Skip to content

crypto: fix auth tag length error when mode != GCM #42383

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
nodejs-github-bot merged 1 commit into from
Mar 20, 2022
Merged

crypto: fix auth tag length error when mode != GCM #42383

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 2 additions & 1 deletion src/crypto/crypto_cipher.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -593,7 +593,8 @@ bool CipherBase::InitAuthenticated(
// Tell OpenSSL about the desired length.
if (!EVP_CIPHER_CTX_ctrl(ctx_.get(), EVP_CTRL_AEAD_SET_TAG, auth_tag_len,
nullptr)) {
THROW_ERR_CRYPTO_INVALID_AUTH_TAG(env());
THROW_ERR_CRYPTO_INVALID_AUTH_TAG(
env(), "Invalid authentication tag length: %u", auth_tag_len);
return false;
}

Expand Down
16 changes: 15 additions & 1 deletion test/parallel/test-crypto-authenticated.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,7 @@ const errMessages = {
state: / state/,
FIPS: /not supported in FIPS mode/,
length: /Invalid initialization vector/,
authTagLength: /Invalid authentication tag/
authTagLength: /Invalid authentication tag length/
};

const ciphers = crypto.getCiphers();
Expand Down Expand Up @@ -687,3 +687,17 @@ for (const test of TEST_CASES) {
});
}
}

{
const key = Buffer.alloc(32);
const iv = Buffer.alloc(12);

for (const authTagLength of [0, 17]) {
assert.throws(() => {
crypto.createCipheriv('chacha20-poly1305', key, iv, { authTagLength });
}, {
code: 'ERR_CRYPTO_INVALID_AUTH_TAG',
message: errMessages.authTagLength
});
}
}