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| author | Tux <tuxxy@users.noreply.github.com> | 2018-04-24 18:12:13 -0600 |
|---|---|---|
| committer | Alex Gaynor <alex.gaynor@gmail.com> | 2018-04-24 20:12:13 -0400 |
| commit | 47438529612c475f6c10a8c2826d8a16b4f83fe6 (patch) | |
| tree | a58725542488a9571f6386dceda4d8489194f98c /src/_cffi_src/openssl | |
| parent | c81df6b255e4e767419bccbeff033497fd1324e9 (diff) | |
| download | cryptography-47438529612c475f6c10a8c2826d8a16b4f83fe6.tar.gz cryptography-47438529612c475f6c10a8c2826d8a16b4f83fe6.tar.bz2 cryptography-47438529612c475f6c10a8c2826d8a16b4f83fe6.zip | |
Expose OpenSSL constant time bignum arithmetic (#4200)
* Expose BIGNUM constant time operations
This commit exposes the following functions:
BN_set_flags
BN_get_flags
BN_MONT_CTX_new
BN_MONT_CTX_set
BN_MONT_CTX_free
BN_mod_exp_mont
BN_mod_exp_mont_consttime
This commit also exposes the BN_FLG_CONSTTIME flag.
* Add myself to AUTHORS
Diffstat (limited to 'src/_cffi_src/openssl')
| -rw-r--r-- | src/_cffi_src/openssl/bignum.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/_cffi_src/openssl/bignum.py b/src/_cffi_src/openssl/bignum.py index 2c140c93..0f1f83c3 100644 --- a/src/_cffi_src/openssl/bignum.py +++ b/src/_cffi_src/openssl/bignum.py @@ -10,11 +10,17 @@ INCLUDES = """ TYPES = """ typedef ... BN_CTX; +typedef ... BN_MONT_CTX; typedef ... BIGNUM; typedef int... BN_ULONG; """ FUNCTIONS = """ +#define BN_FLG_CONSTTIME ... + +void BN_set_flags(BIGNUM *, int); +int BN_get_flags(const BIGNUM *, int); + BIGNUM *BN_new(void); void BN_free(BIGNUM *); void BN_clear_free(BIGNUM *); @@ -29,6 +35,10 @@ void BN_CTX_start(BN_CTX *); BIGNUM *BN_CTX_get(BN_CTX *); void BN_CTX_end(BN_CTX *); +BN_MONT_CTX *BN_MONT_CTX_new(void); +int BN_MONT_CTX_set(BN_MONT_CTX *, BIGNUM *, BN_CTX *); +void BN_MONT_CTX_free(BN_MONT_CTX *); + BIGNUM *BN_copy(BIGNUM *, const BIGNUM *); BIGNUM *BN_dup(const BIGNUM *); @@ -63,6 +73,10 @@ int BN_mod_sqr(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *); int BN_exp(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *); int BN_mod_exp(BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *); +int BN_mod_exp_mont(BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, + BN_CTX *, BN_MONT_CTX *); +int BN_mod_exp_mont_consttime(BIGNUM *, const BIGNUM *, const BIGNUM *, + const BIGNUM *, BN_CTX *, BN_MONT_CTX *); int BN_gcd(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *); BIGNUM *BN_mod_inverse(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *); |