wolfSSL/wolfssl
1
0
Fork 1
mirror of https://github.com/wolfSSL/wolfssl.git synced 2025-07-29 18:27:29 +02:00
Code Issues Packages Projects Releases Wiki Activity

SP int: fix for SP_INT_DIGITS calc

Browse Source 
Implementation of sp_mont_red needs words * 2 + 1.
This commit is contained in:
Sean Parkinson
2022-09-07 17:22:22 +10:00
parent 12680a967a
commit 1fe9f2d894
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
wolfssl/wolfcrypt/sp_int.h
View File

@ -425,10 +425,10 @@ typedef struct sp_ecc_ctx {
* numbers in bits that will be used.
* Double the size to hold multiplication result.
* Add one to accommodate extra digit used by sp_mul(), sp_mulmod(),
* sp_sqr(), and sp_sqrmod().
* sp_sqr(), sp_sqrmod() and sp_mont_red().
*/
#define SP_INT_DIGITS \
(((SP_INT_BITS * 2 + SP_WORD_SIZE - 1) / SP_WORD_SIZE) + 1)
(((SP_INT_BITS + SP_WORD_SIZE - 1) / SP_WORD_SIZE) * 2 + 1)
#endif
#ifndef SP_INT_MAX_BITS