wasSharpNET – Blame information for rev 27
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2 | office | 1 | /////////////////////////////////////////////////////////////////////////// |
2 | // Copyright (C) Wizardry and Steamworks 2016 - License: GNU GPLv3 // |
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3 | // Please see: http://www.gnu.org/licenses/gpl.html for legal details, // |
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4 | // rights of fair usage, the disclaimer and warranty conditions. // |
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5 | /////////////////////////////////////////////////////////////////////////// |
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6 | |||
7 | using System; |
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27 | office | 8 | using System.Collections.Generic; |
10 | office | 9 | using System.IO; |
27 | office | 10 | using System.Linq; |
5 | office | 11 | using System.Text; |
10 | office | 12 | using System.Threading.Tasks; |
2 | office | 13 | |
14 | namespace wasSharpNET.Cryptography |
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15 | { |
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16 | public static class SHA1 |
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17 | { |
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18 | /// <summary> |
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19 | /// Return a 40 character hex representation of a SHA1 hash. |
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20 | /// </summary> |
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21 | /// <param name="sha1">the SHA1 hash object</param> |
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13 | office | 22 | /// <param name="data">the byte data to compute the hash from</param> |
2 | office | 23 | public static string ToHex(this System.Security.Cryptography.SHA1 sha1, byte[] data) |
24 | { |
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25 | return BitConverter.ToString(sha1.ComputeHash(data)).Replace("-", ""); |
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26 | } |
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5 | office | 27 | |
13 | office | 28 | /// <summary> |
27 | office | 29 | /// Return a 40 character hex representation of a SHA1 hash from multiple sequential byte arrays. |
30 | /// </summary> |
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31 | /// <param name="sha1">the SHA1 hash object</param> |
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32 | /// <param name="data">the byte data to compute the hash from</param> |
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33 | public static string ToHex(this System.Security.Cryptography.SHA1 sha1, IEnumerable<byte[]> data) |
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34 | { |
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35 | return sha1.ToHex(data.Where(i => i != null).SelectMany(i => i).ToArray()); |
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36 | } |
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37 | |||
38 | /// <summary> |
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13 | office | 39 | /// Return a 40 character hex representation of a SHA1 hash. |
40 | /// </summary> |
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41 | /// <param name="sha1">the SHA1 hash object</param> |
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42 | /// <param name="data">the string data to compute the hash from</param> |
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5 | office | 43 | public static string ToHex(this System.Security.Cryptography.SHA1 sha1, string data) |
44 | { |
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45 | return BitConverter.ToString(sha1.ComputeHash(Encoding.UTF8.GetBytes(data))).Replace("-", ""); |
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46 | } |
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10 | office | 47 | |
13 | office | 48 | /// <summary> |
49 | /// Return a 40 character hex representation of a SHA1 hash. |
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50 | /// </summary> |
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51 | /// <param name="sha1">the SHA1 hash object</param> |
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52 | /// <param name="data">the memorystream to compute the hash from</param> |
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14 | office | 53 | public static string ToHex(this System.Security.Cryptography.SHA1 sha1, Stream data) |
13 | office | 54 | { |
55 | return BitConverter.ToString(sha1.ComputeHash(data)).Replace("-", ""); |
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56 | } |
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57 | |||
14 | office | 58 | /// <summary> |
59 | /// Return a 40 character hex representation of a SHA1 hash. |
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60 | /// </summary> |
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61 | /// <param name="sha1">the SHA1 hash object</param> |
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62 | /// <param name="data">a filestream to read the file from</param> |
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63 | public static string ToHex(this System.Security.Cryptography.SHA1 sha1, FileStream data) |
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64 | { |
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65 | return BitConverter.ToString(sha1.ComputeHash(data)).Replace("-", ""); |
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66 | } |
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67 | |||
10 | office | 68 | /////////////////////////////////////////////////////////////////////////// |
69 | // Copyright (C) Wizardry and Steamworks 2014 - License: GNU GPLv3 // |
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70 | /////////////////////////////////////////////////////////////////////////// |
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71 | /// <summary> |
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72 | /// Compute the SHA1 hash of an array of bytes and copy the result to the output stream as a hexadecimal string. |
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73 | /// </summary> |
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74 | /// <param name="sha1">the SHA1 object to use</param> |
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75 | /// <param name="data">the data to hash</param> |
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76 | /// <param name="outStream">the output stream</param> |
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77 | public static async Task CopyToAsync(this System.Security.Cryptography.SHA1 sha1, byte[] data, Stream outStream) |
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78 | { |
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79 | var buffer = new char[1]; |
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27 | office | 80 | using (var SHA1OutputStream = new MemoryStream()) |
10 | office | 81 | { |
27 | office | 82 | using (var SHA1InputStream = |
83 | new StringReader(BitConverter.ToString(sha1.ComputeHash(data)).Replace("-", ""))) |
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10 | office | 84 | { |
85 | int count; |
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86 | while ((count = await SHA1InputStream.ReadAsync(buffer, 0, 1)) != 0) |
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87 | switch (buffer[0]) |
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88 | { |
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89 | case '-': |
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90 | continue; |
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91 | default: |
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27 | office | 92 | SHA1OutputStream.WriteByte((byte) buffer[0]); |
10 | office | 93 | break; |
94 | } |
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95 | } |
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96 | SHA1OutputStream.Position = 0L; |
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97 | await SHA1OutputStream.CopyToAsync(outStream); |
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98 | } |
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99 | } |
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2 | office | 100 | } |
27 | office | 101 | } |