Previously, EVP_CIPHER_CTX_iv_length always returned the cipher's fixed IV length. Now, after modification with EVP_CTRL_AEAD_SET_IVLEN, it returns the correct value. Fixed: 626 Change-Id: Id98c929439850b3e83a80111f35aabebc6e5d47a Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/62907 Commit-Queue: Bob Beck <bbe@google.com> Reviewed-by: Bob Beck <bbe@google.com>