preparing to build tox from sources

1 files changed, 399 insertions, 0 deletions

diff --git a/libs/libsodium/src/crypto_aead/chacha20poly1305/sodium/aead_chacha20poly1305.c b/libs/libsodium/src/crypto_aead/chacha20poly1305/sodium/aead_chacha20poly1305.c
new file mode 100644
index 0000000000..c79407a185
--- /dev/null
+++ b/libs/libsodium/src/crypto_aead/chacha20poly1305/sodium/aead_chacha20poly1305.c
@@ -0,0 +1,399 @@
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+
+#include "core.h"
+#include "crypto_aead_chacha20poly1305.h"
+#include "crypto_onetimeauth_poly1305.h"
+#include "crypto_stream_chacha20.h"
+#include "crypto_verify_16.h"
+#include "randombytes.h"
+#include "utils.h"
+
+#include "private/common.h"
+
+static const unsigned char _pad0[16] = { 0 };
+
+int
+crypto_aead_chacha20poly1305_encrypt_detached(unsigned char *c,
+                                              unsigned char *mac,
+                                              unsigned long long *maclen_p,
+                                              const unsigned char *m,
+                                              unsigned long long mlen,
+                                              const unsigned char *ad,
+                                              unsigned long long adlen,
+                                              const unsigned char *nsec,
+                                              const unsigned char *npub,
+                                              const unsigned char *k)
+{
+    crypto_onetimeauth_poly1305_state state;
+    unsigned char                     block0[64U];
+    unsigned char                     slen[8U];
+
+    (void) nsec;
+    crypto_stream_chacha20(block0, sizeof block0, npub, k);
+    crypto_onetimeauth_poly1305_init(&state, block0);
+    sodium_memzero(block0, sizeof block0);
+
+    crypto_onetimeauth_poly1305_update(&state, ad, adlen);
+    STORE64_LE(slen, (uint64_t) adlen);
+    crypto_onetimeauth_poly1305_update(&state, slen, sizeof slen);
+
+    crypto_stream_chacha20_xor_ic(c, m, mlen, npub, 1U, k);
+
+    crypto_onetimeauth_poly1305_update(&state, c, mlen);
+    STORE64_LE(slen, (uint64_t) mlen);
+    crypto_onetimeauth_poly1305_update(&state, slen, sizeof slen);
+
+    crypto_onetimeauth_poly1305_final(&state, mac);
+    sodium_memzero(&state, sizeof state);
+
+    if (maclen_p != NULL) {
+        *maclen_p = crypto_aead_chacha20poly1305_ABYTES;
+    }
+    return 0;
+}
+
+int
+crypto_aead_chacha20poly1305_encrypt(unsigned char *c,
+                                     unsigned long long *clen_p,
+                                     const unsigned char *m,
+                                     unsigned long long mlen,
+                                     const unsigned char *ad,
+                                     unsigned long long adlen,
+                                     const unsigned char *nsec,
+                                     const unsigned char *npub,
+                                     const unsigned char *k)
+{
+    unsigned long long clen = 0ULL;
+    int                ret;
+
+    if (mlen > crypto_aead_chacha20poly1305_MESSAGEBYTES_MAX) {
+        sodium_misuse();
+    }
+    ret = crypto_aead_chacha20poly1305_encrypt_detached(c,
+                                                        c + mlen, NULL,
+                                                        m, mlen,
+                                                        ad, adlen,
+                                                        nsec, npub, k);
+    if (clen_p != NULL) {
+        if (ret == 0) {
+            clen = mlen + crypto_aead_chacha20poly1305_ABYTES;
+        }
+        *clen_p = clen;
+    }
+    return ret;
+}
+
+int
+crypto_aead_chacha20poly1305_ietf_encrypt_detached(unsigned char *c,
+                                                   unsigned char *mac,
+                                                   unsigned long long *maclen_p,
+                                                   const unsigned char *m,
+                                                   unsigned long long mlen,
+                                                   const unsigned char *ad,
+                                                   unsigned long long adlen,
+                                                   const unsigned char *nsec,
+                                                   const unsigned char *npub,
+                                                   const unsigned char *k)
+{
+    crypto_onetimeauth_poly1305_state state;
+    unsigned char                     block0[64U];
+    unsigned char                     slen[8U];
+
+    (void) nsec;
+    crypto_stream_chacha20_ietf(block0, sizeof block0, npub, k);
+    crypto_onetimeauth_poly1305_init(&state, block0);
+    sodium_memzero(block0, sizeof block0);
+
+    crypto_onetimeauth_poly1305_update(&state, ad, adlen);
+    crypto_onetimeauth_poly1305_update(&state, _pad0, (0x10 - adlen) & 0xf);
+
+    crypto_stream_chacha20_ietf_xor_ic(c, m, mlen, npub, 1U, k);
+
+    crypto_onetimeauth_poly1305_update(&state, c, mlen);
+    crypto_onetimeauth_poly1305_update(&state, _pad0, (0x10 - mlen) & 0xf);
+
+    STORE64_LE(slen, (uint64_t) adlen);
+    crypto_onetimeauth_poly1305_update(&state, slen, sizeof slen);
+
+    STORE64_LE(slen, (uint64_t) mlen);
+    crypto_onetimeauth_poly1305_update(&state, slen, sizeof slen);
+
+    crypto_onetimeauth_poly1305_final(&state, mac);
+    sodium_memzero(&state, sizeof state);
+
+    if (maclen_p != NULL) {
+        *maclen_p = crypto_aead_chacha20poly1305_ietf_ABYTES;
+    }
+    return 0;
+}
+
+int
+crypto_aead_chacha20poly1305_ietf_encrypt(unsigned char *c,
+                                          unsigned long long *clen_p,
+                                          const unsigned char *m,
+                                          unsigned long long mlen,
+                                          const unsigned char *ad,
+                                          unsigned long long adlen,
+                                          const unsigned char *nsec,
+                                          const unsigned char *npub,
+                                          const unsigned char *k)
+{
+    unsigned long long clen = 0ULL;
+    int                ret;
+
+    if (mlen > crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX) {
+        sodium_misuse();
+    }
+    ret = crypto_aead_chacha20poly1305_ietf_encrypt_detached(c,
+                                                             c + mlen, NULL,
+                                                             m, mlen,
+                                                             ad, adlen,
+                                                             nsec, npub, k);
+    if (clen_p != NULL) {
+        if (ret == 0) {
+            clen = mlen + crypto_aead_chacha20poly1305_ietf_ABYTES;
+        }
+        *clen_p = clen;
+    }
+    return ret;
+}
+
+int
+crypto_aead_chacha20poly1305_decrypt_detached(unsigned char *m,
+                                              unsigned char *nsec,
+                                              const unsigned char *c,
+                                              unsigned long long clen,
+                                              const unsigned char *mac,
+                                              const unsigned char *ad,
+                                              unsigned long long adlen,
+                                              const unsigned char *npub,
+                                              const unsigned char *k)
+{
+    crypto_onetimeauth_poly1305_state state;
+    unsigned char                     block0[64U];
+    unsigned char                     slen[8U];
+    unsigned char                     computed_mac[crypto_aead_chacha20poly1305_ABYTES];
+    unsigned long long                mlen;
+    int                               ret;
+
+    (void) nsec;
+    crypto_stream_chacha20(block0, sizeof block0, npub, k);
+    crypto_onetimeauth_poly1305_init(&state, block0);
+    sodium_memzero(block0, sizeof block0);
+
+    crypto_onetimeauth_poly1305_update(&state, ad, adlen);
+    STORE64_LE(slen, (uint64_t) adlen);
+    crypto_onetimeauth_poly1305_update(&state, slen, sizeof slen);
+
+    mlen = clen;
+    crypto_onetimeauth_poly1305_update(&state, c, mlen);
+    STORE64_LE(slen, (uint64_t) mlen);
+    crypto_onetimeauth_poly1305_update(&state, slen, sizeof slen);
+
+    crypto_onetimeauth_poly1305_final(&state, computed_mac);
+    sodium_memzero(&state, sizeof state);
+
+    COMPILER_ASSERT(sizeof computed_mac == 16U);
+    ret = crypto_verify_16(computed_mac, mac);
+    sodium_memzero(computed_mac, sizeof computed_mac);
+    if (m == NULL) {
+        return ret;
+    }
+    if (ret != 0) {
+        memset(m, 0, mlen);
+        return -1;
+    }
+    crypto_stream_chacha20_xor_ic(m, c, mlen, npub, 1U, k);
+
+    return 0;
+}
+
+int
+crypto_aead_chacha20poly1305_decrypt(unsigned char *m,
+                                     unsigned long long *mlen_p,
+                                     unsigned char *nsec,
+                                     const unsigned char *c,
+                                     unsigned long long clen,
+                                     const unsigned char *ad,
+                                     unsigned long long adlen,
+                                     const unsigned char *npub,
+                                     const unsigned char *k)
+{
+    unsigned long long mlen = 0ULL;
+    int                ret = -1;
+
+    if (clen >= crypto_aead_chacha20poly1305_ABYTES) {
+        ret = crypto_aead_chacha20poly1305_decrypt_detached
+            (m, nsec,
+             c, clen - crypto_aead_chacha20poly1305_ABYTES,
+             c + clen - crypto_aead_chacha20poly1305_ABYTES,
+             ad, adlen, npub, k);
+    }
+    if (mlen_p != NULL) {
+        if (ret == 0) {
+            mlen = clen - crypto_aead_chacha20poly1305_ABYTES;
+        }
+        *mlen_p = mlen;
+    }
+    return ret;
+}
+
+int
+crypto_aead_chacha20poly1305_ietf_decrypt_detached(unsigned char *m,
+                                                   unsigned char *nsec,
+                                                   const unsigned char *c,
+                                                   unsigned long long clen,
+                                                   const unsigned char *mac,
+                                                   const unsigned char *ad,
+                                                   unsigned long long adlen,
+                                                   const unsigned char *npub,
+                                                   const unsigned char *k)
+{
+    crypto_onetimeauth_poly1305_state state;
+    unsigned char                     block0[64U];
+    unsigned char                     slen[8U];
+    unsigned char                     computed_mac[crypto_aead_chacha20poly1305_ietf_ABYTES];
+    unsigned long long                mlen;
+    int                               ret;
+
+    (void) nsec;
+    crypto_stream_chacha20_ietf(block0, sizeof block0, npub, k);
+    crypto_onetimeauth_poly1305_init(&state, block0);
+    sodium_memzero(block0, sizeof block0);
+
+    crypto_onetimeauth_poly1305_update(&state, ad, adlen);
+    crypto_onetimeauth_poly1305_update(&state, _pad0, (0x10 - adlen) & 0xf);
+
+    mlen = clen;
+    crypto_onetimeauth_poly1305_update(&state, c, mlen);
+    crypto_onetimeauth_poly1305_update(&state, _pad0, (0x10 - mlen) & 0xf);
+
+    STORE64_LE(slen, (uint64_t) adlen);
+    crypto_onetimeauth_poly1305_update(&state, slen, sizeof slen);
+
+    STORE64_LE(slen, (uint64_t) mlen);
+    crypto_onetimeauth_poly1305_update(&state, slen, sizeof slen);
+
+    crypto_onetimeauth_poly1305_final(&state, computed_mac);
+    sodium_memzero(&state, sizeof state);
+
+    COMPILER_ASSERT(sizeof computed_mac == 16U);
+    ret = crypto_verify_16(computed_mac, mac);
+    sodium_memzero(computed_mac, sizeof computed_mac);
+    if (m == NULL) {
+        return ret;
+    }
+    if (ret != 0) {
+        memset(m, 0, mlen);
+        return -1;
+    }
+    crypto_stream_chacha20_ietf_xor_ic(m, c, mlen, npub, 1U, k);
+
+    return 0;
+}
+
+int
+crypto_aead_chacha20poly1305_ietf_decrypt(unsigned char *m,
+                                          unsigned long long *mlen_p,
+                                          unsigned char *nsec,
+                                          const unsigned char *c,
+                                          unsigned long long clen,
+                                          const unsigned char *ad,
+                                          unsigned long long adlen,
+                                          const unsigned char *npub,
+                                          const unsigned char *k)
+{
+    unsigned long long mlen = 0ULL;
+    int                ret = -1;
+
+    if (clen >= crypto_aead_chacha20poly1305_ietf_ABYTES) {
+        ret = crypto_aead_chacha20poly1305_ietf_decrypt_detached
+            (m, nsec,
+             c, clen - crypto_aead_chacha20poly1305_ietf_ABYTES,
+             c + clen - crypto_aead_chacha20poly1305_ietf_ABYTES,
+             ad, adlen, npub, k);
+    }
+    if (mlen_p != NULL) {
+        if (ret == 0) {
+            mlen = clen - crypto_aead_chacha20poly1305_ietf_ABYTES;
+        }
+        *mlen_p = mlen;
+    }
+    return ret;
+}
+
+size_t
+crypto_aead_chacha20poly1305_ietf_keybytes(void)
+{
+    return crypto_aead_chacha20poly1305_ietf_KEYBYTES;
+}
+
+size_t
+crypto_aead_chacha20poly1305_ietf_npubbytes(void)
+{
+    return crypto_aead_chacha20poly1305_ietf_NPUBBYTES;
+}
+
+size_t
+crypto_aead_chacha20poly1305_ietf_nsecbytes(void)
+{
+    return crypto_aead_chacha20poly1305_ietf_NSECBYTES;
+}
+
+size_t
+crypto_aead_chacha20poly1305_ietf_abytes(void)
+{
+    return crypto_aead_chacha20poly1305_ietf_ABYTES;
+}
+
+size_t
+crypto_aead_chacha20poly1305_ietf_messagebytes_max(void)
+{
+    return crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX;
+}
+
+void
+crypto_aead_chacha20poly1305_ietf_keygen(unsigned char k[crypto_aead_chacha20poly1305_ietf_KEYBYTES])
+{
+    randombytes_buf(k, crypto_aead_chacha20poly1305_ietf_KEYBYTES);
+}
+
+size_t
+crypto_aead_chacha20poly1305_keybytes(void)
+{
+    return crypto_aead_chacha20poly1305_KEYBYTES;
+}
+
+size_t
+crypto_aead_chacha20poly1305_npubbytes(void)
+{
+    return crypto_aead_chacha20poly1305_NPUBBYTES;
+}
+
+size_t
+crypto_aead_chacha20poly1305_nsecbytes(void)
+{
+    return crypto_aead_chacha20poly1305_NSECBYTES;
+}
+
+size_t
+crypto_aead_chacha20poly1305_abytes(void)
+{
+    return crypto_aead_chacha20poly1305_ABYTES;
+}
+
+size_t
+crypto_aead_chacha20poly1305_messagebytes_max(void)
+{
+    return crypto_aead_chacha20poly1305_MESSAGEBYTES_MAX;
+}
+
+void
+crypto_aead_chacha20poly1305_keygen(unsigned char k[crypto_aead_chacha20poly1305_KEYBYTES])
+{
+    randombytes_buf(k, crypto_aead_chacha20poly1305_KEYBYTES);
+}