inlen > BLAKE2B_BLOCKBYTES) {
- blake2b_increment_counter(S, BLAKE2B_BLOCKBYTES);
- blake2b_compress( S, in );
- in += BLAKE2B_BLOCKBYTES;
- inlen -= BLAKE2B_BLOCKBYTES;
- }
- }
- memcpy( S->buf + S->buflen, in, inlen );
- S->buflen += inlen;
- }
- return 0;
+int blake2b_update(blake2b_state * S, const void *pin, size_t inlen) {
+ const unsigned char *in = (const unsigned char *) pin;
+ if (inlen > 0) {
+ size_t left = S->buflen;
+ size_t fill = BLAKE2B_BLOCKBYTES - left;
+ if (inlen > fill) {
+ S->buflen = 0;
+ memcpy(S->buf + left, in, fill); /* Fill buffer */
+ blake2b_increment_counter(S, BLAKE2B_BLOCKBYTES);
+ blake2b_compress(S, S->buf); /* Compress */
+ in += fill;
+ inlen -= fill;
+ while (inlen > BLAKE2B_BLOCKBYTES) {
+ blake2b_increment_counter(S,
+ BLAKE2B_BLOCKBYTES);
+ blake2b_compress(S, in);
+ in += BLAKE2B_BLOCKBYTES;
+ inlen -= BLAKE2B_BLOCKBYTES;
+ }
+ }
+ memcpy(S->buf + S->buflen, in, inlen);
+ S->buflen += inlen;
+ }
+ return 0;
}
-int blake2b_final( blake2b_state *S, void *out, size_t outlen )
-{
- uint8_t buffer[BLAKE2B_OUTBYTES] = {0};
- size_t i;
+int blake2b_final(blake2b_state * S, void *out, size_t outlen) {
+ uint8_t buffer[BLAKE2B_OUTBYTES] = { 0 };
+ size_t i;
- if( out == NULL || outlen < S->outlen )
- return -1;
+ if (out == NULL || outlen < S->outlen)
+ return -1;
- if( blake2b_is_lastblock( S ) )
- return -1;
+ if (blake2b_is_lastblock(S))
+ return -1;
- blake2b_increment_counter( S, S->buflen );
- blake2b_set_lastblock( S );
- memset( S->buf + S->buflen, 0, BLAKE2B_BLOCKBYTES - S->buflen ); /* Padding */
- blake2b_compress( S, S->buf );
+ blake2b_increment_counter(S, S->buflen);
+ blake2b_set_lastblock(S);
+ memset(S->buf + S->buflen, 0, BLAKE2B_BLOCKBYTES - S->buflen); /* Padding */
+ blake2b_compress(S, S->buf);
- for( i = 0; i < 8; ++i ) /* Output full hash to temp buffer */
- store64( buffer + sizeof( S->h[i] ) * i, S->h[i] );
+ for (i = 0; i < 8; ++i) /* Output full hash to temp buffer */
+ store64(buffer + sizeof(S->h[i]) * i, S->h[i]);
- memcpy( out, buffer, S->outlen );
- secure_zero_memory(buffer, sizeof(buffer));
- return 0;
+ memcpy(out, buffer, S->outlen);
+ secure_zero_memory(buffer, sizeof(buffer));
+ return 0;
}
/* inlen, at least, should be uint64_t. Others can be size_t. */
-int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
-{
- blake2b_state S[1];
+int blake2b(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen) {
+ blake2b_state S[1];
- /* Verify parameters */
- if ( NULL == in && inlen > 0 ) return -1;
+ /* Verify parameters */
+ if (NULL == in && inlen > 0)
+ return -1;
- if ( NULL == out ) return -1;
+ if (NULL == out)
+ return -1;
- if( NULL == key && keylen > 0 ) return -1;
+ if (NULL == key && keylen > 0)
+ return -1;
- if( !outlen || outlen > BLAKE2B_OUTBYTES ) return -1;
+ if (!outlen || outlen > BLAKE2B_OUTBYTES)
+ return -1;
- if( keylen > BLAKE2B_KEYBYTES ) return -1;
+ if (keylen > BLAKE2B_KEYBYTES)
+ return -1;
- if( keylen > 0 )
- {
- if( blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
- }
- else
- {
- if( blake2b_init( S, outlen ) < 0 ) return -1;
- }
+ if (keylen > 0) {
+ if (blake2b_init_key(S, outlen, key, keylen) < 0)
+ return -1;
+ } else {
+ if (blake2b_init(S, outlen) < 0)
+ return -1;
+ }
- blake2b_update( S, ( const uint8_t * )in, inlen );
- blake2b_final( S, out, outlen );
- return 0;
+ blake2b_update(S, (const uint8_t *) in, inlen);
+ blake2b_final(S, out, outlen);
+ return 0;
}
-int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ) {
- return blake2b(out, outlen, in, inlen, key, keylen);
+int blake2(void *out, size_t outlen, const void *in, size_t inlen,
+ const void *key, size_t keylen) {
+ return blake2b(out, outlen, in, inlen, key, keylen);
}
projects / zpackage / commitdiff