wasSharpNET – Blame information for rev 13
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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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10 | office | 8 | using System.IO; |
5 | office | 9 | using System.Text; |
10 | office | 10 | using System.Threading.Tasks; |
2 | office | 11 | |
12 | namespace wasSharpNET.Cryptography |
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13 | { |
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14 | public static class SHA1 |
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15 | { |
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16 | /// <summary> |
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17 | /// Return a 40 character hex representation of a SHA1 hash. |
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18 | /// </summary> |
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19 | /// <param name="sha1">the SHA1 hash object</param> |
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13 | office | 20 | /// <param name="data">the byte data to compute the hash from</param> |
2 | office | 21 | public static string ToHex(this System.Security.Cryptography.SHA1 sha1, byte[] data) |
22 | { |
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23 | return BitConverter.ToString(sha1.ComputeHash(data)).Replace("-", ""); |
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24 | } |
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5 | office | 25 | |
13 | office | 26 | /// <summary> |
27 | /// Return a 40 character hex representation of a SHA1 hash. |
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28 | /// </summary> |
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29 | /// <param name="sha1">the SHA1 hash object</param> |
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30 | /// <param name="data">the string data to compute the hash from</param> |
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5 | office | 31 | public static string ToHex(this System.Security.Cryptography.SHA1 sha1, string data) |
32 | { |
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33 | return BitConverter.ToString(sha1.ComputeHash(Encoding.UTF8.GetBytes(data))).Replace("-", ""); |
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34 | } |
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10 | office | 35 | |
13 | office | 36 | /// <summary> |
37 | /// Return a 40 character hex representation of a SHA1 hash. |
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38 | /// </summary> |
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39 | /// <param name="sha1">the SHA1 hash object</param> |
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40 | /// <param name="data">the memorystream to compute the hash from</param> |
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41 | public static string ToHex(this System.Security.Cryptography.SHA1 sha1, MemoryStream data) |
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42 | { |
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43 | return BitConverter.ToString(sha1.ComputeHash(data)).Replace("-", ""); |
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44 | } |
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45 | |||
10 | office | 46 | /////////////////////////////////////////////////////////////////////////// |
47 | // Copyright (C) Wizardry and Steamworks 2014 - License: GNU GPLv3 // |
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48 | /////////////////////////////////////////////////////////////////////////// |
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49 | /// <summary> |
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50 | /// 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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51 | /// </summary> |
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52 | /// <param name="sha1">the SHA1 object to use</param> |
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53 | /// <param name="data">the data to hash</param> |
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54 | /// <param name="outStream">the output stream</param> |
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55 | public static async Task CopyToAsync(this System.Security.Cryptography.SHA1 sha1, byte[] data, Stream outStream) |
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56 | { |
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57 | var buffer = new char[1]; |
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58 | using (MemoryStream SHA1OutputStream = new MemoryStream()) |
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59 | { |
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60 | using (StringReader SHA1InputStream = new StringReader(BitConverter.ToString(sha1.ComputeHash(data)).Replace("-", ""))) |
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61 | { |
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62 | int count; |
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63 | while ((count = await SHA1InputStream.ReadAsync(buffer, 0, 1)) != 0) |
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64 | { |
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65 | switch (buffer[0]) |
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66 | { |
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67 | case '-': |
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68 | continue; |
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69 | default: |
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70 | SHA1OutputStream.WriteByte((byte)buffer[0]); |
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71 | break; |
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72 | } |
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73 | } |
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74 | } |
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75 | SHA1OutputStream.Position = 0L; |
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76 | await SHA1OutputStream.CopyToAsync(outStream); |
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77 | } |
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78 | } |
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2 | office | 79 | } |
11 | office | 80 | } |