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Universally Unique Identifier (UUID) / Globally Unique Identifier (GUID) implementation based on RFC 4122 This will replaced all reference to System.Guid. Create UUIDv3.cs Class Library to generate Universally Unique Identifier (UUID) / Globally Unique Identifier (GUID) based on Version 3 (MD5 Namespace name-based). Relying on System.Security.Cryptography.MD5 for the hashing algorithm. Create UUIDv5.cs Class Library to generate Universally Unique Identifier (UUID) / Globally Unique Identifier (GUID) based on Version 5 (SHA-1 Namespace name-based). Relying on System.Security.Cryptography.SHA1 for the hashing algorithm.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| namespace TensionDev.UUID | ||
| { | ||
| /// <summary> | ||
| /// Class Library to generate Universally Unique Identifier (UUID) / Globally Unique Identifier (GUID) based on Version 3 (MD5 namespace name-based). | ||
| /// </summary> | ||
| public class UUIDNamespace | ||
| { | ||
| /// <summary> | ||
| /// Namespace for Domain Name System | ||
| /// </summary> | ||
| public static Uuid DNS = new Uuid(0x6ba7b810, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8); | ||
| /// <summary> | ||
| /// Namespace for URLs | ||
| /// </summary> | ||
| public static Uuid URL = new Uuid(0x6ba7b811, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8); | ||
| /// <summary> | ||
| /// Namespace for ISO Object IDs (OIDs) | ||
| /// </summary> | ||
| public static Uuid OID = new Uuid(0x6ba7b812, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8); | ||
| /// <summary> | ||
| /// Namespace for X.500 Distinguished Names(DNs) | ||
| /// </summary> | ||
| public static Uuid X500 = new Uuid(0x6ba7b814, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| using System; | ||
| using System.Security.Cryptography; | ||
| using System.Text; | ||
|
|
||
| namespace TensionDev.UUID | ||
| { | ||
| /// <summary> | ||
| /// Class Library to generate Universally Unique Identifier (UUID) / Globally Unique Identifier (GUID) based on Version 3 (MD5 namespace name-based). | ||
| /// </summary> | ||
| public class UUIDv3 | ||
| { | ||
| /// <summary> | ||
| /// Initialises a new GUID/UUID based on Version 3 (MD5 namespace name-based) | ||
| /// </summary> | ||
| /// <returns>A new Uuid object</returns> | ||
| public static Uuid NewUUIDv3(Uuid nameSpace, String name) | ||
| { | ||
| Byte[] nsArray = nameSpace.ToByteArray(); | ||
| Byte[] nArray = Encoding.UTF8.GetBytes(name); | ||
|
|
||
| Byte[] buffer = new Byte[nsArray.Length + nArray.Length]; | ||
| Buffer.BlockCopy(nsArray, 0, buffer, 0, nsArray.Length); | ||
| Buffer.BlockCopy(nArray, 0, buffer, nsArray.Length, nArray.Length); | ||
|
|
||
| Byte[] hash; | ||
| using (MD5 md5 = MD5.Create()) | ||
| { | ||
| hash = md5.ComputeHash(buffer); | ||
| } | ||
|
|
||
| Byte[] hex = new Byte[16]; | ||
|
|
||
| hex[0] = hash[0]; | ||
| hex[1] = hash[1]; | ||
| hex[2] = hash[2]; | ||
| hex[3] = hash[3]; | ||
|
|
||
| hex[4] = hash[4]; | ||
| hex[5] = hash[5]; | ||
|
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| hex[6] = (Byte)((hash[6] & 0x0F) + 0x30); | ||
| hex[7] = hash[7]; | ||
|
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| hex[8] = (Byte)((hash[8] & 0x3F) + 0x80); | ||
| hex[9] = hash[9]; | ||
|
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| hex[10] = hash[10]; | ||
| hex[11] = hash[11]; | ||
| hex[12] = hash[12]; | ||
| hex[13] = hash[13]; | ||
| hex[14] = hash[14]; | ||
| hex[15] = hash[15]; | ||
|
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| Uuid Id = new Uuid(hex); | ||
|
|
||
| return Id; | ||
| } | ||
| } | ||
| } |
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