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24 lines
498 B
C
24 lines
498 B
C
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/*
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version 20080913
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D. J. Bernstein
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Public domain.
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*/
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#include "crypto_core_hsalsa20.h"
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#include "crypto_stream_salsa20.h"
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#include "crypto_stream.h"
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static const unsigned char sigma[16] = "expand 32-byte k";
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int crypto_stream_xor(
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unsigned char *c,
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const unsigned char *m,unsigned long long mlen,
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const unsigned char *n,
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const unsigned char *k
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)
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{
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unsigned char subkey[32];
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crypto_core_hsalsa20(subkey,n,k,sigma);
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return crypto_stream_salsa20_xor(c,m,mlen,n + 16,subkey);
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}
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