preparing to build tox from sources

1 files changed, 436 insertions, 0 deletions

diff --git a/libs/libsodium/src/crypto_generichash/blake2b/ref/blake2b-ref.c b/libs/libsodium/src/crypto_generichash/blake2b/ref/blake2b-ref.c
new file mode 100644
index 0000000000..91435a1b16
--- /dev/null
+++ b/libs/libsodium/src/crypto_generichash/blake2b/ref/blake2b-ref.c
@@ -0,0 +1,436 @@
+/*
+   BLAKE2 reference source code package - C implementations
+
+   Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
+
+   To the extent possible under law, the author(s) have dedicated all copyright
+   and related and neighboring rights to this software to the public domain
+   worldwide. This software is distributed without any warranty.
+
+   You should have received a copy of the CC0 Public Domain Dedication along
+   with
+   this software. If not, see
+   <http://creativecommons.org/publicdomain/zero/1.0/>.
+*/
+
+#include <assert.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "blake2.h"
+#include "core.h"
+#include "private/common.h"
+#include "runtime.h"
+#include "utils.h"
+
+static blake2b_compress_fn blake2b_compress = blake2b_compress_ref;
+
+static const uint64_t blake2b_IV[8] = {
+    0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL, 0x3c6ef372fe94f82bULL,
+    0xa54ff53a5f1d36f1ULL, 0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
+    0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
+};
+
+/* LCOV_EXCL_START */
+static inline int
+blake2b_set_lastnode(blake2b_state *S)
+{
+    S->f[1] = -1;
+    return 0;
+}
+/* LCOV_EXCL_STOP */
+
+static inline int
+blake2b_is_lastblock(const blake2b_state *S)
+{
+    return S->f[0] != 0;
+}
+
+static inline int
+blake2b_set_lastblock(blake2b_state *S)
+{
+    if (S->last_node)
+        blake2b_set_lastnode(S);
+
+    S->f[0] = -1;
+    return 0;
+}
+
+static inline int
+blake2b_increment_counter(blake2b_state *S, const uint64_t inc)
+{
+#ifdef HAVE_TI_MODE
+    uint128_t t = ((uint128_t) S->t[1] << 64) | S->t[0];
+    t += inc;
+    S->t[0] = (uint64_t)(t >> 0);
+    S->t[1] = (uint64_t)(t >> 64);
+#else
+    S->t[0] += inc;
+    S->t[1] += (S->t[0] < inc);
+#endif
+    return 0;
+}
+
+/* Parameter-related functions */
+static inline int
+blake2b_param_set_salt(blake2b_param *P, const uint8_t salt[BLAKE2B_SALTBYTES])
+{
+    memcpy(P->salt, salt, BLAKE2B_SALTBYTES);
+    return 0;
+}
+
+static inline int
+blake2b_param_set_personal(blake2b_param *P,
+                           const uint8_t  personal[BLAKE2B_PERSONALBYTES])
+{
+    memcpy(P->personal, personal, BLAKE2B_PERSONALBYTES);
+    return 0;
+}
+
+static inline int
+blake2b_init0(blake2b_state *S)
+{
+    int i;
+
+    for (i  = 0; i < 8; i++) {
+        S->h[i] = blake2b_IV[i];
+    }
+    memset(S->t, 0, offsetof(blake2b_state, last_node) + sizeof(S->last_node)
+           - offsetof(blake2b_state, t));
+    return 0;
+}
+
+/* init xors IV with input parameter block */
+int
+blake2b_init_param(blake2b_state *S, const blake2b_param *P)
+{
+    size_t         i;
+    const uint8_t *p;
+
+    COMPILER_ASSERT(sizeof *P == 64);
+    blake2b_init0(S);
+    p = (const uint8_t *) (P);
+
+    /* IV XOR ParamBlock */
+    for (i = 0; i < 8; i++) {
+        S->h[i] ^= LOAD64_LE(p + sizeof(S->h[i]) * i);
+    }
+    return 0;
+}
+
+int
+blake2b_init(blake2b_state *S, const uint8_t outlen)
+{
+    blake2b_param P[1];
+
+    if ((!outlen) || (outlen > BLAKE2B_OUTBYTES)) {
+        sodium_misuse();
+    }
+    P->digest_length = outlen;
+    P->key_length    = 0;
+    P->fanout        = 1;
+    P->depth         = 1;
+    STORE32_LE(P->leaf_length, 0);
+    STORE64_LE(P->node_offset, 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_salt_personal(blake2b_state *S, const uint8_t outlen,
+                           const void *salt, const void *personal)
+{
+    blake2b_param P[1];
+
+    if ((!outlen) || (outlen > BLAKE2B_OUTBYTES)) {
+        sodium_misuse();
+    }
+    P->digest_length = outlen;
+    P->key_length    = 0;
+    P->fanout        = 1;
+    P->depth         = 1;
+    STORE32_LE(P->leaf_length, 0);
+    STORE64_LE(P->node_offset, 0);
+    P->node_depth   = 0;
+    P->inner_length = 0;
+    memset(P->reserved, 0, sizeof(P->reserved));
+    if (salt != NULL) {
+        blake2b_param_set_salt(P, (const uint8_t *) salt);
+    } else {
+        memset(P->salt, 0, sizeof(P->salt));
+    }
+    if (personal != NULL) {
+        blake2b_param_set_personal(P, (const uint8_t *) personal);
+    } else {
+        memset(P->personal, 0, sizeof(P->personal));
+    }
+    return blake2b_init_param(S, P);
+}
+
+int
+blake2b_init_key(blake2b_state *S, const uint8_t outlen, const void *key,
+                 const uint8_t keylen)
+{
+    blake2b_param P[1];
+
+    if ((!outlen) || (outlen > BLAKE2B_OUTBYTES)) {
+        sodium_misuse();
+    }
+    if (!key || !keylen || keylen > BLAKE2B_KEYBYTES) {
+        sodium_misuse();
+    }
+    P->digest_length = outlen;
+    P->key_length    = keylen;
+    P->fanout        = 1;
+    P->depth         = 1;
+    STORE32_LE(P->leaf_length, 0);
+    STORE64_LE(P->node_offset, 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) {
+        sodium_misuse();
+    }
+    {
+        uint8_t block[BLAKE2B_BLOCKBYTES];
+        memset(block, 0, BLAKE2B_BLOCKBYTES);
+        memcpy(block, key, keylen); /* keylen cannot be 0 */
+        blake2b_update(S, block, BLAKE2B_BLOCKBYTES);
+        sodium_memzero(block, BLAKE2B_BLOCKBYTES); /* Burn the key from stack */
+    }
+    return 0;
+}
+
+int
+blake2b_init_key_salt_personal(blake2b_state *S, const uint8_t outlen,
+                               const void *key, const uint8_t keylen,
+                               const void *salt, const void *personal)
+{
+    blake2b_param P[1];
+
+    if ((!outlen) || (outlen > BLAKE2B_OUTBYTES)) {
+        sodium_misuse();
+    }
+    if (!key || !keylen || keylen > BLAKE2B_KEYBYTES) {
+        sodium_misuse();
+    }
+    P->digest_length = outlen;
+    P->key_length    = keylen;
+    P->fanout        = 1;
+    P->depth         = 1;
+    STORE32_LE(P->leaf_length, 0);
+    STORE64_LE(P->node_offset, 0);
+    P->node_depth   = 0;
+    P->inner_length = 0;
+    memset(P->reserved, 0, sizeof(P->reserved));
+    if (salt != NULL) {
+        blake2b_param_set_salt(P, (const uint8_t *) salt);
+    } else {
+        memset(P->salt, 0, sizeof(P->salt));
+    }
+    if (personal != NULL) {
+        blake2b_param_set_personal(P, (const uint8_t *) personal);
+    } else {
+        memset(P->personal, 0, sizeof(P->personal));
+    }
+
+    if (blake2b_init_param(S, P) < 0) {
+        sodium_misuse();
+    }
+    {
+        uint8_t block[BLAKE2B_BLOCKBYTES];
+        memset(block, 0, BLAKE2B_BLOCKBYTES);
+        memcpy(block, key, keylen); /* keylen cannot be 0 */
+        blake2b_update(S, block, BLAKE2B_BLOCKBYTES);
+        sodium_memzero(block, BLAKE2B_BLOCKBYTES); /* Burn the key from stack */
+    }
+    return 0;
+}
+
+/* inlen now in bytes */
+int
+blake2b_update(blake2b_state *S, const uint8_t *in, uint64_t inlen)
+{
+    while (inlen > 0) {
+        size_t left = S->buflen;
+        size_t fill = 2 * BLAKE2B_BLOCKBYTES - left;
+
+        if (inlen > fill) {
+            memcpy(S->buf + left, in, fill); /* Fill buffer */
+            S->buflen += fill;
+            blake2b_increment_counter(S, BLAKE2B_BLOCKBYTES);
+            blake2b_compress(S, S->buf); /* Compress */
+            memcpy(S->buf, S->buf + BLAKE2B_BLOCKBYTES,
+                   BLAKE2B_BLOCKBYTES); /* Shift buffer left */
+            S->buflen -= BLAKE2B_BLOCKBYTES;
+            in += fill;
+            inlen -= fill;
+        } else /* inlen <= fill */
+        {
+            memcpy(S->buf + left, in, inlen);
+            S->buflen += inlen; /* Be lazy, do not compress */
+            in += inlen;
+            inlen -= inlen;
+        }
+    }
+
+    return 0;
+}
+
+int
+blake2b_final(blake2b_state *S, uint8_t *out, uint8_t outlen)
+{
+    unsigned char buffer[BLAKE2B_OUTBYTES];
+
+    if (!outlen || outlen > BLAKE2B_OUTBYTES) {
+        sodium_misuse();
+    }
+    if (blake2b_is_lastblock(S)) {
+        return -1;
+    }
+    if (S->buflen > BLAKE2B_BLOCKBYTES) {
+        blake2b_increment_counter(S, BLAKE2B_BLOCKBYTES);
+        blake2b_compress(S, S->buf);
+        S->buflen -= BLAKE2B_BLOCKBYTES;
+        assert(S->buflen <= BLAKE2B_BLOCKBYTES);
+        memcpy(S->buf, S->buf + BLAKE2B_BLOCKBYTES, S->buflen);
+    }
+
+    blake2b_increment_counter(S, S->buflen);
+    blake2b_set_lastblock(S);
+    memset(S->buf + S->buflen, 0,
+           2 * BLAKE2B_BLOCKBYTES - S->buflen); /* Padding */
+    blake2b_compress(S, S->buf);
+
+    COMPILER_ASSERT(sizeof buffer == 64U);
+    STORE64_LE(buffer + 8 * 0, S->h[0]);
+    STORE64_LE(buffer + 8 * 1, S->h[1]);
+    STORE64_LE(buffer + 8 * 2, S->h[2]);
+    STORE64_LE(buffer + 8 * 3, S->h[3]);
+    STORE64_LE(buffer + 8 * 4, S->h[4]);
+    STORE64_LE(buffer + 8 * 5, S->h[5]);
+    STORE64_LE(buffer + 8 * 6, S->h[6]);
+    STORE64_LE(buffer + 8 * 7, S->h[7]);
+    memcpy(out, buffer, outlen); /* outlen <= BLAKE2B_OUTBYTES (64) */
+
+    sodium_memzero(S->h, sizeof S->h);
+    sodium_memzero(S->buf, sizeof S->buf);
+
+    return 0;
+}
+
+/* inlen, at least, should be uint64_t. Others can be size_t. */
+int
+blake2b(uint8_t *out, const void *in, const void *key, const uint8_t outlen,
+        const uint64_t inlen, uint8_t keylen)
+{
+    blake2b_state S[1];
+
+    /* Verify parameters */
+    if (NULL == in && inlen > 0) {
+        sodium_misuse();
+    }
+    if (NULL == out) {
+        sodium_misuse();
+    }
+    if (!outlen || outlen > BLAKE2B_OUTBYTES) {
+        sodium_misuse();
+    }
+    if (NULL == key && keylen > 0) {
+        sodium_misuse();
+    }
+    if (keylen > BLAKE2B_KEYBYTES) {
+        sodium_misuse();
+    }
+    if (keylen > 0) {
+        if (blake2b_init_key(S, outlen, key, keylen) < 0) {
+            sodium_misuse();
+        }
+    } else {
+        if (blake2b_init(S, outlen) < 0) {
+            sodium_misuse();
+        }
+    }
+
+    blake2b_update(S, (const uint8_t *) in, inlen);
+    blake2b_final(S, out, outlen);
+    return 0;
+}
+
+int
+blake2b_salt_personal(uint8_t *out, const void *in, const void *key,
+                      const uint8_t outlen, const uint64_t inlen,
+                      uint8_t keylen, const void *salt, const void *personal)
+{
+    blake2b_state S[1];
+
+    /* Verify parameters */
+    if (NULL == in && inlen > 0) {
+        sodium_misuse();
+    }
+    if (NULL == out) {
+        sodium_misuse();
+    }
+    if (!outlen || outlen > BLAKE2B_OUTBYTES) {
+        sodium_misuse();
+    }
+    if (NULL == key && keylen > 0) {
+        sodium_misuse();
+    }
+    if (keylen > BLAKE2B_KEYBYTES) {
+        sodium_misuse();
+    }
+    if (keylen > 0) {
+        if (blake2b_init_key_salt_personal(S, outlen, key, keylen, salt,
+                                           personal) < 0) {
+            sodium_misuse();
+        }
+    } else {
+        if (blake2b_init_salt_personal(S, outlen, salt, personal) < 0) {
+            sodium_misuse();
+        }
+    }
+
+    blake2b_update(S, (const uint8_t *) in, inlen);
+    blake2b_final(S, out, outlen);
+    return 0;
+}
+
+int
+blake2b_pick_best_implementation(void)
+{
+/* LCOV_EXCL_START */
+#if defined(HAVE_AVX2INTRIN_H) && defined(HAVE_TMMINTRIN_H) && \
+    defined(HAVE_SMMINTRIN_H)
+    if (sodium_runtime_has_avx2()) {
+        blake2b_compress = blake2b_compress_avx2;
+        return 0;
+    }
+#endif
+#if defined(HAVE_EMMINTRIN_H) && defined(HAVE_TMMINTRIN_H) && \
+    defined(HAVE_SMMINTRIN_H)
+    if (sodium_runtime_has_sse41()) {
+        blake2b_compress = blake2b_compress_sse41;
+        return 0;
+    }
+#endif
+#if defined(HAVE_EMMINTRIN_H) && defined(HAVE_TMMINTRIN_H)
+    if (sodium_runtime_has_ssse3()) {
+        blake2b_compress = blake2b_compress_ssse3;
+        return 0;
+    }
+#endif
+    blake2b_compress = blake2b_compress_ref;
+
+    return 0;
+    /* LCOV_EXCL_STOP */
+}