michael@0: The GCM test vectors in this directory were downloaded from the NIST
michael@0: Cryptographic Algorithm Validation Program (CAVP) website
michael@0: (http://csrc.nist.gov/groups/STM/cavp/) on Mar 29, 2013 using the URL
michael@0: http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip.
michael@0: 
michael@0: The original test files are about 3 MB each, which are too big to
michael@0: include in the NSS source tree.  I observed the following patterns in
michael@0: the test vectors:
michael@0: 1. Taglen changes in a cycle of 7: 128, 120, 112, 104, 96, 64, 32.
michael@0: 2. Then, AADlen changes in a cycle of 5: 0, 128, 160, 384, 720.
michael@0: 
michael@0: To reduce the number of test vectors, I kept Taglen = 128, 96 from
michael@0: each cycle of 7, and kept AADlen = 0, 720, 160 from each two cycles
michael@0: of 10.