diff options
| author | najeira <najeira@gmail.com> | 2021-09-14 04:47:41 +0000 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2025-04-16 08:45:29 -0700 |
| commit | 2cb9e7f68f90ea9119fd4172fc61630279d79d67 (patch) | |
| tree | 3fc122dbf18b7da6958a7e85a5747b1640691641 /src | |
| parent | 5413abc44025f281f2a7ea37b3e0043591dbed3e (diff) | |
| download | go-2cb9e7f68f90ea9119fd4172fc61630279d79d67.tar.xz | |
crypto/cipher: use AEAD.NonceSize to make nonce in the example
The existing example uses hard-coded constant to make nonce buffer.
Using AEAD.NonceSize makes it a more portable and appropriate example.
Fixes: #48372
Change-Id: I7c7a38ed48aff46ca11ef4f5654c778eac13dde6
GitHub-Last-Rev: 03ccbb16df4ca9cbd4a014836aee0f54b2ff3002
GitHub-Pull-Request: golang/go#48373
Reviewed-on: https://go-review.googlesource.com/c/go/+/349603
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sean Liao <sean@liao.dev>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Sean Liao <sean@liao.dev>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/crypto/cipher/example_test.go | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/crypto/cipher/example_test.go b/src/crypto/cipher/example_test.go index 9c32d6a934..86dbda9ec0 100644 --- a/src/crypto/cipher/example_test.go +++ b/src/crypto/cipher/example_test.go @@ -29,14 +29,14 @@ func ExampleNewGCM_encrypt() { panic(err.Error()) } - // Never use more than 2^32 random nonces with a given key because of the risk of a repeat. - nonce := make([]byte, 12) - if _, err := io.ReadFull(rand.Reader, nonce); err != nil { + aesgcm, err := cipher.NewGCM(block) + if err != nil { panic(err.Error()) } - aesgcm, err := cipher.NewGCM(block) - if err != nil { + // Never use more than 2^32 random nonces with a given key because of the risk of a repeat. + nonce := make([]byte, aesgcm.NonceSize()) + if _, err := io.ReadFull(rand.Reader, nonce); err != nil { panic(err.Error()) } |