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Do an smemclr(bytes) in bignum_random_in_range.

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It's used for sensitive data, so we shouldn't leave it lying around
after free.
This commit is contained in:
Simon Tatham 2014-12-20 18:44:36 +00:00
parent c46da2f079
commit ae4986a433
1 changed files with 1 additions and 0 deletions
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sshbn.c
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@ -1260,6 +1260,7 @@ Bignum bignum_random_in_range(const Bignum lower, const Bignum upper)
ret = bignum_from_bytes(bytes, upper_bytes); ret = bignum_from_bytes(bytes, upper_bytes);
} while (bignum_cmp(ret, lower) < 0 || bignum_cmp(ret, upper) > 0); } while (bignum_cmp(ret, lower) < 0 || bignum_cmp(ret, upper) > 0);
smemclr(bytes, upper_bytes);
sfree(bytes); sfree(bytes);
return ret; return ret;