RsassaPkcs1V15PrivateKey class abstract
RSASSA-PKCS1-v1_5 private key for signing messages.
An RsassaPkcs1V15PrivateKey instance hold a private RSA key for computing signatures using the RSASSA-PKCS1-v1_5 scheme as specified in RFC 3447.
An RsassaPkcs1V15PrivateKey can be imported from:
- PKCS #8 format using RsassaPkcs1V15PrivateKey.importPkcs8Key, and,
- JWK format using RsassaPkcs1V15PrivateKey.importJsonWebKey.
A public-private KeyPair consisting of a RsassaPkcs1V15PublicKey and a RsassaPkcs1V15PrivateKey can be generated using RsassaPkcs1V15PrivateKey.generateKey.
Example
import 'dart:convert' show utf8;
import 'package:webcrypto/webcrypto.dart';
// Generate a key-pair.
final keyPair = await RsassaPkcs1V15PrivateKey.generateKey(
4096,
BigInt.from(65537),
Hash.sha256,
);
// Using privateKey Bob can sign a message for Alice.
final message = 'Hi Alice';
final signature = await keyPair.privateKey.signBytes(utf8.encode(message));
// Given publicKey and signature Alice can verify the message from Bob.
final isValid = await keypair.publicKey.verifyBytes(
signature,
utf8.encode(message),
);
if (isValid) {
print('Authentic message from Bob: $message');
}
- Annotations
-
- @sealed
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
exportJsonWebKey(
) → Future< Map< String, dynamic> > - Export RSASSA-PKCS1-v1_5 private key in JSON Web Key format.
-
exportPkcs8Key(
) → Future< Uint8List> - Export this RSASSA-PKCS1-v1_5 private key in PKCS #8 format.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
signBytes(
List< int> data) → Future<Uint8List> -
Sign
data
with this RSASSA-PKCS1-v1_5 private key. -
signStream(
Stream< List< data) → Future<int> >Uint8List> -
Sign
data
with this RSASSA-PKCS1-v1_5 private key. -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
generateKey(
int modulusLength, BigInt publicExponent, Hash hash) → Future< KeyPair< RsassaPkcs1V15PrivateKey, RsassaPkcs1V15PublicKey> > - Generate an RSASSA-PKCS1-v1_5 public/private key-pair.
-
importJsonWebKey(
Map< String, dynamic> jwk, Hash hash) → Future<RsassaPkcs1V15PrivateKey> - Import RSASSA-PKCS1-v1_5 private key in JSON Web Key format.
-
importPkcs8Key(
List< int> keyData, Hash hash) → Future<RsassaPkcs1V15PrivateKey> - Import RSASSA-PKCS1-v1_5 private key in PKCS #8 format.