diff options
Diffstat (limited to 'libs/libsodium/src/crypto_stream/chacha20/stream_chacha20.c')
-rw-r--r-- | libs/libsodium/src/crypto_stream/chacha20/stream_chacha20.c | 367 |
1 files changed, 184 insertions, 183 deletions
diff --git a/libs/libsodium/src/crypto_stream/chacha20/stream_chacha20.c b/libs/libsodium/src/crypto_stream/chacha20/stream_chacha20.c index c98d60907f..b88f9a50e9 100644 --- a/libs/libsodium/src/crypto_stream/chacha20/stream_chacha20.c +++ b/libs/libsodium/src/crypto_stream/chacha20/stream_chacha20.c @@ -1,183 +1,184 @@ -#include "crypto_stream_chacha20.h" -#include "core.h" -#include "private/common.h" -#include "private/implementations.h" -#include "randombytes.h" -#include "runtime.h" -#include "stream_chacha20.h" - -#include "ref/chacha20_ref.h" -#if defined(HAVE_AVX2INTRIN_H) && defined(HAVE_EMMINTRIN_H) && \ - defined(HAVE_TMMINTRIN_H) && defined(HAVE_SMMINTRIN_H) -# include "dolbeau/chacha20_dolbeau-avx2.h" -#endif -#if defined(HAVE_EMMINTRIN_H) && defined(HAVE_TMMINTRIN_H) -# include "dolbeau/chacha20_dolbeau-ssse3.h" -#endif - -static const crypto_stream_chacha20_implementation *implementation = - &crypto_stream_chacha20_ref_implementation; - -size_t -crypto_stream_chacha20_keybytes(void) { - return crypto_stream_chacha20_KEYBYTES; -} - -size_t -crypto_stream_chacha20_noncebytes(void) { - return crypto_stream_chacha20_NONCEBYTES; -} - -size_t -crypto_stream_chacha20_messagebytes_max(void) -{ - return crypto_stream_chacha20_MESSAGEBYTES_MAX; -} - -size_t -crypto_stream_chacha20_ietf_keybytes(void) { - return crypto_stream_chacha20_ietf_KEYBYTES; -} - -size_t -crypto_stream_chacha20_ietf_noncebytes(void) { - return crypto_stream_chacha20_ietf_NONCEBYTES; -} - -size_t -crypto_stream_chacha20_ietf_messagebytes_max(void) -{ - return crypto_stream_chacha20_ietf_MESSAGEBYTES_MAX; -} - -int -crypto_stream_chacha20(unsigned char *c, unsigned long long clen, - const unsigned char *n, const unsigned char *k) -{ - if (clen > crypto_stream_chacha20_MESSAGEBYTES_MAX) { - sodium_misuse(); - } - return implementation->stream(c, clen, n, k); -} - -int -crypto_stream_chacha20_xor_ic(unsigned char *c, const unsigned char *m, - unsigned long long mlen, - const unsigned char *n, uint64_t ic, - const unsigned char *k) -{ - if (mlen > crypto_stream_chacha20_MESSAGEBYTES_MAX) { - sodium_misuse(); - } - return implementation->stream_xor_ic(c, m, mlen, n, ic, k); -} - -int -crypto_stream_chacha20_xor(unsigned char *c, const unsigned char *m, - unsigned long long mlen, const unsigned char *n, - const unsigned char *k) -{ - if (mlen > crypto_stream_chacha20_MESSAGEBYTES_MAX) { - sodium_misuse(); - } - return implementation->stream_xor_ic(c, m, mlen, n, 0U, k); -} - -int -crypto_stream_chacha20_ietf_ext(unsigned char *c, unsigned long long clen, - const unsigned char *n, const unsigned char *k) -{ - if (clen > crypto_stream_chacha20_MESSAGEBYTES_MAX) { - sodium_misuse(); - } - return implementation->stream_ietf_ext(c, clen, n, k); -} - -int -crypto_stream_chacha20_ietf_ext_xor_ic(unsigned char *c, const unsigned char *m, - unsigned long long mlen, - const unsigned char *n, uint32_t ic, - const unsigned char *k) -{ - if (mlen > crypto_stream_chacha20_MESSAGEBYTES_MAX) { - sodium_misuse(); - } - return implementation->stream_ietf_ext_xor_ic(c, m, mlen, n, ic, k); -} - -static int -crypto_stream_chacha20_ietf_ext_xor(unsigned char *c, const unsigned char *m, - unsigned long long mlen, const unsigned char *n, - const unsigned char *k) -{ - if (mlen > crypto_stream_chacha20_MESSAGEBYTES_MAX) { - sodium_misuse(); - } - return implementation->stream_ietf_ext_xor_ic(c, m, mlen, n, 0U, k); -} - -int -crypto_stream_chacha20_ietf(unsigned char *c, unsigned long long clen, - const unsigned char *n, const unsigned char *k) -{ - if (clen > crypto_stream_chacha20_ietf_MESSAGEBYTES_MAX) { - sodium_misuse(); - } - return crypto_stream_chacha20_ietf_ext(c, clen, n, k); -} - -int -crypto_stream_chacha20_ietf_xor_ic(unsigned char *c, const unsigned char *m, - unsigned long long mlen, - const unsigned char *n, uint32_t ic, - const unsigned char *k) -{ - if ((unsigned long long) ic > - (64ULL * (1ULL << 32)) / 64ULL - (mlen + 63ULL) / 64ULL) { - sodium_misuse(); - } - return crypto_stream_chacha20_ietf_ext_xor_ic(c, m, mlen, n, ic, k); -} - -int -crypto_stream_chacha20_ietf_xor(unsigned char *c, const unsigned char *m, - unsigned long long mlen, const unsigned char *n, - const unsigned char *k) -{ - if (mlen > crypto_stream_chacha20_ietf_MESSAGEBYTES_MAX) { - sodium_misuse(); - } - return crypto_stream_chacha20_ietf_ext_xor(c, m, mlen, n, k); -} - -void -crypto_stream_chacha20_ietf_keygen(unsigned char k[crypto_stream_chacha20_ietf_KEYBYTES]) -{ - randombytes_buf(k, crypto_stream_chacha20_ietf_KEYBYTES); -} - -void -crypto_stream_chacha20_keygen(unsigned char k[crypto_stream_chacha20_KEYBYTES]) -{ - randombytes_buf(k, crypto_stream_chacha20_KEYBYTES); -} - -int -_crypto_stream_chacha20_pick_best_implementation(void) -{ - implementation = &crypto_stream_chacha20_ref_implementation; -#if defined(HAVE_AVX2INTRIN_H) && defined(HAVE_EMMINTRIN_H) && \ - defined(HAVE_TMMINTRIN_H) && defined(HAVE_SMMINTRIN_H) - if (sodium_runtime_has_avx2()) { - implementation = &crypto_stream_chacha20_dolbeau_avx2_implementation; - return 0; - } -#endif -#if defined(HAVE_EMMINTRIN_H) && defined(HAVE_TMMINTRIN_H) - if (sodium_runtime_has_ssse3()) { - implementation = &crypto_stream_chacha20_dolbeau_ssse3_implementation; - return 0; - } -#endif - return 0; -} +#include "crypto_stream_chacha20.h"
+#include "core.h"
+#include "private/chacha20_ietf_ext.h"
+#include "private/common.h"
+#include "private/implementations.h"
+#include "randombytes.h"
+#include "runtime.h"
+#include "stream_chacha20.h"
+
+#include "ref/chacha20_ref.h"
+#if defined(HAVE_AVX2INTRIN_H) && defined(HAVE_EMMINTRIN_H) && \
+ defined(HAVE_TMMINTRIN_H) && defined(HAVE_SMMINTRIN_H)
+# include "dolbeau/chacha20_dolbeau-avx2.h"
+#endif
+#if defined(HAVE_EMMINTRIN_H) && defined(HAVE_TMMINTRIN_H)
+# include "dolbeau/chacha20_dolbeau-ssse3.h"
+#endif
+
+static const crypto_stream_chacha20_implementation *implementation =
+ &crypto_stream_chacha20_ref_implementation;
+
+size_t
+crypto_stream_chacha20_keybytes(void) {
+ return crypto_stream_chacha20_KEYBYTES;
+}
+
+size_t
+crypto_stream_chacha20_noncebytes(void) {
+ return crypto_stream_chacha20_NONCEBYTES;
+}
+
+size_t
+crypto_stream_chacha20_messagebytes_max(void)
+{
+ return crypto_stream_chacha20_MESSAGEBYTES_MAX;
+}
+
+size_t
+crypto_stream_chacha20_ietf_keybytes(void) {
+ return crypto_stream_chacha20_ietf_KEYBYTES;
+}
+
+size_t
+crypto_stream_chacha20_ietf_noncebytes(void) {
+ return crypto_stream_chacha20_ietf_NONCEBYTES;
+}
+
+size_t
+crypto_stream_chacha20_ietf_messagebytes_max(void)
+{
+ return crypto_stream_chacha20_ietf_MESSAGEBYTES_MAX;
+}
+
+int
+crypto_stream_chacha20(unsigned char *c, unsigned long long clen,
+ const unsigned char *n, const unsigned char *k)
+{
+ if (clen > crypto_stream_chacha20_MESSAGEBYTES_MAX) {
+ sodium_misuse();
+ }
+ return implementation->stream(c, clen, n, k);
+}
+
+int
+crypto_stream_chacha20_xor_ic(unsigned char *c, const unsigned char *m,
+ unsigned long long mlen,
+ const unsigned char *n, uint64_t ic,
+ const unsigned char *k)
+{
+ if (mlen > crypto_stream_chacha20_MESSAGEBYTES_MAX) {
+ sodium_misuse();
+ }
+ return implementation->stream_xor_ic(c, m, mlen, n, ic, k);
+}
+
+int
+crypto_stream_chacha20_xor(unsigned char *c, const unsigned char *m,
+ unsigned long long mlen, const unsigned char *n,
+ const unsigned char *k)
+{
+ if (mlen > crypto_stream_chacha20_MESSAGEBYTES_MAX) {
+ sodium_misuse();
+ }
+ return implementation->stream_xor_ic(c, m, mlen, n, 0U, k);
+}
+
+int
+crypto_stream_chacha20_ietf_ext(unsigned char *c, unsigned long long clen,
+ const unsigned char *n, const unsigned char *k)
+{
+ if (clen > crypto_stream_chacha20_MESSAGEBYTES_MAX) {
+ sodium_misuse();
+ }
+ return implementation->stream_ietf_ext(c, clen, n, k);
+}
+
+int
+crypto_stream_chacha20_ietf_ext_xor_ic(unsigned char *c, const unsigned char *m,
+ unsigned long long mlen,
+ const unsigned char *n, uint32_t ic,
+ const unsigned char *k)
+{
+ if (mlen > crypto_stream_chacha20_MESSAGEBYTES_MAX) {
+ sodium_misuse();
+ }
+ return implementation->stream_ietf_ext_xor_ic(c, m, mlen, n, ic, k);
+}
+
+static int
+crypto_stream_chacha20_ietf_ext_xor(unsigned char *c, const unsigned char *m,
+ unsigned long long mlen, const unsigned char *n,
+ const unsigned char *k)
+{
+ if (mlen > crypto_stream_chacha20_MESSAGEBYTES_MAX) {
+ sodium_misuse();
+ }
+ return implementation->stream_ietf_ext_xor_ic(c, m, mlen, n, 0U, k);
+}
+
+int
+crypto_stream_chacha20_ietf(unsigned char *c, unsigned long long clen,
+ const unsigned char *n, const unsigned char *k)
+{
+ if (clen > crypto_stream_chacha20_ietf_MESSAGEBYTES_MAX) {
+ sodium_misuse();
+ }
+ return crypto_stream_chacha20_ietf_ext(c, clen, n, k);
+}
+
+int
+crypto_stream_chacha20_ietf_xor_ic(unsigned char *c, const unsigned char *m,
+ unsigned long long mlen,
+ const unsigned char *n, uint32_t ic,
+ const unsigned char *k)
+{
+ if ((unsigned long long) ic >
+ (64ULL * (1ULL << 32)) / 64ULL - (mlen + 63ULL) / 64ULL) {
+ sodium_misuse();
+ }
+ return crypto_stream_chacha20_ietf_ext_xor_ic(c, m, mlen, n, ic, k);
+}
+
+int
+crypto_stream_chacha20_ietf_xor(unsigned char *c, const unsigned char *m,
+ unsigned long long mlen, const unsigned char *n,
+ const unsigned char *k)
+{
+ if (mlen > crypto_stream_chacha20_ietf_MESSAGEBYTES_MAX) {
+ sodium_misuse();
+ }
+ return crypto_stream_chacha20_ietf_ext_xor(c, m, mlen, n, k);
+}
+
+void
+crypto_stream_chacha20_ietf_keygen(unsigned char k[crypto_stream_chacha20_ietf_KEYBYTES])
+{
+ randombytes_buf(k, crypto_stream_chacha20_ietf_KEYBYTES);
+}
+
+void
+crypto_stream_chacha20_keygen(unsigned char k[crypto_stream_chacha20_KEYBYTES])
+{
+ randombytes_buf(k, crypto_stream_chacha20_KEYBYTES);
+}
+
+int
+_crypto_stream_chacha20_pick_best_implementation(void)
+{
+ implementation = &crypto_stream_chacha20_ref_implementation;
+#if defined(HAVE_AVX2INTRIN_H) && defined(HAVE_EMMINTRIN_H) && \
+ defined(HAVE_TMMINTRIN_H) && defined(HAVE_SMMINTRIN_H)
+ if (sodium_runtime_has_avx2()) {
+ implementation = &crypto_stream_chacha20_dolbeau_avx2_implementation;
+ return 0;
+ }
+#endif
+#if defined(HAVE_EMMINTRIN_H) && defined(HAVE_TMMINTRIN_H)
+ if (sodium_runtime_has_ssse3()) {
+ implementation = &crypto_stream_chacha20_dolbeau_ssse3_implementation;
+ return 0;
+ }
+#endif
+ return 0;
+}
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