vendor aes12, quic-go-certificates and golang-lru

vendor/github.com/lucas-clemente/aes12/Readme.md

@@ -0,0 +1,28 @@
+# aes12
+
+This package modifies the AES-GCM implementation from Go's standard library to use 12 byte tag sizes. It is not intended for a general audience, and used in [quic-go](https://github.com/lucas-clemente/quic-go).
+
+To make use of the in-place encryption / decryption feature, the `dst` parameter to `Seal` and `Open` should be 16 bytes longer than plaintext, not 12.
+
+Command for testing:
+
+```
+go test . --bench=. && GOARCH=386 go test . --bench=.
+```
+
+The output (on my machine):
+
+```
+BenchmarkAESGCMSeal1K-8   	 3000000	       467 ns/op	2192.37 MB/s
+BenchmarkAESGCMOpen1K-8   	 3000000	       416 ns/op	2456.72 MB/s
+BenchmarkAESGCMSeal8K-8   	  500000	      2742 ns/op	2986.53 MB/s
+BenchmarkAESGCMOpen8K-8   	  500000	      2791 ns/op	2934.65 MB/s
+PASS
+ok  	github.com/lucas-clemente/aes12	6.383s
+BenchmarkAESGCMSeal1K-8   	   50000	     35233 ns/op	  29.06 MB/s
+BenchmarkAESGCMOpen1K-8   	   50000	     34529 ns/op	  29.66 MB/s
+BenchmarkAESGCMSeal8K-8   	    5000	    262678 ns/op	  31.19 MB/s
+BenchmarkAESGCMOpen8K-8   	    5000	    267296 ns/op	  30.65 MB/s
+PASS
+ok  	github.com/lucas-clemente/aes12	6.972s
+```