tree 6c7e9256d431d624a685538d65403a83bbf6cbd9
parent b4810de60f151e9848b19a87d9679f3befcd39b2
author David Benjamin <davidben@google.com> 1529605577 -0400
committer Adam Langley <agl@google.com> 1529997790 +0000

Properly advance the CBS when parsing BER structures.

CBS_asn1_ber_to_der was a little cumbersome to use. While it, in theory,
allowed callers to consistently advance past the element, no caller
actually did so consistently. Instead they would advance if conversion
happened, and not if it was already DER. For the PKCS7_* functions, this
was even caller-exposed.

Change-Id: I658d265df899bace9ba6616cb465f19c9e6c3534
Reviewed-on: https://boringssl-review.googlesource.com/29304
Reviewed-by: Adam Langley <agl@google.com>