From 74d69ac10b8bac625918b82190c9647434b07d16 Mon Sep 17 00:00:00 2001 From: woodser Date: Wed, 4 Dec 2019 12:39:23 -0500 Subject: [PATCH] add ./external/libsodium/ --- .../include/sodium/crypto_verify_16.h | 23 +++++ .../include/sodium/crypto_verify_32.h | 23 +++++ .../include/sodium/crypto_verify_64.h | 23 +++++ external/libsodium/src/crypto_verify/verify.c | 98 +++++++++++++++++++ 4 files changed, 167 insertions(+) create mode 100644 external/libsodium/include/sodium/crypto_verify_16.h create mode 100644 external/libsodium/include/sodium/crypto_verify_32.h create mode 100644 external/libsodium/include/sodium/crypto_verify_64.h create mode 100644 external/libsodium/src/crypto_verify/verify.c diff --git a/external/libsodium/include/sodium/crypto_verify_16.h b/external/libsodium/include/sodium/crypto_verify_16.h new file mode 100644 index 0000000..5e9eeab --- /dev/null +++ b/external/libsodium/include/sodium/crypto_verify_16.h @@ -0,0 +1,23 @@ +#ifndef crypto_verify_16_H +#define crypto_verify_16_H + +#include +#include "export.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define crypto_verify_16_BYTES 16U +SODIUM_EXPORT +size_t crypto_verify_16_bytes(void); + +SODIUM_EXPORT +int crypto_verify_16(const unsigned char *x, const unsigned char *y) + __attribute__ ((warn_unused_result)); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/external/libsodium/include/sodium/crypto_verify_32.h b/external/libsodium/include/sodium/crypto_verify_32.h new file mode 100644 index 0000000..281b5a1 --- /dev/null +++ b/external/libsodium/include/sodium/crypto_verify_32.h @@ -0,0 +1,23 @@ +#ifndef crypto_verify_32_H +#define crypto_verify_32_H + +#include +#include "export.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define crypto_verify_32_BYTES 32U +SODIUM_EXPORT +size_t crypto_verify_32_bytes(void); + +SODIUM_EXPORT +int crypto_verify_32(const unsigned char *x, const unsigned char *y) + __attribute__ ((warn_unused_result)); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/external/libsodium/include/sodium/crypto_verify_64.h b/external/libsodium/include/sodium/crypto_verify_64.h new file mode 100644 index 0000000..0dc7c30 --- /dev/null +++ b/external/libsodium/include/sodium/crypto_verify_64.h @@ -0,0 +1,23 @@ +#ifndef crypto_verify_64_H +#define crypto_verify_64_H + +#include +#include "export.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define crypto_verify_64_BYTES 64U +SODIUM_EXPORT +size_t crypto_verify_64_bytes(void); + +SODIUM_EXPORT +int crypto_verify_64(const unsigned char *x, const unsigned char *y) + __attribute__ ((warn_unused_result)); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/external/libsodium/src/crypto_verify/verify.c b/external/libsodium/src/crypto_verify/verify.c new file mode 100644 index 0000000..ffebf22 --- /dev/null +++ b/external/libsodium/src/crypto_verify/verify.c @@ -0,0 +1,98 @@ + +#include +#include + +#include "crypto_verify_16.h" +#include "crypto_verify_32.h" +#include "crypto_verify_64.h" + +size_t +crypto_verify_16_bytes(void) +{ + return crypto_verify_16_BYTES; +} + +size_t +crypto_verify_32_bytes(void) +{ + return crypto_verify_32_BYTES; +} + +size_t +crypto_verify_64_bytes(void) +{ + return crypto_verify_64_BYTES; +} + +#if defined(HAVE_EMMINTRIN_H) && defined(__SSE2__) + +# ifdef __GNUC__ +# pragma GCC target("sse2") +# endif +# include + +static inline int +crypto_verify_n(const unsigned char *x_, const unsigned char *y_, + const int n) +{ + const __m128i zero = _mm_setzero_si128(); + volatile __m128i v1, v2, z; + volatile int m; + int i; + + const volatile __m128i *volatile x = + (const volatile __m128i *volatile) (const void *) x_; + const volatile __m128i *volatile y = + (const volatile __m128i *volatile) (const void *) y_; + v1 = _mm_loadu_si128((const __m128i *) &x[0]); + v2 = _mm_loadu_si128((const __m128i *) &y[0]); + z = _mm_xor_si128(v1, v2); + for (i = 1; i < n / 16; i++) { + v1 = _mm_loadu_si128((const __m128i *) &x[i]); + v2 = _mm_loadu_si128((const __m128i *) &y[i]); + z = _mm_or_si128(z, _mm_xor_si128(v1, v2)); + } + m = _mm_movemask_epi8(_mm_cmpeq_epi32(z, zero)); + v1 = zero; v2 = zero; z = zero; + + return (int) (((uint32_t) m + 1U) >> 16) - 1; +} + +#else + +static inline int +crypto_verify_n(const unsigned char *x_, const unsigned char *y_, + const int n) +{ + const volatile unsigned char *volatile x = + (const volatile unsigned char *volatile) x_; + const volatile unsigned char *volatile y = + (const volatile unsigned char *volatile) y_; + volatile uint_fast16_t d = 0U; + int i; + + for (i = 0; i < n; i++) { + d |= x[i] ^ y[i]; + } + return (1 & ((d - 1) >> 8)) - 1; +} + +#endif + +int +crypto_verify_16(const unsigned char *x, const unsigned char *y) +{ + return crypto_verify_n(x, y, crypto_verify_16_BYTES); +} + +int +crypto_verify_32(const unsigned char *x, const unsigned char *y) +{ + return crypto_verify_n(x, y, crypto_verify_32_BYTES); +} + +int +crypto_verify_64(const unsigned char *x, const unsigned char *y) +{ + return crypto_verify_n(x, y, crypto_verify_64_BYTES); +}