From 2e59f9740a29439df7c7a56cf0ae83dec3081d31 Mon Sep 17 00:00:00 2001 From: Micah Anderson Date: Mon, 11 Aug 2014 13:49:21 -0400 Subject: initial import of debian version from mentors --- src/libsodium/crypto_core/hsalsa20/checksum | 1 + .../crypto_core/hsalsa20/core_hsalsa20_api.c | 21 ++++ src/libsodium/crypto_core/hsalsa20/ref2/api.h | 10 ++ .../crypto_core/hsalsa20/ref2/core_hsalsa20.c | 108 +++++++++++++++++++++ 4 files changed, 140 insertions(+) create mode 100644 src/libsodium/crypto_core/hsalsa20/checksum create mode 100644 src/libsodium/crypto_core/hsalsa20/core_hsalsa20_api.c create mode 100644 src/libsodium/crypto_core/hsalsa20/ref2/api.h create mode 100644 src/libsodium/crypto_core/hsalsa20/ref2/core_hsalsa20.c (limited to 'src/libsodium/crypto_core/hsalsa20') diff --git a/src/libsodium/crypto_core/hsalsa20/checksum b/src/libsodium/crypto_core/hsalsa20/checksum new file mode 100644 index 0000000..f67bb2e --- /dev/null +++ b/src/libsodium/crypto_core/hsalsa20/checksum @@ -0,0 +1 @@ +28ebe700b5878570702a68740aa131e6fa907e58a3f6915cd183c6db3f7afd7a diff --git a/src/libsodium/crypto_core/hsalsa20/core_hsalsa20_api.c b/src/libsodium/crypto_core/hsalsa20/core_hsalsa20_api.c new file mode 100644 index 0000000..37c4923 --- /dev/null +++ b/src/libsodium/crypto_core/hsalsa20/core_hsalsa20_api.c @@ -0,0 +1,21 @@ +#include "crypto_core_hsalsa20.h" + +size_t +crypto_core_hsalsa20_outputbytes(void) { + return crypto_core_hsalsa20_OUTPUTBYTES; +} + +size_t +crypto_core_hsalsa20_inputbytes(void) { + return crypto_core_hsalsa20_INPUTBYTES; +} + +size_t +crypto_core_hsalsa20_keybytes(void) { + return crypto_core_hsalsa20_KEYBYTES; +} + +size_t +crypto_core_hsalsa20_constbytes(void) { + return crypto_core_hsalsa20_CONSTBYTES; +} diff --git a/src/libsodium/crypto_core/hsalsa20/ref2/api.h b/src/libsodium/crypto_core/hsalsa20/ref2/api.h new file mode 100644 index 0000000..582cba6 --- /dev/null +++ b/src/libsodium/crypto_core/hsalsa20/ref2/api.h @@ -0,0 +1,10 @@ + +#include "crypto_core_hsalsa20.h" + +#define crypto_core crypto_core_hsalsa20 +#define crypto_core_OUTPUTBYTES crypto_core_hsalsa20_OUTPUTBYTES +#define crypto_core_INPUTBYTES crypto_core_hsalsa20_INPUTBYTES +#define crypto_core_KEYBYTES crypto_core_hsalsa20_KEYBYTES +#define crypto_core_CONSTBYTES crypto_core_hsalsa20_CONSTBYTES +#define crypto_core_IMPLEMENTATION crypto_core_hsalsa20_IMPLEMENTATION +#define crypto_core_VERSION crypto_core_hsalsa20_VERSION diff --git a/src/libsodium/crypto_core/hsalsa20/ref2/core_hsalsa20.c b/src/libsodium/crypto_core/hsalsa20/ref2/core_hsalsa20.c new file mode 100644 index 0000000..c9bd359 --- /dev/null +++ b/src/libsodium/crypto_core/hsalsa20/ref2/core_hsalsa20.c @@ -0,0 +1,108 @@ +/* +version 20080912 +D. J. Bernstein +Public domain. +*/ + +#include "api.h" + +#define ROUNDS 20 + +typedef unsigned int uint32; + +static uint32 rotate(uint32 u,int c) +{ + return (u << c) | (u >> (32 - c)); +} + +static uint32 load_littleendian(const unsigned char *x) +{ + return + (uint32) (x[0]) \ + | (((uint32) (x[1])) << 8) \ + | (((uint32) (x[2])) << 16) \ + | (((uint32) (x[3])) << 24) + ; +} + +static void store_littleendian(unsigned char *x,uint32 u) +{ + x[0] = u; u >>= 8; + x[1] = u; u >>= 8; + x[2] = u; u >>= 8; + x[3] = u; +} + +int crypto_core( + unsigned char *out, + const unsigned char *in, + const unsigned char *k, + const unsigned char *c +) +{ + uint32 x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15; + int i; + + x0 = load_littleendian(c + 0); + x1 = load_littleendian(k + 0); + x2 = load_littleendian(k + 4); + x3 = load_littleendian(k + 8); + x4 = load_littleendian(k + 12); + x5 = load_littleendian(c + 4); + x6 = load_littleendian(in + 0); + x7 = load_littleendian(in + 4); + x8 = load_littleendian(in + 8); + x9 = load_littleendian(in + 12); + x10 = load_littleendian(c + 8); + x11 = load_littleendian(k + 16); + x12 = load_littleendian(k + 20); + x13 = load_littleendian(k + 24); + x14 = load_littleendian(k + 28); + x15 = load_littleendian(c + 12); + + for (i = ROUNDS;i > 0;i -= 2) { + x4 ^= rotate( x0+x12, 7); + x8 ^= rotate( x4+ x0, 9); + x12 ^= rotate( x8+ x4,13); + x0 ^= rotate(x12+ x8,18); + x9 ^= rotate( x5+ x1, 7); + x13 ^= rotate( x9+ x5, 9); + x1 ^= rotate(x13+ x9,13); + x5 ^= rotate( x1+x13,18); + x14 ^= rotate(x10+ x6, 7); + x2 ^= rotate(x14+x10, 9); + x6 ^= rotate( x2+x14,13); + x10 ^= rotate( x6+ x2,18); + x3 ^= rotate(x15+x11, 7); + x7 ^= rotate( x3+x15, 9); + x11 ^= rotate( x7+ x3,13); + x15 ^= rotate(x11+ x7,18); + x1 ^= rotate( x0+ x3, 7); + x2 ^= rotate( x1+ x0, 9); + x3 ^= rotate( x2+ x1,13); + x0 ^= rotate( x3+ x2,18); + x6 ^= rotate( x5+ x4, 7); + x7 ^= rotate( x6+ x5, 9); + x4 ^= rotate( x7+ x6,13); + x5 ^= rotate( x4+ x7,18); + x11 ^= rotate(x10+ x9, 7); + x8 ^= rotate(x11+x10, 9); + x9 ^= rotate( x8+x11,13); + x10 ^= rotate( x9+ x8,18); + x12 ^= rotate(x15+x14, 7); + x13 ^= rotate(x12+x15, 9); + x14 ^= rotate(x13+x12,13); + x15 ^= rotate(x14+x13,18); + } + + store_littleendian(out + 0,x0); + store_littleendian(out + 4,x5); + store_littleendian(out + 8,x10); + store_littleendian(out + 12,x15); + store_littleendian(out + 16,x6); + store_littleendian(out + 20,x7); + store_littleendian(out + 24,x8); + store_littleendian(out + 28,x9); + + return 0; +} -- cgit v1.2.3