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Code Issues Releases Wiki Activity

comment for clarifying table of DH sizes

pull/284/head
Jacob Barthelmeh 2016-02-01 17:11:01 -07:00
parent 9a5ad356a6
commit cad6a08f10
1 changed files with 5 additions and 2 deletions
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7
wolfcrypt/src/dh.c
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@ -107,8 +107,11 @@ static int GeneratePrivate(DhKey* key, WC_RNG* rng, byte* priv, word32* privSz)
int ret;
word32 sz = mp_unsigned_bin_size(&key->p);
/* predetermined values that operation would return for size */
WOLFSSL_DH_ROUND(sz); /* if using fixed points only, than round up */
/* Table of predetermined values from the operation
2 * DiscreteLogWorkFactor(sz * WOLFSSL_BIT_SIZE) / WOLFSSL_BIT_SIZE + 1
Sizes in table checked against RFC 3526
*/
WOLFSSL_DH_ROUND(sz); /* if using fixed points only, then round up */
switch (sz) {
case 128: sz = 21; break;
case 256: sz = 29; break;