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Added support for PSS alogrithm varations

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Rhys
2024-11-14 07:39:03 +13:00
committed by Jonas Roussel
parent a5b32d7a66
commit 7e434a3656
1 changed files with 31 additions and 3 deletions
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34
lib/src/algorithms.dart
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@ -208,9 +208,23 @@ class RSAAlgorithm extends JWTAlgorithm {
); );
if (algorithm == 'PSS') { if (algorithm == 'PSS') {
int byteValue = 32;
final random = _random ?? Random.secure(); final random = _random ?? Random.secure();
switch (name) {
case 'PS256':
byteValue = 32;
break;
case 'PS384':
byteValue = 48;
break;
case 'PS512':
byteValue = 64;
break;
default:
byteValue = 32;
}
final salt = Uint8List.fromList( final salt = Uint8List.fromList(
List.generate(32, (_) => random.nextInt(256)), List.generate(byteValue, (_) => random.nextInt(256)),
); );
params = pc.ParametersWithSalt( params = pc.ParametersWithSalt(
@ -244,15 +258,29 @@ class RSAAlgorithm extends JWTAlgorithm {
); );
if (algorithm == 'PSS') { if (algorithm == 'PSS') {
int byteValue = 32;
final secureRandom = pc.SecureRandom('Fortuna'); final secureRandom = pc.SecureRandom('Fortuna');
final random = Random.secure(); final random = Random.secure();
final seed = List.generate(32, (_) => random.nextInt(256)); switch (algorithm) {
case 'PS256':
byteValue = 34;
break;
case 'PS384':
byteValue = 48;
break;
case 'PS512':
byteValue = 64;
break;
default:
byteValue = 34;
}
final seed = List.generate(byteValue, (_) => random.nextInt(256));
secureRandom.seed(pc.KeyParameter(Uint8List.fromList(seed))); secureRandom.seed(pc.KeyParameter(Uint8List.fromList(seed)));
params = pc.ParametersWithSaltConfiguration( params = pc.ParametersWithSaltConfiguration(
params, params,
secureRandom, secureRandom,
32, byteValue,
); );
} }