| | | 1 | | // Copyright (c) Microsoft Corporation. All rights reserved. |
| | | 2 | | // Licensed under the MIT License. See License.txt in the project root for |
| | | 3 | | // license information. |
| | | 4 | | |
| | | 5 | | using System; |
| | | 6 | | using System.Linq; |
| | | 7 | | using System.Security.Cryptography; |
| | | 8 | | |
| | | 9 | | namespace Microsoft.Azure.KeyVault.Cryptography.Algorithms |
| | | 10 | | { |
| | | 11 | | public class Rsa15 : RsaEncryption |
| | | 12 | | { |
| | | 13 | | public const string AlgorithmName = "RSA_15"; |
| | | 14 | | |
| | | 15 | | public Rsa15() |
| | 2 | 16 | | : base( AlgorithmName ) |
| | | 17 | | { |
| | 2 | 18 | | } |
| | | 19 | | |
| | | 20 | | public override ICryptoTransform CreateEncryptor( AsymmetricAlgorithm key ) |
| | | 21 | | { |
| | 4 | 22 | | RSA csp = key as RSA; |
| | | 23 | | |
| | 4 | 24 | | if ( csp == null ) |
| | 0 | 25 | | throw new ArgumentException( "key must be an instance of RSA", "key" ); |
| | | 26 | | |
| | 4 | 27 | | return new Rsa15Encryptor( csp ); |
| | | 28 | | } |
| | | 29 | | |
| | | 30 | | public override ICryptoTransform CreateDecryptor( AsymmetricAlgorithm key ) |
| | | 31 | | { |
| | 4 | 32 | | RSA csp = key as RSA; |
| | | 33 | | |
| | 4 | 34 | | if ( csp == null ) |
| | 0 | 35 | | throw new ArgumentException( "key must be an instance of RSA", "key" ); |
| | | 36 | | |
| | 4 | 37 | | return new Rsa15Decryptor( csp ); |
| | | 38 | | } |
| | | 39 | | |
| | | 40 | | /// <summary> |
| | | 41 | | /// RSA 15 Decryptor |
| | | 42 | | /// </summary> |
| | | 43 | | /// <remarks> |
| | | 44 | | /// While this class has a reference to an IDisposable object, |
| | | 45 | | /// it is not the owner of the object and will not Dispose it. |
| | | 46 | | /// </remarks> |
| | | 47 | | class Rsa15Decryptor : ICryptoTransform |
| | | 48 | | { |
| | | 49 | | private readonly RSA _csp; |
| | | 50 | | |
| | 4 | 51 | | internal Rsa15Decryptor( RSA csp ) |
| | | 52 | | { |
| | 4 | 53 | | _csp = csp; |
| | 4 | 54 | | } |
| | | 55 | | |
| | | 56 | | public bool CanReuseTransform |
| | | 57 | | { |
| | 0 | 58 | | get { throw new NotImplementedException(); } |
| | | 59 | | } |
| | | 60 | | |
| | | 61 | | public bool CanTransformMultipleBlocks |
| | | 62 | | { |
| | 0 | 63 | | get { throw new NotImplementedException(); } |
| | | 64 | | } |
| | | 65 | | |
| | | 66 | | public int InputBlockSize |
| | | 67 | | { |
| | 0 | 68 | | get { throw new NotImplementedException(); } |
| | | 69 | | } |
| | | 70 | | |
| | | 71 | | public int OutputBlockSize |
| | | 72 | | { |
| | 0 | 73 | | get { throw new NotImplementedException(); } |
| | | 74 | | } |
| | | 75 | | |
| | | 76 | | public int TransformBlock( byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int out |
| | | 77 | | { |
| | 0 | 78 | | throw new NotImplementedException(); |
| | | 79 | | } |
| | | 80 | | |
| | | 81 | | public byte[] TransformFinalBlock( byte[] inputBuffer, int inputOffset, int inputCount ) |
| | | 82 | | { |
| | 4 | 83 | | byte[] block = inputBuffer.Skip( inputOffset ).Take( inputCount ).ToArray(); |
| | | 84 | | |
| | | 85 | | #if FullNetFx |
| | | 86 | | if ( _csp is RSACryptoServiceProvider ) |
| | | 87 | | { |
| | | 88 | | return ( ( RSACryptoServiceProvider )_csp ).Decrypt( block, false ); |
| | | 89 | | } |
| | | 90 | | |
| | | 91 | | throw new CryptographicException( string.Format( "{0} is not supported", _csp.GetType().FullName ) ); |
| | | 92 | | #elif NETSTANDARD |
| | 4 | 93 | | return _csp.Decrypt( block, RSAEncryptionPadding.Pkcs1 ); |
| | | 94 | | #else |
| | | 95 | | #error Unknown Framework |
| | | 96 | | #endif |
| | | 97 | | } |
| | | 98 | | |
| | | 99 | | public void Dispose() |
| | | 100 | | { |
| | | 101 | | // Intentionally empty |
| | 4 | 102 | | } |
| | | 103 | | } |
| | | 104 | | |
| | | 105 | | /// <summary> |
| | | 106 | | /// RSA 15 Encryptor |
| | | 107 | | /// </summary> |
| | | 108 | | /// <remarks> |
| | | 109 | | /// While this class has a reference to an IDisposable object, |
| | | 110 | | /// it is not the owner of the object and will not Dispose it. |
| | | 111 | | /// </remarks> |
| | | 112 | | class Rsa15Encryptor : ICryptoTransform |
| | | 113 | | { |
| | | 114 | | private readonly RSA _csp; |
| | | 115 | | |
| | 4 | 116 | | internal Rsa15Encryptor( RSA csp ) |
| | | 117 | | { |
| | 4 | 118 | | _csp = csp; |
| | 4 | 119 | | } |
| | | 120 | | |
| | | 121 | | public bool CanReuseTransform |
| | | 122 | | { |
| | 0 | 123 | | get { throw new NotImplementedException(); } |
| | | 124 | | } |
| | | 125 | | |
| | | 126 | | public bool CanTransformMultipleBlocks |
| | | 127 | | { |
| | 0 | 128 | | get { throw new NotImplementedException(); } |
| | | 129 | | } |
| | | 130 | | |
| | | 131 | | public int InputBlockSize |
| | | 132 | | { |
| | 0 | 133 | | get { throw new NotImplementedException(); } |
| | | 134 | | } |
| | | 135 | | |
| | | 136 | | public int OutputBlockSize |
| | | 137 | | { |
| | 0 | 138 | | get { throw new NotImplementedException(); } |
| | | 139 | | } |
| | | 140 | | |
| | | 141 | | public int TransformBlock( byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int out |
| | | 142 | | { |
| | 0 | 143 | | throw new NotImplementedException(); |
| | | 144 | | } |
| | | 145 | | |
| | | 146 | | public byte[] TransformFinalBlock( byte[] inputBuffer, int inputOffset, int inputCount ) |
| | | 147 | | { |
| | 4 | 148 | | byte[] block = inputBuffer.Skip( inputOffset ).Take( inputCount ).ToArray(); |
| | | 149 | | |
| | | 150 | | #if FullNetFx |
| | | 151 | | if ( _csp is RSACryptoServiceProvider ) |
| | | 152 | | { |
| | | 153 | | return ( ( RSACryptoServiceProvider )_csp ).Encrypt( block, false ); |
| | | 154 | | } |
| | | 155 | | |
| | | 156 | | throw new CryptographicException( string.Format( "{0} is not supported", _csp.GetType().FullName ) ); |
| | | 157 | | #elif NETSTANDARD |
| | 4 | 158 | | return _csp.Encrypt( block, RSAEncryptionPadding.Pkcs1 ); |
| | | 159 | | #else |
| | | 160 | | #error Unknown Framework |
| | | 161 | | #endif |
| | | 162 | | } |
| | | 163 | | |
| | | 164 | | public void Dispose() |
| | | 165 | | { |
| | | 166 | | // Intentionally empty |
| | 4 | 167 | | } |
| | | 168 | | } |
| | | 169 | | } |
| | | 170 | | } |