chacha.h File Reference

Classes for ChaCha8, ChaCha12 and ChaCha20 stream ciphers. More...

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Classes
struct	ChaCha_Info
	ChaCha stream cipher information. More...
class	ChaCha_Policy
	ChaCha stream cipher implementation. More...
struct	ChaCha
	ChaCha stream cipher. More...
struct	ChaChaTLS_Info
	IETF ChaCha20 stream cipher information. More...
class	ChaChaTLS_Policy
	IETF ChaCha20 stream cipher implementation. More...
struct	ChaChaTLS
	IETF ChaCha20 stream cipher. More...
struct	XChaCha20_Info
	IETF XChaCha20 stream cipher information. More...
class	XChaCha20_Policy
	IETF XChaCha20 stream cipher implementation. More...
struct	XChaCha20
	IETF XChaCha20 stream cipher. More...

Detailed Description

Classes for ChaCha8, ChaCha12 and ChaCha20 stream ciphers.

Crypto++ provides Bernstein and ECRYPT's ChaCha from ChaCha, a variant of Salsa20 (2008.01.28). Crypto++ also provides the IETF implementation of ChaCha using the ChaChaTLS name. Bernstein's implementation is _slightly_ different from the TLS working group's implementation for cipher suites TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, and TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256. Finally, the library provides XChaCha: eXtended-nonce ChaCha and AEAD_XChaCha20_Poly1305 (rev. 03).

Since

ChaCha since Crypto++ 5.6.4, ChaChaTLS and XChaCha20 since Crypto++ 8.1

Definition in file chacha.h.