d3aed20843
This allows us to drop the cuid.net dependency and is ~6x faster while improving security (cuid2 is dubious at best in this regard). We may switch to ULID or UUIDv7 in the future for even higher performance, but this change allows for improving performance and security without any side effects.
34 lines
No EOL
1.3 KiB
C#
34 lines
No EOL
1.3 KiB
C#
using System.Security.Cryptography;
|
|
|
|
namespace Iceshrimp.Backend.Core.Helpers;
|
|
|
|
public static class CryptographyHelpers
|
|
{
|
|
public static string GenerateRandomHexString(int length)
|
|
=> RandomNumberGenerator.GetHexString(length, true);
|
|
|
|
public static string GenerateRandomString(int length, Charset charset = Charset.AlphaNum)
|
|
=> RandomNumberGenerator.GetString(GetCharset(charset), length);
|
|
|
|
public enum Charset
|
|
{
|
|
AlphaNum,
|
|
AlphaNumLower,
|
|
CrockfordBase32,
|
|
CrockfordBase32Lower
|
|
}
|
|
|
|
private static string GetCharset(Charset charset) => charset switch
|
|
{
|
|
Charset.AlphaNum => AlphaNumCharset,
|
|
Charset.AlphaNumLower => AlphaNumLowerCharset,
|
|
Charset.CrockfordBase32 => CrockfordBase32Charset,
|
|
Charset.CrockfordBase32Lower => CrockfordBase32LowerCharset,
|
|
_ => throw new ArgumentOutOfRangeException(nameof(charset), charset, null)
|
|
};
|
|
|
|
private const string AlphaNumCharset = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
|
|
private const string AlphaNumLowerCharset = "abcdefghijklmnopqrstuvwxyz0123456789";
|
|
private const string CrockfordBase32Charset = "0123456789ABCDEFGHJKMNPQRSTVWXYZ";
|
|
private const string CrockfordBase32LowerCharset = "0123456789abcdefghjkmnpqrstvwxyz";
|
|
} |