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fix: use macv2 for correct base64 encoding

This commit is contained in:
td 2025-03-28 13:06:42 +01:00
parent 8c74fae354
commit 8b3776aed2
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GPG Key ID: 62A30523D4D6CE28
2 changed files with 10 additions and 3 deletions
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11
lib/encryption/utils/key_verification.dart
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@ -1238,7 +1238,10 @@ class QRCode {
const knownKeyAgreementProtocols = ['curve25519-hkdf-sha256', 'curve25519'];
const knownHashes = ['sha256'];
const knownHashesAuthentificationCodes = ['hkdf-hmac-sha256'];
const knownHashesAuthentificationCodes = [
'hkdf-hmac-sha256.v2',
'hkdf-hmac-sha256',
];
class _KeyVerificationMethodSas extends _KeyVerificationMethod {
_KeyVerificationMethodSas({required super.request});
@ -1396,6 +1399,8 @@ class _KeyVerificationMethodSas extends _KeyVerificationMethod {
if (possibleMessageAuthenticationCodes.isEmpty) {
return false;
}
// intersect should make sure we choose v2 over the dep'd one
messageAuthenticationCode = possibleMessageAuthenticationCodes.first;
final possibleAuthenticationTypes = _intersect(
knownAuthentificationTypes,
@ -1560,7 +1565,9 @@ class _KeyVerificationMethodSas extends _KeyVerificationMethod {
}
String _calculateMac(String input, String info) {
if (messageAuthenticationCode == 'hkdf-hmac-sha256') {
if (messageAuthenticationCode == 'hkdf-hmac-sha256.v2') {
return sas!.calculate_mac_fixed_base64(input, info);
} else if (messageAuthenticationCode == 'hkdf-hmac-sha256') {
return sas!.calculate_mac(input, info);
} else {
throw Exception('Unknown message authentification code');

2
pubspec.yaml
View File

@ -25,7 +25,7 @@ dependencies:
js: ^0.6.3
markdown: ^7.1.1
mime: ">=1.0.0 <3.0.0"
olm: ^2.0.2
olm: ^3.1.0
random_string: ^2.3.1
sdp_transform: ^0.3.2
slugify: ^2.0.0