tree ef0d392184f6292d7d52261ce642a2f0a9bda4aa
parent 272e7a68f85706a631b209998ba5c4aeb69ca403
author Elliott Hughes <enh@google.com> 1493671530 -0700
committer Elliott Hughes <enh@google.com> 1493679916 -0700

Stop writing NUL bytes in adbkey.pub.

In N we moved some code from C to C++ without realizing that EVP_EncodedLength
includes space for a terminating NUL and EVP_EncodeBlock writes one. Because
our key reading code copes with the NUL, we never noticed.

Distinguish between the required space returned by EVP_EncodedLength and the
actual number of bytes (not including NUL) used return by EVP_EncodeBlock.

Bug: http://b/36187819
Test: hexdump of ~/.android/adbkey.pub
Change-Id: I81a487ddbb5c884593b6426d1f41cfaece26ff90