Sha256: b510fc0c46ad51393606a2a2e2e7fac6856f10c09395048ba208f95cc48e20a3
Contents?: true
Size: 872 Bytes
Versions: 15
Compression:
Stored size: 872 Bytes
Contents
#include "api.h"
#include "crypto_onetimeauth_poly1305.h"
#include "crypto_stream_xsalsa20.h"
int crypto_secretbox(
unsigned char *c,
const unsigned char *m,unsigned long long mlen,
const unsigned char *n,
const unsigned char *k
)
{
int i;
if (mlen < 32) return -1;
crypto_stream_xsalsa20_xor(c,m,mlen,n,k);
crypto_onetimeauth_poly1305(c + 16,c + 32,mlen - 32,c);
for (i = 0;i < 16;++i) c[i] = 0;
return 0;
}
int crypto_secretbox_open(
unsigned char *m,
const unsigned char *c,unsigned long long clen,
const unsigned char *n,
const unsigned char *k
)
{
int i;
unsigned char subkey[32];
if (clen < 32) return -1;
crypto_stream_xsalsa20(subkey,32,n,k);
if (crypto_onetimeauth_poly1305_verify(c + 16,c + 32,clen - 32,subkey) != 0) return -1;
crypto_stream_xsalsa20_xor(m,c,clen,n,k);
for (i = 0;i < 32;++i) m[i] = 0;
return 0;
}
Version data entries
15 entries across 15 versions & 1 rubygems