static const char*
selftest (void)
{
SALSA20_context_t ctx;
byte scratch[8+1];
static byte key_1[] =
{ 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const byte nonce_1[] =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const byte plaintext_1[] =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const byte ciphertext_1[] =
{ 0xE3, 0xBE, 0x8F, 0xDD, 0x8B, 0xEC, 0xA2, 0xE3};
salsa20_setkey (&ctx, key_1, sizeof key_1);
salsa20_setiv (&ctx, nonce_1, sizeof nonce_1);
scratch[8] = 0;
salsa20_encrypt_stream (&ctx, scratch, plaintext_1, sizeof plaintext_1);
if (memcmp (scratch, ciphertext_1, sizeof ciphertext_1))
return "Salsa20 encryption test 1 failed.";
if (scratch[8])
return "Salsa20 wrote too much.";
salsa20_setkey( &ctx, key_1, sizeof(key_1));
salsa20_setiv (&ctx, nonce_1, sizeof nonce_1);
salsa20_encrypt_stream (&ctx, scratch, scratch, sizeof plaintext_1);
if (memcmp (scratch, plaintext_1, sizeof plaintext_1))
return "Salsa20 decryption test 1 failed.";
return NULL;
}
static const char*
selftest (void)
{
SALSA20_context_t ctx;
byte scratch[8+1];
byte buf[256+64+4];
int i;
static byte key_1[] =
{ 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const byte nonce_1[] =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const byte plaintext_1[] =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const byte ciphertext_1[] =
{ 0xE3, 0xBE, 0x8F, 0xDD, 0x8B, 0xEC, 0xA2, 0xE3};
salsa20_setkey (&ctx, key_1, sizeof key_1);
salsa20_setiv (&ctx, nonce_1, sizeof nonce_1);
scratch[8] = 0;
salsa20_encrypt_stream (&ctx, scratch, plaintext_1, sizeof plaintext_1);
if (memcmp (scratch, ciphertext_1, sizeof ciphertext_1))
return "Salsa20 encryption test 1 failed.";
if (scratch[8])
return "Salsa20 wrote too much.";
salsa20_setkey( &ctx, key_1, sizeof(key_1));
salsa20_setiv (&ctx, nonce_1, sizeof nonce_1);
salsa20_encrypt_stream (&ctx, scratch, scratch, sizeof plaintext_1);
if (memcmp (scratch, plaintext_1, sizeof plaintext_1))
return "Salsa20 decryption test 1 failed.";
for (i = 0; i < sizeof buf; i++)
buf[i] = i;
salsa20_setkey (&ctx, key_1, sizeof key_1);
salsa20_setiv (&ctx, nonce_1, sizeof nonce_1);
/*encrypt*/
salsa20_encrypt_stream (&ctx, buf, buf, sizeof buf);
/*decrypt*/
salsa20_setkey (&ctx, key_1, sizeof key_1);
salsa20_setiv (&ctx, nonce_1, sizeof nonce_1);
salsa20_encrypt_stream (&ctx, buf, buf, 1);
salsa20_encrypt_stream (&ctx, buf+1, buf+1, (sizeof buf)-1-1);
salsa20_encrypt_stream (&ctx, buf+(sizeof buf)-1, buf+(sizeof buf)-1, 1);
for (i = 0; i < sizeof buf; i++)
if (buf[i] != (byte)i)
return "Salsa20 encryption test 2 failed.";
return NULL;
}