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xchacha20

ChaCha is a family of stream ciphers developed by Daniel J. Bernstein. It is part of the popular authenticated encryption algorithm ChaCha20-Poly1305.

The canonical 20-round version is ChaCha20, though the faster, reduced-round variants ChaCha8 and ChaCha12 also see some use.

The XChaCha family features an extended nonce.

Here are 12 public repositories matching this topic...

samuel-lucas6 / Geralt

A modern cryptographic library for .NET 8+ based on libsodium and inspired by Monocypher.

Updated May 17, 2026
C#

HMBSbige / CryptoBase

A fast crypto library for .NET

hex cryptography aes base32 rc4 gcm hmac hkdf chacha20-poly1305 xsalsa20 salsa20 xts chacha20 crc32 sm3 sm4 xchacha20-poly1305 xchacha20

Updated May 1, 2026
C#

samuel-lucas6 / ChaCha20-BLAKE3

Committing ChaCha20-BLAKE3, XChaCha20-BLAKE3, and XChaCha20-BLAKE3-SIV AEAD implementations.

cryptography crypto encryption aead libsodium chacha20 authenticated-encryption libsodium-net xchacha20 blake3 libsodium-core xchacha20-siv chacha20-blake3 xchacha20-blake3 xchacha20-blake3-siv

Updated Apr 11, 2022
C#

samuel-lucas6 / DoubleSec

A simple, double-paranoid encryption library inspired by TripleSec.

security cryptography crypto encryption aes libsodium hmac blake2b triplesec cascade-encryption aes-ctr libsodium-net hmac-sha512 xchacha20 multiple-encryption libsodium-core cascade-encryption-scheme blake2b-512

Updated Apr 11, 2022
C#

samuel-lucas6 / ChaCha20-BLAKE2b

Committing ChaCha20-BLAKE2b, XChaCha20-BLAKE2b, and XChaCha20-BLAKE2b-SIV AEAD implementations.

cryptography crypto encryption aead libsodium blake2b blake2 chacha20 authenticated-encryption blake2b-hash-algorithm libsodium-net xchacha20 libsodium-core blake2b-key xchacha20-siv chacha20-blake2b xchacha20-blake2b xchacha20-blake2b-siv

Updated Apr 11, 2022
C#

samuel-lucas6 / XXChaCha20-Poly1305-SIV

A key-committing, misuse-resistant AEAD scheme based on ChaCha20-Poly1305-PSIV and Daence.

chacha20-poly1305 poly1305 chacha20 xchacha20-poly1305 xchacha20 xchacha20-siv hchacha20 daence chacha20-poly1305-psiv

Updated Feb 24, 2025
C#

samuel-lucas6 / Daence.NET

A .NET implementation of ChaCha-Daence.

cryptography crypto aead siv poly1305 chacha20 xchacha20 hchacha20 daence

Updated Jun 7, 2023
C#

samuel-lucas6 / FXChaCha20

Feed-forward XChaCha20.

chacha20 xchacha20 hchacha20 xxchacha20

Updated Mar 9, 2025
C#

samuel-lucas6 / XChaCha20-SIV.NET

A .NET implementation of XChaCha20-SIV.

cryptography crypto siv blake2b blake2 xchacha20 s2v xchacha20-siv

Updated Feb 2, 2025
C#

samuel-lucas6 / XChaCha20-HMAC-SHA256-SIV

A .NET implementation of XChaCha20-HMAC-SHA256-SIV.

aead siv hmac sha256 hmac-sha256 xchacha20 s2v mrae xchacha20-siv

Updated May 11, 2025
C#

Chewhern / SimpleSoftHSM

This library will demonstrate and show how a Software based HSM might work in a simple manner.

ed25519 xsalsa20 softhsm hmac-sha512 xchacha20 ed448

Updated Oct 24, 2025
C#

samuel-lucas6 / HChaCha20.NET

A .NET implementation of HChaCha20.

chacha20 xchacha20 hchacha20

Updated Aug 16, 2022
C#

Followers: 1 follower
Website: github.com/topics/chacha-cipher
Wikipedia: Wikipedia