Commit ce75ca04 authored by Nils Larsch's avatar Nils Larsch
Browse files

protect BN_BLINDING_invert with a write lock and BN_BLINDING_convert 

with a read lock

Submitted by: Leandro Santi <lesanti@fiuba7504.com.ar>
parent 9dba0554

crypto/rsa/rsa_eay.c

+4 −4
Original line number Diff line number Diff line
@@ -283,9 +283,9 @@ static int rsa_blinding_convert(BN_BLINDING *b, int local, BIGNUM *f, 
	else

		{

		int ret;

		CRYPTO_w_lock(CRYPTO_LOCK_RSA_BLINDING);

		CRYPTO_r_lock(CRYPTO_LOCK_RSA_BLINDING);

		ret = BN_BLINDING_convert_ex(f, r, b, ctx);

		CRYPTO_w_unlock(CRYPTO_LOCK_RSA_BLINDING);

		CRYPTO_r_unlock(CRYPTO_LOCK_RSA_BLINDING);

		return ret;

		}

}
@@ -298,9 +298,9 @@ static int rsa_blinding_invert(BN_BLINDING *b, int local, BIGNUM *f, 
	else

		{

		int ret;

		CRYPTO_r_lock(CRYPTO_LOCK_RSA_BLINDING);

		CRYPTO_w_lock(CRYPTO_LOCK_RSA_BLINDING);

		ret = BN_BLINDING_invert_ex(f, r, b, ctx);

		CRYPTO_r_unlock(CRYPTO_LOCK_RSA_BLINDING);

		CRYPTO_w_unlock(CRYPTO_LOCK_RSA_BLINDING);

		return ret;

		}

}