chacha20

package

v1.0.1 Latest Latest Go to latest Published: Oct 24, 2025 License: MIT Imports: 1 Imported by: 0

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const (
	BlockSize = 64
	Rounds    = 20
	KeySize   = 32
	NonceSize = 12
)

This section is empty.

func DerivePoly1305Key(out *[32]byte, key, nonce []byte)

DerivePoly1305Key derives the Poly1305 key for ChaCha20-Poly1305.

func HChaCha20(out *[32]byte, key, nonce []byte)

HChaCha20 derives a subkey from key and 16-byte nonce, as defined in RFC 8439.

func XORKeyStream(dst, src, key, nonce []byte, counter uint32)

XORKeyStream XORs src with the ChaCha20 keystream and writes the result to dst.

This section is empty.