| // See file LICENSE for more information. |
| |
| library test.asymmetric.oaep_test; |
| |
| import 'dart:typed_data'; |
| |
| import 'package:pointycastle/export.dart'; |
| import 'package:pointycastle/src/impl/secure_random_base.dart'; |
| import 'package:pointycastle/src/registry/registry.dart'; |
| import 'package:pointycastle/src/utils.dart'; |
| import 'package:test/test.dart'; |
| |
| import '../test/src/helpers.dart'; |
| import '../test/src/null_asymmetric_block_cipher.dart'; |
| |
| //================================================================ |
| |
| void main() { |
| rsaesOaepFromBC(); |
| rsaOaepStandardTests(); |
| } |
| |
| //================================================================ |
| /// Tests for RSA-OAEP with a known-correct test vector. |
| /// |
| /// Test RSA-OAEP using the test vector from 'RSAES-OAEP Encryption Scheme: |
| /// Algorithm specification and supporting documentation', published by |
| /// RSA Laboratories in 2000. |
| /// |
| /// A copy was found here: |
| /// https://www.inf.pucrs.br/~calazans/graduate/TPVLSI_I/RSA-oaep_spec.pdf |
| |
| void rsaOaepStandardTests() { |
| // RSA key information |
| |
| // n, the modulus: |
| final n = decodeBigIntWithSign( |
| 1, |
| createUint8ListFromHexString( |
| 'bb f8 2f 09 06 82 ce 9c 23 38 ac 2b 9d a8 71 f7 36 8d 07 ee d4 10 43 a4' |
| '40 d6 b6 f0 74 54 f5 1f b8 df ba af 03 5c 02 ab 61 ea 48 ce eb 6f cd 48' |
| '76 ed 52 0d 60 e1 ec 46 19 71 9d 8a 5b 8b 80 7f af b8 e0 a3 df c7 37 72' |
| '3e e6 b4 b7 d9 3a 25 84 ee 6a 64 9d 06 09 53 74 88 34 b2 45 45 98 39 4e' |
| 'e0 aa b1 2d 7b 61 a5 1f 52 7a 9a 41 f6 c1 68 7f e2 53 72 98 ca 2a 8f 59' |
| '46 f8 e5 fd 09 1d bd cb')); |
| |
| // e, the public exponent |
| final e = decodeBigIntWithSign(1, createUint8ListFromHexString('11')); |
| |
| // p, the first prime factor of n |
| final p = decodeBigIntWithSign( |
| 1, |
| createUint8ListFromHexString( |
| 'ee cf ae 81 b1 b9 b3 c9 08 81 0b 10 a1 b5 60 01 99 eb 9f 44 ae f4 fd a4' |
| '93 b8 1a 9e 3d 84 f6 32 12 4e f0 23 6e 5d 1e 3b 7e 28 fa e7 aa 04 0a 2d' |
| '5b 25 21 76 45 9d 1f 39 75 41 ba 2a 58 fb 65 99')); |
| |
| // q, the second prime factor of n: |
| final q = decodeBigIntWithSign( |
| 1, |
| createUint8ListFromHexString( |
| 'c9 7f b1 f0 27 f4 53 f6 34 12 33 ea aa d1 d9 35 3f 6c 42 d0 88 66 b1 d0' |
| '5a 0f 20 35 02 8b 9d 86 98 40 b4 16 66 b4 2e 92 ea 0d a3 b4 32 04 b5 cf' |
| 'ce 33 52 52 4d 04 16 a5 a4 41 e7 00 af 46 15 03')); |
| |
| // dP , p’s exponent: |
| final dP = decodeBigIntWithSign( |
| 1, |
| createUint8ListFromHexString( |
| '54 49 4c a6 3e ba 03 37 e4 e2 40 23 fc d6 9a 5a eb 07 dd dc 01 83 a4 d0' |
| 'ac 9b 54 b0 51 f2 b1 3e d9 49 09 75 ea b7 74 14 ff 59 c1 f7 69 2e 9a 2e' |
| '20 2b 38 fc 91 0a 47 41 74 ad c9 3c 1f 67 c9 81')); |
| |
| // dQ, q’s exponent: |
| final dQ = decodeBigIntWithSign( |
| 1, |
| createUint8ListFromHexString( |
| '47 1e 02 90 ff 0a f0 75 03 51 b7 f8 78 86 4c a9 61 ad bd 3a 8a 7e 99 1c' |
| '5c 05 56 a9 4c 31 46 a7 f9 80 3f 8f 6f 8a e3 42 e9 31 fd 8a e4 7a 22 0d' |
| '1b 99 a4 95 84 98 07 fe 39 f9 24 5a 98 36 da 3d')); |
| |
| // qInv, the CRT coefficient: |
| final qInv = decodeBigIntWithSign( |
| 1, |
| createUint8ListFromHexString( |
| 'b0 6c 4f da bb 63 01 19 8d 26 5b db ae 94 23 b3 80 f2 71 f7 34 53 88 50' |
| '93 07 7f cd 39 e2 11 9f c9 86 32 15 4f 58 83 b1 67 a9 67 bf 40 2b 4e 9e' |
| '2e 0f 96 56 e6 98 ea 36 66 ed fb 25 79 80 39 f7')); |
| |
| //---------------- |
| // Encryption |
| |
| // M, the message to be encrypted: |
| final message = createUint8ListFromHexString( |
| 'd4 36 e9 95 69 fd 32 a7 c8 a0 5b bc 90 d3 2c 49'); |
| |
| // P , encoding parameters: NULL |
| // ignore: unused_local_variable |
| final dynamic params = null; |
| |
| // pHash = Hash(P ): |
| // ignore: unused_local_variable |
| final pHash = createUint8ListFromHexString( |
| 'da 39 a3 ee 5e 6b 4b 0d 32 55 bf ef 95 60 18 90 af d8 07 09'); |
| |
| // DB = pHash∥PS∥01∥M: |
| // ignore: unused_local_variable |
| final db = createUint8ListFromHexString( |
| 'da 39 a3 ee 5e 6b 4b 0d 32 55 bf ef 95 60 18 90 af d8 07 09 00 00 00 00' |
| '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00' |
| '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00' |
| '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 d4 36 e9 95 69' |
| 'fd 32 a7 c8 a0 5b bc 90 d3 2c 49'); |
| |
| // seed, a random octet string: |
| // ignore: unused_local_variable |
| final seed = createUint8ListFromHexString( |
| 'aa fd 12 f6 59 ca e6 34 89 b4 79 e5 07 6d de c2 f0 6c b5 8f'); |
| |
| // dbMask = M GF (seed , 107): |
| // ignore: unused_local_variable |
| final dbMask = createUint8ListFromHexString( |
| '06 e1 de b2 36 9a a5 a5 c7 07 d8 2c 8e 4e 93 24 8a c7 83 de e0 b2 c0 46' |
| '26 f5 af f9 3e dc fb 25 c9 c2 b3 ff 8a e1 0e 83 9a 2d db 4c dc fe 4f f4' |
| '77 28 b4 a1 b7 c1 36 2b aa d2 9a b4 8d 28 69 d5 02 41 21 43 58 11 59 1b' |
| 'e3 92 f9 82 fb 3e 87 d0 95 ae b4 04 48 db 97 2f 3a c1 4e af f4 9c 8c 3b' |
| '7c fc 95 1a 51 ec d1 dd e6 12 64'); |
| |
| // maskedDB = DB ⊕ dbMask: |
| // ignore: unused_local_variable |
| final maskedDB = createUint8ListFromHexString( |
| 'dc d8 7d 5c 68 f1 ee a8 f5 52 67 c3 1b 2e 8b b4 25 1f 84 d7 e0 b2 c0 46' |
| '26 f5 af f9 3e dc fb 25 c9 c2 b3 ff 8a e1 0e 83 9a 2d db 4c dc fe 4f f4' |
| '77 28 b4 a1 b7 c1 36 2b aa d2 9a b4 8d 28 69 d5 02 41 21 43 58 11 59 1b' |
| 'e3 92 f9 82 fb 3e 87 d0 95 ae b4 04 48 db 97 2f 3a c1 4f 7b c2 75 19 52' |
| '81 ce 32 d2 f1 b7 6d 4d 35 3e 2d'); |
| |
| // seedMask = M GF (maskedDB, 20): |
| // ignore: unused_local_variable |
| final seedMask = createUint8ListFromHexString( |
| '41 87 0b 5a b0 29 e6 57 d9 57 50 b5 4c 28 3c 08 72 5d be a9'); |
| |
| // maskedSeed = seed ⊕ seedMask: |
| // ignore: unused_local_variable |
| final maskedSeed = createUint8ListFromHexString( |
| 'eb 7a 19 ac e9 e3 00 63 50 e3 29 50 4b 45 e2 ca 82 31 0b 26'); |
| |
| // EM = maskedSeed∥maskedDB: |
| final em = createUint8ListFromHexString( |
| 'eb 7a 19 ac e9 e3 00 63 50 e3 29 50 4b 45 e2 ca 82 31 0b 26 dc d8 7d 5c' |
| '68 f1 ee a8 f5 52 67 c3 1b 2e 8b b4 25 1f 84 d7 e0 b2 c0 46 26 f5 af f9' |
| '3e dc fb 25 c9 c2 b3 ff 8a e1 0e 83 9a 2d db 4c dc fe 4f f4 77 28 b4 a1' |
| 'b7 c1 36 2b aa d2 9a b4 8d 28 69 d5 02 41 21 43 58 11 59 1b e3 92 f9 82' |
| 'fb 3e 87 d0 95 ae b4 04 48 db 97 2f 3a c1 4f 7b c2 75 19 52 81 ce 32 d2' |
| 'f1 b7 6d 4d 35 3e 2d'); |
| |
| // C, the RSA encryption of EM: |
| final ciphertext = createUint8ListFromHexString( |
| '12 53 e0 4d c0 a5 39 7b b4 4a 7a b8 7e 9b f2 a0 39 a3 3d 1e 99 6f c8 2a' |
| '94 cc d3 00 74 c9 5d f7 63 72 20 17 06 9e 52 68 da 5d 1c 0b 4f 87 2c f6' |
| '53 c1 1d f8 23 14 a6 79 68 df ea e2 8d ef 04 bb 6d 84 b1 c3 1d 65 4a 19' |
| '70 e5 78 3b d6 eb 96 a0 24 c2 ca 2f 4a 90 fe 9f 2e f5 c9 c1 40 e5 bb 48' |
| 'da 95 36 ad 87 00 c8 4f c9 13 0a de a7 4e 55 8d 51 a7 4d df 85 d8 b5 0d' |
| 'e9 68 38 d6 06 3e 09 55'); |
| |
| //---------------- |
| // Decryption |
| |
| // c mod p (c is the integer value of C): |
| // ignore: unused_local_variable |
| final cModP = createUint8ListFromHexString( |
| 'de 63 d4 72 35 66 fa a7 59 bf e4 08 82 1d d5 25 72 ec 92 85 4d df 87 a2' |
| 'b6 64 d4 4d aa 37 ca 34 6a 05 20 3d 82 ff 2d e8 e3 6c ec 1d 34 f9 8e b6' |
| '05 e2 a7 d2 6d e7 af 36 9c e4 ec ae 14 e3 56 33'); |
| |
| // c mod q: |
| // ignore: unused_local_variable |
| final cModQ = createUint8ListFromHexString( |
| 'a2 d9 24 de d9 c3 6d 62 3e d9 a6 5b 5d 86 2c fb ec 8b 19 9c 64 27 9c 54' |
| '14 e6 41 19 6e f1 c9 3c 50 7a 9b 52 13 88 1a ad 05 b4 cc fa 02 8a c1 ec' |
| '61 42 09 74 bf 16 25 83 6b 0b 7d 05 fb b7 53 36'); |
| |
| // m1 =cdP modp=(cmodp)dP modp: |
| // ignore: unused_local_variable |
| final m1 = createUint8ListFromHexString( |
| '89 6c a2 6c d7 e4 87 1c 7f c9 68 a8 ed ea 11 e2 71 82 4f 0e 03 65 52 17' |
| '94 f1 e9 e9 43 b4 a4 4b 57 c9 e3 95 a1 46 74 78 f5 26 49 6b 4b b9 1f 1c' |
| 'ba ea 90 0f fc 60 2c f0 c6 63 6e ba 84 fc 9f f7'); |
| |
| //m2 =cdQ modq=(cmodq)dQ modq: |
| // ignore: unused_local_variable |
| final m2 = createUint8ListFromHexString( |
| '4e bb 22 75 85 f0 c1 31 2d ca 19 e0 b5 41 db 14 99 fb f1 4e 27 0e 69 8e' |
| '23 9a 8c 27 a9 6c da 9a 74 09 74 de 93 7b 5c 9c 93 ea d9 46 2c 65 75 02' |
| '1a 23 d4 64 99 dc 9f 6b 35 89 75 59 60 8f 19 be'); |
| |
| // h=(m1 −m2)qInvmodp: |
| // ignore: unused_local_variable |
| final h = createUint8ListFromHexString( |
| '01 2b 2b 24 15 0e 76 e1 59 bd 8d db 42 76 e0 7b fa c1 88 e0 8d 60 47 cf' |
| '0e fb 8a e2 ae bd f2 51 c4 0e bc 23 dc fd 4a 34 42 43 94 ad a9 2c fc be' |
| '1b 2e ff bb 60 fd fb 03 35 9a 95 36 8d 98 09 25'); |
| |
| //---------------------------------------------------------------- |
| // Create Pointy Castle [RSAPublicKey] and [RSAPrivateKey] objects. |
| |
| // Derive the private exponent (d) from values provided in the test vector. |
| |
| final phi = (p - BigInt.one) * (q - BigInt.one); |
| |
| final privateExponent = e.modInverse(phi); |
| |
| // Instantiate the RSA key pair objects |
| |
| final publicKey = RSAPublicKey(n, e); |
| final privateKey = RSAPrivateKey(n, privateExponent, p, q, e); |
| |
| //---------------- |
| |
| test('RSA key pair is valid', () { |
| // Some correctness checks for the RSA public-key values. |
| // |
| // This test should never fail, since the values are known to be correct. |
| |
| expect(p * q, equals(n)); // modulus = p * q |
| |
| // dP = (1/e) mod (p-1) |
| expect(e.modInverse(p - BigInt.one), equals(dP)); |
| |
| // dQ = (1/e) mod (q-1) |
| expect(e.modInverse(q - BigInt.one), equals(dQ)); |
| |
| // qInv = (1/q) mod p where p > q |
| expect(q.modInverse(p), equals(qInv)); |
| |
| expect((e * privateExponent) % phi, equals(BigInt.one)); |
| }); |
| |
| //---------------------------------------------------------------- |
| |
| test('EME-OAEP encoding operation', () { |
| // This test is actually redundant. |
| // |
| // If the following 'encryption' test passes, then the encoding operation |
| // would have also worked. But since we can make replace the [RSAEngine] |
| // with the [NullAsymmetricBlockCipher] that does nothing, we can use it to |
| // examine the EME-OAEP encoded message (called 'EM' in RFC 2437), before it |
| // normally gets encrypted. |
| // |
| // If there is a bug in the underlying asymmetric encryption (i.e. in the |
| // [RSAEngine], this test will succeed when the encryption test will fail. |
| // If there is a bug in the EME-OAEP encoding operation, then this test and |
| // the following encryption test will both fail. It is impossible for this |
| // test to fail and the encryption test to pass. |
| |
| // Can't instantiate using AsymmetricBlockCipher('Null/OAEP'), because the |
| // default [NullAsymmetricBlockCipher] has block lengths of 70 instead of |
| // 127 (which is necessary for this to work properly). So must use its |
| // constructor and pass in 127 for the two block lengths. |
| |
| final encryptor = OAEPEncoding(NullAsymmetricBlockCipher(127, 127)); |
| |
| encryptor.init( |
| true, |
| ParametersWithRandom(PublicKeyParameter<RSAPublicKey>(publicKey), |
| _OAEPTestEntropySource()..seed(KeyParameter(seed)))); |
| |
| // Pretend to encrypt the test [message] value |
| |
| final output = Uint8List(encryptor.outputBlockSize); |
| |
| final size = encryptor.processBlock(message, 0, message.length, output, 0); |
| expect(size, equals(encryptor.outputBlockSize)); |
| |
| // The output should be the unencrypted EM (since Null cipher does nothing) |
| |
| expect(output, equals(em)); |
| }); |
| |
| //---------------------------------------------------------------- |
| |
| test('encryption', () { |
| // Create the OAEPEncoding and initialize it with the publicKey and a |
| // special SecureRandom implementation that always returns the fixed [seed] |
| // value, so the produced ciphertext is deterministic and can match the |
| // expected value. DO NOT DO THIS IN PRODUCTION. This is insecure and is |
| // done only for testing purposes. |
| |
| registry.register(_OAEPTestEntropySource.factoryConfig); // register 'Fixed' |
| |
| final encryptor = AsymmetricBlockCipher('RSA/OAEP'); // using registry |
| |
| encryptor.init( |
| true, // true = for encryption |
| ParametersWithRandom(PublicKeyParameter<RSAPublicKey>(publicKey), |
| SecureRandom('_oaep_rand')..seed(KeyParameter(seed)))); |
| |
| // Encrypt the test [message] value |
| |
| final output = Uint8List(encryptor.outputBlockSize); |
| |
| final size = encryptor.processBlock(message, 0, message.length, output, 0); |
| expect(size, equals(encryptor.outputBlockSize)); |
| |
| // The ciphertext should be the expected test [ciphertext] value |
| |
| expect(output, equals(ciphertext)); |
| }); |
| |
| //---------------------------------------------------------------- |
| |
| test('decryption', () { |
| final decryptor = OAEPEncoding(RSAEngine()); // without using the registry |
| |
| decryptor.init(false, PrivateKeyParameter<RSAPrivateKey>(privateKey)); |
| |
| // Decrypt the test [ciphertext] value |
| |
| final outBuf = Uint8List(decryptor.outputBlockSize); |
| |
| final outputSize = |
| decryptor.processBlock(ciphertext, 0, ciphertext.length, outBuf, 0); |
| final decrypted = outBuf.sublist(0, outputSize); |
| |
| // The decrypted message should be the expected test [message] value |
| |
| expect(decrypted, equals(message)); |
| }); |
| |
| //---------------------------------------------------------------- |
| |
| test('tampered ciphertext detected', () { |
| final decryptor = OAEPEncoding(RSAEngine()); // without using the registry |
| |
| decryptor.init(false, PrivateKeyParameter<RSAPrivateKey>(privateKey)); |
| |
| // Try tampering with every bit in the ciphertext (128 bytes = 1024 bits) |
| |
| for (var bitPos = 0; bitPos < ciphertext.length * 8; bitPos++) { |
| // Create a copy of the ciphertext that has been tampered with |
| |
| final tamperedCiphertext = Uint8List.fromList(ciphertext); |
| tamperedCiphertext[bitPos ~/ 8] ^= 0x01 << (bitPos % 8); // flip a bit |
| |
| // Try to decrypt it: expecting it to always fail |
| |
| try { |
| final outBuf = Uint8List(decryptor.outputBlockSize); |
| |
| // ignore: unused_local_variable |
| final _outputSize = decryptor.processBlock( |
| tamperedCiphertext, 0, tamperedCiphertext.length, outBuf, 0); |
| fail('tampered with ciphertext still decrypted'); |
| |
| // final decrypted = outBuf.sublist(0, outputSize); |
| // expect(decrypted, equals(message)); |
| |
| } on ArgumentError catch (e) { |
| expect(e.message, equals('decoding error')); |
| } |
| } |
| }); |
| |
| test('EME-OAEP encoding operation', () { |
| // This test is actually redundant. |
| // |
| // If the following 'encryption' test passes, then the encoding operation |
| // would have also worked. But since we can make replace the [RSAEngine] |
| // with the [NullAsymmetricBlockCipher] that does nothing, we can use it to |
| // examine the EME-OAEP encoded message (called 'EM' in RFC 2437), before it |
| // normally gets encrypted. |
| // |
| // If there is a bug in the underlying asymmetric encryption (i.e. in the |
| // [RSAEngine], this test will succeed when the encryption test will fail. |
| // If there is a bug in the EME-OAEP encoding operation, then this test and |
| // the following encryption test will both fail. It is impossible for this |
| // test to fail and the encryption test to pass. |
| |
| // Can't instantiate using AsymmetricBlockCipher('Null/OAEP'), because the |
| // default [NullAsymmetricBlockCipher] has block lengths of 70 instead of |
| // 127 (which is necessary for this to work properly). So must use its |
| // constructor and pass in 127 for the two block lengths. |
| |
| final encryptor = OAEPEncoding(NullAsymmetricBlockCipher(127, 127)); |
| |
| encryptor.init( |
| true, |
| ParametersWithRandom(PublicKeyParameter<RSAPublicKey>(publicKey), |
| _OAEPTestEntropySource()..seed(KeyParameter(seed)))); |
| |
| // Pretend to encrypt the test [message] value |
| |
| final output = Uint8List(encryptor.outputBlockSize); |
| |
| final size = encryptor.processBlock(message, 0, message.length, output, 0); |
| expect(size, equals(encryptor.outputBlockSize)); |
| |
| // The output should be the unencrypted EM (since Null cipher does nothing) |
| |
| expect(output, equals(em)); |
| }); |
| |
| //---------------------------------------------------------------- |
| /// Test decryption when EME-OAEP encoded message has leading 0x00 bytes. |
| /// |
| /// This is a regression test, since Pointy Castle v1.0.2 had a bug which |
| /// caused decryption to fail in these situation. The leading null byte is not |
| /// needed to represent the same integer value. But a correct implementation |
| /// of the I2OSP (integer to octet string primitive) will produce the |
| /// correct number of null bytes. |
| |
| test('I2OSP when EM starts with 0x00 bytes', () { |
| // This test could be done with any key pair, but since we already have a |
| // key pair from the above tests, use it. |
| |
| final keySizeInBytes = publicKey.modulus!.bitLength ~/ 8; |
| |
| final numNulls = List<int>.filled(keySizeInBytes, 0); // tracks test cases |
| |
| // The EME-OAEP encoded message (EM) is determined by: |
| // |
| // - length of the block (determined by public key used) |
| // - the message |
| // - random bytes used as the seed |
| // - other factors that are constant in OAEPEncoding (i.e. hash algorithm, |
| // parameters and mask generating function) |
| // |
| // Below are a carefully chosen test message and seeds for a |
| // FixedSecureRandom known to produce _EM_ that start with 1, 2 and 3 0x00 |
| // bytes. |
| |
| final testMsg = Uint8List.fromList('Hello world!'.codeUnits); |
| |
| for (final x in [822, 197378, 522502]) { |
| // Change above to the following, to use the code to find test cases |
| // const numCasesToTry = 1000; |
| // for (var x = 0; x < numCasesToTry; x++) { |
| |
| // Create a testSeed from x |
| |
| final numbers = <int>[]; |
| var n = x; |
| while (0 < n) { |
| numbers.add(n & 0xFF); |
| n = n >> 8; |
| } |
| final testFixedRndSeed = Uint8List.fromList(numbers.reversed.toList()); |
| // print('FixedSecureRandom seed: $testFixedRndSeed (from x = $x)'); |
| |
| final processTestCaseWith = (AsymmetricBlockCipher blockCipher) { |
| final rnd = _OAEPTestEntropySource() |
| ..seed(KeyParameter(testFixedRndSeed)); |
| |
| final enc = OAEPEncoding(blockCipher); |
| |
| enc.init( |
| true, |
| ParametersWithRandom( |
| PublicKeyParameter<RSAPublicKey>(publicKey), rnd)); |
| |
| final _buf = Uint8List(enc.outputBlockSize); |
| final _len = enc.processBlock(testMsg, 0, testMsg.length, _buf, 0); |
| return _buf.sublist(0, _len); |
| }; |
| |
| // Use null block cipher to obtain the EM (encryption does nothing) |
| |
| final testEM = processTestCaseWith( |
| NullAsymmetricBlockCipher(keySizeInBytes - 1, keySizeInBytes)); |
| |
| // Determine how many 0x00 are at the start of the EM |
| |
| var numNullBytesAtStart = 0; |
| while (testEM[numNullBytesAtStart] == 0x00) { |
| numNullBytesAtStart++; |
| } |
| |
| numNulls[numNullBytesAtStart]++; // record it for later test case checking |
| |
| // if (0 < numNullBytesAtStart) { |
| // print('x=$x produced ${numNullBytesAtStart} null bytes'); |
| // } |
| |
| // Use RSA block cipher to obtain the ciphertext (i.e. encrypted EM). |
| // Exactly the same as when finding the EM, except the underlying cipher |
| // is now RSA instead of a null cipher. |
| |
| final cipher = processTestCaseWith(RSAEngine()); |
| |
| // Decrypt the cipher (if the I2OSP does not correctly reproduce the |
| // 0x00 byte, the decryption operation will fail). |
| |
| final dec = OAEPEncoding(RSAEngine()); |
| |
| dec.init(false, PrivateKeyParameter<RSAPrivateKey>(privateKey)); |
| |
| final _decBuf = Uint8List(dec.outputBlockSize); |
| final _decSize = dec.processBlock(cipher, 0, cipher.length, _decBuf, 0); |
| final decrypted = _decBuf.sublist(0, _decSize); |
| |
| expect(decrypted, equals(testMsg)); |
| } |
| |
| // Check above has included test cases with the desired number of 0x00 bytes |
| |
| const maxNumNullsTested = 3; // looking for cases with 1, 2 and 3 0x00 bytes |
| |
| for (var n = 1; n <= maxNumNullsTested; n++) { |
| // print('Number of test cases starting with $n 0x00: ${numNulls[n]}'); |
| expect(numNulls[n], greaterThan(0), |
| reason: 'no test case with EM starting with $n 0x00'); |
| } |
| }); |
| } |
| |
| class Vector { |
| BigInt? pubExp; |
| BigInt? pubMod; |
| late BigInt privExp; |
| BigInt? privMod; |
| BigInt? privP; |
| BigInt? privQ; |
| BigInt? privDP; |
| BigInt? privDQ; |
| BigInt? privQInv; |
| Uint8List? pt; |
| Uint8List? ct; |
| Uint8List? seed; |
| |
| bool success = false; |
| |
| Vector( |
| String pubExp, |
| String pubMod, |
| String privExp, |
| String privMod, |
| String privP, |
| String privQ, |
| String pt, |
| String ct, |
| String seed, |
| this.success) { |
| this.pubExp = BigInt.parse(pubExp, radix: 10); |
| this.pubMod = BigInt.parse(pubMod, radix: 10); |
| |
| this.privExp = BigInt.parse(privExp, radix: 10); |
| this.privMod = BigInt.parse(privMod, radix: 10); |
| this.privP = BigInt.parse(privP, radix: 10); |
| this.privQ = BigInt.parse(privQ, radix: 10); |
| this.pt = createUint8ListFromHexString(pt); |
| this.ct = createUint8ListFromHexString(ct); |
| this.seed = createUint8ListFromHexString(seed); |
| } |
| |
| RSAPublicKey getPublicKey() { |
| return RSAPublicKey(pubMod!, pubExp!); |
| } |
| |
| RSAPrivateKey getPrivateKey() { |
| return RSAPrivateKey(privMod!, privExp, privP, privQ); |
| } |
| } |
| |
| void rsaesOaepFromBC() { |
| var vectors = [ |
| Vector( |
| '65537', |
| '18329217279129047599928806658090795218965128603117317816991794458216724011503245770495015436599417624674453700179115901853297370103589780033452305875387523631943137116091358449115603692042654878721127101284026952253675215007943515373405972137692442962135092549484760763266587118899791409102037013921404939390181223751472627827705346551953516256888392767851186631216835634474071675505958586396771252034180754174943415153548216160756132208337030301019869021256167058990556822778603285874688909024436599331568169985447428984275783284744039529640106023038139189061819173687874637953173824018096822256369541752055251546359', |
| '871474755355999089390392626250986738823799391600371733795358828322982620807240395820108764521473142171377965573006471919295582727967190359403655722839121773000515971950816682598291363724383365153959321415399361936348199794997512762310343915361546184140454222564269260697601133138406549441719140872775650260752864939310738163191807920999918084807656911787448990430355564553967601350369480153793796995880979379659219366469559690644199335318891335629688926962152206313343604012636149694175054409987470880735437923545376913490821847333390299732957408602797271633303370756312629740218231012737703014343181534686846307393', |
| '18329217279129047599928806658090795218965128603117317816991794458216724011503245770495015436599417624674453700179115901853297370103589780033452305875387523631943137116091358449115603692042654878721127101284026952253675215007943515373405972137692442962135092549484760763266587118899791409102037013921404939390181223751472627827705346551953516256888392767851186631216835634474071675505958586396771252034180754174943415153548216160756132208337030301019869021256167058990556822778603285874688909024436599331568169985447428984275783284744039529640106023038139189061819173687874637953173824018096822256369541752055251546359', |
| '139938602947854926673274376453107989073071827438226512797650594061983297161783711276901852736597785930143401375196002497817729904598157413814575098620989414422686350708665981330220682164718216656819685880412277133946504812497734067927436542166773583464532860288061057630436091686749633450714718228505170499039', |
| '130980422078095429561752625252772990524110726095230822580220780407796115924674034028988759464767902261255001063231695869052365128259353804033624087488011680139885948265015821069772931331044159596841425313188756863343401896929103897656562392424149690632009352791193293004161928133083118699425976206871054587881', |
| '737847bf7c49b797e0a17056e2d8c0a6c2dc8a4c3a255f3e011cf1ddc744025333734a36be34dd4ea4fb187b93580f6844dab0fc89465ed520b56c9cf7f5a448', |
| '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', |
| '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', |
| true), |
| Vector( |
| '65537', |
| '19569948865068536220796258723086637852008297300026106349963994132199477810199047175899658629239003270723655738566573526731538394167442667834888430144306066982129214011881836514687558246034685766252347057089991537170837477708330723082763394365944677788766871193438382040109729808702973595504627972224944777527374865550366057217706136258645711267799610223058431864733347367267901540839952258620469468571043208682852319667438096213018666218650237356899215935657286247127436286944431950409154631150939504050756036262766929390373805529061561721863375350515301920898024498859456381733320558487139634893131924469609086155977', |
| '2682331479434432362441942613253681068177175222726238717291592051680956700788340800148201146707915477212764065880478025348241855901362522307915285195824729895840841008365222194368214349673742673097689404871677395677576641483200448643845352712829234698064385190241521984082208148666045685109467887109626969503204467048981076846824468472108268455623568524243811843709827875184517129418949264059283188441904126749091302309131019673249568789886447460474056002292397200076608255581488013318454785670653593214955554015114552210995629053705858542326148168308882683141875279870689522709904562759304842005687816887434236438205', |
| '19569948865068536220796258723086637852008297300026106349963994132199477810199047175899658629239003270723655738566573526731538394167442667834888430144306066982129214011881836514687558246034685766252347057089991537170837477708330723082763394365944677788766871193438382040109729808702973595504627972224944777527374865550366057217706136258645711267799610223058431864733347367267901540839952258620469468571043208682852319667438096213018666218650237356899215935657286247127436286944431950409154631150939504050756036262766929390373805529061561721863375350515301920898024498859456381733320558487139634893131924469609086155977', |
| '145835548171723582860236439983550505455458319012470930607600001888971140083509449385071620383937906218977079837244074075213020960325842524264393644936862389772991896271099001511991775592998084484547129514354779854138169376007322466721134239392894573044786118173646871095974390695636022494704640684100152620549', |
| '134191897040251275842789384044745185132072042826768949353713249326752714554591714787345489954150944972550569831193756481324390655581570283683976700869116039434467184801636650007449650971637165464898935582726540090128314754515834948172908500679141710373727071021688918409017946527796904483060335428738729149173', |
| '8f16739968fac7fa464ec3877251c8de49757cb248bd59cd9f75c3fee3b74ce6b9ab32be1e5dc1177937fafa4a4d9e171b141efb929e962f0b070eb68ccfc46d', |
| '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', |
| '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', |
| true), |
| Vector( |
| '65537', |
| '25038673729224910830580845003347508937183878430568252243060597923803411041332607392164911183519327652692450873138929631978784266430522568470440784639525241788766657600645728222394583470757090752138061009477637438276248151511155162669718467468969624965875279908416587064343777130044791689157602777585816549468054593978537853426172535223238597429205435261183451278722801708117303065362678921575924256921065606924997047752902527599978846787772561984540047895607090694150885414144427290157212302653880114246899270943264626275367221662673432429915006601395866677114630755313736395334714474264115548734012399991539649701577', |
| '3665330669541655679705891050107041272351615632288084135020867774409707107096521082267758924987236975571329181442186950223483857303017011631037296147755394485725317322370492319355448604186579175173177332036499750880613328403194300042153463650768685468000762418502092438600303825951252273797332066580159719264783444433878126847045099946979594428364397610142426110395907309438977364343811577257119310923578509600802934471264322715095052241970187830259542463962252933510334746936487458581694276279360082463055558123500983154145931168559475784322023134231491373519253341861719350553980757285805374865832745904859709420973', |
| '25038673729224910830580845003347508937183878430568252243060597923803411041332607392164911183519327652692450873138929631978784266430522568470440784639525241788766657600645728222394583470757090752138061009477637438276248151511155162669718467468969624965875279908416587064343777130044791689157602777585816549468054593978537853426172535223238597429205435261183451278722801708117303065362678921575924256921065606924997047752902527599978846787772561984540047895607090694150885414144427290157212302653880114246899270943264626275367221662673432429915006601395866677114630755313736395334714474264115548734012399991539649701577', |
| '158583983905122960678499673913480078252467523039334679557106796515538961502086148476206838376197850276185195302545375580630295818784775624880828695801409778458680887001891232052530710022670791150445348537084374277944129929052319716841620177999129668752076023437539741074161532918847704356315936511958042206421', |
| '157889044736099932616410509564681645236482925020553863320318772062766368147198184049572451248600417630406962137054228993505221845131088005864338734847330895786869459001654903908616676980872205245637285247625574944835533063249009575393914877011929175520203590185877323732215545619943872773049618568385174784037', |
| '6b857a09b8d1f3e9111bc397dec0c2a6f7fbfcfe8c3c57463401da788dea9395b00d9ec7d4afda75ef3d32756fef370b56c15c90423d5fe07976c6f95f94517e', |
| '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', |
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| '3009760472245349683342882818107878001687205932903232336974158463425949274828309026763899120028161426896564143115718358594537169068183092206407674126317833200854781856414688063256976633028284107665269950279280661128747925765975621103504508957959557108591166824741588411519341640165827922253799633491824822800552814589677969741253495771924708369978113475087556860377401252816984294834713005677637192372237846370495254641824801741056216278594303334589468026883698059566723344237904403713305882854473697804438397752310544011957812835892209662075303097763895915619975699566227238069452916258942930328876639365178207104473', |
| '23658251522583925900718741979050794674251803924998997021682209681264940044908292496194981304861842930677076371499230472828807490161501087128196670370793623326467147049337260761819787418143886724324893161193789108053343665478230198531979010923873522545815808119111181976101120608281602943417963008114389614618578904417735537637729593085440099555585319591748940070535005184336494181205787620269807526416530811679279201002952927740931726856120510347220483278642060623286767202239646348666232888334302158044968241201147110380771969014926435886287788992344002905242385801758426435716767719929022228938915368182458157960843', |
| '165590013140540647679878899493586781766816521021707211030299226928354057254308720369878209847888859898233724631502229118806735761559743227567693583847231815630984309079724281063902229464971010008597095518823091793269320318276491211501580861194554544041104616248113938228731470012174045166017739040609317694323', |
| '142872453923320476402895306830517278375549809340340630592712445460110171257915331312785847123442343075420588400083738297854976551803962605231204558017986861050163965265524357718201406139658856221141247812078006843972911985901189697463372854609424778354342963924485270938382783906372282727789585474600365423241', |
| '65c44a86df668a5f20dab63d01d07a20fa27f4c4ab838fb64457dec754f64e1c0b9b847a46d17af6cae81cef822ec73be025273d7992a83e1a79341bbd9d8395', |
| '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', |
| '54b5e2340613f23fff9ec8120c331416cc221da97472df2b4caeb0d3ee111c1d2b4c95075d669ed043cb3379cedab73a4d793329adefec66353929b6057716954873be42184479b9944ea52b2f28eafc8b7242042fa951265bb04250e65dca7c4fffa73aa5319734d4b4cb0dc69461de8f16da93e9e46c9d351bba142982d6405607d85abb9cf4516fbe4c7f556aa97a7110b250644639952496b18664707257a7e4c90706849cd2796c48969edf91e2c202a49fcfae610bd16ba7f5f166c61fbcce54e1365e14e1aef3d560dd62c66543368526f3776411bc517cfe1e14dd2f777ac6a88d909cc3f76978409e3e703ef529c1b988a8b1b9528dabd0979d0ea7cf0e7aa65450cd682dd8a6dfd1cc017ef66ee65840f4f3bed3e7d19531fc36e20875828e80b02046e724c2dc1f2945e31b3ccaa81d4062f0930607145fdd97cef74b807b088ffe9caf9021ddb50925d4a3c08588d9305a5570568f92fab762a80e3a9083c1b93a977199db26195fdc1be12afd507ca7ad7c008d5551a91ffa2081ec182cc1cf816792e9920c75b8e46837dba4e0719d4bca7c81aa85283593c8290155f22df7348d403ea3b3b22bda47c0fa0a338a52ed3eea172f0d723ef904107a228593dfa355bde6d6f33c0fcde92b741c3c5a6b7bd5bf0940131fb63739b9b659d889733cf56ed60005dccc0e431b827d3d7cb028d44a231047d8a8f100d9d724dda26622ed81ad900a90310000d4c273bc8e584092db92b6b78d1fbe9a69fabc47c5d530edf68eb303be4165b1826af3330657d72d8af4787782a48d09733817fb6f6c31f6703a42d0b1e463368424fed9b48f1da40beea3917d21cdc193945fc947f33bd82650d07b35e1bf49469991479a9d85c643352e2811f3dddeabc066d9c9cb1809d03330afc9fb1b4ddab186e3576644ffeb3a6a8853303685a7d84a752c673fb0184c39682cee2e4d45295a62e70350c44657591f13e15cb6dc073f6359f798c05426d15db2bb38341966ec887b91bcd39c623d1411c35815439014040d80b8672d1bda60d401cff9ab7fd7ba23b15b31cde2c3b28a8001e8ec7e574b0b040ad3b19cca85b0331be7567b54eca040e765ef0535819932bfc47a1b4588db44b00fe60403d1dcb919c2d33a1bf7d8e160d6010c142fe5bc4f8f0bb158eb65984697d1a978d7691d748b65331c547f689bbb5eeef9a6c3e00c5cc68047421d9b8d834956bab23e70c244cdd030c5ac923a502081bb0fc953877a8912a10e39394d62497e5acb80cd91c930eb848712e7e99ef472ecb62601e81f152de086eb00d119675a86831f0385397ba00849b028fce1dc0116edaef527af73e456625b4cd0e0690d4a910802e1901b47cdec199d96e15029979add7a503567dd7a967022b118158feb35734ec8146b16ffad012ef1394911d28292e7d2c6', |
| true), |
| Vector( |
| '65537', |
| '22863777756836055143600959840749450920440384456704349962957955148144126897132094433370209548824375989844046076857133821371508636666850758882851578033383651783618422036072419632732686157582055405562109922709901326246966123012779940638801924989478425633471958572537119027807706692988780579411816688566224513817250774335575958505773698753128001893291209436871060294845040743647053132079832745308356830002298113861195640612128927309500368668049733940067477120484141937395209454551385139891613730504379058183817440947369052529753197836772372884439231897004397488834752501181030419040390355982635808334470641448749691416183', |
| '2255607597034095465629369758310047376689615113673527544524538184694536711375368975677176096524467140124459159099742110900369090595686765972764650163645604782138103783728675849297849800141092500795914089831406183146158040013109063677009534248126596593271174270270820194306891185490928190734807830689914469598600353406030453644843169521306845973935112914753357995065221191706901453116661352835469169409508970115248018229509809404657743355036733922945836679716996092794994744403038571209570423722421262617433701221885865122225656585415125141317614483711216050572551407767136716392847862790147219388705010554043573130093', |
| '22863777756836055143600959840749450920440384456704349962957955148144126897132094433370209548824375989844046076857133821371508636666850758882851578033383651783618422036072419632732686157582055405562109922709901326246966123012779940638801924989478425633471958572537119027807706692988780579411816688566224513817250774335575958505773698753128001893291209436871060294845040743647053132079832745308356830002298113861195640612128927309500368668049733940067477120484141937395209454551385139891613730504379058183817440947369052529753197836772372884439231897004397488834752501181030419040390355982635808334470641448749691416183', |
| '165753605475658965896905380941512780373501918722623039928392212300384638200828754218945657927975147434007515408820867595182498678712848089093708745610029028514780605885496621852402727633970979135328953451658504203008039089814570880017893747801344491417093420169338769217963611664808574246257897284558430343541', |
| '137938343429842417908376247774337756675267630407222666317251541029569965860036381348765753221799669784544962152131139297790992522931746092548078408342093276445880775981341485116526468109550869527376048089827949530781527838543749512497666287942212179789741424088818092906786749935663701944131037153077866559163', |
| '65e8ffb8dde91e1bd267f02e337dcb32caaad90360d2173008ee7766b5622a0a1c9cc3d8c58896baef60c0ad14454da97710797a52ac328af787cead7e90bc05', |
| '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', |
| '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', |
| true), |
| ]; |
| |
| test('RSAESOAEP decryption vectors from BC', () { |
| vectors.forEach((Vector v) { |
| var rsaesOaep = OAEPEncoding(RSAEngine()); |
| rsaesOaep.init( |
| false, PrivateKeyParameter<RSAPrivateKey>(v.getPrivateKey())); |
| final output = Uint8List(v.pt!.length); |
| final size = rsaesOaep.processBlock(v.ct!, 0, v.ct!.length, output, 0); |
| expect(output, equals(v.pt, size)); |
| }); |
| }); |
| |
| test('RSAESOAEP encryption vectors from BC', () { |
| vectors.forEach((Vector v) { |
| var rng = _OAEPTestEntropySource(); |
| rng.seed(KeyParameter(v.seed!)); |
| |
| var rsaesOaep = OAEPEncoding(RSAEngine()); |
| rsaesOaep.init( |
| true, |
| ParametersWithRandom( |
| PublicKeyParameter<RSAPublicKey>(v.getPublicKey()), rng)); |
| final output = Uint8List(v.ct!.length); |
| final size = rsaesOaep.processBlock(v.pt!, 0, v.pt!.length, output, 0); |
| expect(output, equals(v.ct, size)); |
| }); |
| }); |
| } |
| |
| // ---- |
| |
| /// |
| /// For testing only. |
| /// Reads through the seed and then resets to the beginning of |
| /// the seed when exhausted. |
| /// |
| class _OAEPTestEntropySource extends SecureRandomBase { |
| var _next = 0; |
| Uint8List? _values; |
| |
| static final FactoryConfig factoryConfig = StaticFactoryConfig( |
| SecureRandom, '_oaep_rand', () => _OAEPTestEntropySource()); |
| |
| @override |
| String get algorithmName => '_oaep_rand'; |
| |
| @override |
| BigInt nextBigInteger(int bitLength) { |
| throw UnimplementedError(); |
| } |
| |
| @override |
| int nextUint8() { |
| if (_values != null && _values!.isNotEmpty) { |
| if (_next >= _values!.length) { |
| _next = 0; |
| } |
| return _values![_next++]; |
| } else { |
| return 0; |
| } |
| } |
| |
| @override |
| void seed(covariant KeyParameter params) { |
| _values = (params).key; |
| _next = 0; |
| } |
| } |
