diff options
author | Dan Klein <danklei@cisco.com> | 2015-08-24 13:22:48 +0300 |
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committer | Dan Klein <danklei@cisco.com> | 2015-08-24 13:22:48 +0300 |
commit | dab741a80699f86e86c91718872a052cca9bbb25 (patch) | |
tree | 1959c4a2cea440170a5113dcb067796cb20ffb64 /external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_scalarmult/curve25519/ref10/fe_cswap_curve25519_ref10.c | |
parent | d3f26ece7d4383df0b22fe9c3cb3e695381ec737 (diff) |
Fixed dependencies of Control Plane to use external_lib sources
Diffstat (limited to 'external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_scalarmult/curve25519/ref10/fe_cswap_curve25519_ref10.c')
-rw-r--r-- | external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_scalarmult/curve25519/ref10/fe_cswap_curve25519_ref10.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_scalarmult/curve25519/ref10/fe_cswap_curve25519_ref10.c b/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_scalarmult/curve25519/ref10/fe_cswap_curve25519_ref10.c new file mode 100644 index 00000000..f460674e --- /dev/null +++ b/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_scalarmult/curve25519/ref10/fe_cswap_curve25519_ref10.c @@ -0,0 +1,77 @@ +#include "fe.h" + +#ifndef HAVE_TI_MODE + +/* +Replace (f,g) with (g,f) if b == 1; +replace (f,g) with (f,g) if b == 0. + +Preconditions: b in {0,1}. +*/ + +void fe_cswap(fe f,fe g,unsigned int b) +{ + crypto_int32 f0 = f[0]; + crypto_int32 f1 = f[1]; + crypto_int32 f2 = f[2]; + crypto_int32 f3 = f[3]; + crypto_int32 f4 = f[4]; + crypto_int32 f5 = f[5]; + crypto_int32 f6 = f[6]; + crypto_int32 f7 = f[7]; + crypto_int32 f8 = f[8]; + crypto_int32 f9 = f[9]; + crypto_int32 g0 = g[0]; + crypto_int32 g1 = g[1]; + crypto_int32 g2 = g[2]; + crypto_int32 g3 = g[3]; + crypto_int32 g4 = g[4]; + crypto_int32 g5 = g[5]; + crypto_int32 g6 = g[6]; + crypto_int32 g7 = g[7]; + crypto_int32 g8 = g[8]; + crypto_int32 g9 = g[9]; + crypto_int32 x0 = f0 ^ g0; + crypto_int32 x1 = f1 ^ g1; + crypto_int32 x2 = f2 ^ g2; + crypto_int32 x3 = f3 ^ g3; + crypto_int32 x4 = f4 ^ g4; + crypto_int32 x5 = f5 ^ g5; + crypto_int32 x6 = f6 ^ g6; + crypto_int32 x7 = f7 ^ g7; + crypto_int32 x8 = f8 ^ g8; + crypto_int32 x9 = f9 ^ g9; + b = -b; + x0 &= b; + x1 &= b; + x2 &= b; + x3 &= b; + x4 &= b; + x5 &= b; + x6 &= b; + x7 &= b; + x8 &= b; + x9 &= b; + f[0] = f0 ^ x0; + f[1] = f1 ^ x1; + f[2] = f2 ^ x2; + f[3] = f3 ^ x3; + f[4] = f4 ^ x4; + f[5] = f5 ^ x5; + f[6] = f6 ^ x6; + f[7] = f7 ^ x7; + f[8] = f8 ^ x8; + f[9] = f9 ^ x9; + g[0] = g0 ^ x0; + g[1] = g1 ^ x1; + g[2] = g2 ^ x2; + g[3] = g3 ^ x3; + g[4] = g4 ^ x4; + g[5] = g5 ^ x5; + g[6] = g6 ^ x6; + g[7] = g7 ^ x7; + g[8] = g8 ^ x8; + g[9] = g9 ^ x9; +} + +#endif |