diff options
Diffstat (limited to 'external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_stream/salsa208/ref/xor_salsa208.c')
-rw-r--r-- | external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_stream/salsa208/ref/xor_salsa208.c | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_stream/salsa208/ref/xor_salsa208.c b/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_stream/salsa208/ref/xor_salsa208.c deleted file mode 100644 index de0eae9f..00000000 --- a/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_stream/salsa208/ref/xor_salsa208.c +++ /dev/null @@ -1,60 +0,0 @@ -/* -version 20140420 -D. J. Bernstein -Public domain. -*/ - -#include "api.h" -#include "crypto_core_salsa208.h" -#include "utils.h" - -typedef unsigned int uint32; - -static const unsigned char sigma[16] = { - 'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k' -}; - -int crypto_stream_xor( - unsigned char *c, - const unsigned char *m,unsigned long long mlen, - const unsigned char *n, - const unsigned char *k -) -{ - unsigned char in[16]; - unsigned char block[64]; - unsigned char kcopy[32]; - unsigned int i; - unsigned int u; - - if (!mlen) return 0; - - for (i = 0;i < 32;++i) kcopy[i] = k[i]; - for (i = 0;i < 8;++i) in[i] = n[i]; - for (i = 8;i < 16;++i) in[i] = 0; - - while (mlen >= 64) { - crypto_core_salsa208(block,in,kcopy,sigma); - for (i = 0;i < 64;++i) c[i] = m[i] ^ block[i]; - - u = 1; - for (i = 8;i < 16;++i) { - u += (unsigned int) in[i]; - in[i] = u; - u >>= 8; - } - - mlen -= 64; - c += 64; - m += 64; - } - - if (mlen) { - crypto_core_salsa208(block,in,kcopy,sigma); - for (i = 0;i < (unsigned int) mlen;++i) c[i] = m[i] ^ block[i]; - } - sodium_memzero(block, sizeof block); - sodium_memzero(kcopy, sizeof kcopy); - - return 0; -} |