94 lines
2.9 KiB
C#
94 lines
2.9 KiB
C#
using System.Security.Cryptography;
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using System.Text;
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namespace JNPF.Common.Security
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{
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/// <summary>
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/// 字符串Hash操作类.
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/// </summary>
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public static class HashHelper
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{
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/// <summary>
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/// 获取字符串的MD5哈希值，默认编码为<see cref="Encoding.UTF8"/>.
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/// </summary>
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public static string GetMd5(string value, Encoding? encoding = null)
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{
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if (encoding == null)
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encoding = Encoding.UTF8;
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byte[] bytes = encoding.GetBytes(value);
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return GetMd5(bytes);
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}
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/// <summary>
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/// 获取字节数组的MD5哈希值.
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/// </summary>
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public static string GetMd5(byte[] bytes)
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{
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StringBuilder sb = new StringBuilder();
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MD5 hash = MD5.Create();
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bytes = hash.ComputeHash(bytes);
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foreach (byte b in bytes)
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{
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sb.AppendFormat("{0:x2}", b);
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}
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return sb.ToString();
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}
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/// <summary>
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/// 获取字符串的SHA1哈希值，默认编码为<see cref="Encoding.UTF8"/>.
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/// </summary>
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public static string GetSha1(string value, Encoding? encoding = null)
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{
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StringBuilder sb = new StringBuilder();
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SHA1 hash = SHA1.Create();
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if (encoding == null)
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encoding = Encoding.UTF8;
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byte[] bytes = hash.ComputeHash(encoding.GetBytes(value));
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foreach (byte b in bytes)
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{
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sb.AppendFormat("{0:x2}", b);
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}
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return sb.ToString();
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}
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/// <summary>
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/// 获取字符串的Sha256哈希值，默认编码为<see cref="Encoding.UTF8"/>.
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/// </summary>
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public static string GetSha256(string value, Encoding? encoding = null)
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{
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StringBuilder sb = new StringBuilder();
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SHA256 hash = SHA256.Create();
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if (encoding == null)
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encoding = Encoding.UTF8;
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byte[] bytes = hash.ComputeHash(encoding.GetBytes(value));
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foreach (byte b in bytes)
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{
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sb.AppendFormat("{0:x2}", b);
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}
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return sb.ToString();
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}
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/// <summary>
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/// 获取字符串的Sha512哈希值，默认编码为<see cref="Encoding.UTF8"/>.
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/// </summary>
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public static string GetSha512(string value, Encoding? encoding = null)
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{
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StringBuilder sb = new StringBuilder();
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SHA512 hash = SHA512.Create();
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if (encoding == null)
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encoding = Encoding.UTF8;
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byte[] bytes = hash.ComputeHash(encoding.GetBytes(value));
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foreach (byte b in bytes)
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{
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sb.AppendFormat("{0:x2}", b);
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}
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return sb.ToString();
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}
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}
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} |