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author | Kenny Root <kroot@google.com> | 2015-09-25 02:29:14 +0000 |
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committer | Kenny Root <kroot@google.com> | 2015-09-25 02:29:14 +0000 |
commit | b8494591d1b1a143f3b192d845c238bbf3bc629d (patch) | |
tree | dd743d9d64af3145fe96b8d5fc2f3427544794bd /src/crypto/bn/montgomery.c | |
parent | a04d78d392463df4e69a64360c952ffa5abd22f7 (diff) | |
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Revert "Revert "external/boringssl: sync with upstream.""
This reverts commit a04d78d392463df4e69a64360c952ffa5abd22f7.
Underlying issue was fixed.
Change-Id: I49685b653d16e728eb38e79e02b2c33ddeefed88
Diffstat (limited to 'src/crypto/bn/montgomery.c')
-rw-r--r-- | src/crypto/bn/montgomery.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/crypto/bn/montgomery.c b/src/crypto/bn/montgomery.c index 152cf2d..c6c9c88 100644 --- a/src/crypto/bn/montgomery.c +++ b/src/crypto/bn/montgomery.c @@ -110,6 +110,7 @@ #include <string.h> +#include <openssl/err.h> #include <openssl/mem.h> #include <openssl/thread.h> @@ -176,6 +177,11 @@ int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx) { BIGNUM tmod; BN_ULONG buf[2]; + if (BN_is_zero(mod)) { + OPENSSL_PUT_ERROR(BN, BN_R_DIV_BY_ZERO); + return 0; + } + BN_CTX_start(ctx); Ri = BN_CTX_get(ctx); if (Ri == NULL) { |