1 files changed, 58 insertions, 0 deletions
diff --git a/src/tpm2/crypto/openssl/consttime.txt' b/src/tpm2/crypto/openssl/consttime.txt'
new file mode 100644
index 0000000..b667086
--- /dev/null
+++ b/src/tpm2/crypto/openssl/consttime.txt'
@@ -0,0 +1,58 @@
+The following OpenSSL public BIGNUM functions check for the BN_FLG_CONSTTIME:
+
+bn_blind.c:
+  BN_BLINDING_new()
+
+bn_exp.c:
+  BN_exp     : must not be set for input bignums
+! BN_mod_exp : SHOULD be set for any one of input bignums (only) if m is odd
+  BN_mod_exp_recp: must NOT be set for input bignums
+  BN_mod_exp_mont: SHOULD be set for any one of input bignums
+  BN_mod_exp_mont_word: must NOT be set for input bignums
+  BN_mod_exp_simple: must NOT bet set for input bignums
+
+bn_gcd.c:
+! BN_mod_inverse: SHOULD be set for any one of input bignums
+
+bn_lib:
+  BN_num_bits
+! BN_copy
+
+bn_mont.c:
+  BN_MONT_CTX_set
+
+bn.h:
+! BN_num_bytes: Calls BN_num_bits
+
+
+Relevant files and functions in the files:
+Helpers.c
+ - BN_dup:
+ - BN_sub:
+ - BN_add_word:
+ - BN_mod_inverse: yes
+ - BN_set_word:
+ - BN_bin2bn:
+ - BN_div:
+ - BN_is_zero:
+
+TpmToOsslMath:
+  OsslToTpmBn:
+   - BN_num_bytes:
+   - BN_bn2bin:
+  BigInitialized:
+   - BN_bin2bn:
+   - BN_copy:
+  BnModMult:
+   - BN_mul:
+   - BN_div:
+  BnMult:
+   - BN_mul:
+  BnDiv:
+   - BN_div:
+  BnGcd:
+   - BN_gcd:
+  BnModExp:
+   - BN_mod_exp: YES
+  BnModInverse:
+   - BN_mod_inverse: YES